PIPER GLOBAL FUNDS INC /MN
497, 1996-05-17
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<PAGE>
- -
 
                                                          [LOGO]
 
                                                    HERCULES FUNDS INC.
                                                    HERCULES LATIN AMERICAN
                                                    VALUE FUND
                                                    222 SOUTH NINTH STREET
                                                    MINNEAPOLIS, MN 55402-3804
 
May 17, 1996
 
Dear Shareholder:
 
A special meeting of shareholders of Hercules Latin American Value Fund (the
"Fund") will be held at the offices of Hercules Funds Inc. on June 18, 1996 at
10 a.m. central time at 222 South Ninth Street, 3rd floor, Minneapolis,
Minnesota.
 
This meeting has been called to seek shareholder approval to reorganize the
Hercules Latin American Value Fund into the Emerging Markets Growth Fund, a
newly-formed series of Piper Global Funds Inc. If approved, shareholders would
receive shares of Emerging Markets Growth Fund with a value equal to the value
of their Fund shares.
 
This reorganization is part of a larger proposal to eliminate Hercules as a
separate family of funds, as we believe the funds are unlikely to grow to a size
which is economically viable. If you are a shareholder in more than one Hercules
fund, you will receive separate mailings of proxy materials for each fund.
PLEASE RETURN A COMPLETED PROXY CARD FOR EACH FUND IN WHICH YOU ARE INVESTED.
 
We urge you to read all of the enclosed materials carefully but direct your
attention to the following important points:
 
    - The Board of Directors of the Company has unanimously approved the
      reorganization and recommends that you vote FOR the reorganization.
 
    - Shareholders will not incur any commissions, sales loads or other charges
      in connection with the reorganization and Piper Capital, the investment
      manager for both funds, has agreed to pay for all direct expenses
      including the proxy solicitation.
 
    - The two funds have similar investment objectives and invest according to
      similar policies and restrictions, although Emerging Markets Growth Fund
      invests in a broader range of emerging markets countries.
 
    - The reorganization would enable Fund shareholders to enjoy an expanded
      range of mutual fund investment options, including 16 other open-end Piper
      Funds. Shareholders who receive Emerging Markets Growth Fund shares in the
      reorganization would have exchange privileges within the Piper family of
      funds.
 
    - Total expenses for Emerging Markets Growth Fund are lower than the Fund's
      expenses after discounting voluntary waivers and reimbursements which are
      currently in effect for the Fund. Piper Capital and the Fund's distributor
      do not presently intend to continue waiving expenses for the Fund after
      June 30, 1996.
 
    - The reorganization will not result in any federal taxable income to the
      Fund or its shareholders.
<PAGE>
PLEASE MARK, SIGN, DATE AND RETURN THE ENCLOSED PROXY CARD AS SOON AS POSSIBLE,
AS YOUR PROMPT RESPONSE WILL ELIMINATE THE NEED FOR ADDITIONAL MAILINGS. A
postage-paid envelope is enclosed with each proxy mailing for your convenience.
As the meeting date approaches, if you haven't voted you may receive a telephone
call reminding you to vote.
 
The enclosed QUESTION AND ANSWER sheet provides more detailed information about
the proposal. Also enclosed are the formal Notice of Special Meeting and Proxy
Statement/Prospectus documents. If you have additional questions, please contact
your investment professional or call Piper Capital at 1 800 866-7778 and press
2.
 
Sincerely,
 
            [SIG]
 
William H. Ellis
President
<PAGE>
SHAREHOLDER Q&A
 
                                                                    MAY 17, 1996
- --------------------------------------------------------------------------------
 
ON FEBRUARY 6, 1996, PIPER CAPITAL MANAGEMENT INCORPORATED RECOMMENDED TO THE
BOARD OF DIRECTORS OF HERCULES FUNDS INC. THAT IT ELIMINATE HERCULES AS A
SEPARATE FUND FAMILY BECAUSE THE FUNDS ARE TOO SMALL TO BE ECONOMICALLY VIABLE.
THE BOARD UNANIMOUSLY AGREED THAT IT WOULD BE IN THE BEST INTEREST OF
SHAREHOLDERS TO REORGANIZE THE HERCULES EQUITY FUNDS INTO APPROPRIATE PIPER
FUNDS AND TO LIQUIDATE THE WORLD BOND FUND. THESE PROPOSALS ARE SUBJECT TO
SHAREHOLDER APPROVAL.
 
WHAT WILL HAPPEN TO THE VARIOUS HERCULES FUNDS?
 
Piper Capital is proposing the following changes:
 
    - Hercules North American Growth and Income Fund will be reorganized into
      Growth and Income Fund, a series of Piper Funds Inc.
 
    - Hercules European Value Fund and Hercules Pacific Basin Value Fund will be
      reorganized into Pacific-European Growth Fund, a series of Piper Global
      Funds Inc.
 
    - Hercules Latin American Value Fund will be reorganized into Emerging
      Markets Growth Fund, a newly-created series of Piper Global Funds Inc.
 
    - Hercules World Bond Fund will be liquidated and net assets distributed to
      shareholders.
 
WHAT ABOUT HERCULES MONEY MARKET FUND?
 
We expect that shareholders will redeem out of Hercules Money Market Fund as a
result of Piper Capital's decision to discontinue the fund's 1% expense
limitation effective July 1, 1996.
 
WHY WERE THESE CHANGES RECOMMENDED?
 
The Hercules funds have not been able to attract sufficient assets to make them
economically viable to operate and prospects for future growth appear remote. If
the changes are approved, we believe shareholders will benefit from:
 
    - A potential increase in operating efficiencies and therefore a reduction
      in expense ratios
 
    - The potential for greater investment diversification and more flexibility
      in portfolio management because Emerging Markets Growth Fund can invest in
      a broader range of countries
 
    - The advantages of ownership within a larger fund family, including
      flexibility to transfer between funds in the Piper funds complex at net
      asset value
 
WILL SHAREHOLDERS PAY A SALES LOAD WHEN THEY MOVE INTO THE PIPER FUNDS?
 
No. Even though Hercules shareholders paid no front-end sales charges, the
maximum 4% front-end load on Piper fund shares acquired in the reorganizations
will be waived if the proposal is approved.
 
WILL THE HERCULES CONTINGENT DEFERRED SALES CHARGE (CDSC) BE WAIVED?
 
Yes. Shareholders subject to a CDSC (those who purchased shares after June 19,
1995) will not pay a CDSC if they exchange into the respective Piper fund
through the reorganization.
 
WILL SHAREHOLDERS BE ABLE TO EXCHANGE OR TRANSFER TO OTHER PIPER OPEN-END FUNDS
AT NET ASSET VALUE?
 
Yes. After Hercules fund shares are reorganized into the applicable Piper fund,
shareholders will then be able to exchange or transfer into other Piper funds at
net asset value.
 
HOW MANY OTHER PIPER OPEN-END FUNDS ARE AVAILABLE?
 
The enclosed brochure lists the 16 other funds available in Piper's family of
open-end funds.
<PAGE>
WHAT PERCENTAGE OF SHAREHOLDERS MUST VOTE "YES" FOR THE PROPOSAL TO PASS?
 
For each fund, shareholders representing a majority of the outstanding shares
must vote yes in order for the proposed reorganization or liquidation of that
fund to occur.
 
IF APPROVED, HOW WILL THE REORGANIZATIONS BE ACCOMPLISHED?
 
The reorganizations would be accomplished by combining substantially all of the
assets of each fund with the corresponding Piper fund and distributing shares of
the Piper fund with a value equal to the value of each Hercules shareholder's
fund holdings.
 
WHO WILL PAY FOR THE REORGANIZATION?
 
Piper Capital has agreed to pay all direct costs associated with the proposed
reorganizations and liquidation including the costs of proxy solicitation. No
commission, sales loads or other charges will be incurred by shareholders. Also,
we anticipate the proposed reorganizations will be completed on a tax-free
basis.
 
HOW DOES HERCULES LATIN AMERICAN VALUE FUND COMPARE WITH THE EMERGING MARKETS
GROWTH FUND?
 
Here are a few comparisons of fund characteristics. Please review the Proxy
Statement/Prospectus for a complete comparison:
 
<TABLE>
<CAPTION>
                                     HERCULES LATIN                PIPER EMERGING
                                     AMERICAN VALUE                MARKETS GROWTH
<S>                           <C>                           <C>
Investment objective          Long-term capital             Long-term capital
                              appreciation and, to a        appreciation. Current income
                              lesser extent, current        is incidental to this
                              income                        objective
Investment policies           65% minimum in Latin          65% minimum in emerging
                              American countries            markets countries
Country allocation            At least three different      At least three different
                              countries in Latin America    emerging markets countries
Net assets as of 3/31/96      $16,336,370                   (Not yet commenced
                                                            operations)
Adviser/Sub-advisers          Piper Capital/Bankers Trust   Piper Capital/Edinburgh Fund
                                                            Managers plc
</TABLE>
<PAGE>
                              HERCULES FUNDS INC.
                       Hercules Latin American Value Fund
                              Piper Jaffray Tower
                             222 South Ninth Street
                       Minneapolis, Minnesota 55402-3804
 
                            ------------------------
 
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                            TO BE HELD JUNE 18, 1996
 
                             ---------------------
 
TO THE SHAREHOLDERS OF HERCULES LATIN AMERICAN VALUE FUND,
 A SERIES OF HERCULES FUNDS INC.
 
    Notice   is  hereby  given  that  a   Special  Meeting  (the  "Meeting")  of
shareholders of Hercules  Latin American  Value Fund  (the "Fund"),  one of  six
portfolios of Hercules Funds Inc. (the "Company"), will be held in the office of
the  Company, 222 South Ninth Street,  3rd Floor, Minneapolis, MN 55402-3804, on
June 18, 1996 at 10:00 a.m. central time. Piper Capital will validate parking at
the Energy Center Ramp  located at the  corner of South  Ninth Street and  Third
Avenue  South. Please bring  your parking ticket to  the Meeting for validation.
The purposes of the Meeting are:
 
     I. To consider and vote upon an Agreement and Plan of Reorganization, dated
        as of       ,  1996 (the "Plan"), by and between the Company, on  behalf
        of  the Fund, and Piper Global Funds Inc. ("Piper Global"), on behalf of
        Emerging Markets  Growth Fund  ("Emerging  Markets Fund"),  pursuant  to
        which  substantially all of the  assets of the Fund  will be acquired by
        Emerging  Markets  Fund  and  shareholders  of  the  Fund  will   become
        shareholders  of  Emerging  Markets Fund  receiving  shares  of Emerging
        Markets Fund with a value  equal to the value  of their holdings in  the
        Fund.  A vote in favor of the Plan will be considered a vote in favor of
        an amendment to the articles of incorporation of the Company required to
        effect the reorganization as contemplated by the Plan.
 
     II. To consider and act upon such other matters as may properly come before
         the Meeting or any adjournment thereof.
 
               YOUR DIRECTORS UNANIMOUSLY RECOMMEND THAT YOU VOTE
                        IN FAVOR OF THE ABOVE PROPOSAL.
 
    The attached  Proxy Statement/Prospectus  describes  the above  proposal  in
detail  and is being sent to shareholders of  record as of the close of business
on April 25, 1996, who are the shareholders entitled to notice of and to vote at
the Meeting. Please read the Proxy Statement/Prospectus carefully before telling
us through your proxy or in person how you wish your shares to be voted.
 
                                          By Order of the Board of Directors
 
                                          SUSAN SHARP MILEY
                                          SECRETARY
 
May 17, 1996
 
                                   IMPORTANT
 
  THE BOARD OF  DIRECTORS URGES YOU  TO MARK, SIGN  AND RETURN THE  ENCLOSED
    PROXY  AS SOON  AS POSSIBLE  WHETHER OR NOT  YOU EXPECT  TO ATTEND THE
      MEETING IN  PERSON. THE  ENCLOSED  ADDRESSED ENVELOPE  REQUIRES  NO
                 POSTAGE AND IS PROVIDED FOR YOUR CONVENIENCE.
<PAGE>
                          EMERGING MARKETS GROWTH FUND
                      A Series of Piper Global Funds Inc.
                              Piper Jaffray Tower
                             222 South Ninth Street
                       Minneapolis, Minnesota 55402-3804
                           (800) 866-7778 (toll free)
 
                            ------------------------
 
             Acquisition of the Assets of Latin American Value Fund
                        A Series of Hercules Funds Inc.
 
         By and in Exchange for Shares of Emerging Markets Growth Fund
                      A Series of Piper Global Funds Inc.
 
                            ------------------------
 
    This  Proxy  Statement/Prospectus  is  being  furnished  to  shareholders of
Hercules Latin American Value Fund (the "Fund"), a series of Hercules Funds Inc.
(the "Company"),  in connection  with an  Agreement and  Plan of  Reorganization
dated  as of April 15, 1996 (the  "Plan") pursuant to which substantially all of
the assets  of  the  Fund will  be  acquired  by Emerging  Markets  Growth  Fund
("Emerging Markets Fund"), a series of Piper Global Funds Inc. ("Piper Global"),
in  exchange  for  shares  of  Emerging  Markets  Fund.  As  a  result  of  this
transaction, shareholders  of  the Fund  will  become shareholders  of  Emerging
Markets Fund and will receive shares of Emerging Markets Fund with a value equal
to  the value of their holdings  in the Fund as of  the date of the transaction.
The terms and conditions  of this transaction are  more fully described in  this
Proxy Statement/Prospectus and in the Plan, attached hereto as EXHIBIT A.
 
    Emerging  Markets  Fund  is a  non-diversified  series of  Piper  Global, an
open-end management investment company,  the shares of which  can be offered  in
more  than  one series.  The investment  objective of  Emerging Markets  Fund is
long-term capital appreciation. Current income is incidental to this  objective.
Emerging  Markets Fund  seeks to achieve  its investment  objective by investing
primarily in Common Stock (as herein defined) of issuers in the world's emerging
securities markets. Emerging  Markets Fund does  not invest in  Common Stock  of
U.S. companies.
 
    This  Proxy  Statement/Prospectus  sets  forth  concisely  information about
Emerging Markets Fund that shareholders of the Fund should know before voting on
the Plan. This Proxy Statement also constitutes a Prospectus of Emerging Markets
Fund filed with  the Securities  and Exchange Commission  (the "Commission")  as
part  of  its Registration  Statement on  Form N-14.  A Statement  of Additional
Information  relating   to   the   reorganization  described   in   this   Proxy
Statement/Prospectus  (the "Additional Statement")  dated May 9,  1996, has also
been filed with  the Commission  as part of  the Registration  Statement and  is
incorporated  herein by reference. Also incorporated herein by reference are the
Company's Prospectus dated August 29, 1995, the Company's Annual Report for  its
fiscal year ended June 30, 1995 and the Company's Semi-Annual Report for the six
months  ended December 31, 1995. Such documents are available without charge, as
noted under "Available Information" below.
 
    INVESTORS ARE ADVISED TO READ AND RETAIN THIS PROXY STATEMENT/PROSPECTUS FOR
                               FUTURE REFERENCE.
 
THESE SECURITIES HAVE NOT  BEEN APPROVED OR DISAPPROVED  BY THE SECURITIES  AND
 EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION,  NOR  HAS  THE
   SECURITIES AND EXCHANGE  COMMISSION OR ANY  STATE SECURITIES  COMMISSION
     PASSED  ON  THE  ACCURACY  OR  ADEQUACY OF  THIS  PROSPECTUS.     ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
<PAGE>
                               TABLE OF CONTENTS
                           PROXY STATEMENT/PROSPECTUS
 
<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                             ---------
<S>                                                                                                          <C>
INTRODUCTION...............................................................................................          1
  General..................................................................................................          1
  Record Date; Share Information...........................................................................          1
  Proxies..................................................................................................          1
  Expenses of Solicitation.................................................................................          2
  Vote Required............................................................................................          2
SYNOPSIS...................................................................................................          2
  The Reorganization.......................................................................................          3
  Fee Table................................................................................................          3
  Tax Consequences of the Reorganization...................................................................          5
  Dissenting Shareholders' Rights of Appraisal.............................................................          5
  Comparison of the Fund and Emerging Markets Fund.........................................................          5
PRINCIPAL RISK FACTORS.....................................................................................          7
THE REORGANIZATION.........................................................................................          8
  Background...............................................................................................          8
  The Board's Consideration................................................................................          9
  The Plan.................................................................................................         10
  Tax Aspects of the Reorganization........................................................................         11
  Dissenters' Rights.......................................................................................         13
  Description of Shares....................................................................................         13
  Capitalization Table (unaudited).........................................................................         13
COMPARISON OF INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS.............................................         13
  Investment Objectives and Policies.......................................................................         13
  Investment Restrictions..................................................................................         15
  Interest of Certain Persons..............................................................................         15
ADDITIONAL INFORMATION ABOUT THE FUND AND EMERGING MARKETS FUND............................................         15
  General..................................................................................................         15
  Financial Information....................................................................................         15
  Management...............................................................................................         15
  Description of Securities and Shareholder Inquiries......................................................         16
  Dividends, Distributions and Taxes.......................................................................         16
  Purchases and Redemptions................................................................................         16
  Pending Legal Proceedings................................................................................         16
MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE................................................................         16
FINANCIAL STATEMENTS AND EXPERTS...........................................................................         16
LEGAL MATTERS..............................................................................................         16
AVAILABLE INFORMATION......................................................................................         16
OTHER BUSINESS.............................................................................................         17
EXHIBIT A-- Agreement and Plan of Reorganization, dated as of April 15, 1996 by and between the Company, on
           behalf of the Fund, and Piper Global, on behalf of Emerging Markets Growth Fund.................        A-1
APPENDIX A to Proxy Statement/Prospectus--Additional Information Regarding Emerging Markets Growth Fund....
</TABLE>
 
                                       i
<PAGE>
                            ------------------------
 
                           PROXY STATEMENT/PROSPECTUS
                       Hercules Latin American Value Fund
                        Special Meeting of Shareholders
                            to be held June 18, 1996
 
                            ------------------------
 
                                  INTRODUCTION
 
General
 
    This  Proxy  Statement/Prospectus  is  being  furnished  to  shareholders of
Hercules Latin American  Value Fund  (the "Fund"), a  non-diversified series  of
Hercules  Funds Inc. ("the Company"), an open-end management investment company,
in connection with  the solicitation by  the Board of  Directors of the  Company
(the  "Board") of proxies to  be used at the  Special Meeting of Shareholders of
the Company to be held at the office of the Company, 222 South Ninth Street, 3rd
Floor, Minneapolis, Minnesota 55402-3804 on June 18, 1996 at 10:00 a.m.  central
time  and  any adjournments  thereof (the  "Meeting"). It  is expected  that the
mailing of this  Proxy Statement/Prospectus  will be made  on or  about May  17,
1996.
 
    At  the Meeting, Fund shareholders will  consider and vote upon an Agreement
and Plan of  Reorganization, dated as  of April  15, 1996 (the  "Plan"), by  and
between  the Company, on behalf of the Fund, and Piper Global Funds Inc. ("Piper
Global"), on behalf of Emerging  Markets Growth Fund ("Emerging Markets  Fund"),
pursuant  to which substantially all of the  assets of the Fund will be acquired
by Emerging Markets Fund in exchange for  shares of Emerging Markets Fund. As  a
result of this transaction, shareholders of the Fund will become shareholders of
Emerging  Markets Fund and will receive shares in Emerging Markets Fund equal to
the value of their  holdings in the  Fund on the date  of such transaction  (the
transactions  described  above are  referred  to as  the  "Reorganization"). The
shares to be  issued by  Emerging Markets  Fund pursuant  to the  Reorganization
("Emerging  Markets Fund Shares")  will be issued  at net asset  value without a
sales charge. Further information relating to Emerging Markets Fund is set forth
in Appendix A hereto. A vote in favor  of the Plan will be considered a vote  in
favor  of an amendment to the articles  of incorporation of the Company required
to effect the Reorganization as contemplated by the Plan.
 
    The information concerning the  Fund contained herein  has been supplied  by
the  Company  and the  information  concerning Emerging  Markets  Fund contained
herein has been supplied by Piper Global.
 
Record Date; Share Information
 
    The Board has fixed the  close of business on April  25, 1996 as the  record
date  (the "Record Date") for the determination  of the holders of shares of the
Fund entitled to notice of, and to vote at, the Meeting. As of the Record  Date,
there  were 1,900,904 shares of the Fund  issued and outstanding. The holders of
record on the Record  Date of shares of  the Fund are entitled  to one vote  per
share  held and  a fractional  vote with  respect to  fractional shares  on each
matter submitted to  a vote at  the Meeting. The  holders of 10%  of the  shares
outstanding and entitled to vote will constitute a quorum at the Meeting.
 
    To  the knowledge of  the Board, as of  the Record Date,  no person owned of
record or beneficially 5% or more of  the outstanding shares of the Fund. As  of
the  Record Date, the directors  and officers of the  Company, as a group, owned
less than 1% of the outstanding shares of the Fund.
 
    As of the Record Date, there were no outstanding shares of Emerging  Markets
Fund.
 
Proxies
 
    The enclosed form of proxy, if properly executed and returned, will be voted
in  accordance with  the choice  specified thereon. The  proxy will  be voted in
favor of the Plan  unless a choice  is indicated to vote  against or to  abstain
from  voting on the  Plan. The Board knows  of no business,  other than that set
forth in
 
                                       1
<PAGE>
the Notice of Special Meeting, to be presented for consideration at the Meeting.
However, the  proxy  confers  discretionary authority  upon  the  persons  named
therein to vote as they determine on other business, not currently contemplated,
which may come before the Meeting.
 
    Abstentions will be included for purposes of determining whether a quorum is
present at the Meeting and for purposes of calculating the vote but shall not be
deemed  to have been voted in favor of such matters. Broker non-votes are shares
held in street name  for which the broker  indicates that instructions have  not
been  received from the beneficial owners or  other persons entitled to vote and
for which  the  broker does  not  have discretionary  voting  authority.  Broker
non-votes  will  be included  for purposes  of determining  whether a  quorum is
present at the Meeting, but will not be deemed to be represented at the  Meeting
for purposes of calculating whether matters to be voted upon at the Meeting have
been  approved. Because approval of  the Plan requires an  affirmative vote by a
majority of the outstanding  shares, abstentions and  broker non-votes all  have
the same effect as a negative vote.
 
    If a shareholder executes and returns a Proxy Card but fails to indicate how
the  votes should be  cast, the proxy  will be voted  in favor of  the Plan. The
proxy may be revoked at any time prior to the voting thereof by: (i)  delivering
written  notice of revocation to the Secretary of the Company at 222 South Ninth
Street, Minneapolis, Minnesota 55402-3804; (ii) attending the Meeting and voting
in person; or  (iii) signing and  returning a  new Proxy Card  (if returned  and
received  in time  to be voted).  Attendance at the  Meeting will not  in and of
itself revoke a proxy.
 
    In the event that sufficient votes to  approve the Plan are not obtained  by
the  Meeting date, or, subject  to approval of the  Board, for other reasons, an
adjournment or adjournments of the Meeting may be sought. Any adjournment  would
require  a vote in favor of the adjournment  by the holders of a majority of the
shares present  at the  Meeting (or  any adjournment  thereof) in  person or  by
proxy.  The persons named as proxies will vote all shares represented by proxies
which they  are  required  to  vote  in  favor of  the  Plan,  in  favor  of  an
adjournment,  and will vote all  shares which they are  required to vote against
the Plan, against an adjournment. Approval  of the Plan will be deemed  approval
of the amendment to the articles of incorporation of the Company attached to the
Plan.
 
Expenses of Solicitation
 
    All  expenses  of this  solicitation, including  the  cost of  preparing and
mailing this  Proxy  Statement/  Prospectus,  will be  borne  by  Piper  Capital
Management Incorporated ("Piper Capital"), investment manager to the Company and
Piper Global. In addition to the solicitation of proxies by mail, proxies may be
solicited  by  officers and  regular employees  of  the Company,  Piper Capital,
and/or  the  Fund's  distributor,   without  compensation  other  than   regular
compensation,   personally  or  by  mail,  telephone,  telegraph  or  otherwise.
Brokerage houses,  banks  and other  fiduciaries  may be  requested  to  forward
soliciting   material  to  the  beneficial  owners   of  shares  and  to  obtain
authorization for the  execution of proxies.  For those services,  if any,  they
will be reimbursed by Piper Capital for their reasonable out-of-pocket expenses.
In  addition,  arrangements  have  been  made  with  Shareholder  Communications
Corporation, an independent  shareholder communication  firm, to  assist in  the
solicitation of proxies.
 
Vote Required
 
    Approval  of the  Plan by the  Fund's shareholders  requires the affirmative
vote of a majority (I.E., more than 50%) of the outstanding shares of the  Fund.
If the Plan is not approved by shareholders, the Fund will continue in existence
and the Board will consider alternative actions.
 
                                    SYNOPSIS
 
    THE FOLLOWING IS A SYNOPSIS OF CERTAIN INFORMATION CONTAINED OR INCORPORATED
BY REFERENCE IN THIS PROXY STATEMENT/PROSPECTUS. THIS SYNOPSIS IS ONLY A SUMMARY
AND  IS QUALIFIED IN ITS ENTIRETY BY  THE MORE DETAILED INFORMATION CONTAINED OR
INCORPORATED BY  REFERENCE  IN THIS  PROXY  STATEMENT/PROSPECTUS AND  THE  PLAN.
SHAREHOLDERS  SHOULD CAREFULLY REVIEW  THIS PROXY STATEMENT/  PROSPECTUS AND THE
PLAN IN  THEIR  ENTIRETY  AND, IN  PARTICULAR,  INFORMATION  REGARDING  EMERGING
MARKETS FUND CONTAINED IN APPENDIX A HERETO.
 
                                       2
<PAGE>
The Reorganization
 
    The Plan provides for the transfer of substantially all of the assets of the
Fund,  subject to stated  liabilities, to Emerging Markets  Fund in exchange for
Emerging Markets Fund Shares. The aggregate net asset value of Emerging  Markets
Fund  Shares issued in  the exchange will  equal the aggregate  value of the net
assets of the Fund received  by Emerging Markets Fund.  On or after the  closing
date  scheduled  for  the Reorganization  (the  "Closing Date"),  the  Fund will
distribute Emerging  Markets Fund  Shares received  by the  Fund to  holders  of
shares  of  the  Fund  issued  and outstanding  as  of  the  Valuation  Date (as
hereinafter defined) in complete liquidation of the Fund. If all other series of
the Company effect similar reorganizations, or otherwise liquidate, the  Company
will  take  all  necessary  steps  to  effect  its  dissolution  as  a Minnesota
corporation and its deregistration under the Investment Company Act of 1940,  as
amended  (the  "1940  Act").  As  a  result  of  the  Reorganization,  each Fund
shareholder will receive  that number  of full and  fractional Emerging  Markets
Fund  Shares equal in value to such  shareholder's shares of the Fund. The Board
has determined that  the interests  of existing  Fund shareholders  will not  be
diluted as a result of the Reorganization.
 
    For  the  reasons set  forth  below under  "The  Reorganization--The Board's
Consideration,"  the  Board,  including  all  of  the  directors  who  are   not
"interested  persons" of the  Company, as that  term is defined  in the 1940 Act
("Independent Directors"), has unanimously concluded that the Reorganization  is
in  the best interests of the Fund  and its shareholders and recommends approval
of the Plan.
 
Fee Table
 
    The funds each  pay a variety  of expenses for  management of their  assets,
distribution  of  their  shares  and  other  services,  and  those  expenses are
reflected in the  net asset value  per share of  each of the  Fund and  Emerging
Markets Fund, respectively. The following table sets forth the expenses and fees
for  the  Fund during  its most  recent fiscal  year and  the expenses  and fees
estimated for Emerging Markets Fund, which has not yet commenced operations.
 
    SHAREHOLDER TRANSACTION EXPENSES
 
<TABLE>
<CAPTION>
                                                                                                 Emerging
                                                                                                  Markets
                                                                                       Fund        Fund
                                                                                     ---------  -----------
<S>                                                                                  <C>        <C>
Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)
 (1)...............................................................................         0%       4.00%
Maximum Deferred Sales Charge (2)..................................................      2.00%          0%
Exchange Fee (3)...................................................................  $       0   $       0
</TABLE>
 
    ANNUAL FUND OPERATING EXPENSES AS A PERCENTAGE OF AVERAGE NET ASSETS
 
<TABLE>
<CAPTION>
                                                                                                 Emerging
                                                                                                  Markets
                                                                                       Fund        Fund
                                                                                     ---------  -----------
<S>                                                                                  <C>        <C>
Management Fees....................................................................      1.00%       1.00%
12b-1 Fees (after voluntary fee limitation) (4)....................................      0.50%       0.32%
Other Expenses (after voluntary expense reimbursement) (5).........................      0.50%       0.68%*
Total Fund Operating Expenses (after voluntary fee limitation and expense
 reimbursement) (5)................................................................      2.00%       2.00%
</TABLE>
 
- ---------
*   Estimated
 
(1) No sales charge will be imposed on Emerging Markets Fund Shares acquired  in
    the  Reorganization. On unrelated  purchases, the front  end sales charge of
    4.00% applies to purchases of  less than $100,000 and  scales down to 0%  on
    purchases of $500,000 or more.
 
(2) The  Fund's maximum  contingent deferred sales  charge ("CDSC")  is 2.00% on
    redemptions during the first 365 days after purchase; the charge declines to
    1% during the  next 365 days  after purchase, reaching  zero thereafter.  In
    connection  with purchases of Emerging Markets  Fund of $500,000 or more, on
    which no front-end sales charge is imposed, a 1.00% CDSC will be imposed  on
    redemptions
 
                                       3
<PAGE>
    occurring  within  24  months  of  purchase.  No  CDSC  will  be  imposed on
    shareholders acquiring Emerging  Market Fund Shares  in the  Reorganization.
    See   "Comparison  of   the  Fund  and   Emerging  Markets  Fund--Purchases,
    Redemptions and Exchanges."
 
(3) There is a $50 fee for each exchange in excess of 12 exchanges per year  for
    the  Fund. There is a $5 fee for  each exchange in excess of 4 exchanges per
    year for Emerging Markets Fund.
 
(4) A portion of the  12b-1 fee equal  to 0.25% of average  daily net assets  is
    characterized   as  a  service  fee  within  the  meaning  of  the  National
    Association of Securities Dealers, Inc. ("NASD") guidelines. 12b-1 fees  for
    the  Fund are currently limited voluntarily  to 0.50% by Piper Jaffray Inc.,
    the distributor for the Fund and Emerging Markets Fund (the  "Distributor").
    The  Distributor will voluntarily limit 12b-1 fees for Emerging Markets Fund
    to 0.32%. Absent such fee limitations,  12b-1 fees may not exceed 0.70%  and
    0.50%  per annum of  the average daily  net assets of  the Fund and Emerging
    Markets Fund, respectively.
 
(5) For the Fund's current fiscal year, Piper Capital has agreed to  voluntarily
    reimburse  the Fund  so that  Total Fund Operating  Expenses on  a per annum
    basis do not  exceed 2.00% of  average daily net  assets of the  Fund. As  a
    result,  certain "Other  Expenses" of the  Fund are borne  by Piper Capital.
    Without such reimbursements and the  12b-1 fee limitations discussed  above,
    Other Expenses would have been 1.77% and Total Fund Operating Expenses would
    have  been 3.47% of average daily net assets of the Fund for the fiscal year
    ended June 30,  1995. Piper  Capital and  the Distributor  do not  presently
    intend to continue these voluntary limitations beyond the Fund's fiscal year
    ending  June 30,  1996. As  noted above, Emerging  Markets Fund  has not yet
    commenced operations. However, as is the case currently for the Fund,  Piper
    Capital  will limit Total  Fund Operating Expenses  on a per  annum basis to
    2.00% of average  daily net assets  until at least  June 1997.  Accordingly,
    shareholders will experience no change in Total Fund Operating Expenses as a
    result  of the Reorganization. Without such reimbursements and the 12b-1 fee
    limitations discussed above, Other  Expenses are estimated  to be 1.77%  and
    Total  Fund Operating Expenses for Emerging Markets Fund are estimated to be
    3.27% of average daily net assets.
 
    EXAMPLE
 
    To attempt to show the effect of these expenses on an investment over  time,
the  example shown below has been created. The expenses set forth in the example
below may increase if the  fee limitations and expense reimbursements  discussed
above are removed. As noted above, Emerging Markets Fund charges a maximum 4.00%
front-end  sales charge  on new  purchases. The  expenses shown  below have been
calculated as if no such sales charge were imposed because Fund shareholders who
receive Emerging Markets  Fund Shares  in the  Reorganization will  not pay  the
front-end  sales charge with respect to  those shares. Assuming that an investor
makes a $1,000 investment in either the Fund or Emerging Markets Fund, that  the
annual  return is 5.00% and that the  Total Fund Operating Expenses are the ones
shown in the  chart above, if  the investment was  redeemed at the  end of  each
period  shown below, the investor would incur  the following expenses by the end
of each period shown:
 
<TABLE>
<CAPTION>
                                          1 year   3 years   5 years    10 years
                                          ------   -------   --------   --------
<S>                                       <C>      <C>       <C>        <C>
The Fund................................   $40       $63       $108       $233
Emerging Markets Fund*..................   $20       $63       $108       $233
</TABLE>
 
    If such investment was not redeemed, the investor would incur the  following
expenses:
 
<TABLE>
<CAPTION>
                                          1 year   3 years   5 years    10 years
                                          ------   -------   --------   --------
<S>                                       <C>      <C>       <C>        <C>
The Fund................................   $20       $63       $108       $233
Emerging Markets Fund*..................   $20       $63       $108       $233
</TABLE>
 
- ---------
*Expenses  for shares of Emerging Markets  Fund purchased subject to the maximum
 front-end sales charge would be: $59, $100, $143 and $263 for the one-, three-,
 five- and ten-year periods shown, respectively.
 
    The above  example should  not be  considered a  representation of  past  or
future expenses or performance. Actual operating expenses may be greater or less
than those shown.
 
                                       4
<PAGE>
    Long-term  shareholders of  either fund  may pay  more in  sales charges and
distribution fees than the  economic equivalent of  the maximum front-end  sales
charges permitted by the NASD.
 
Tax Consequences of the Reorganization
 
    As  a condition to the  Reorganization, the Fund will  receive an opinion of
the law firm Gordon Altman Butowsky Weitzen Shalov & Wein to the effect that the
Reorganization will constitute a tax-free reorganization for Federal income  tax
purposes,  and  that no  gain or  loss will  be  recognized by  the Fund  or the
shareholders of the  Fund for Federal  income tax  purposes as a  result of  the
Reorganization.  For  further  information  about the  tax  consequences  of the
Reorganization, see  "The  Reorganization--Tax Aspects  of  the  Reorganization"
below.
 
Dissenting Shareholders' Rights of Appraisal
 
    Although  under  Minnesota  law  shareholders of  a  company  acquired  in a
reorganization who  do not  vote to  approve the  reorganization generally  have
"appraisal  rights" (where  they may  elect to  have the  "fair value"  of their
shares (determined in  accordance with Minnesota  law) judicially appraised  and
paid to them), the Division of Investment Management of the Commission has taken
the position that Rule 22c-1 under the 1940 Act preempts appraisal provisions in
state  statutes.  This rule  provides that  no  open-end investment  company may
redeem its shares other than at net asset value next computed after receipt of a
tender of such security for redemption. For further information about rights  of
appraisal, see "The Reorganization--Dissenters' Rights."
 
Comparison of the Fund and Emerging Markets Fund
 
    INVESTMENT OBJECTIVES AND POLICIES.  The Fund and Emerging Markets Fund have
similar  investment  objectives.  The Fund's  objectives  are  long-term capital
appreciation and, to a lesser  extent, current income. The investment  objective
of  Emerging Markets Fund  is long-term capital  appreciation. Current income is
incidental to this  objective. The investment  objectives of both  the Fund  and
Emerging  Markets  Fund are  fundamental and,  accordingly,  may not  be changed
without shareholder approval.
 
    The Fund  seeks to  achieve its  investment objectives  by investing,  under
normal  circumstances, at least 65% of its total assets in securities of issuers
located in Latin America. Emerging Markets Fund seeks to achieve its  investment
objective  by investing, under  normal circumstances, at least  65% of its total
assets in Common Stock  (as herein defined) of  issuers in the world's  emerging
securities  markets.  The initial  portfolio of  Emerging  Markets Fund  will be
comprised exclusively  of  the portfolio  securities  of the  Fund  acquired  by
Emerging  Markets Fund in the Reorganization. Accordingly, Emerging Markets Fund
will be initially  invested entirely in  Latin America. It  is anticipated  that
over  time, as  new opportunities arise,  investments will be  allocated among a
variety of regions. Accordingly, the principal difference between the two  Funds
is  that, whereas the Fund invests  primarily in Latin America, Emerging Markets
Fund will  invest in  additional  emerging markets  countries with  no  expected
emphasis  on  Latin  America.  In  addition,  although  emphasis  is  placed  on
investments in  equity securities,  the Fund  may invest  without limitation  in
investment  grade debt securities of governmental and private issuers (including
bonds,  notes,   debentures,  Brady   Bonds,  mortgage-backed   securities   and
asset-backed  securities),  whereas Emerging  Markets Fund  will invest  in debt
instruments solely for temporary defensive purposes.
 
    The Fund  and  Emerging  Markets  Fund may  invest  in  American  Depository
Receipts ("ADRs"), European Depository Receipts ("EDRs") and in other investment
companies  (up to the limits prescribed in the 1940 Act.) The Fund may invest up
to 20% of  its assets in  ADRs sponsored  by persons other  than the  underlying
issuers  ("unsponsored  ADRs"). The  Emerging  Markets Fund  does  not currently
intend to invest in unsponsored ADRs. The Fund may also invest up to 10% of  its
total  assets in foreign index linked instruments and in loan participations and
assignments; however, Emerging  Markets Fund may  not invest in  these types  of
securities.
 
    The  Fund may purchase and sell put  and call options, futures contracts and
options on futures contracts  with respect to  financial instruments, stock  and
interest rate indexes and foreign currencies. Futures and options may be used to
facilitate  allocation  of  the  Fund's  investments  among  asset  classes,  to
 
                                       5
<PAGE>
generate income or to hedge against  declines in securities prices or  increases
in prices of securities proposed to be purchased. Emerging Markets Fund may, for
hedging  purposes only, buy  or sell put  and call options  on the securities in
which it may  invest and  enter into futures  contracts and  options on  futures
contracts  for securities or  based on financial indexes  including any index of
securities in which it may invest. Both  funds may buy or sell options,  futures
or  options on  futures that are  traded on  U.S. or foreign  exchanges or over-
the-counter.  In  addition,  both  funds   may  enter  into  currency   exchange
transactions  (including forward foreign currency exchange contracts and futures
and options contracts on foreign currencies), as a hedge against fluctuations in
foreign exchange rates.
 
    Both funds may  purchase securities  on a  when issued  or delayed  delivery
basis  and may purchase or  sell securities on a  forward commitment basis. Both
funds may invest in warrants up to 5% of their respective net assets. Both funds
may enter into repurchase agreements  subject to certain procedures designed  to
minimize  risks associated with  such agreements. Although  both funds may enter
into reverse  repurchase agreements,  neither  fund has  entered into  nor  does
Emerging  Markets  Fund  have  any  current  intention  of  entering  into  such
agreements in the  future. The Fund  may invest in  zero coupon bonds,  deferred
interest bonds and bonds on which the interest is payable in kind ("PIK Bonds").
Emerging Markets Fund may not invest in these types of investments.
 
    For  a more detailed comparison of the investment objectives and policies of
the Fund and Emerging  Markets Fund, see  "Comparison of Investment  Objectives,
Policies and Restrictions," below.
 
    INVESTMENT  MANAGEMENT AND  DISTRIBUTION PLAN FEES.   The  Fund and Emerging
Markets Fund  have  the same  Board  of Directors.  In  addition, the  Fund  and
Emerging  Markets Fund both  obtain management services  from Piper Capital. For
each fund, fees are payable monthly based on the average net asset value of  the
respective  fund  as  of  the close  of  business  each day.  Both  funds  pay a
management fee at an annual rate of 1.00% of their respective average daily  net
asset values.
 
    With respect to the Fund, Piper Capital has retained the services of Bankers
Trust  Company  ("Bankers Trust")  as sub-adviser  to  manage the  portfolio. As
compensation  for  its  services,  Piper  Capital  pays  Bankers  Trust  monthly
compensation,  calculated in the same manner  as the investment advisory fee, of
0.50% of net assets of  the Fund. With respect  to Emerging Markets Fund,  Piper
Capital  will  retain the  services of  Edinburgh Fund  Managers plc  ("EFM") as
sub-adviser to manage the portfolio. As compensation for its services, as is the
case for the Fund, Piper Capital  will pay EFM monthly compensation,  calculated
in  the same manner  as the investment advisory  fee, of 0.50%  of net assets of
Emerging Markets Fund.
 
    Both the  Fund and  Emerging Markets  Fund have  adopted distribution  plans
(each a "12b-1 Plan") pursuant to Rule 12b-1 under the 1940 Act. Pursuant to the
Fund's  12b-1  Plan,  the Distributor  is  compensated  on a  monthly  basis for
shareholder account servicing and distribution-related services. This fee is not
tied exclusively to expenses actually incurred by the Distributor and may exceed
such expenses. Payments under Emerging Markets Fund's 12b-1 Plan will be made to
the Distributor on a monthly basis  to compensate the Distributor for  servicing
of  the  Emerging Markets  Fund's shareholder  accounts  and in  connection with
distribution-related services provided with respect to the Emerging Markets Fund
12b-1 Plan. This fee  is not tied exclusively  to expenses actually incurred  by
the  Distributor and may exceed such expenses. Payments under the 12b-1 Plan may
not exceed 0.70% of average daily net assets  in the case of the Fund and  0.50%
in  the case of  Emerging Markets Fund. The  Distributor has voluntarily limited
reimbursements under the Fund's  12b-1 Plan to 0.50%.  The Distributor does  not
presently  intend  to continue  this  voluntarily limitation  beyond  the Fund's
fiscal year ending  June 30,  1996. The  Distributor has  agreed to  voluntarily
limit  reimbursements  under  Emerging Markets  Fund's  12b-1 Plan  to  0.32% of
average daily net assets  through at least Emerging  Markets Fund's fiscal  year
ending June 30, 1997.
 
    OTHER  SIGNIFICANT  FEES.   Both  the  Fund  and Emerging  Markets  Fund pay
additional fees in connection with their operations, including legal,  auditing,
transfer  agent and custodial fees. See "Fee  Table" above for the percentage of
average net assets represented by such Other Expenses.
 
    PURCHASES, REDEMPTIONS AND EXCHANGES.
 
    PURCHASES.  The Fund and Emerging Markets Fund each continuously issue their
shares to investors  at a price  equal to net  asset value at  the time of  such
issuance. Investors in Emerging Markets Fund, however,
 
                                       6
<PAGE>
also  pay a front-end sales  charge of 4.00% on  purchases of less than $100,000
scaled down to 0% on purchases of  $500,000 and above. Shareholders of the  Fund
who  acquire Emerging Market Fund Shares in  the Reorganization will not pay the
front-end sales  charge on  such  shares; however,  such  sales charge  will  be
applied to additional purchases of Emerging Markets Fund. Shares of the Fund and
Emerging   Markets   Fund  are   distributed  by   the  Distributor   and  other
broker-dealers who have entered into selected broker-dealer agreements with  the
Distributor.  Purchase orders for shares of the  Fund will not be accepted after
the date on which the Plan is approved by shareholders.
 
    REDEMPTIONS.  Shareholders of the Fund and Emerging Markets Fund may  redeem
their  shares  for cash  at  any time  at  the net  asset  value per  share next
determined; however, such redemption proceeds will  be reduced by the amount  of
any applicable contingent deferred sales charge ("CDSC"). In most circumstances,
redemptions  of Fund shares made  within two years of  purchase are subject to a
CDSC, scaled down from 2.00%  to 1.00% of the amount  redeemed. No CDSC will  be
applied  to shares of the Fund at the  time of the Reorganization or to Emerging
Markets Fund Shares acquired in the Reorganization on redemption of such shares.
With respect  to Emerging  Markets  Fund, shareholders  who invested  more  than
$500,000  and,  accordingly,  paid  no  front-end  sales  charge,  are,  in most
circumstances, subject to a  CDSC if shares are  redeemed within 24 months.  The
charge  is equal to 1.00% of the lesser of  the net asset value of the shares at
the time of purchase or at the time of redemption. Emerging Markets Fund  offers
a reinstatement privilege whereby a shareholder whose shares have been redeemed,
may,  within thirty days after the date of redemption, invest any portion or all
of the proceeds thereof in another fund  managed by Piper Capital and receive  a
pro  rata credit for any CDSC paid  in connection with such redemption. The Fund
and Emerging Markets Fund may redeem involuntarily, at net asset value, accounts
valued at less than $200.
 
    EXCHANGES.  Each of  the Fund and Emerging  Markets Fund makes available  to
its  shareholders exchange privileges allowing exchange  of shares for shares of
certain other funds. Shares of  the Fund may be exchanged  for shares of any  of
the  five  other series  of the  Company.  Emerging Markets  Fund Shares  may be
exchanged for shares of any of the 15 other funds open to new investors that are
advised by  Piper Capital.  Both  the Fund  and  Emerging Markets  Fund  provide
telephone exchange privileges to their shareholders.
 
    For  a  more detailed  discussion  of purchasing,  redeeming  and exchanging
Emerging Markets  Fund  Shares,  see "Shareholder  Guide  to  Investing--How  to
Purchase  Shares",  "--How to  Redeem  Shares" and  "--Shareholder  Services" in
Appendix A attached hereto.
 
    DIVIDENDS.   Dividends from  both  the Fund's  and Emerging  Markets  Fund's
anticipated  net  investment  income  are declared  and  paid  annually  and net
short-term capital gains and long-term capital gains distributions, if any,  are
paid  annually. Dividends and  capital gains distributions of  both the Fund and
Emerging Markets Fund are automatically  reinvested in additional shares at  net
asset value unless the shareholder elects to receive cash.
 
                             PRINCIPAL RISK FACTORS
 
    The  Fund and Emerging Markets Fund  each pursue their respective investment
objectives through investment in foreign securities. Accordingly, they are  both
subject to the same general risks associated with international investing. These
risks  include:  risks  relating  to  adverse  currency  fluctuations, potential
political and economic instability of certain countries, less information  about
issuers  due  to  different  corporate  disclosure  standards  and  governmental
regulation, limited liquidity and  greater volatility of  prices as compared  to
U.S. securities, investment and repatriation restrictions, and foreign taxation.
The  Fund invests primarily in Latin American countries, including Mexico, which
have special risks. Although the Fund has the ability to invest up to 35% of its
total assets outside  of Latin  America, the Fund  has not  invested outside  of
Latin America to date. This may cause the Fund's performance to be more volatile
than  that of a fund which is invested in a broader variety of regions. Emerging
Markets Fund will invest  in emerging markets in  countries located anywhere  in
the  world. Accordingly, Emerging Markets  Fund will be subject  to the risks of
emerging markets outside  of Latin America  whereas the Fund  is not subject  to
such  risks. It should  be noted, however, that  because Emerging Markets Fund's
portfolio will  initially  consist solely  of  the Fund's  portfolio  securities
(I.E.,  solely of Latin American issuers),  Emerging Markets Fund will initially
be subject to the risks of  a fund which is not  invested in a broad variety  of
regions. Another difference between the two funds is
 
                                       7
<PAGE>
that  although the Fund emphasizes investment  in equity securities, it may also
pursue its  investment objective  through investment  in investment  grade  debt
securities  and may invest  without limitation in  such securities. By contrast,
Emerging Markets Fund currently intends to invest in debt securities solely  for
temporary  defensive  purposes.  Accordingly, although  the  Fund  has primarily
invested in equity securities, the Fund  may be subject to the risks  associated
with investments in debt securities (E.G., credit risk, interest rate risk) to a
greater extent than Emerging Markets Fund.
 
    While  both funds  may participate  in the  futures and  options markets for
hedging purposes, and the risks of such participation are similar, the Fund  may
also  enter into such transactions for  speculative purposes to generate income.
In addition,  as discussed  above, the  Fund may  invest in  zero coupon  bonds,
deferred  interest bonds and PIK Bonds and  Emerging Markets Fund may not engage
in such transactions. According,  Emerging Markets Fund will  not be subject  to
the risks associated with these transactions.
 
    The  foregoing discussion is a summary of  the principal risk factors. For a
more  complete  discussion  of  the  risks  of  each  fund,  see  "Special  Risk
Considerations"  in  the  Fund's Prospectus  and  "Risk Factors"  in  Appendix A
attached hereto.
 
                               THE REORGANIZATION
 
Background
 
    The Company  was  managed initially  through  a joint  venture  ("Hercules")
between  Piper  Jaffray Companies,  Inc.  ("Piper Jaffray")  and  Midland Walwyn
Capital Corporation ("Midland") pursuant to which the parties agreed to  jointly
promote,  distribute and  manage a family  of international funds  in the United
States and Canada. The Company's shares were first offered to the public in  the
United States on November 9, 1993.
 
    The  Company's shares, including shares of the Fund, were originally offered
for sale with no front-end or back-end  sales charge. In lieu of a sales  charge
paid  by investors, Hercules and each sub-adviser retained by Hercules to manage
the portfolio of each series of the Company, advanced to broker-dealers a  sales
commission  (except with respect to  the Money Market Fund)  in the aggregate of
2.00% of the net asset value of  shares purchased. If a shareholder redeemed  in
less  than two years,  all or a  portion of the  advanced commission was charged
back to the broker-dealer.  If a shareholder exchanged  among the series  within
the  same two year period, the sub-advisers paid,  or were paid, as the case may
be, a portion of the commission advance  that had not yet been recovered.  While
initially  the Company, including the Fund, experienced positive growth, a trend
of net redemptions commenced in November 1994 which has yet to be reversed.
 
    In April 1995, Piper Jaffray and Midland announced their mutual agreement to
terminate  the  joint  venture  arrangement  and  to  dissolve  Hercules.  After
requisite  shareholder approval was obtained in July 1995, Piper Capital assumed
the role of manager and investment adviser for the Company.
 
    After becoming  manager  to  the  Company,  Piper  Capital  focused  on  the
structure,  pricing and  marketing of the  various Hercules funds  in the United
States in an attempt to promote asset growth in the funds and reverse the  trend
of  net redemptions. In particular, it  invested considerable time and financial
resources to develop a distribution  network with broker-dealers in addition  to
Piper Jaffray because Piper Capital believed that the development of an external
distribution  system was critical to the successful distribution of the Hercules
funds.
 
    As part of this effort, a change in the pricing structure was implemented in
June 1995  incorporating a  CDSC. Implementation  of the  CDSC was  intended  to
eliminate the need to recoup from the broker-dealer through whom the shares were
sold  the commissions advanced  to it by  Piper Capital and  the applicable sub-
adviser in the  event of  a redemption  within two  years of  purchase. In  lieu
thereof,  shareholders would be required to pay  a declining CDSC if shares were
redeemed within  two  years of  purchase.  It  was believed  that  this  pricing
structure  would  prove  attractive  to  broker-dealers  as  well  as  to future
investors. The implementation  of the CDSC  did not, however,  have the  desired
effect on growth. Rather, the trend of net redemptions continued. Latin American
Value Fund and Money Market Fund are the only Hercules funds which have had even
one  month since October 1994  where shareholder purchases exceeded redemptions.
Moreover,  sales  through  broker-dealers  other  than  Piper  Jaffray  remained
minimal.
 
                                       8
<PAGE>
    The  continuing  inability to  achieve asset  growth  in the  Hercules funds
prompted a further review by Piper Capital of the future prospects of the funds.
Ultimately, Piper Capital concluded that it is unlikely that the Hercules  funds
will,  in the foreseeable future,  grow to a sufficient  size to be economically
viable. Accordingly, Piper Capital recommended to the Board of Directors of  the
Company that the Hercules funds be eliminated as a free standing family of funds
and  that instead each Hercules fund be combined with an appropriate fund within
the Piper family of funds (or, in the  case of World Bond Fund and Money  Market
Fund, that the fund be liquidated).
 
The Board's Consideration
 
    At  meetings of the Board of Directors held on February 6, 1996 and April 8,
1996, Piper Capital reviewed for the Board the basis for its recommendation.  It
detailed  the efforts that have been made  since inception of the Hercules Funds
to promote and market the funds,  the continuing inability to reverse the  trend
of  net  redemptions  that  has continued  since  November,  1994  despite these
efforts, and the basis for its pessimistic view respecting the Company's  future
prospects.
 
    At  its  meeting  on February  6,  1996,  the Board,  including  all  of the
Independent Directors, unanimously approved the Reorganization and on March  29,
1996,  approved the  Plan and determined  to recommend that  shareholders of the
Fund approve the Plan.
 
    In determining whether to  recommend that shareholders  of the Fund  approve
the  Plan,  the  Board, with  the  advice  and assistance  of  independent legal
counsel, inquired into a number of matters. In particular, the Board  considered
the  Company's  prospects for  future growth  and  the effect  upon shareholders
should assets remain at  current levels or continue  to be reduced further.  The
Board considered in this regard that since the commencement of operations, Piper
Capital (or Hercules) has voluntarily limited total expenses of the Fund and the
Distributor  has voluntarily limited its 12b-1 fees payable by the Fund and that
they do not  presently intend to  continue these limitations  beyond the  Fund's
fiscal year ending June 30, 1996. The Board noted that absent such assumption of
expenses  and waiver of fees, the expense ratio of the Fund for the most current
fiscal year would have been considerably higher and total return lower.
 
    The  Board  carefully  considered   the  compatibility  of  the   investment
objectives,  policies,  restrictions and  portfolios  of the  Fund  and Emerging
Markets Fund. The Board noted that the two funds are similar to the extent  each
invests  in emerging markets countries. The  Board also considered the fact that
Emerging Markets Fund will have over time a broader geographic focus than  Latin
America.  The Board noted, in this regard, Piper's view that an emerging markets
fund which can  pursue, to an  unlimited extent, opportunities  anywhere in  the
world,  would  prove more  attractive to  investors  and the  Piper distribution
network than the Fund which invests  primarily in Latin America and,  therefore,
would  have a greater  likelihood of growing  to a size  to be more economically
viable than the Fund. These issues are discussed more fully below in "Comparison
of Investment Objectives, Policies  and Restrictions--Investment Objectives  and
Policies."
 
    The  Board also  considered the  fact that the  sub-adviser for  the Fund is
Bankers Trust whereas  EFM will be  the sub-adviser for  Emerging Markets  Fund.
Accordingly, the Reorganization would, from the standpoint of Fund shareholders,
result  in a change of  sub-advisers. The Board evaluated  the nature, scope and
quality of the investment  advisory services provided by  EFM relative to  those
provided  by Bankers Trust  and concluded that  the change would  be in the best
interest of shareholders of the Fund.
 
    In  addition,  the  Board  considered  the  comparative  expenses  currently
incurred in the operation of the Fund and the expenses of Emerging Markets Fund,
the  terms  and  conditions  of  the  proposed  Reorganization,  Piper Capital's
undertaking to  pay all  the  direct costs  (E.G.,  proxy solicitation)  of  the
Reorganization and the indirect costs (E.G., brokerage) likely to be incurred by
the  Fund  in  the Reorganization.  In  recommending the  Reorganization  to the
shareholders of the  Fund, the  Board considered that  the Reorganization  would
have the following benefits for shareholders of the Fund:
 
        1.    Without  giving  effect to  voluntary  waivers  and reimbursements
    currently in effect for the Fund, which Piper Capital and the Distributor do
    not presently intend to continue beyond  the Fund's fiscal year ending  June
    30,  1996,  estimated Total  Fund  Operating Expenses  for  Emerging Markets
 
                                       9
<PAGE>
    Fund are  lower than  the Total  Fund Operating  Expenses for  the Fund.  In
    addition,  if the Reorganization  is approved, the  Distributor will waive a
    portion of its fee and Piper Capital will limit expenses of Emerging Markets
    Fund so that Total  Fund Operating Expenses do  not exceed 2.00% of  average
    daily  net assets (the expense cap currently in effect for the Fund) through
    at least Emerging Markets Fund's fiscal year ending June 30, 1997.
 
        2.  Shareholders of the Fund will be able to acquire shares of  Emerging
    Markets Fund, which are otherwise subject to a maximum 4.00% front-end sales
    charge,  at net asset value  and pursue a similar  investment objective in a
    potentially more  economically  viable fund  without  having to  sell  their
    shares. Moreover, shareholders will be able to redeem the shares so acquired
    at  net asset value without any CDSC being imposed and will not pay any CDSC
    on Fund shares converted in the Reorganization.
 
        3.  The Fund's shareholders would retain the capabilities and  resources
    of  Piper Capital and its affiliates in the areas of operations, management,
    distribution, shareholder servicing and marketing.
 
        4.  Edinburgh Fund Managers plc, an experienced international investment
    manager, is the sub-adviser to Emerging Markets Fund.
 
        5.  The two funds have similar investment objectives and invest pursuant
    to similar policies  and restrictions, although  Emerging Markets Fund  will
    invest in a broader range of emerging markets countries.
 
        6.   The Reorganization would enable the Fund's shareholders to enjoy an
    expanded range of mutual fund  investment options. The Piper Funds  complex,
    of  which Emerging  Markets Fund  will be  a part,  includes 15  mutual fund
    portfolios that  will be  available for  exchange by  Fund shareholders  who
    receive Emerging Markets Fund Shares in the Reorganization.
 
        7.   The  Reorganization will  constitute a  tax-free reorganization for
    Federal income tax purposes, and no gain  or loss will be recognized by  the
    Fund  or its shareholders for Federal income tax purposes as a result of the
    Reorganization.
 
        8.  The Board of Directors of the Fund, including all of the Independent
    Directors, has determined that the Reorganization is in the best interest of
    the Fund and that the interest of existing shareholders of the Fund will not
    be diluted as a result thereof.
 
    The Board  of Directors  of  Emerging Markets  Fund,  including all  of  the
Independent  Directors, has  also determined that  the Reorganization  is in the
best interest of  Emerging Markets  Fund. The transaction  will enable  Emerging
Markets  Fund to  acquire investment  securities which  are consistent  with its
objective without  the  brokerage  costs  attendant  to  the  purchase  of  such
securities in the market.
 
The Plan
 
    The terms and conditions under which the Reorganization would be consummated
are set forth in the Plan and are summarized below. This summary is qualified in
its  entirety by reference to the Plan, a copy of which is attached as Exhibit A
to this Proxy Statement/Prospectus.
 
    The Plan  provides  that (i)  the  Fund will  transfer  all of  its  assets,
including  appropriate portfolio securities, cash, cash equivalents, securities,
commodities, futures and dividend and  interest receivable, to Emerging  Markets
Fund on the Closing Date in exchange for the assumption by Emerging Markets Fund
of  the Fund's  stated liabilities, including  all expenses,  costs, charges and
reserves, as reflected on  an unaudited statement of  assets and liabilities  of
the  Fund prepared by the  Treasurer of the Company as  of the Valuation Date in
accordance with generally  accepted accounting  principles consistently  applied
from the prior audited period, and the delivery of Emerging Markets Fund Shares;
(ii)  such Emerging Markets Fund Shares  will be distributed to the shareholders
of the Fund on the Closing Date or as soon as practicable thereafter; and  (iii)
the Company shall be dissolved as a Minnesota corporation and deregistered as an
investment  company under  the 1940  Act, promptly  following the  making of all
distributions and the reorganization or liquidation of each other series of  the
Company.  In most  cases, reorganization or  liquidation of the  other series is
contingent on obtaining the approval of shareholders of the series.
 
                                       10
<PAGE>
    For technical reasons, certain of the Fund's existing investment limitations
may  be deemed to preclude the Fund  from consummating the Reorganization to the
extent that the Reorganization would involve the Fund holding all of its  assets
as  shares of  Emerging Markets  Fund until such  shares are  distributed to the
Fund's shareholders.  By approving  the Plan,  the Fund's  shareholders will  be
deemed to have agreed to waive each of these limitations. It is anticipated that
the distribution of Emerging Markets Fund Shares to the Fund's shareholders will
occur on the Closing Date or as soon as practicable thereafter.
 
    The  number of Emerging Markets Fund Shares to be delivered to the Fund will
have an aggregate net asset value equal to the value of the Fund assets acquired
by Emerging Markets Fund (net of stated liabilities assumed by Emerging  Markets
Fund);  these values will be  calculated as of the close  of business of the New
York Stock Exchange  on a business  day not  later than the  fifth business  day
following  the receipt of the requisite approval of the Plan by the shareholders
of the Fund  or at such  other time as  the Fund and  Emerging Markets Fund  may
agree  (the  "Valuation  Date").  These  Emerging  Market  Fund  Shares  will be
distributed  to  the  former  Fund  shareholders,  with  each  such  shareholder
receiving  Emerging Market Fund Shares with a  value equal to the value of their
holdings in the Fund.
 
    Emerging Markets Fund will cause its transfer agent to credit and confirm an
appropriate number of  Emerging Markets  Fund Shares to  each Fund  shareholder.
Neither the Fund nor Emerging Markets Fund issues stock certificates.
 
    The  Closing Date will be the next business day following the Valuation Date
or at such  other time  as the  Fund and Emerging  Markets Fund  may agree.  The
consummation  of  the  Reorganization is  contingent  upon the  approval  of the
Reorganization by the  shareholders of  the Fund and  the receipt  of the  other
opinions  and certificates set forth in Sections 6,  7 and 8 of the Plan and the
occurrence of the events  described in those Sections,  certain of which may  be
waived  by the  Fund or Emerging  Markets Fund. The  Plan may be  amended in any
mutually agreeable manner, except  that no amendment may  be made subsequent  to
the Meeting which would detrimentally affect the value of the shares of Emerging
Markets  Fund  to  be distributed.  Piper  Capital  will bear  all  direct costs
associated with the Reorganization  including preparation, printing, filing  and
proxy  solicitation  expenses incurred  in  connection with  obtaining requisite
shareholder approval of the Reorganization.
 
    The Plan may  be terminated and  the Reorganization abandoned  at any  time,
before  or after approval by  the Fund's shareholders, by  mutual consent of the
Fund and Emerging Markets Fund. In addition, either party may terminate the Plan
upon the occurrence of a material breach of  the Plan by the other party or  if,
by  September  15,  1996, any  condition  set forth  in  the Plan  has  not been
fulfilled or waived by the party entitled to its benefits.
 
    The effect of the Reorganization is  that shareholders of the Fund who  vote
their  shares in favor of the Plan are electing to sell their shares of the Fund
(at net asset value on the Valuation Date) and reinvest the proceeds in Emerging
Markets Fund at net asset value and without recognition of taxable gain or  loss
for  Federal income  tax purposes.  Prior to the  Valuation Date,  the Fund will
declare and  pay a  dividend to  distribute all  of its  accumulated  investment
company  taxable  income and  net capital  gain,  if any.  The proceeds  of such
distribution may  be taxable  to  Fund shareholders.  See  "Tax Aspects  of  the
Reorganization"  below. All contracts entered  into by or on  behalf of the Fund
will terminate upon consummation of the Reorganization.
 
    Shareholders of the Fund will continue to be able to redeem their shares  at
net  asset value (subject to any  applicable CDSC) next determined after receipt
of the redemption request until the close  of business on the business day  next
preceding  the Closing Date. Redemption requests received by the Fund thereafter
will be treated as requests for redemption of shares of Emerging Markets Fund.
 
Tax Aspects of the Reorganization
 
    At least one but not more than 20 business days prior to the Valuation Date,
the Fund will declare and pay a  dividend or dividends which, together with  all
previous  such dividends,  will have  the effect  of distributing  to the Fund's
shareholders all of the Fund's investment company taxable income for all periods
 
                                       11
<PAGE>
since inception of the Fund through  and including the Valuation Date  (computed
without  regard to  any dividends  paid deduction),  and all  of the  Fund's net
capital gain, if any, realized in such periods (after reduction for any  capital
loss carry-forward).
 
    The Reorganization is intended to qualify for Federal income tax purposes as
a  tax-free reorganization under Section 368(a)(1)  of the Internal Revenue Code
of 1986, as amended (the "Code"). The Company and Piper Global have  represented
that,  to  their  best  knowledge,  there  is  no  plan  or  intention  by  Fund
shareholders to  redeem, sell,  exchange or  otherwise dispose  of a  number  of
Emerging  Markets Fund Shares received in  the transaction that would reduce the
Fund shareholders' ownership  of Emerging  Markets Fund  Shares to  a number  of
shares  having a value, as of the Closing Date, of less than 50% of the value of
all of the formerly outstanding Fund shares as of the same date. The Company and
Piper Global have  each further represented  that, as of  the Closing Date,  the
Fund  and Emerging Markets Fund will  qualify as regulated investment companies.
In addition, Piper  Global has  further represented that  Emerging Markets  Fund
will qualify as a regulated investment company for its current fiscal year.
 
    As  a condition  to the Reorganization,  the Fund and  Emerging Markets Fund
will receive an opinion of the law firm Gordon Altman Butowsky Weitzen Shalov  &
Wein  that,  based on  certain assumptions,  facts,  the terms  of the  Plan and
additional representations set forth in the Plan or provided by the Company  and
Piper Global:
 
        1.   The transfer of substantially all  of the Fund's assets in exchange
    for Emerging Markets Fund Shares and the assumption by Emerging Markets Fund
    of certain stated liabilities  of the Fund followed  by the distribution  by
    the  Fund  of  Emerging Markets  Fund  Shares  to the  Fund  Shareholders in
    exchange for their Fund shares will constitute a "reorganization" within the
    meaning of Section 368(a)(1) of the Code, and the Fund and Emerging  Markets
    Fund  will  each be  a "party  to  a reorganization"  within the  meaning of
    Section 368(b) of the Code;
 
        2.  No gain or loss will be recognized by Emerging Markets Fund upon the
    receipt of the assets  of the Fund solely  in exchange for Emerging  Markets
    Fund  Shares  and the  assumption  by Emerging  Markets  Fund of  the stated
    liabilities of the Fund;
 
        3.  No gain or loss will be recognized by the Fund upon the transfer  of
    the  assets of the  Fund to Emerging  Markets Fund in  exchange for Emerging
    Markets Fund  Shares and  the assumption  by Emerging  Markets Fund  of  the
    stated  liabilities or upon the distribution of Emerging Markets Fund Shares
    to the Fund's shareholders in exchange for their Fund shares;
 
        4.  No gain or loss will be recognized by the Fund shareholders upon the
    exchange of the shares of the Fund for Emerging Markets Fund Shares;
 
        5.  The aggregate tax basis for Emerging Markets Fund Shares received by
    each of the Fund's shareholders pursuant  to the reorganization will be  the
    same  as the aggregate tax basis of the shares in the Fund held by each such
    shareholder of the Fund immediately prior to the Reorganization;
 
        6.  The holding period of Emerging Markets Fund Shares to be received by
    each shareholder of the Fund will include the period during which the shares
    in the Fund surrendered in exchange therefor were held (provided such shares
    in the Fund were held as capital assets on the date of the Reorganization);
 
        7.  The tax basis of the assets of the Fund acquired by Emerging Markets
    Fund will  be  the  same as  the  tax  basis  of such  assets  to  the  Fund
    immediately prior to the Reorganization; and
 
        8.    The holding  period of  the assets  of  the Fund  in the  hands of
    Emerging Markets Fund will include the period during which those assets were
    held by the Fund.
 
    The Reorganization will be treated as a "change in ownership" under  Section
382 of the Code. It is not anticipated that any resulting limitations on the use
of  any capital loss carryovers  of the Fund will  be material. In addition, the
economic benefit of any capital loss  carryovers of the Fund would be  available
to  shareholders of  the combined  entity with  a resulting  benefit to Emerging
Markets Fund shareholders. It is not  anticipated that any such benefit will  be
material.
 
                                       12
<PAGE>
    Shareholders  of the  Fund should consult  their tax  advisers regarding the
effect, if  any,  of the  proposed  transaction  in light  of  their  individual
circumstances.  Because  the foregoing  discussion only  relates to  the Federal
income tax consequences of  the proposed transaction,  shareholders of the  Fund
should  also consult their tax advisors as  to state and local tax consequences,
if any, of the proposed transaction.
 
Dissenters' Rights
 
    Pursuant to  Sections  302A.471  and  302A.473  of  the  Minnesota  Business
Corporation  Act (the "MBCA Sections"), record  holders of shares of the Company
are entitled to assert dissenters' rights in connection with the  Reorganization
and  obtain payment  of the  "fair value"  of their  shares, provided  that such
shareholders comply with the requirements of the MBCA Sections.  Notwithstanding
the  provisions of the  MBCA Sections, the Division  of Investment Management of
the Commission  has  taken  the  position  that  adherence  to  state  appraisal
procedures  by  a registered  investment  company issuing  redeemable securities
would constitute  a  violation of  Rule  22c-1 under  the  1940 Act.  This  rule
provides that no open-end investment company may redeem its shares other than at
net  asset value next  computed after receipt  of a tender  of such security for
redemption. It is the  view of the Division  of Investment Management that  Rule
22c-1 preempts appraisal provisions in state statutes.
 
    In  the interests of ensuring equal valuation  of all interests in the Fund,
the Company will determine dissenters' rights in accordance with the  Division's
interpretation.  It should be  emphasized that Fund  shareholders may sell their
shares at net asset value (subject to any applicable CDSC) at any time prior  to
the Closing Date.
 
Description of Shares
 
    Shares of Emerging Markets Fund to be issued pursuant to the Plan will, when
issued,   be  fully  paid  and  non-assessable  by  Emerging  Markets  Fund  and
transferable without  restrictions and  will have  no preemptive  or  conversion
rights.
 
Capitalization Table (unaudited)
 
    The  following table sets forth  the capitalization of the  Fund as of March
31, 1996.
 
<TABLE>
<CAPTION>
                                     Shares
                      Net Assets   Outstanding   Net Asset
                         (000s        (000s      Value Per
                       omitted)     omitted)       Share
                      -----------  -----------   ---------
                      <S>          <C>           <C>
                        $16,336       2,057       $ 7.94
</TABLE>
 
    Emerging  Markets   Fund  has   not  yet   commenced  operations.   If   the
Reorganization  is  approved, upon  closing, the  net  assets, number  of shares
outstanding and net asset value per share of Emerging Markets Fund will be  that
of the Fund.
 
         COMPARISON OF INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS
 
Investment Objectives and Policies
 
    The  Fund and Emerging Markets Fund  have similar investment objectives. The
Fund's objectives are long-term  capital appreciation and,  to a lesser  extent,
current  income. The investment objective of  Emerging Markets Fund is long-term
capital appreciation.  Current  income  is incidental  to  this  objective.  The
investment objectives of the Fund and Emerging Markets Fund are fundamental and,
accordingly, may not be changed without shareholder approval.
 
    The  Fund seeks  to achieve  its investment  objectives by  investing, under
normal circumstances, at least 65% of  its total assets in securities issued  by
issuers in Latin America. Under normal market conditions, the Fund's investments
will  be allocated  among at  least three  different countries  in Latin America
(defined as Mexico, Central America and South America). Although it is permitted
to invest up to 35% of its total assets anywhere in the world, the Fund has  not
invested  outside of Latin America to date.  Emphasis is placed on investment in
equity securities;  however, the  Fund may  invest without  limit in  investment
grade debt securities (including notes, debentures, Brady Bonds, mortgage-backed
securities  and asset-backed  securities) of Latin  American countries. Emerging
Markets   Fund    seeks    to    achieve    its    investment    objective    by
 
                                       13
<PAGE>
investing,  under  normal circumstances,  at least  65% of  its total  assets in
Common Stock  of issuers  in the  world's emerging  securities markets.  "Common
Stock"  means common stock and foreign equity securities which are substantially
similar to common  stock in the  U.S. and  does not include  preferred stock  or
convertible debt securities. Emerging securities markets can be found in regions
such  as Latin America,  Asia, Eastern Europe, the  Middle East, Southern Europe
and Africa.  Emerging  Markets  Fund  invests  in  debt  securities  solely  for
temporary  defensive  purposes.  As discussed  above,  the  principal difference
between the  two funds  is that  the Fund  invests primarily  in Latin  America,
whereas  Emerging Markets  Fund invests  in emerging  markets countries  with no
emphasis on Latin  America. In addition,  the Fund may  invest without limit  in
investment  grade debt securities, whereas Emerging Markets Fund invests in debt
securities solely for temporary defensive purposes.
 
    The initial portfolio of Emerging Markets Fund will be comprised exclusively
of the portfolio securities of the Fund acquired by Emerging Markets Fund in the
Reorganization. Accordingly, Emerging  Markets Fund will  be initially  invested
entirely  in Latin America. It is anticipated  that over time, as new investment
opportunities arise, the portfolio will be invested among a variety of regions.
 
    Both the Fund  and Emerging Markets  Fund may  invest part or  all of  their
respective  assets  in  U.S.  dollar- or  foreign  currency-denominated  cash or
domestic  or  foreign  high-quality  money  market  instruments  to  maintain  a
temporary  defensive posture, when, in the opinion of the investment adviser, it
is advisable to do so because of market conditions.
 
    The Fund  and  Emerging  Markets  Fund may  invest  in  American  Depository
Receipts ("ADRs"), European Depository Receipts ("EDRs") and in other investment
companies  (up to  the limits  prescribed by  the 1940  Act). The  Fund may also
invest up to 10% of its total assets in foreign index linked instruments and  in
loan  participations and assignments;  Emerging Markets Fund  does not invest in
these types of securities.
 
    The Fund may purchase and sell  put and call options, futures contracts  and
options  on futures contracts  with respect to  financial instruments, stock and
interest rate indexes and foreign currencies. Futures and options may be used to
facilitate allocation of the Fund's investment among asset classes, to  generate
income  or to hedge against declines in securities prices or increases in prices
of securities proposed to be purchased.  Emerging Markets Fund may, for  hedging
purposes  only, buy or sell  put and call options on  the securities in which it
may invest and enter into futures contracts and options on futures contracts  on
securities  or based on  financial indexes including any  index of securities in
which it may invest. Both funds may buy or sell options, futures and options  on
futures  that are  traded on U.S.  or foreign exchanges  or over-the-counter. In
addition, both funds  may enter into  currency exchange transactions  (including
forward foreign currency exchange contracts and futures and options contracts on
foreign currencies), as a hedge against fluctuations in foreign exchange rates.
 
    Both  the  Fund  and Emerging  Markets  Fund  may purchase  securities  on a
when-issued or delayed delivery basis and  may purchase or sell securities on  a
forward  commitment basis. Both funds  may invest in warrants  up to 5% of their
respective net assets. Included within this amount, but not to exceed 2% of  the
value  of its net assets, may be warrants that are not listed on the New York or
American Stock Exchange.  Warrants are,  in effect, options  to purchase  equity
securities  at a specific price, during a specific period, and have no voting or
other rights with respect to the corporation issuing them and pay no  dividends.
Both  funds may enter  into repurchase agreements  subject to certain procedures
designed to minimize risks associated with such agreements. Although both  funds
may  enter  into  reverse  repurchase agreements,  neither  fund  has,  nor does
Emerging  Markets  Fund  have  any  current  intention  of  entering  into  such
agreements  in the future.  The Fund may  invest in zero  coupon bonds, deferred
interest bonds and  PIK Bonds; Emerging  Markets Fund does  not invest in  these
types of instruments.
 
    The  investment  policies of  both the  Fund and  Emerging Markets  Fund are
non-fundamental and  may be  changed  by their  respective Boards  of  Directors
unless  otherwise noted  herein. The  foregoing discussion  is a  summary of the
investment policies of the funds. For  a more complete discussion of the  Fund's
policies  see  "Investment  Objectives  and  Policies"  in  its  Prospectus  and
"Investment Objectives  and  Policies" in  the  Fund's Statement  of  Additional
Information.  For  a  more  complete  discussion  of  the  policies  of Emerging
 
                                       14
<PAGE>
Markets Fund see "Investment Objective, Policies and Restrictions" in Appendix A
hereto and "Investment Objectives and Policies"  in Appendix A to the  Statement
of Additional Information relating to this Proxy Statement/Prospectus.
 
Investment Restrictions
 
    The investment restrictions adopted by the Fund and Emerging Markets Fund as
fundamental  policies appear under the  caption "Investment Restrictions" in the
Prospectus and  Statement of  Additional Information  of the  Fund and  "Special
Investment Methods--Investment Restrictions" and "Investment Objective, Policies
and  Restrictions" in  Appendix A  hereto. A  fundamental investment restriction
cannot be  changed without  the vote  of a  majority of  the outstanding  voting
securities  of a fund, as defined in  the 1940 Act. The material differences are
as follows: While both funds are prohibited from making short sales, the Fund is
subject to  such  limitation  on  a  non-fundamental  basis.  As  a  fundamental
restriction,  both  the Fund  and Emerging  Markets Fund  may not  purchase real
estate or  interests  therein other  than  securities backed  by  mortgages  and
similar investments, however, the Fund may purchase readily marketable interests
in  real estate investment trusts or  readily marketable securities of companies
that invest in real estate. In addition, the Fund has a fundamental  restriction
prohibiting  the purchase of  real estate limited  partnership interests whereas
Emerging Markets Fund  is subject to  the same limitation  on a  non-fundamental
basis.  Additionally, the  Fund has  a fundamental  restriction prohibiting more
than 15% of its  net assets from being  invested in illiquid securities  whereas
Emerging  Markets Fund  is subject to  the same limitation  on a non-fundamental
basis.
 
Interests of Certain Persons
 
    The following persons  affiliated with  the Fund and  Emerging Markets  Fund
receive  payments from the Fund and  Emerging Markets Fund for services rendered
pursuant to contractual arrangements with both funds: (i) Piper Capital, as  the
investment  adviser and manager to  each fund, and (ii)  the Distributor, as the
distributor of  shares of  each  fund. In  addition,  with respect  to  Emerging
Markets  Fund only, Piper Trust  Company, an affiliate of  Piper Capital and the
Distributor, and the Distributor provide transfer agent and dividend  disbursing
agent  services for  401(k) Plan  accounts and  all other  shareholder accounts,
respectively.
 
                     ADDITIONAL INFORMATION ABOUT THE FUND
                           AND EMERGING MARKETS FUND
 
General
 
    For a  discussion  of  the  organization and  operation  of  the  Fund,  see
"Management,"  "Investment Objectives  and Policies,"  "Investment Restrictions"
and  "General  Information"  in  its   prospectus.  For  a  discussion  of   the
organization  and  operation  of  Emerging  Markets  Fund,  see  "Introduction,"
"Management,""Investment Objective and  Policies" and  "General Information"  in
Appendix A hereto.
 
Financial Information
 
    For certain financial information about the Fund, see "Financial Highlights"
and  "Performance Comparisons" in its prospectus.  Emerging Markets Fund has not
yet commenced operations and, accordingly, does not yet have assets.
 
Management
 
    For information about the Fund's Board of Directors, investment manager  and
distributor,   see  "Management"  and  "Distribution  of  Fund  Shares"  in  its
prospectus. For  corresponding  information  about Emerging  Markets  Fund,  see
"Management" and "Distribution of Fund Shares" in Appendix A hereto.
 
Description of Securities and Shareholder Inquiries
 
    For a description of the nature and most significant attributes of shares of
the   Fund  and  information  regarding   shareholder  inquiries,  see  "General
Information" and "Introduction--Shareholder Inquiries"  in its prospectus.  With
respect  to Emerging  Markets Fund,  this information  may be  found in "General
Information" and "Introduction -- Shareholder Inquiries" in Appendix A hereto.
 
                                       15
<PAGE>
Dividends, Distributions and Taxes
 
    For  a  discussion  of  the  Fund's  policies  with  respect  to  dividends,
distributions  and taxes, see  "Dividends, Distributions and  Tax Status" in its
prospectus. For a discussion of Emerging Markets Fund's policies with respect to
dividends, distributions, and taxes, see "Dividends and Distributions" and  "Tax
Status" in Appendix A hereto.
 
Purchases and Redemptions
 
    For a discussion of how the Fund's shares may be purchased and redeemed, see
"Purchase  of  Shares"  and "Redemption  of  Shares"  in its  prospectus.  For a
discussion of how Emerging Markets Fund's shares may be purchased and  redeemed,
see "Shareholder Guide to Investing" in Appendix A hereto.
 
Pending Legal Proceedings
 
    For  a discussion of  pending legal proceedings  see "Pending Litigation" in
the Fund's  prospectus and,  with  respect to  Emerging Markets  Fund,  "General
Information--Pending Legal Proceedings" in Appendix A hereto.
 
                  MANAGEMENT'S DISCUSSION OF FUND PERFORMANCE
 
    For  management's discussion  of the  Fund's performance,  see the Company's
Annual Report for  its fiscal year  ended June 30,  1995, which is  incorporated
herein by reference. The Company's Annual Report is available without charge, as
noted  under "Available  Information" below. Emerging  Markets Fund  has not yet
commenced operations.
 
                        FINANCIAL STATEMENTS AND EXPERTS
 
    The annual financial statements of the Fund incorporated by reference in the
Statement of Additional  Information relating to  the Registration Statement  on
Form  N-14  of which  this  Proxy Statement/Prospectus  forms  a part  have been
audited by  KPMG Peat  Marwick  LLP, independent  accountants, for  the  periods
indicated   in  its  report   thereon.  Such  financial   statements  have  been
incorporated by reference in reliance upon such report given upon the  authority
of KPMG Peat Marwick LLP as experts in accounting and auditing. Emerging Markets
Fund has not yet commenced operations.
 
                                 LEGAL MATTERS
 
    Certain  legal matters concerning the issuance of shares of Emerging Markets
Fund will be passed upon by Dorsey & Whitney LLP, Minneapolis, Minnesota.
 
                             AVAILABLE INFORMATION
 
    Additional  information  about  the  Fund  and  Emerging  Markets  Fund   is
available,  as applicable, in  the following documents which  are either part of
this Proxy Statement/Prospectus  or are  incorporated herein  by reference:  (i)
Appendix  A hereto which  forms a part of  this Proxy Statement/Prospectus; (ii)
Appendix A to  the Statement of  Additional Information relating  to this  Proxy
Statement/Prospectus;  (iii)  the Company's  Prospectus  dated August  29, 1995,
which Prospectus forms a part of Post-Effective Amendment No. 6 to the Company's
Registration Statement on  Form N-1A  (File Nos. 33-67016;  811-7936); (iv)  the
Company's  Statement of Additional Information dated August 29, 1995 and (v) the
Company's Annual Report for the  fiscal year ended June  30, 1995; and (vi)  the
Company's  Semi-Annual Report  for the six  months ended December  31, 1995. The
foregoing documents may be obtained without charge upon request from Shareholder
Services, Piper Jaffray  Tower, 222 South  Ninth Street, Minneapolis,  Minnesota
55402-7778.
 
    The  Company and Piper Global are  subject to the informational requirements
of the Securities Exchange Act of 1934, as amended, and in accordance therewith,
file reports and other information with the Commission. Proxy material,  reports
and other information about the Fund and Piper Global which are of public record
can  be inspected  and copied at  public reference facilities  maintained by the
Commission at Room 1204,  Judiciary Plaza, 450  Fifth Street, N.W.,  Washington,
D.C. 20549 and certain of its regional
 
                                       16
<PAGE>
offices,  and copies of such materials can  be obtained at prescribed rates from
the  Public  Reference  Branch,  Office  of  Consumer  Affairs  and  Information
Services, Securities and Exchange Commission, Washington, D.C. 20549.
 
                                 OTHER BUSINESS
 
    Management  of  the Company  knows  of no  business  other than  the matters
specified above which will be presented at the Meeting. Since matters not  known
at  the  time of  the solicitation  may come  before the  Meeting, the  proxy as
solicited confers  discretionary  authority  with respect  to  such  matters  as
properly  come  before the  Meeting, including  any adjournment  or adjournments
thereof, and it is  the intention of the  persons named as attorneys-in-fact  in
the proxy to vote this proxy in accordance with their judgment on such matters.
 
                                          By Order of the Board of Directors,
 
                                          SUSAN SHARP MILEY
                                          SECRETARY
 
May 17, 1996
 
                                       17
<PAGE>
                                                                       EXHIBIT A
 
                      AGREEMENT AND PLAN OF REORGANIZATION
 
Hercules Latin American Value Fund and Emerging Markets Growth Fund
 
    THIS  AGREEMENT AND PLAN OF REORGANIZATION  ("Agreement") is made as of this
15th day  of  April,  1996,  by  and  between  Hercules  Funds  Inc.  ("Hercules
Company"), on behalf of its series Hercules Latin American Value Fund ("Hercules
Fund"),  and Piper Global Funds Inc. ("Piper  Company"), on behalf of its series
Emerging Markets Growth Fund ("Piper Fund"). Hercules Company and Piper  Company
are  Minnesota corporations. As  used in this Agreement,  the terms "Piper Fund"
and "Hercules Fund" shall be construed to mean, respectively, 'Piper Company  on
behalf  of Piper Fund' and 'Hercules Company  on behalf of Hercules Fund', where
necessary to reflect the  fact that a corporate  series is generally  considered
the  beneficiary of corporate level actions taken with respect to the series and
is not itself recognized as a person under law.
 
    This  Agreement  is  intended   to  be  and  is   adopted  as  a  "plan   of
reorganization"   within  the   meaning  of   Treas.  Reg.   1.368-2(g),  for  a
reorganization under Section 368(a) (1) of the Internal Revenue Code of 1986, as
amended (the "Code"). The reorganization ("Reorganization") will consist of  the
transfer  to Piper Fund of  substantially all of the  assets of Hercules Fund in
exchange for the assumption by Piper Fund of all stated liabilities of  Hercules
Fund  and the issuance by Piper Fund of  shares of common stock, par value $0.01
per share  ("Piper Fund  Shares"), to  be distributed,  after the  Closing  Date
hereinafter  determined, to the shareholders of  Hercules Fund in liquidation of
Hercules Fund as provided herein, all upon the terms and conditions  hereinafter
set  forth in this Agreement. The distribution  of Piper Fund Shares to Hercules
Fund shareholders and the  retirement and cancellation  of Hercules Fund  shares
will  be effected pursuant to  an amendment to the  Articles of Incorporation of
Hercules Company in the form attached hereto as Exhibit 1 (the "Amendment"),  to
be  adopted  by  Hercules  Company in  accordance  with  the  Minnesota Business
Corporation Act.
 
    In consideration  of  the  premises  and of  the  covenants  and  agreements
hereinafter set forth, the parties hereto covenant and agree as follows:
 
1.  THE REORGANIZATION AND LIQUIDATION OF HERCULES FUND
 
     1.1    Subject to  the terms  and conditions  set forth  herein and  in the
Amendment and  on the  basis  of the  representations and  warranties  contained
herein,  Hercules Fund  agrees to  assign, deliver  and other-wise  transfer the
Hercules Fund Assets (as  defined in paragraph 1.2(a))  to Piper Fund and  Piper
Fund  agrees in exchange  therefor to assume all  stated liabilities of Hercules
Fund on the Closing Date (as defined in paragraph 3.1) as set forth in paragraph
1.3 and to deliver to Hercules  Fund Shareholders (as defined in paragraph  1.5)
the  number  of  Piper  Fund Shares,  including  fractional  Piper  Fund Shares,
determined in accordance with paragraph 2.2. Such transactions shall take  place
at the closing provided for in paragraph 3.1 ("Closing").
 
      1.2(a)  The   "Hercules  Fund  Assets"  shall   consist  of  all  property
              including,  without  limitation,   all  cash,  cash   equivalents,
              securities,   commodities,  futures,  and  dividend  and  interest
              receivables owned by  Hercules Fund, and  any deferred or  prepaid
              expenses  shown  as  an asset  on  Hercules Fund's  books,  on the
              Valuation Date (as defined in paragraph 2.1).
 
         (b)  Hercules Fund reserves the right to sell any of the securities  in
              its  portfolio  but will  not, from  the date  on which  the Proxy
              Materials (as defined  in paragraph  4.3) are  mailed to  Hercules
              Fund  shareholders, acquire  without the  prior approval  of Piper
              Fund, any additional  securities or other  instruments other  than
              securities  or  instruments of  the type  in  which Piper  Fund is
              permitted to invest and in amounts agreed to by Piper Fund. In the
              event that Hercules Fund holds any  assets that Piper Fund is  not
              permitted to hold, Hercules Fund will dispose of such assets on or
              prior to the Valuation Date. In addition, if it is determined that
              the  portfolios of Hercules Fund  and Piper Fund, when aggregated,
              would contain investments exceeding certain percentage limitations
              imposed  upon  Piper  Fund   with  respect  to  such   investments
              (including, among others, percentage limitations
 
                                      A-1
<PAGE>
              necessary  to  satisfy  the  diversification  requirements  of the
              Code), Hercules Fund if requested by Piper Fund will, on or  prior
              to  the Valuation  Date, dispose  of and/or  reinvest a sufficient
              amount of such investments as may be necessary to avoid  violating
              such limitations as of the Closing Date.
 
      1.3   Hercules Fund will endeavor to  discharge all of its liabilities and
obligations on or prior to the Valuation Date. Piper Fund will assume all stated
liabilities, which include, without limitation, all expenses, costs, charges and
reserves reflected  on  an unaudited  Statement  of Assets  and  Liabilities  of
Hercules  Fund prepared by  the Treasurer of  Hercules Fund as  of the Valuation
Date in accordance with  gen-erally accepted accounting principles  consistently
applied from the prior audited period ("Valuation Date Statement").
 
      1.4   In order for  Hercules Fund to comply  with Section 852(a)(1) of the
Code and to avoid  having any investment company  taxable income or net  capital
gain  (as defined in Sections 852(b)(2)  and 1222(11) of the Code, respectively)
in the taxable year ending with its dissolution, Hercules Fund will on or before
the Valuation Date (a) declare a dividend  in an amount large enough so that  it
will have declared dividends of all of its investment company taxable income and
net  capital gain, if any,  for such taxable year  (determined without regard to
any deduction for dividends paid) and (b) distribute such dividend.
 
      1.5  On the Closing Date or as soon as practicable thereafter, pursuant to
paragraph 1.1 hereof and the Amendment, Hercules Fund will distribute Piper Fund
Shares received  by  Hercules  Fund  pro rata  to  its  shareholders  of  record
determined  as of the  close of business  on the Valuation  Date ("Hercules Fund
Shareholders"). Thereafter, no additional  shares representing interests in  the
Hercules  Fund shall  be issued.  Such distribution  will be  accomplished by an
instruction, signed by Hercules Fund's Secretary, to transfer Piper Fund  Shares
then  credited to  Hercules Fund's account  on the  books of Piper  Fund to open
accounts on  the  books  of  Piper  Fund in  the  names  of  the  Hercules  Fund
Shareholders  and  representing the  respective pro  rata  number of  Piper Fund
Shares due  each such  Hercules  Fund Shareholder.  All issued  and  outstanding
shares  of  Hercules Fund  simultaneously will  be  canceled on  Hercules Fund's
books. No  Hercules Fund  Shareholder will  be charged  any contingent  deferred
sales  charge described in Hercules Fund's current or then-current prospectus as
a result of  the conversion  of Hercules Fund  holdings into  Piper Fund  Shares
described in this paragraph.
 
      1.6   Ownership of Piper  Fund Shares will be shown  on the books of Piper
Fund's transfer agent. Piper Fund Shares will be issued in the manner  described
in Piper Fund's then current Prospectus and Statement of Additional Information,
except no front-end sales charges will be incurred by Hercules Fund Shareholders
in connection with Piper Fund Shares received in the Reorganization.
 
      1.7   Any transfer taxes  payable upon issuance of  Piper Fund Shares in a
name other than the registered holder of Hercules Fund Shares on Hercules Fund's
books as of the close of business on the Valuation Date shall, as a condition of
such issuance and transfer, be paid by the person to whom Piper Fund Shares  are
to be issued and transferred.
 
      1.8  Any reporting responsibility of Hercules Fund is and shall remain the
responsibility  of Hercules Fund up to and  including the date on which Hercules
Fund is dissolved and deregistered pursuant to paragraph 1.9.
 
      1.9  Hercules Company  shall be dissolved as  a Minnesota corporation  and
deregistered as an invest-ment company under the Investment Company Act of 1940,
as  amended ("1940  Act"), promptly  following the  making of  all distributions
pursuant to paragraph 1.5 and the  reorganization or liquidation of each of  its
series, such that no shares of Hercules Company remain issued and outstanding.
 
      1.10   All books and records maintained on behalf of Hercules Fund will be
delivered to Piper Fund and, after the Closing, will be maintained by Piper Fund
or its  designee in  compliance with  applicable record  retention  requirements
under the 1940 Act.
 
2.  VALUATION
 
      2.1   The  "Valuation Date" shall  be no  later than the  5th business day
following  the  receipt  of  the   requisite  approval  of  this  Agreement   by
shareholders    of   Hercules   Fund    or   such   other    date   after   such
 
                                      A-2
<PAGE>
shareholder approval as may be mutually  agreed upon. The value of the  Hercules
Fund  Assets shall be the value of such assets computed as of 4:00 p.m., Eastern
time, on the Valuation Date, using the valuation pro-cedures set forth in  Piper
Fund's then current Prospectus and Statement of Additional Information.
 
      2.2   The net  asset value of  a Piper Fund  Share shall be  the net asset
value per share computed on the  Valuation Date, using the valuation  procedures
set  forth in Piper  Fund's then current Prospectus  and Statement of Additional
Information.
 
      2.3  The number of Piper Fund Shares (including fractional shares, if any)
to be  issued  here-under shall  be  determined by  dividing  the value  of  the
Hercules  Fund Assets, net of the liabilities  of Hercules Fund assumed by Piper
Fund pursuant to paragraph 1.1, determined in accordance with paragraph 2.1,  by
the  net  asset  value of  a  Piper  Fund Share  determined  in  accordance with
paragraph 2.2.
 
      2.4  All computations of value  shall be made by Piper Capital  Management
Incorporated  ("PCM") in accordance  with its regular  practice in pricing Piper
Fund. Piper Fund shall cause  PCM to deliver a copy  of its valuation report  at
the Closing.
 
3.  CLOSING AND CLOSING DATE
 
      3.1   The Closing shall take place on  the Valuation Date as of 5:00 p.m.,
Eastern time,  or at  such other  day  or time  as the  parties may  agree  (the
"Closing  Date"). The Closing shall be held  in a location mutually agreeable to
the parties hereto. All acts taking place at the Closing shall be deemed to take
place simultaneously as of 5:00 p.m.,  Eastern time, on the Closing Date  unless
otherwise provided.
 
      3.2  Portfolio securities held by Hercules Fund (together with any cash or
other  assets) shall be delivered by  Hercules Fund to Investors Fiduciary Trust
Company (the "Custodian"), as custodian for Piper Fund, for the account of Piper
Fund on  or  before the  Closing  Date  in conformity  with  applicable  custody
provisions  under the 1940 Act and duly  endorsed in proper form for transfer in
such condition as  to constitute good  delivery thereof in  accordance with  the
custom  of  brokers.  The  portfolio  securities  shall  be  accompanied  by all
necessary federal and state stock transfer stamps or a check for the appropriate
purchase price of  such stamps. Portfolio  securities and instruments  deposited
with a securities depository (as defined in Rule 17f-4 under the 1940 Act) shall
be  delivered on  or before  the Closing Date  by book-entry  in accordance with
customary practices of  such depository  and the Custodian.  The cash  delivered
shall be in the form of a Federal Funds wire, payable to the order of "Investors
Fiduciary Trust Company, Custodian for Piper Growth and Income Fund, a series of
Piper Funds, Inc."
 
      3.3   In  the event  that on the  Valuation Date,  (a) the  New York Stock
Exchange shall be closed  to trading or trading  thereon shall be restricted  or
(b)  trading or the reporting of trading  on such Exchange or elsewhere shall be
disrupted so  that,  in the  judgment  of both  Piper  Fund and  Hercules  Fund,
accurate  appraisal of the value of the net assets of Piper Fund or the Hercules
Fund Assets is impracticable,  the Valuation Date shall  be postponed until  the
first  business day  after the  day when trading  shall have  been fully resumed
without restriction or disruption and reporting shall have been restored.
 
      3.4  At the Closing, each party  shall deliver to the other such bills  of
sale,  checks,  assignments,  share  certificates,  if  any,  receipts  or other
documents as such other party or its counsel may reasonably request.
 
4.  COVENANTS OF PIPER FUND AND HERCULES FUND
 
      4.1   Except  as  otherwise  expressly provided  herein  with  respect  to
Hercules  Fund, Piper Fund and  Hercules Fund each will  operate its business in
the ordinary  course between  the date  hereof and  the Closing  Date, it  being
understood  that  such  ordinary  course  of  business  will  include  customary
dividends and other distributions.
 
      4.2  Piper Company will prepare and file with the Securities and  Exchange
Commission  ("Com-mission")  a registration  statement  on Form  N-14  under the
Securities Act of 1933, as amended  ("1933 Act"), relating to Piper Fund  Shares
("Registration Statement"). Hercules Company will provide Piper Company with the
Proxy  Materials  as described  in  paragraph 4.3  below,  for inclusion  in the
Registration
 
                                      A-3
<PAGE>
Statement. Hercules Company will further  provide Piper Company with such  other
information  and documents relating to Hercules Fund as are reasonably necessary
for the preparation of the Registration Statement.
 
      4.3  Hercules Fund will call a meeting of its shareholders to consider and
act upon this Agreement and the Amendment and to take all other action necessary
to obtain  approval  of  the transactions  contemplated  herein,  including,  if
necessary,  the  waiver  of  any  existing  investment  limitations  that  might
otherwise preclude Hercules Fund  from holding all of  its assets as Piper  Fund
Shares until such shares are distributed to Hercules Fund shareholders. Hercules
Company  will prepare the notice  of meeting, form of  proxy and proxy statement
(collectively, "Proxy Materials") to  be used in  connection with such  meeting.
Piper   Company  will  furnish  Hercules  Company  with  a  currently  effective
prospectus relating to Piper  Fund Shares for inclusion  in the Proxy  Materials
and  with  such  other  information  relating to  Piper  Fund  as  is reasonably
necessary for the preparation of the Proxy Materials.
 
      4.4  Subject to the provisions of this Agreement, Piper Fund and  Hercules
Fund  will each take, or  cause to be taken,  all action, and do  or cause to be
done, all things  reasonably necessary,  proper or advisable  to consummate  and
make effective the transactions contemplated by this Agreement.
 
      4.5  As soon after the Closing Date as is reasonably practicable, Hercules
Company (a) shall prepare and file all federal and other tax returns and reports
of  Hercules Fund required by law to be filed with respect to all periods ending
on or before the Closing  Date but not theretofore filed  and (b) shall pay  all
federal  and other taxes shown as due thereon and/or all federal and other taxes
that were unpaid as of the Closing Date, including without limitation, all taxes
for which  the  provision for  payment  was made  as  of the  Closing  Date  (as
represented in paragraph 5.2(k)).
 
      4.6    Piper Fund  agrees  to use  all  reasonable efforts  to  obtain the
approvals and authorizations required by the 1933 Act, the 1940 Act and such  of
the  state blue sky and  securities laws as it may  deem appropriate in order to
continue its operations after the Closing Date.
 
5.  REPRESENTATIONS AND WARRANTIES
 
      5.1  Piper Company represents and warrants to Hercules Company as follows:
 
         (a)  Piper Fund  is a  series  of Piper  Company.  Piper Company  is  a
              corporation  validly existing and in  good standing under the laws
              of Minnesota  with corporate  power to  carry on  its business  as
              presently conducted;
 
         (b)  Piper   Company  is   a  duly   registered,  open-end,  management
              investment company, and its registration with the Commission as an
              investment company under the 1940 Act and the registration of  its
              shares under the 1933 Act are in full force and effect;
 
         (c)  All  of the issued and outstanding shares of common stock of Piper
              Fund have  been offered  and sold  in compliance  in all  material
              respects with applicable registration requirements of the 1933 Act
              and  state securities laws. Shares of Piper Fund are registered in
              all jurisdictions  in which  they are  required to  be  registered
              under  state securities laws and other  laws, and Piper Company is
              not subject to any stop order and is fully qualified to sell Piper
              Fund  shares  in  each  state  in  which  such  shares  have  been
              registered;
 
         (d)  The  current Prospectus and Statement of Additional Information of
              Piper Fund  conform in  all material  respects to  the  applicable
              requirements  of the 1933 Act and the 1940 Act and the regulations
              thereunder and do not include  any untrue statement of a  material
              fact  or omit  to state  any material  fact required  to be stated
              therein or necessary to make  the statements therein, in light  of
              the circumstances under which they were made, not misleading;
 
         (e)  Piper  Fund is not in, and the execution, delivery and performance
              of this Agreement will not result in a, material violation of  any
              provision  of Piper Company's Articles of Incorporation or By-Laws
              or of  any agreement,  indenture, instrument,  contract, lease  or
              other undertaking to which Piper Fund is a party or by which it is
              bound;
 
                                      A-4
<PAGE>
          (f)  Other  than  as  disclosed in  Piper  Fund's  currently effective
               prospectus, no material  litigation or administrative  proceeding
               or  investigation of or before any  court or governmental body is
               presently pending or, to its knowledge, threatened against  Piper
               Company  or Piper Fund or any  of its properties or assets which,
               if adversely determined,  would materially  and adversely  affect
               its financial condition or the conduct of its business; and Piper
               Fund  knows  of  no  facts  that might  form  the  basis  for the
               institution of such proceedings and is not a party to or  subject
               to  the provisions of any order,  decree or judgment of any court
               or governmental body which  materially and adversely affects,  or
               is  reasonably  likely to  materially  and adversely  affect, its
               business or  its ability  to consummate  the transactions  herein
               contemplated;
 
         (g)  Piper  Fund's Statement  of Assets  and Liabilities,  Statement of
              Operations, Statement  of  Changes  in Net  Assets  and  Financial
              Highlights as of Piper Fund's most recent fiscal year-end, and for
              the year then ended, certified by KPMG Peat Marwick LLP (copies of
              which  have been furnished  to Hercules Fund),  fairly present, in
              all materials  respects, Piper  Fund's financial  condition as  of
              such   date  in  accordance  with  generally  accepted  accounting
              principles, and  its results  of operations,  changes in  its  net
              assets  and financial highlights  for such period,  and as of such
              date there were no known liabilities of Piper Fund (contingent  or
              otherwise)  not  disclosed  therein  that  would  be  required  in
              accordance with  generally accepted  accounting principles  to  be
              disclosed therein;
 
         (h)  Since  the date of  the most recent  audited financial statements,
              there has not  been any  material adverse change  in Piper  Fund's
              financial  condition, assets, liabilities  or business, other than
              changes occurring  in  the ordinary  course  of business,  or  any
              incurrence  by Piper Fund  of indebtedness maturing  more than one
              year  from  the  date  such  indebtedness  was  incurred,   except
              indebtedness  incurred in the ordinary course of business. For the
              purpose of  this  subparagraph (h),  neither  a decline  in  Piper
              Fund's  net asset value  per share nor a  decrease in Piper Fund's
              size  due  to  redemptions   by  Piper  Fund  shareholders   shall
              constitute a material adverse change;
 
          (i)  All  issued and  outstanding Piper  Fund shares  are, and  at the
               Closing Date will  be, duly and  validly issued and  outstanding,
               fully paid and nonassessable with no personal liability attaching
               to  the ownership thereof.  Piper Fund does  not have outstanding
               any options,  warrants  or  other  rights  to  subscribe  for  or
               purchase any of its shares, nor is there outstanding any security
               convertible to any of its shares;
 
          (j)  The  execution, delivery  and performance of  this Agreement have
               been duly authorized by all necessary action on the part of Piper
               Company, and  this  Agreement  constitutes a  valid  and  binding
               obligation  of  Piper  Fund enforceable  in  accordance  with its
               terms, subject  as  to enforcement,  to  bankruptcy,  insolvency,
               reorganization, moratorium, fraudulent conveyance, and other laws
               relating  to or affecting creditors  rights and to general equity
               principles. No other  consents, authorizations  or approvals  are
               necessary  in connection  with Piper  Fund's performance  of this
               Agreement, except such as have been obtained under the 1933  Act,
               the  1934 Act and the 1940 Act  and such as may be required under
               state securities laws;
 
         (k)  Piper Fund Shares to be issued and delivered to Hercules Fund, for
              the account of  the Hercules  Fund Shareholders,  pursuant to  the
              terms  of this Agreement  will at the Closing  Date have been duly
              authorized and, when  so issued  and delivered, will  be duly  and
              validly  issued  Piper Fund  Shares, and  will  be fully  paid and
              nonassessable  with  no  personal   liability  attaching  to   the
              ownership thereof;
 
          (l)  All  material federal and other tax  returns and reports of Piper
               Fund required by law  to be filed on  or before the Closing  Date
               have  been filed and are correct, and all federal and other taxes
               shown as due or required to be  shown as due on said returns  and
               reports have been paid or provision has been made for the payment
               thereof, and to the best of Piper Fund's
 
                                      A-5
<PAGE>
               knowledge,  no  such  return  is  currently  under  audit  and no
               assessment has been asserted with respect to any such return  and
               there   are  no  facts  that  might   form  the  basis  for  such
               proceedings;
 
         (m)  For each taxable year since its inception, Piper Fund has met  the
              requirements  of Subchapter  M of  the Code  for qualification and
              treatment as  a "regulated  investment  company" and  neither  the
              execution  or delivery of, nor  the performance of its obligations
              under, this Agreement will adversely affect, and no other  events,
              to  the best of  Piper Fund's knowledge,  are reasonably likely to
              occur which will adversely  affect, the ability  of Piper Fund  to
              continue to meet the requirements of Subchapter M of the Code;
 
         (n)  Since  Piper Fund's most recent fiscal year-end, there has been no
              change  by  Piper  Fund  in  accounting  methods,  principles,  or
              practices,   including  those   required  by   generally  accepted
              accounting principles;
 
         (o)  The information furnished or to be furnished by Piper Fund for use
              in registration statements,  proxy materials  and other  documents
              which  may  be  necessary  in  connection  with  the  transactions
              contemplated hereby shall be accurate and complete in all material
              respects and shall  comply in all  material respects with  federal
              securities and other laws and regulations applicable thereto; and
 
         (p)  The  Proxy Materials to be  included in the Registration Statement
              (only insofar as they relate to Piper Fund) will, on the effective
              date of the Registration  Statement and on  the Closing Date,  not
              contain any untrue statement of a material fact or omit to state a
              material  fact required to be stated  therein or necessary to make
              the statements therein, in light of the circumstances under  which
              such statements were made, not materially misleading.
 
     5.2  Hercules Company represents and warrants to Piper Company as follows:
 
         (a)  Hercules Fund is a series of Hercules Company. Hercules Company is
              a corporation validly existing and in good standing under the laws
              of Minnesota.
 
         (b)  Hercules  Company  is  a  duly  registered,  open-end,  management
              investment company, and its registration with the Commission as an
              investment company under the 1940 Act and the registration of  its
              shares under the 1933 Act are in full force and effect;
 
         (c)  All  of  the  issued and  outstanding  shares of  common  stock of
              Hercules Fund  have been  offered and  sold in  compliance in  all
              material respects with applicable registration requirements of the
              1933  Act and state  securities laws. Shares  of Hercules Fund are
              registered in all jurisdictions in  which they are required to  be
              registered  under  state  securities  laws  and  other  laws,  and
              Hercules Company is  not subject to  any stop order  and is  fully
              qualified to sell Hercules Fund shares in each state in which such
              shares have been registered;
 
         (d)  The  current Prospectus and Statement of Additional Information of
              Hercules Fund conform in all  material respects to the  applicable
              requirements  of the 1933 Act and the 1940 Act and the regulations
              thereunder and do not include  any untrue statement of a  material
              fact  or omit  to state  any material  fact required  to be stated
              therein or necessary to make  the statements therein, in light  of
              the circumstances under which they were made, not misleading;
 
         (e)  Hercules   Fund  is  not  in,  and  the  execution,  delivery  and
              performance of  this  Agreement will  not  result in  a,  material
              violation  of  any  provision of  Hercules  Company's  Articles of
              Incorporation  or  By-Laws   or  of   any  agreement,   indenture,
              instrument, contract, lease or other undertaking to which Hercules
              Fund is a party or by which it is bound;
 
          (f)  Other  than as  disclosed in Hercules  Fund's currently effective
               prospectus, no material  litigation or administrative  proceeding
               or  investigation of or before any  court or governmental body is
               presently  pending  or,  to  its  knowledge,  threatened  against
               Hercules
 
                                      A-6
<PAGE>
               Fund  or  any of  its properties  or  assets which,  if adversely
               determined, would materially and  adversely affect its  financial
               condition or the conduct of its business; and Hercules Fund knows
               of no facts that might form the basis for the institution of such
               proceedings and is not a party to or subject to the provisions of
               any  order, decree or judgment of  any court or governmental body
               which materially and adversely  affects, or is reasonably  likely
               to  materially and adversely affect,  its business or its ability
               to consummate the transactions herein contemplated;
 
         (g)  Hercules Fund's Statement of Assets and Liabilities, Statement  of
              Operations,  Statement  of  Changes in  Net  Assets  and Financial
              Highlights of Hercules Fund as of  June 30, 1995 and for the  year
              then  ended, certified by  KPMG Peat Marwick  LLP (copies of which
              have been or will be furnished  to Piper Fund) fairly present,  in
              all  material respects, Hercules Fund's  financial condition as of
              such date,  and its  results  of operations,  changes in  its  net
              assets and financial highlights for such period in accordance with
              generally  accepted  accounting principles,  and  as of  such date
              there were no  known liabilities of  Hercules Fund (contingent  or
              otherwise)  not  disclosed  therein  that  would  be  required  in
              accordance with  generally accepted  accounting principles  to  be
              disclosed therein;
 
         (h)  Since  the date of  the most recent  audited financial statements,
              there has not been any material adverse change in Hercules  Fund's
              financial  condition, assets, liabilities  or business, other than
              changes occurring  in  the ordinary  course  of business,  or  any
              incurrence by Hercules Fund of indebtedness maturing more than one
              year  from  the date  such  indebtedness was  incurred,  except as
              otherwise disclosed in writing to  and acknowledged by Piper  Fund
              prior to the date of this Agreement and prior to the Closing Date.
              All  liabilities of  Hercules Fund (contingent  and otherwise) are
              reflected in the Valuation Date Statement. For the purpose of this
              subparagraph (h), neither a decline  in Hercules Fund's net  asset
              value  per share  nor a  decrease in  Hercules Fund's  size due to
              redemptions by  Hercules  Fund  shareholders  shall  constitute  a
              material adverse change;
 
          (i)  Hercules  Fund  has no  material  contracts or  other commitments
               (other  than  this  Agreement)  that  will  be  terminated   with
               liability to it prior to the Closing Date;
 
          (j)  All  issued and outstanding  shares of Hercules  Fund are, and at
               the  Closing  Date   will  be,  duly   and  validly  issued   and
               outstanding,  fully  paid  and  nonassessable  with  no  personal
               liability attaching to the ownership thereof. Hercules Fund  does
               not  have outstanding  any options,  warrants or  other rights to
               subscribe for  or  purchase  any  of its  shares,  nor  is  there
               outstanding  any security convertible  to any of  its shares. All
               such shares will, at the time of Closing, be held by the  persons
               and in the amounts recorded by Hercules Fund's transfer agent;
 
         (k)  The  execution, delivery  and performance  of this  Agreement will
              have been  duly  authorized  prior  to the  Closing  Date  by  all
              necessary  action on the part of  Hercules Company, and subject to
              the approval  of  Hercules  Fund's  shareholders,  this  Agreement
              constitutes  a  valid  and  binding  obligation  of  Hercules Fund
              enforceable  in  accordance   with  its  terms,   subject  as   to
              enforcement to bankruptcy, insolvency, reorganization, moratorium,
              fraudulent  conveyance, and  other laws  relating to  or affecting
              creditors rights  and  to  general  equity  principles.  No  other
              consents,  authorizations or approvals are necessary in connection
              with Hercules Fund's performance of this Agreement, except such as
              have been obtained under the 1933  Act, the 1934 Act and the  1940
              Act and such as may be required under state securities laws;
 
          (l)  All  material  federal  and  other  tax  returns  and  reports of
               Hercules Fund  required by  law  to be  filed  on or  before  the
               Closing  Date  shall  have been  filed  and are  correct  and all
               federal and other taxes shown as  due or required to be shown  as
               due  on said returns and reports  have been paid or provision has
               been  made  for  the  payment   thereof,  and  to  the  best   of
 
                                      A-7
<PAGE>
               Hercules  Fund's  knowledge, no  such  return is  currently under
               audit and no  assessment has  been asserted with  respect to  any
               such  return and there are no facts that might form the basis for
               such proceedings;
 
         (m)  For each taxable year since  its inception, Hercules Fund has  met
              all the requirements of Subchapter M of the Code for qualification
              and  treatment as a "regulated investment company" and neither the
              execution or delivery of, nor  the performance of its  obligations
              under,  this Agreement will adversely affect, and no other events,
              to the best of Hercules Fund's knowledge, are reasonably likely to
              occur which will adversely affect the ability of Hercules Fund  to
              continue to meet the requirements of Subchapter M of the Code;
 
         (n)  At  the Closing Date, Hercules Fund will have good and valid title
              to the Hercules Fund Assets, subject  to no liens (other than  the
              obligation,  if  any,  to  pay  the  purchase  price  of portfolio
              securities purchased by Hercules Fund which have not settled prior
              to the Closing  Date), security interests  or other  encumbrances,
              and  full  right,  power  and  authority  to  assign,  deliver and
              otherwise transfer such  assets hereunder, and  upon delivery  and
              payment  for  such  assets,  Piper  Fund  will  acquire  good  and
              marketable title thereto, subject to  no restrictions on the  full
              transfer  thereof, including any restrictions as might arise under
              the 1933 Act;
 
         (o)  On the effective date of  the Registration Statement, at the  time
              of  the meeting of Hercules Fund's shareholders and on the Closing
              Date, the Proxy Materials will (i) comply in all material respects
              with the provisions of the  1933 Act, the Securities Exchange  Act
              of  1934,  as  amended  ("1934  Act") and  the  1940  Act  and the
              regulations thereunder and (ii)  not contain any untrue  statement
              of a material fact or omit to state a material fact required to be
              stated  therein or  necessary to  make the  statements therein not
              misleading. Neither Hercules  Fund nor Hercules  Company shall  be
              construed  to have made the  foregoing representation with respect
              to portions of the  Proxy Materials furnished  by Piper Fund.  Any
              other  information  furnished  by  Hercules Fund  for  use  in the
              Registration  Statement  or  in  any  other  manner  that  may  be
              necessary  in connection with the transactions contemplated hereby
              shall be accurate and  complete and shall  comply in all  material
              respects  with applicable  federal securities  and other  laws and
              regulations thereunder;
 
         (p)  Hercules Fund has maintained or has caused to be maintained on its
              behalf  all  books  and  accounts  as  required  of  a  registered
              investment  company in compliance with the requirements of Section
              31 of the 1940 Act and the Rules thereunder; and
 
         (q)  Hercules Fund  is not  acquiring Piper  Fund Shares  to be  issued
              hereunder for the purpose of making any distribution thereof other
              than in accordance with the terms of this Agreement.
 
6.  CONDITIONS PRECEDENT TO OBLIGATIONS OF HERCULES FUND
 
    The obligations of Hercules Fund to consummate the transactions provided for
herein  shall be subject, at  its election, to the  performance by Piper Fund of
all the obligations to  be performed by  it hereunder on  or before the  Closing
Date and, in addition thereto, the following conditions:
 
     6.1   All  representations and warranties  of Piper Fund  contained in this
Agreement shall be  true and correct  in all  material respects as  of the  date
hereof  and, except as they may be  affected by the transactions contemplated by
this Agreement, as of the Closing Date with the same force and effect as if made
on and as of the be Closing Date.
 
     6.2  Piper Fund shall have delivered to Hercules Fund a certificate of  its
President  and Treasurer, in a form reasonably satisfactory to Hercules Fund and
dated as  of  the Closing  Date,  to the  effect  that the  representations  and
warranties  of Piper Company made in this  Agreement are true and correct at and
as of the a  Closing Date, except  as they may be  affected by the  transactions
contemplated by this Agreement, and as to such other matters as Hercules Company
shall reasonably request.
 
     6.3  Hercules Company shall have received a favorable opinion from Dorsey &
Whitney  LLP, counsel to Piper Fund, dated as of the Closing Date, to the effect
that: (a) Piper Company is a validly existing
 
                                      A-8
<PAGE>
Minnesota corporation and has the corporate  power to own all of the  properties
and  assets of Piper Fund and, to the knowledge of such counsel, to carry on its
business as  presently  conducted;  (b)  Piper Company  is  a  duly  registered,
open-end,  management investment company, and, to the knowledge of such counsel,
its registration with the Commission as an investment company under the 1940 Act
is in  full force  and effect;  (c)  this Agreement  has been  duly  authorized,
executed  and  delivered  by  Piper Fund  and,  assuming  that  the Registration
Statement complies  with  the 1933  Act,  the 1934  Act  and the  1940  Act  and
regulations thereunder and assuming due authorization, execution and delivery of
this Agreement by Hercules Fund, is a valid and binding obligation of Piper Fund
enforceable  against  Piper Fund  in accordance  with its  terms, subject  as to
enforcement, to bankruptcy,  insolvency, reorganization, moratorium,  fraudulent
conveyance  and  other laws  relating to  or affecting  creditors rights  and to
general equity principles; (d) Piper Fund  Shares to be issued to Hercules  Fund
Shareholders  as provided  by this Agreement  are duly  authorized and, assuming
receipt of the  consideration to be  paid therefor, upon  such delivery will  be
validly  issued and  outstanding and fully  paid and nonassessable,  and, to the
knowledge of  such counsel,  no shareholder  of Piper  Fund has  any  preemptive
rights  to subscription  or purchase in  respect thereof; (e)  the execution and
delivery of this  Agreement did not,  and the consummation  of the  transactions
contemplated  hereby will not, violate Piper Company's Articles of Incorporation
or By-Laws; and  (f) to  the knowledge of  such counsel,  no consent,  approval,
authorization  or order  of any  court or  governmental authority  of the United
States or  any state  is required  for the  consummation by  Piper Fund  of  the
transactions  contemplated herein, except  such as have  been obtained under the
1933 Act, the 1934 Act and the 1940 Act and such as may be required under  state
securities laws.
 
     6.4   As of the  Closing Date, there shall have  been no material change in
the investment objective,  policies and  restrictions, nor any  increase in  the
investment management fees or annual fees payable pursuant to Piper Fund's 12b-1
plan  of distribution, from  those described in the  Prospectus and Statement of
Additional Information of Piper Fund in effect on the date of this Agreement.
 
7.  CONDITIONS PRECEDENT TO OBLIGATIONS OF PIPER FUND
 
    The obligations  of Piper  Fund to  complete the  transactions provided  for
herein shall be subject, at its election, to the performance by Hercules Fund of
all  the obligations to  be performed by  it hereunder on  or before the Closing
Date and, in addition thereto, the following conditions:
 
     7.1  All representations  and warranties of  Hercules Company contained  in
this Agreement shall be true and correct in all material respects as of the date
hereof  and, except as they may be  affected by the transactions contemplated by
this Agreement, as of the Closing Date with the same force and effect as if made
on and as of the Closing Date.
 
     7.2  Hercules  Fund shall have  delivered to  Piper Fund at  the Closing  a
certificate   of  its  President  and  its  Treasurer,  in  form  and  substance
satisfactory to Piper Fund and dated as of the Closing Date, to the effect  that
the  representations and warranties of Hercules  Fund made in this Agreement are
true and correct at and as of the  Closing Date, except as they may be  affected
by the transactions contemplated by this Agreement, and as to such other matters
as Piper Fund shall reasonably request.
 
     7.3    Hercules  Fund  shall  have delivered  to  Piper  Fund  a statement,
certified by the Treasurer of Hercules Company, of the Hercules Fund Assets  and
its  liabilities, together with  a list of  Hercules Fund's portfolio securities
and other  assets showing  the  respective adjusted  bases and  holding  periods
thereof for income tax purposes, such statement to be prepared as of the Closing
Date   and  in   accordance  with   generally  accepted   accounting  principles
consistently applied.
 
     7.4  Piper Fund shall have received at the Closing a favorable opinion from
Gordon Altman Butowsky Weitzen Shalov & Wein, counsel to Hercules Fund, dated as
of the  Closing Date  to the  effect that:  (a) Hercules  Company is  a  validly
existing  Minnesota corporation and  has the corporate  power to own  all of the
properties and assets of Hercules Fund and, to the knowledge of such counsel, to
carry on its business  as presently conducted (Minnesota  counsel may be  relied
upon  in delivering  such opinion); (b)  Hercules Company is  a duly registered,
open-end management investment company under the 1940 Act, and, to the knowledge
of such counsel, its registration with  the Commission as an investment  company
under the 1940 Act is in full force and effect; (c) this Agreement has been duly
authorized, executed and delivered by
 
                                      A-9
<PAGE>
Hercules  Fund and, assuming  that the Registration  Statement complies with the
1933 Act, the  1934 Act  and the  1940 Act  and the  regulations thereunder  and
assuming  due authorization, execution  and delivery of  this Agreement by Piper
Fund, is a  valid and binding  obligation of Hercules  Fund enforceable  against
Hercules  Fund  in accordance  with  its terms,  subject  as to  enforcement, to
bankruptcy, insolvency, reorganization,  moratorium, fraudulent conveyance,  and
other  laws  relating to  or affecting  creditors rights  and to  general equity
principles; (d) the execution  and delivery of this  Agreement did not, and  the
consummation  of the transactions contemplated hereby will not, violate Hercules
Company's Articles of Incorporation or By-Laws; and (e) to the knowledge of such
counsel,  no  consent,  approval,  authorization  or  order  of  any  court   or
governmental  authority of the  United States or  any state is  required for the
consummation by Hercules  Fund of the  transactions contemplated herein,  except
such as have been obtained under the 1933 Act, the 1934 Act and the 1940 Act and
such as may be required under state securities laws.
 
     7.5   On the Closing Date, the Hercules Fund Assets shall include no assets
that Piper  Fund,  by  reason  of  Piper  Company's  Articles  of  Incorporation
limitations or otherwise, may not properly acquire.
 
8  FURTHER CONDITIONS PRECEDENT TO OBLIGATIONS OF PIPER FUND AND HERCULES FUND
 
         The  obligations of  Hercules Fund  and Piper  Fund hereunder  are each
   subject to the further conditions that on or before the Closing Date:
 
     8.1  This  Agreement and  the Amendment and  the transactions  contemplated
herein and therein shall have been approved by the requisite vote of the holders
of  the outstanding shares of Hercules Fund in accordance with the provisions of
Hercules Company's  Articles  of  Incorporation, and  certified  copies  of  the
resolutions evidencing such approval shall have been delivered to Piper Fund.
 
     8.2   On  the Closing Date,  no action,  suit or other  proceeding shall be
pending before  any  court or  governmental  agency in  which  it is  sought  to
restrain or prohibit, or obtain damages or other relief in connection with, this
Agreement or the transactions contemplated herein.
 
     8.3   All  consents of  other parties  and all  other consents,  orders and
permits of federal, state and  local regulatory authorities (including those  of
the  Commission  and of  state blue  sky  and securities  authorities, including
"no-action" positions  of  and exemptive  orders  from such  federal  and  state
authorities)  deemed  necessary  by  Piper  Fund  or  Hercules  Fund  to  permit
consummation, in all material respects, of the transactions contemplated  herein
shall have been obtained, except where failure to obtain any such consent, order
or  permit would not involve risk of a  material adverse effect on the assets or
properties of Piper Fund or Hercules Fund.
 
     8.4  The Registration Statement shall have become effective under the  1933
Act,  no stop orders suspending the effectiveness thereof shall have been issued
and, to the best knowledge of the parties hereto, no investigation or proceeding
for that  purpose  shall have  been  instituted  or be  pending,  threatened  or
contemplated under the 1933 Act.
 
     8.5   On or prior to the  Valuation Date, Hercules Fund shall have declared
and paid  a dividend  or dividends  and/or other  distribution or  distributions
that, together with all previous such dividends or distributions, shall have the
effect  of distributing  to its shareholders  all of  Hercules Fund's investment
company taxable income (computed without  regard to any deduction for  dividends
paid)  and all  of its net  capital gain  (after reduction for  any capital loss
carry-forward and computed without regard  to any deduction for dividends  paid)
for all taxable years ending on or before the Closing Date.
 
     8.6  The parties shall have received a favorable opinion of the law firm of
Gordon  Altman Butowsky Weitzen Shalov &  Wein (based on such representations as
such law firm shall reasonably request), addressed to Piper Company and Hercules
Company, which opinion may be relied upon by the shareholders of Hercules  Fund,
substantially to the effect that, for federal income tax purposes:
 
         (a)  The  transfer of  substantially all  of Hercules  Fund's assets in
              exchange for Piper Fund Shares and the assumption by Piper Fund of
              certain stated  liabilities  of  Hercules  Fund  followed  by  the
              distribution by Hercules Fund of Piper Fund Shares to the Hercules
              Fund Shareholders
 
                                      A-10
<PAGE>
              in  exchange  for their  Hercules  Fund shares  will  constitute a
              "reorganization" within the  meaning of Section  368(a)(1) of  the
              Code,  and Hercules Fund and Piper Fund will each be a "party to a
              reorganization" within the meaning of Section 368(b) of the Code;
 
         (b)  No gain or loss will be recognized by Piper Fund upon the  receipt
              of  the assets of Hercules Fund  solely in exchange for Piper Fund
              Shares and the assumption by Piper Fund of the stated  liabilities
              of Hercules Fund;
 
         (c)  No  gain  or loss  will be  recognized by  Hercules Fund  upon the
              transfer of the assets of Hercules Fund to Piper Fund in  exchange
              for  Piper Fund  Shares and  the assumption  by Piper  Fund of the
              stated liabilities of  Hercules Fund or  upon the distribution  of
              Piper  Fund Shares to  the Hercules Fund  Shareholders as provided
              for in this Agreement;
 
         (d)  No  gain  or  loss  will  be  recognized  by  the  Hercules   Fund
              Shareholders  upon the  exchange of  the Hercules  Fund shares for
              Piper Fund Shares;
 
         (e)  The aggregate tax  basis for  Piper Fund Shares  received by  each
              Hercules  Fund Shareholder pursuant to  the Reorganization will be
              the same as the  aggregate tax basis of  the Hercules Fund  shares
              held  by each such Hercules  Fund Shareholder immediately prior to
              the Reorganization;
 
          (f)  The holding period of  Piper Fund Shares to  be received by  each
               Hercules  Fund Shareholder  will include the  period during which
               the Hercules Fund  shares surrendered in  exchange therefor  were
               held  (provided such  Hercules Fund  Shares were  held as capital
               assets on the date of the Reorganization);
 
         (g)  The tax basis  of the assets  of Hercules Fund  acquired by  Piper
              Fund  will be the same as the tax basis of such assets to Hercules
              Fund immediately prior to the Reorganization; and
 
         (h)  The holding period of the assets of Hercules Fund in the hands  of
              Piper  Fund will include the period during which those assets were
              held by Hercules Fund.
 
    Notwithstanding anything  herein to  the contrary,  neither Piper  Fund  nor
Hercules Fund may waive the condition set forth in this paragraph 8.6.
 
     8.7   The  Amendment shall  have been  filed in  accordance with applicable
provisions of Minnesota law.
 
9.  FEES AND EXPENSES
 
     9.1 (a)  PCM shall bear  all direct  expenses incurred  in connection  with
              entering  into and carrying out  the provisions of this Agreement,
              including expenses incurred  in connection  with the  preparation,
              printing,  filing and solicitation of  proxies to obtain requisite
              shareholder approvals.
 
         (b)  In  the  event  the  transactions  contemplated  herein  are   not
              consummated by reason of Hercules Fund's being either unwilling or
              unable  to go forward (other than  by reason of the nonfulfillment
              or  failure  of  any  condition  to  Hercules  Fund's  obligations
              specified  in  this Agreement),  PCM's  obligations, on  behalf of
              Hercules Fund, shall be limited to reimbursement of Piper Fund for
              all reasonable out-of-pocket fees  and expenses incurred by  Piper
              Fund in connection with those transactions.
 
         (c)  In   the  event  the  transactions  contemplated  herein  are  not
              consummated by reason  of Piper Fund's  being either unwilling  or
              unable  to go forward (other than  by reason of the nonfulfillment
              or failure of any condition to Piper Fund's obligations  specified
              in the Agreement), Piper Fund's only obligation hereunder shall be
              to  reimburse Hercules Fund for  all reasonable out-of-pocket fees
              and expenses incurred  by Hercules Fund  in connection with  those
              transactions.
 
                                      A-11
<PAGE>
10.  ENTIRE AGREEMENT; SURVIVAL OF WARRANTIES
 
    10.1  This Agreement constitutes the entire agreement between the parties.
 
    10.2    The  representations,  warranties and  covenants  contained  in this
Agreement or in any document delivered pursuant hereto or in connection herewith
shall survive the consummation of  the transactions contemplated herein,  except
that  the representations, warranties  and covenants of  Hercules Fund hereunder
shall not survive the dissolution and  complete liquidation of Hercules Fund  in
accordance with Section 1.9.
 
11.  TERMINATION
 
    11.1   This  Agreement may be  terminated and  the transactions contemplated
hereby may be abandoned at any time prior to the Closing:
 
         (a)  by the  mutual  written  consent of  Hercules  Company  and  Piper
              Company;
 
         (b)  by  either  Piper Company  or Hercules  Company  by notice  to the
              other, without liability  to the terminating  party on account  of
              such termination (providing the terminating party is not otherwise
              in  material default or  breach of this  Agreement) if the Closing
              shall not have occurred on or before September 15, 1996; or
 
         (c)  by  either  Piper  Fund  or  Hercules  Fund,  in  writing  without
              liability  to the terminating party on account of such termination
              (provided the  terminating  party  is not  otherwise  in  material
              default or breach of this Agreement), if (i) the other party shall
              fail  to perform in any  material respect its agreements contained
              herein required to be performed on  or prior to the Closing  Date,
              (ii)   the   other   party   materially   breaches   any   of  its
              representations, warranties or  covenants contained herein,  (iii)
              the  Hercules Fund shareholders fail  to approve this Agreement at
              any meeting called for such purpose at which a quorum was  present
              or  (iv) any other  condition herein expressed  to be precedent to
              the obligations of the terminating party  has not been met and  it
              reasonably appears that it will not or cannot be met.
 
    11.2 (a)  Termination  of this Agreement pursuant  to paragraphs 11.1 (a) or
              (b) shall terminate all obligations  of the parties hereunder  and
              there  shall be no liability for damages on the part of Piper Fund
              or Hercules Fund  or the directors  or officers of  Piper Fund  or
              Hercules Fund, to any other party or its directors or officers.
 
         (b)  Termination of this Agreement pursuant to paragraph 11.1 (c) shall
              terminate all obligations of the parties hereunder and there shall
              be  no liability for damages on the part of Piper Fund or Hercules
              Fund or the directors or officers of Piper Fund or Hercules  Fund,
              except  that any  party in  breach of  this Agreement  shall, upon
              demand, reimburse  the  non-breaching  party  for  all  reasonable
              out-of-pocket  fees and  expenses incurred in  connection with the
              transactions contemplated  by  this  Agreement,  including  legal,
              accounting and filing fees.
 
12.  AMENDMENTS
 
    This  Agreement may be  amended, modified or supplemented  in such manner as
may be mutually agreed upon in  writing by the parties; PROVIDED, HOWEVER,  that
following  the meeting of  Hercules Fund's shareholders  called by Hercules Fund
pursuant to paragraph 4.3, no such amendment may have the effect of changing the
provisions for determining the number of Piper  Fund Shares to be issued to  the
Hercules  Fund  Shareholders  under  this Agreement  to  the  detriment  of such
Hercules Fund Shareholders without their further approval.
 
13.  MISCELLANEOUS
 
    13.1  The article and paragraph headings contained in this Agreement are for
reference purposes  only  and  shall  not  affect in  any  way  the  meaning  or
interpretation of this Agreement.
 
    13.2   This Agreement may be executed in any number of counterparts, each of
which shall be deemed an original.
 
                                      A-12
<PAGE>
    13.3  This Agreement shall be  governed by and construed in accordance  with
the laws of the State of Minnesota.
 
    13.4   This  Agreement shall bind  and inure  to the benefit  of the parties
hereto and  their  respective  successors  and assigns,  but  no  assignment  or
transfer  hereof or of any rights or  obligations hereunder shall be made by any
party without the written consent of  the other party. Nothing herein  expressed
or  implied is intended or shall be construed to confer upon or give any person,
firm or  corporation,  other  than  the  parties  hereto  and  their  respective
successors  and  assigns, any  rights or  remedies  under or  by reason  of this
Agreement.
 
    13.5  The obligations and liabilities of Piper Company hereunder are  solely
those  of  Piper Fund.  It  is expressly  agreed  that no  shareholder, nominee,
director, officer, agent, or employee of  Piper Fund shall be personally  liable
hereunder.  The execution and delivery of this Agreement have been authorized by
the directors  of Piper  Company  and signed  by  authorized officers  of  Piper
Company  acting as  such, and neither  such authorization by  such directors nor
such execution and delivery by such officers  shall be deemed to have been  made
by  any  of  them  individually  or  to impose  any  liability  on  any  of them
personally.
 
    13.6   The obligations  and liabilities  of Hercules  Company hereunder  are
solely  those of Hercules  Company. It is expressly  agreed that no shareholder,
nominee, director,  officer,  agent,  or  employee of  Hercules  Fund  shall  be
personally  liable hereunder. The execution and  delivery of this Agreement have
been authorized by the  directors of Hercules Company  and signed by  authorized
officers  of Hercules Company acting as  such, and neither such authorization by
such directors nor such execution and delivery by such officers shall be  deemed
to  have been made by any of them individually or to impose any liability on any
of them personally.
 
    IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement  to
be executed by a duly authorized officer.
 
                                          HERCULES FUNDS INC., on behalf of
                                          Hercules Latin American Value Fund
 
                                          By: /s/ William H. Ellis
 
                                          --------------------------------------
                                          Name: William H. Ellis
                                          Title: President
 
                                          PIPER GLOBAL FUNDS INC., on behalf of
                                          Emerging Markets Growth Fund
 
                                          By: /s/ Robert H. Nelson
 
                                          --------------------------------------
                                          Name: Robert H. Nelson
                                          Title: Senior Vice President
 
                                      A-13
<PAGE>
               EXHIBIT 1 TO AGREEMENT AND PLAN OF REORGANIZATION
                             ARTICLES OF AMENDMENT
                                       TO
                           ARTICLES OF INCORPORATION
                                       OF
                              HERCULES FUNDS INC.
 
    The  undersigned  officer of  Hercules  Funds Inc.  ("Hercules  Company"), a
corporation subject to the provisions of Chapter 302A of the Minnesota Statutes,
hereby certifies  that Hercules  Company's (a)  Board of  Directors, by  written
action  dated March 29, 1996,  and (b) shareholders, at  a meeting held June 18,
1996, adopted the resolutions  hereinafter set forth;  and such officer  further
certifies  that the amendments  to Hercules Company's  Articles of Incorporation
set forth in such resolutions were adopted pursuant to Chapter 302A.
 
    WHEREAS, Hercules Company is registered as an open-end management investment
company (I.E.,  a mutual  fund) under  the Investment  Company Act  of 1940  and
offers  its shares to the  public in several series,  each of which represents a
separate and distinct portfolio of assets; and
 
    WHEREAS, it is  desirable and in  the best  interest of the  holders of  the
Hercules  Latin  American Value  Fund ("Hercules  Fund"),  a series  of Hercules
Company, that  the  assets belonging  to  such  series, subject  to  its  stated
liabilities, be sold to Emerging Markets Growth Fund ("Piper Fund"), a series of
Piper  Global  Funds  Inc. ("Piper  Company"),  a Minnesota  corporation  and an
open-end management investment company  registered under the Investment  Company
Act of 1940, in exchange for shares of Piper Fund; and
 
    WHEREAS, Hercules Company wishes to provide for the PRO RATA distribution of
such  shares of Piper Fund received by it  to holders of shares of Hercules Fund
and the simultaneous cancellation  and retirement of  the outstanding shares  of
Hercules Fund; and
 
    WHEREAS,  Hercules Company and Piper Company  have entered into an Agreement
and Plan of Reorganization providing for the foregoing transactions; and
 
    WHEREAS, the Agreement and Plan of Reorganization requires that, in order to
bind all shareholders  of Hercules Fund  to the foregoing  transactions, and  in
particular  to bind such shareholders to  the cancellation and retirement of the
outstanding shares of Hercules  Fund, it is necessary  to adopt an amendment  to
Hercules Company's Articles of Incorporation.
 
    NOW,  THEREFORE,  BE  IT  RESOLVED,  that  Hercules  Company's  Articles  of
Incorporation be, and the same hereby are, amended to add the following  Article
5D immediately following Article 5 thereof:
 
  5D.  (a) For  purposes of this Article 5D,  the following terms shall have the
           following meanings:
 
           "HERCULES COMPANY" means the corporation.
 
           "PIPER  COMPANY"  means   Piper  Global  Funds   Inc.,  a   Minnesota
       corporation.
 
           "ACQUIRED  FUND"  means  Hercules Company's  Hercules  Latin American
       Value Fund, the Series D Shares of the Corporation.
 
           "ACQUIRING FUND" means Piper Company's Emerging Markets Growth Fund.
 
           "VALUATION DATE" means the day established in the Agreement and  Plan
       of Reorganization, as the day upon which the value of the Acquired Fund's
       assets is determined for purposes of the reorganization.
 
           "CLOSING DATE" means 9:00 a.m. on the next business day following the
       Valuation  Date or such  other date and  time set forth  in the pertinent
       plan of  reorganization or  liquidation,  as the  case  may be,  for  the
       consummation of the reorganization or liquidation.
 
        (b)  At the Closing Date, the assets belonging to the Acquired Fund, the
    Special Liabilities associated with such assets, and the General Assets  and
    General  Liabilities allocated  to the Acquired  Fund, shall be  sold to and
    assumed by  the Acquiring  Fund in  return for  Acquiring Fund  shares,  all
 
                                      A-14
<PAGE>
    pursuant  to the Agreement  and Plan of Reorganization.  For purposes of the
    foregoing, the terms "assets belonging to", "Special Liabilities",  "General
    Assets",  and "General  Liabilities" have the  meanings assigned  to them in
    Article 7(b), (c), and (d) of Hercules Company's Articles of Incorporation.
 
        (c) The number of Acquiring Fund  shares to be received by the  Acquired
    Fund  and  distributed by  it  to the  Acquired  Fund shareholders  shall be
    determined as follows:
 
            (i) The value of the Acquired Fund's assets and the net asset  value
       per  share of  the Acquiring  Fund's shares shall  be computed  as of the
       Valuation Date using the valuation procedures set forth in the  Acquiring
       Fund's  then-current Prospectus and  Statement of Additional Information,
       and as may be required by the Investment Company Act of 1940, as  amended
       (the "1940 Act").
 
           (ii)  The  total  number  of  Acquiring  Fund  shares  to  be  issued
       (including  fractional  shares,  if  any)  in  exchange  for  assets  and
       liabilities  of the Acquired Fund shall be determined as of the Valuation
       Date by dividing  the value  of the Acquired  Fund's assets,  net of  its
       stated  liabilities on  the Closing Date  to be assumed  by the Acquiring
       Fund, by the  net asset  value of the  Acquiring Fund's  shares, each  as
       determined pursuant to (i) above.
 
           (iii)  On the Closing Date, or as soon as practicable thereafter, the
       Acquired Fund shall distribute PRO RATA to its shareholders of record  as
       of  the  Valuation Date  the full  and  fractional Acquiring  Fund shares
       received by the Acquired Fund pursuant to (ii) above.
 
        (d)  The  distribution  of  Acquiring  Fund  shares  to  Acquired   Fund
    shareholders provided for in paragraph (c) above shall be accomplished by an
    instruction,  signed by Hercules Company's  Secretary, to transfer Acquiring
    Fund shares then credited to the Acquired Fund's account on the books of the
    Acquiring Fund to open accounts  on the books of  the Acquiring Fund in  the
    names  of  the  Acquired  Fund  shareholders  in  amounts  representing  the
    respective  PRO  RATA  number  of  Acquiring  Fund  shares  due  each   such
    shareholder pursuant to the foregoing provisions. All issued and outstanding
    shares of the Acquired Fund shall simultaneously be canceled on the books of
    the Acquired Fund and retired.
 
        (e)  From and after the Closing  Date, the Acquired Fund shares canceled
    and retired  pursuant  to paragraph  (d)  above  shall have  the  status  of
    authorized  and unissued Shares of  Hercules Company, without designation as
    to series.
 
    IN WITNESS WHEREOF, the undersigned officer of Hercules Company has executed
these Articles of Amendment on behalf of Hercules Company on        , 1996.
 
                                          HERCULES FUNDS INC.
                                          By ___________________________________
                                          Its __________________________________
 
                                      A-15
<PAGE>
APPENDIX A TO
PROXY STATEMENT/PROSPECTUS
 
                        ADDITIONAL INFORMATION REGARDING
                          EMERGING MARKETS GROWTH FUND
                       Series of Piper Global Funds Inc.
                              Piper Jaffray Tower
           222 South Ninth Street, Minneapolis, Minnesota 55402-3804
                           (800) 866-7778 (toll free)
 
    Emerging  Markets Growth Fund ("Emerging Markets  Fund" or the "Fund")) is a
newly formed series  of Piper Global  Funds Inc. ("Piper  Global"), an  open-end
mutual  fund. Currently, shares of one series, Pacific-European Growth Fund (not
discussed herein) are offered. Emerging Markets Fund is a non-diversified mutual
fund. The investment objective  of the Fund  is long-term capital  appreciation.
Current  income is incidental to this  objective. Emerging Markets Fund seeks to
achieve its investment objective through  investments primarily in Common  Stock
of  issuers in the world's emerging securities markets. The Fund does not invest
in Common Stock of  U.S. companies. No  assurance can be  given that the  Fund's
investment objective will be achieved.
 
    Investment  in the Fund involves certain risks and requires consideration of
factors not typically associated with investment in securities of U.S.  issuers.
See "Risk Factors."
 
    This  Appendix  concisely  describes information  about  the  Fund including
applicable sales and distribution fees.
<PAGE>
                                  INTRODUCTION
 
    Emerging  Markets Growth  Fund is a  non-diversified series  of Piper Global
Funds Inc.  ("Piper  Global"), an  open-end  management investment  company,  or
mutual  fund.  The  investment  objective  of  the  Fund  is  long-term  capital
appreciation. Current income is incidental to this objective.
 
The Investment Adviser
    The  Fund  is  managed  by   Piper  Capital  Management  Incorporated   (the
"Adviser"), a wholly owned subsidiary of Piper Jaffray Companies Inc.
 
    Emerging Markets Fund pays the Adviser a monthly management fee at an annual
rate  of 1% of the Fund's average daily net assets. This fee is higher than that
paid by most other mutual funds. See "Management--Investment Adviser."
 
The Sub-Adviser
    Edinburgh  Fund  Managers   plc  acts   as  the   Fund's  sub-adviser   (the
"Sub-Adviser")  under an agreement with the Adviser. The Sub-Adviser is a public
limited company that was incorporated in  1969. It is controlled by The  British
Investment  Trust PLC, a Scottish closed-end investment company founded in 1889,
for which the Sub-Adviser serves as investment manager and adviser. The  British
Investment  Trust PLC owns   % of  the Sub-Adviser. For its services to Emerging
Markets Fund, the Sub-Adviser is paid a  fee by the Adviser equal, on an  annual
basis,    to   .50%   of   the   Fund's    average   daily   net   assets.   See
"Management--Sub-Adviser."
 
The Distributor
    Piper Jaffray Inc. ("Piper  Jaffray" or the  "Distributor"), a wholly  owned
subsidiary  of Piper  Jaffray Companies  Inc. and  an affiliate  of the Adviser,
serves as Distributor of the Fund's shares. Pursuant to the Fund's  distribution
plan  pursuant to Rule 12b-1 (the "12b-1 Plan") under the Investment Company Act
of 1940,  as amended  (the "1940  Act"), Emerging  Markets Fund  reimburses  the
Distributor  each month at the rate of 0.50%  of average daily net assets of the
Fund. The Distributor has agreed  to voluntarily limit reimbursements under  the
Fund's  12b-1 Plan  to 0.32% of  average daily  net assets through  at least the
fiscal year ending June 30, 1997.
 
Offering Price
    Shares of the  Fund are offered  to the  public at the  next determined  net
asset  value  after  receipt  of  an  order  by  a  shareholder's  Piper Jaffray
Investment Executive or other broker-dealer plus a maximum sales charge of 4% of
the offering price  (4.17% of the  net asset  value) on purchases  of less  than
$100,000.  The sales  charge is  reduced on  a graduated  scale on  purchases of
$100,000 or more. In connection with purchases of $500,000 or more, there is  no
initial  sales charge;  however, a 1%  contingent deferred sales  charge will be
imposed in the  event of  a redemption  transaction occurring  within 24  months
following such a purchase. See "How to Purchase Shares--Public Offering Price."
 
Minimum Initial and Subsequent Investments
    The minimum initial investment for the Fund is $250. There is no minimum for
subsequent investments. See "How to Purchase Shares--Minimum Investments."
 
Exchanges
    You  may exchange your shares for shares of any other mutual fund managed by
the Adviser which is open to new  investors and eligible for sale in your  state
of  residence. All exchanges are subject  to the minimum investment requirements
and other applicable terms set forth in the prospectus of the fund whose  shares
you  acquire. Exchanges  are made on  the basis of  the net asset  values of the
funds involved, except that investors exchanging into a fund which has a  higher
sales  charge must  pay the  difference. You  may make  four exchanges  per year
without payment of a  service charge. Thereafter, there  is a $5 service  charge
for each exchange. See "Shareholder Services--Exchange Privilege."
 
Redemption Price
    Shares of the Fund may be redeemed at any time at their net asset value next
determined  after  a  redemption  request  is  received  by  your  Piper Jaffray
Investment Executive or other broker-dealer. A contingent deferred sales  charge
will  be  imposed  upon the  redemption  of certain  shares  initially purchased
<PAGE>
without a sales charge.  See "How to  Redeem Shares--Contingent Deferred  Shares
Charge."  The Fund reserves the right, upon 30 days written notice, to redeem an
account if the  net asset  value of  the shares falls  below $200.  See "How  to
Redeem Shares--Involuntary Redemption."
 
Certain Risk Factors to Consider
 
    An  investment in  the Fund  is subject  to certain  risks, as  set forth in
detail under "Investment Objectives and Policies," "Special Investment  Methods"
and  "Risk Factors." As with other mutual  funds, there can be no assurance that
the Fund will achieve its objective.  Because the Fund invests in securities  of
emerging  market countries, an investment in  the Fund requires consideration of
certain risk  factors  that  are  not typically  associated  with  investing  in
securities  of U.S. companies.  These factors include  risks relating to adverse
currency fluctuations, potential political,  social and economic instability  of
emerging  market countries, limited liquidity  and volatile prices of securities
traded on  emerging  securities  markets, and  foreign  taxation.  The  Emerging
Markets Fund is a non-diversified fund, which means that it may invest a greater
portion  of its  assets in securities  of individual issuers  than a diversified
fund. As a result, changes  in the market value of  a single issuer could  cause
greater fluctuations in share value than would occur in a more diversified fund.
The  Fund may  also engage in  the following investment  practices which involve
certain special  risks: entering  into currency  exchange transactions,  forward
foreign currency exchange transactions and foreign currency futures and options,
entering  into options transactions on securities  in which the Fund may invest,
the use of repurchase agreements, the lending of portfolio securities,  entering
into  futures  contracts  and  options on  futures  contracts,  the  purchase of
securities on a "when-issued" basis and the purchase or sale of securities on  a
"forward  commitment" basis. The use of  these investment practices may increase
the volatility of the Fund's  net asset value. The  Fund may invest in  illiquid
securities  which will involve greater risk than investments in other securities
and may increase Fund expenses.
 
Shareholder Inquiries
 
    Any questions or  communications regarding a  shareholder account should  be
directed  to your Piper Jaffray  Investment Executive or, in  the case of shares
held through another broker-dealer, to IFTC at (800) 874-6205. General inquiries
regarding the Fund should be  directed to the Fund  at the telephone number  set
forth on the cover page of this Appendix.
<PAGE>
                                 FUND EXPENSES
 
<TABLE>
<CAPTION>
                                                                        Emerging
                                                                        Markets
                                                                        Fund
                                                                        -----
<S>                                                                     <C>
Shareholder Transaction Expenses
    Maximum Sales Load Imposed on Purchases (as a percentage of
     offering price) (1)..............................................  4.00%
    Maximum Deferred Sales Charge (2).................................     0%
    Exchange Fee (3)..................................................    $0
Annual Fund Operating Expenses (as a percentage of average net assets)
    Management Fees...................................................  1.00%
    Rule 12b-1 Fees (4) (after voluntary limitations).................  0.32%
    Other Expenses (after voluntary expense reimbursement) (5)........  0.68%
                                                                        -----
        Total Fund Operating Expenses (after voluntary limitations and
        expense reimbursements).......................................  2.00%
</TABLE>
 
- ---------
(1)  No sales charge will be imposed on Shares in the Reorganization (as defined
    in the Proxy  Statement/ Prospectus of  which this Appendix  is a part).  On
    unrelated  purchases,  the  front  end  sales  charge  of  4.00%  applies to
    purchases of  less than  $100,000 and  scales  down to  0% on  purchases  of
    $500,000 or more.
 
(2)  A contingent  deferred sales  charge ("CDSC") of  1.00% will  be imposed on
    redemptions occurring within 24 months of purchase. No CDSC will be  imposed
    on shareholders who acquire shares in the Reorganization.
 
(3) There is a $5.00 fee for each exchange in excess of four exchanges per year.
    See "How to Purchase Shares-Exchange Privilege."
 
(4)  A portion of  the 12b-1 fee equal  to 0.25% of average  daily net assets is
    characterized  as  a  service  fee  within  the  meaning  of  the   National
    Association of Securities Dealers, Inc. ("NASD") guidelines. Pursuant to the
    Fund's  12b-1 Plan, the Distributor is reimbursed monthly by the Fund at the
    rate of 0.50% of average daily net  assets of the Fund. The Distributor  has
    agreed  to voluntarily  limit 12b-1  fees to 0.32%  per annum  of the Fund's
    average daily net assets.
 
(5) Piper Capital  has agreed to  voluntarily reimburse the  Fund so that  Total
    Fund  Operating Expenses do not exceed 2.00%  of average daily net assets at
    least through June  30, 1997.  Without such  reimbursements, Other  Expenses
    would  have been  1.77% of  average daily  net assets.  Total Fund Operating
    Expenses after voluntary limitations and expense reimbursements are  limited
    to 2.00% of average daily net assets at least through June 30, 1997. Without
    such reimbursements and the voluntary limitation discussed above, Total Fund
    Operating Expenses are estimated to be 3.27% of average daily net assets.
 
Example
    You  would pay the following  expenses on a $1,000  investment assuming a 5%
annual return and redemption at the end of each time period:
 
<TABLE>
<CAPTION>
                                Emerging
                                Markets
                                  Fund
                                --------
          <S>                   <C>
           1 year.............  $    20
           3 years............  $    63
           5 years............  $   108
          10 years............  $   233
</TABLE>
 
    The  purpose  of  the  above  Fund  Expenses  table  is  to  assist  you  in
understanding  the various  costs and expenses  that investors in  the Fund will
bear directly or indirectly.  The Example contained in  the table should not  be
considered  a representation of past or  future expenses. Actual expenses may be
greater or lesser than  those shown. Expenses for  shares of the Fund  purchased
subject  to the maximum front-end sales charge are: $59, $100, $143 and $263 for
the one-, three-, five- and ten-year periods shown, respectively.
 
    The information set forth  in the table  for the Fund  is based on  expenses
expected  to be incurred  by the Fund  during the first  year of operations. The
expenses reflect a  voluntary limitation by  Piper Capital to  limit Total  Fund
Operating   Expenses  to  2.00%  of  average   daily  net  assets.  Absent  such
reimbursement and 12b-1 limitation, estimated Total Fund Operating Expenses  for
Emerging Markets Fund for the fiscal period ended
<PAGE>
June  30,  1996 would  be 3.27%  of  average daily  net assets.  These voluntary
limitations may  be revised  or terminated  at any  time after  the fiscal  year
ending  June 30, 1997. The Adviser may  or may not assume additional expenses of
the Funds from time to time, in  its discretion, while retaining the ability  to
be  reimbursed by the Funds  for expenses assumed during  a fiscal year prior to
the end of such year. The foregoing policy will have the effect of lowering  the
Fund's overall expense ratio and increasing yield to investors when such amounts
are assumed or the inverse when such amounts are reimbursed.
 
    As  a result of the Fund's payment of its Rule 12b-1 fee, a portion of which
is considered an asset-based sales  charge, long-term shareholders of the  Funds
may  pay more than the economic equivalent  of the maximum 6.25% front end sales
charge permitted  under the  rules  of the  National Association  of  Securities
Dealers,  Inc. For additional information, including a more complete explanation
of management  and Rule  12b-1 fees,  see "Management--Investment  Adviser"  and
"Distribution of Fund Shares."
 
    It is expected that the performance history and financial information of the
Emerging  Markets Fund, upon consummation of the Reorganization, will be that of
its predecessor, Hercules Latin American Value Fund.
 
                       INVESTMENT OBJECTIVE AND POLICIES
 
    Emerging  Markets   Fund's  investment   objective  is   long-term   capital
appreciation.  Current income is incidental  to this objective. Emerging Markets
Fund seeks to  achieve its  investment objective  through investments  primarily
(under  normal circumstances, at least 65% of  its total assets) in Common Stock
(as defined  above)  of issuers  in  the world's  emerging  securities  markets.
Emerging securities markets can be found in regions such as Latin America, Asia,
Eastern  Europe,  the  Middle  East,  Southern  Europe  and  Africa.  The Fund's
investment objective is  fundamental and cannot  be changed without  shareholder
approval.  In attempting to achieve  the Fund's investment objective, Management
will focus primarily  on allocation  of assets among  selected emerging  markets
and, secondarily, on issuer selection within those markets. Because the Emerging
Markets  Fund is  the successor  to the Hercules  Latin American  Vaue Fund (see
"General Information") the portfolio will initially consist solely of securities
of Latin American  issuers. This  may cause the  fund's performance  to be  more
volatile than that of a more geographically diversified fund. See "Risk Factors"
for  a discussion  of the  risks of investment  in Latin  America. As investment
opportunities arise,  however, Management  expects to  allocate new  investments
among  emerging markets in other geographic areas of the world. The Fund will at
all times, except  during defensive  periods, maintain investments  in at  least
three countries having emerging markets.
 
    The  Fund's assets  will be allocated  among emerging  markets in accordance
with Management's judgment as to where the best investment opportunities  exist.
Criteria  for determining the appropriate  distribution of investments within an
emerging market include the prospects  for relative growth among the  countries,
expected   levels  of   inflation,  government   policies  influencing  business
conditions, the outlook for currency relationships and the range of  alternative
opportunities  available to  international investors. Criteria  for selection of
individual securities include the  issuer's competitive position, prospects  for
growth,  managerial strength, earnings quality, underlying asset value, relative
market value and  overall marketability. The  Fund may invest  in securities  of
companies  having various levels of net worth, including smaller companies whose
securities generally  are  more  volatile  than  securities  offered  by  larger
companies with higher levels of net worth.
 
    Countries  with emerging markets  include those that  have an emerging stock
market as defined by the International  Finance Corporation, those with low-  to
middle-income  economies according to the  International Bank for Reconstruction
and Development (the World Bank), and those listed in World Bank publications as
developing. The Fund will emphasize countries with relatively low gross national
product per  capita  compared to  the  world's  major economies,  and  with  the
potential  for rapid economic growth. An issuer in an emerging market is defined
as a  company: (1)  the principal  securities  trading market  for which  is  an
emerging  market; (2) which  is organized under  the laws of  an emerging market
country; or (3)  which derives a  significant proportion (at  least 50%) of  its
revenues  or profits from goods produced  or sold, investments made, or services
performed in the emerging market country or which has at least 50% of its assets
situated in such a country.
<PAGE>
    The Fund  currently intends  to select  its investments  from the  following
countries with emerging markets:
 
<TABLE>
<S>            <C>
Asia:          China, India, Indonesia, Korea, Malaysia, Pakistan, Philippines, Sri
               Lanka, Taiwan, Thailand
Europe:        Czech Republic, Greece, Hungary, Poland, Portugal
Latin
America:       Argentina, Brazil, Chile, Colombia, Mexico, Peru, Venezuela
Africa:        Nigeria, South Africa, Zimbabwe
Middle East:   Jordan, Turkey
</TABLE>
 
    The  foregoing  list of  emerging markets  is not  exhaustive; the  Fund may
invest in countries  other than  those listed  above when  such investments  are
consistent  with the Fund's investment objective  and policies. The Fund will at
all times, except  during defensive  periods, maintain investments  in at  least
three  countries having emerging markets.  General characteristics of developing
market countries  also include  lower  degrees of  political stability,  a  high
demand  for capital  investment, a high  dependence on export  markets for their
major industries, a need  to develop basic  economic infrastructures, and  rapid
economic  growth.  Management  believes  that  investments  in  Common  Stock of
companies in emerging  markets offer the  opportunity for significant  long-term
investment  returns. However, these investments involve certain risks. See "Risk
Factors" below.
 
Types of Securities in Which the Funds May Invest
 
    The Fund invests primarily in  Common Stock. In addition,  up to 10% of  the
Fund's  assets may be invested in rights, options or warrants to purchase Common
Stock. In addition to investing directly in Common Stock, the Fund may invest in
American Depository Receipts ("ADRs") and European Depository Receipts ("EDRs").
Generally, ADRs  in  registered  form are  U.S.  dollar  denominated  securities
designed  for use  in the  U.S. securities markets,  which represent  and may be
converted into the  underlying foreign  security. EDRs are  typically issued  in
bearer  form and are  designed for use  in the European  securities markets. The
Fund does not  currently intend to  invest in ADR's  sponsored by persons  other
than  the underlying  issuers. The Fund  also may purchase  shares of investment
companies or trusts which invest principally in securities in which the Fund  is
authorized  to invest. The purchase of investment company stock currently is one
of the  few  mechanisms through  which  the Fund  may  invest in  securities  of
companies  located in a  number of countries.  For a discussion  of the risks of
investing  in   investment   companies,  see   "Risk   Factors--Investment   and
Repatriation Restrictions."
 
    For  temporary defensive purposes, the Fund may invest without limitation in
U.S. dollar denominated or foreign currency denominated cash or in high  quality
debt  securities with remaining maturities of  one year or less. Such securities
may include commercial paper, certificates of deposit, bankers' acceptances  and
securities  issued  by  the U.S.  or  a  foreign government,  their  agencies or
instrumentalities. All  securities  in  which the  Fund  invests  for  defensive
purposes  (other than securities issued  or guaranteed by the  U.S. or a foreign
government, their agencies or instrumentalities) must  be rated AA or better  by
Standard  & Poor's Ratings Services or be of comparable quality as determined by
the Adviser. For an explanation of ratings,  see Exhibit A to Appendix A to  the
Statement of Additional Information relating to the Proxy Statement/ Prospectus.
 
                           SPECIAL INVESTMENT METHODS
 
    The  following  discussion  describes  some  of  the  investment  management
practices that the  Fund may employ  from time to  time to facilitate  portfolio
management and mitigate risk.
 
Foreign Currency Transactions
 
    The Fund may engage in currency exchange transactions in connection with the
purchase  and  sale  of  its  investments.  Currency  exchange  transactions are
necessary to enable  the Fund to  purchase securities denominated  in a  foreign
currency and to convert interest and dividend payments or sales proceeds paid in
a  foreign currency into U.S. dollars or into another currency. In addition, the
Fund may engage in  forward foreign currency  exchange transactions and  foreign
currency  futures and options  transactions to protect  against uncertainty with
respect to future currency exchange rates. Forward currency exchange and futures
<PAGE>
and options transactions are used only for hedging and not for speculation.  The
Fund  conducts currency exchange  transactions either on a  spot (cash) basis at
the rate prevailing  in the currency  exchange market or  through entering  into
forward or futures contracts to purchase or sell foreign currencies.
 
    The  Fund may engage in "transaction hedging" to protect against a change in
the foreign currency exchange rate between the date on which the Fund  contracts
to  purchase or sell  the security and the  settlement date or  to "lock in" the
U.S. dollar  equivalent (or  other  foreign currency  equivalent to  the  extent
needed  for purposes of purchasing securities) of a dividend or interest payment
in a foreign currency. For that purpose, the Fund may purchase or sell a foreign
currency on a spot  (or cash) basis  at the prevailing  spot rate in  connection
with  the settlement of transactions in portfolio securities denominated in that
foreign currency.
 
    If conditions warrant, the Fund may also enter into contracts to purchase or
sell foreign currencies at a future  date ("forward contracts") and purchase  or
sell  foreign currency futures  contracts as a hedge  against changes in foreign
currency exchange rates  between the  trade and settlement  dates on  particular
transactions  and not for speculation. A  foreign currency forward contract is a
negotiated agreement to exchange currency  at a future time  at a rate or  rates
that  may  be higher  or  lower than  the  spot rate.  Foreign  currency futures
contracts  are   standardized   exchange-traded  contracts   and   have   margin
requirements.
 
    For transaction hedging purposes, the Fund may also purchase exchange-listed
and  over-the-counter call and put options on foreign currency futures contracts
and on foreign currencies. A put option on a futures contract gives the Fund the
right to assume a short position in the futures contract until expiration of the
option. A put option on currency gives the Fund the right to sell a currency  at
an exercise price until the expiration of the option. A call option on a futures
contract  gives the  Fund the  right to  assume a  long position  in the futures
contract until the expiration of the option. A call option on currency gives the
Fund the right to purchase a currency at the exercise price until the expiration
of the option.
 
    The Fund may engage  in "position hedging" to  protect against a decline  in
the  value relative  to the  U.S. dollar  of the  currencies in  which portfolio
securities are denominated or  quoted (or an increase  in the value of  currency
for  securities which the Fund  intends to buy, when  it holds cash reserves and
short-term investments). For position hedging purposes, the Fund may purchase or
sell foreign currency futures contracts and foreign currency forward  contracts,
and  may purchase put or call options  on foreign currency futures contracts and
in foreign currencies  on exchanges or  over-the-counter markets. In  connection
with  position hedging, the Fund may also purchase or sell foreign currency on a
spot basis.
 
    Transaction and  position  hedging  do not  eliminate  fluctuations  in  the
underlying  prices of the securities which the  Fund owns or intends to purchase
or sell. They simply establish a rate of exchange which one can achieve at  some
future  point in time. Additionally, although  these techniques tend to minimize
the risk of loss due to a decline in the value of the hedged currency, they tend
to limit any potential gain which might result from the increase in the value of
such currency. In addition, hedging transactions involve costs and may result in
losses. The Fund may write covered call options on foreign currencies to  offset
some  of  the  costs  of  hedging those  currencies.  The  Fund  will  engage in
over-the-counter transactions only when appropriate exchange-traded transactions
are unavailable and when, in the  opinion of the Adviser, the pricing  mechanism
and  liquidity  are satisfactory  and the  participants are  responsible parties
likely to meet their  contractual obligations. The Fund's  ability to engage  in
hedging  and related option  transactions may be  limited by tax considerations.
See "Taxation--Consequences of Certain  Fund Investments" in  Appendix A to  the
Statement of Additional Information relating to this Proxy Statement/Prospectus.
 
    For  additional  information  regarding foreign  currency  transactions, see
"Investment Objectives and Policies--Foreign Currency Transactions" in  Appendix
A   to  the  Statement   of  Additional  Information   relating  to  this  Proxy
Statement/Prospectus.
 
Hedging
 
    The Fund  may  engage in  various  futures  and put  and  call  transactions
(collectively,  "Hedging  Transactions"). Hedging  Transactions  may be  used to
attempt to protect against possible declines  in the market value of the  Fund's
portfolio,  to protect the Fund's unrealized gains in the value of its portfolio
securities, to facilitate the sale of such securities for investment purposes or
to establish a position in the securities markets as a temporary substitute  for
purchasing  particular  securities.  Any  or  all  of  these  techniques  may be
<PAGE>
used at any time. There is no overall limitation on the percentage of the Fund's
portfolio securities  which may  be subject  to a  hedge position.  There is  no
particular  strategy that requires use of one technique rather than another. Use
of any  Hedging Transaction  is a  function of  market conditions.  The  Hedging
Transactions  that  the Fund  may use  are  described below.  Additional Hedging
Transactions may be used by the Fund in the future as they are developed to  the
extent deemed appropriate by the Board of Directors of Piper Global.
 
    OPTIONS  ON  SECURITIES.   In seeking  to reduce  fluctuations in  net asset
value, the  Fund  may write  (i.e.,  sell), covered  put  and call  options  and
purchase  put and call  options on the  securities in which  it may invest. Such
options are  traded  on  U.S.  and  foreign  securities  exchanges  and  in  the
over-the-counter markets.
 
    A  put option gives the buyer of such option, upon payment of a premium, the
right to deliver a specified amount of a security to the writer of the option on
or before  a fixed  date  at a  predetermined price.  A  call option  gives  the
purchaser  of the option, upon payment of a  premium, the right to call upon the
writer to deliver a specified amount of a security on or before a fixed date, at
a predetermined price. A  call option written  by the Fund  is "covered" if  the
Fund  owns the underlying  security covered by  the call or  has an absolute and
immediate right to acquire that  security without additional cash  consideration
(or  for  additional cash  consideration  held in  a  segregated account  by its
custodian)  upon  conversion  or  exchange  of  other  securities  held  in  its
portfolio.  A call option is also  covered if the Fund holds  a call on the same
security and in the same principal amount as the call written where the exercise
price of the call held (a)  is equal to or less  than the exercise price of  the
call  written or (b) is  greater than the exercise price  of the call written if
the difference is  maintained by the  Fund in  cash and high  grade liquid  debt
securities  in a segregated account with its  custodian. A put option written by
the Fund is  "covered" if the  Fund maintains  cash and high  grade liquid  debt
securities with a value equal to the exercise price in a segregated account with
its  custodian,  or else  holds  a put  on  the same  security  and in  the same
principal amount as the put written where the exercise price of the put held  is
equal  to or greater than  the exercise price of the  put written. The Fund will
not write puts  if, as a  result, more than  50% of the  Fund's assets would  be
required  to be segregated. The premium paid  by the purchaser of an option will
reflect, among  other things,  the relationship  of the  exercise price  to  the
market  price and volatility  of the underlying security,  the remaining term of
the option, supply and demand and interest rates.
 
    In purchasing a call option,  the Fund would be in  a position to realize  a
gain if, during the option period, the price of the security increased above the
call  option price by an amount in excess  of the cost of the option. Otherwise,
it would realize  a loss. In  purchasing a put  option, the Fund  would be in  a
position  to  realize a  gain if,  during the  option period,  the price  of the
security declined below the put option price by an amount in excess of the  cost
of  the option.  Otherwise, it  would realize a  loss. If  a put  or call option
purchased by the Fund were permitted to expire without being sold or  exercised,
its premium would be lost by the Fund.
 
    If  a  put option  written by  the Fund  were exercised,  the Fund  would be
obligated to purchase the underlying security  at the exercise price. If a  call
option  written by the Fund were exercised,  the Fund would be obligated to sell
the underlying security at  the exercise price. The  risk involved in writing  a
put  option  is that  there  could be  a  decrease in  the  market value  of the
underlying security caused by  rising interest rates or  other factors. If  this
occurred,  the option could be exercised  and the underlying security would then
be sold to the Fund at a higher price than its current value. The risk  involved
in  writing a call option is that there could be an increase in the market value
of the underlying security caused by declining interest rates or other  factors.
If  this occurred,  the option  could be  exercised and  the underlying security
would then be sold by the Fund at  a lower price than its current market  value.
These risks could be reduced by entering into a closing transaction as described
in  Appendix B to the Statement of  Additional Information. The Fund retains the
premium received from writing a put or call option whether or not the option  is
exercised.  See  Exhibit  B  to  Appendix  A  to  the  Statement  of  Additional
Information relating to this Proxy Statement/Prospectus for a further discussion
of the use, risks and costs of option trading.
 
    The exchanges have established position limits governing the maximum  number
of  options which may be written by an  investor or group of investors acting in
concert. Similarly, the Commodities Futures  Trading Commission and the  Chicago
Board of Trade have established futures position limits for an investor or group
of investors acting in concert. (A discussion of the Fund's ability to invest in
futures  contracts and options thereon is  set forth below.) The position limits
may restrict the Fund's ability to
<PAGE>
purchase or write  options on  a particular security  or to  enter into  futures
contracts.  It  is possible  that the  Fund  and other  clients of  the Adviser,
including closed-end  and other  open-end investment  companies managed  by  the
Adviser,  may be considered to be a  group of investors acting in concert. Thus,
the number of options or futures transactions which the Fund may enter into  may
be  affected by  options or  futures transactions  of other  investment advisory
clients of the Adviser.
 
    Over-the-counter options are  purchased or  written by a  Fund in  privately
negotiated  transactions. Such options  are illiquid and it  may not be possible
for the  Fund  to  dispose of  an  option  it has  purchased  or  terminate  its
obligations  under an option it has written  at a time when the Adviser believes
it would be advantageous to do so.
 
    FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS.  The Fund may enter into
contracts for  the  purchase  or  sale for  future  delivery  of  securities  or
contracts  based on financial indices including any index of securities in which
the Fund may  invest ("futures contracts")  and may purchase  and write put  and
call  options to buy or sell futures contracts ("options on futures contracts").
A "sale" of a futures contract means the acquisition of a contractual obligation
to deliver the securities called for by  the contract at a specified price on  a
specified  date. The purchaser of a futures  contract on an index agrees to take
or make  delivery  of an  amount  of cash  equal  to the  difference  between  a
specified  dollar multiple of the  value of the index  on the expiration date of
the contract ("current contract value") and the price at which the contract  was
originally  struck. No physical delivery of  the securities underlying the index
is made. Options on  futures contracts to  be written or  purchased by the  Fund
will be traded on exchanges or over-the-counter. These investment techniques are
used  only  to hedge  against  declines in  the  value of  the  Fund's portfolio
securities or increases in  the prices of securities  which the Fund intends  to
purchase  at a later  date. The successful  use of such  instruments relies upon
management's experience with respect to such instruments. Should prices move  in
an unexpected manner, the Fund may not achie the anticipated benefits of futures
contracts  or options on futures contracts or  may realize losses and would thus
be in a worse position than if  such strategies had not been used. In  addition,
the  correlation between movements in the  price of futures contracts or options
on futures contracts  and movements in  the prices of  the securities hedged  or
used for cover will not be perfect. See Exhibit B to Appendix A to the Statement
of  Additional Information relating to this  Registration Statement on Form N-14
for further discussion  of the  use, risks and  costs of  futures contracts  and
options on futures contracts.
 
    Futures  contracts and options on futures contracts are used only as a hedge
and not for speculation. In addition, the  Fund does not enter into any  futures
contracts  or options on futures contracts  if immediately thereafter the amount
of initial margin deposits on all the futures contracts of the Fund and premiums
paid on options on futures contracts would exceed 5% of the market value of  the
total  assets of the Fund. This restriction will  not be changed by the Board of
Directors  without  considering  the  policies  and  concerns  of  the   various
applicable federal and state regulatory agencies.
 
    The  Fund  limits its  activities in  options and  futures contracts  to the
extent necessary  to  prevent  disqualification  of  the  Fund  as  a  regulated
investment  company under the Internal Revenue Code. For a discussion of the tax
treatment of futures contracts and options on futures contracts, see "Taxation--
Consequences of Certain  Fund Investments"  in Appendix  A to  the Statement  of
Additional Information relating to this Proxy Statement/Prospectus.
 
When-Issued and Forward Commitment Securities
 
    The  Fund may purchase securities on  a "when-issued" basis and may purchase
or sell  securities on  a "forward  commitment" basis.  The Fund  may make  such
purchases  in order to lock-in the purchase price of a security which Management
believes will appreciate in value. There  is always the risk, however, that  the
security  will decrease in  value prior to its  delivery. When such transactions
are negotiated, the  price is  fixed at  the time  the commitment  is made,  but
delivery and payment for the securities take place at a later date, which can be
a  month or more after the  date of the transaction. At  the time the Fund makes
the commitment to  purchase securities  on a when-issued  or forward  commitment
basis,  it will record the transaction and  thereafter reflect the value of such
securities in determining its net asset value. At the time the Fund enters  into
a transaction on a when-issued or forward commitment basis, a segregated account
consisting  of cash or high  grade liquid debt securities  equal to the value of
the when-issued  or  forward  commitment  securities  will  be  established  and
maintained  with the custodian  and will be  marked to the  market daily. On the
<PAGE>
delivery date, the Fund will meet its obligations from securities that are  then
maturing  or sale of the securities held  in the segregated asset account and/or
from then available cash flow.  If the Fund disposes of  the right to acquire  a
when-issued  security  prior to  its  acquisition or  disposes  of its  right to
deliver or receive against a forward commitment, it can incur a gain or loss due
to market fluctuation.
 
    There is always a risk that the securities may not be delivered and that the
Fund may incur a loss or will have lost the opportunity to invest the amount set
aside for such  transaction in  the segregated  asset account.  The purchase  of
securities  on a when-issued or forward commitment basis can result in increased
volatility of the  Fund's net  asset value  to the  extent the  Fund makes  such
purchases  while  remaining  substantially fully  invested.  Settlements  in the
ordinary course, which may take substantially more than three business days  for
non-U.S.  securities,  are not  treated by  the Fund  as when-issued  or forward
commitment transactions  and,  accordingly, are  not  subject to  the  foregoing
limitations even though some of the risks described above may be present in such
transactions.
 
Repurchase Agreements
 
    The   Fund  may  enter,  without   limitation,  into  repurchase  agreements
pertaining to the securities in which  it may invest with securities dealers  or
member banks of the Federal Reserve System. A repurchase agreement arises when a
buyer  such as the Fund purchases a security and simultaneously agrees to resell
it to the vendor at an agreed-upon future  date, normally one day or a few  days
later. The resale price is greater than the purchase price, reflecting an agreed
upon  interest rate which is effective for  the period of time the buyer's money
is invested in  the security and  which is  related to the  current market  rate
rather  than the coupon  rate on the purchased  security. Such agreements permit
the Fund  to  keep  all  of  its assets  at  work  while  retaining  "overnight"
flexibility in pursuit of investments of a longer-term nature. The Fund requires
continual   maintenance  by  its  custodian  for  its  account  in  the  Federal
Reserve/Treasury Book Entry System  of collateral in an  amount equal to, or  in
excess  of, the resale price.  In the event a  vendor defaults on its repurchase
obligation, the Fund might suffer  a loss to the  extent that the proceeds  from
the sale of the collateral are less than the repurchase price. In the event of a
vendor's  bankruptcy, the Fund  might be delayed in,  or prevented from, selling
the collateral for the  Fund's benefit. The Board  of Directors has  established
procedures,  which are periodically reviewed by the Board, pursuant to which the
Adviser will monitor the  creditworthiness of the dealers  and banks with  which
the Fund enters into repurchase agreement transactions.
 
Lending of Securities
 
    In order to facilitate achievement of its investment objective, the Fund may
from  time to time  lend securities from  its portfolio to  brokers, dealers and
financial institutions  and receive  collateral  in the  form  of cash  or  U.S.
government  securities. Securities  lending may  be used  to generate  income to
cushion the Fund against declines in stock prices without requiring the Fund  to
sell  portfolio securities which  it believes will appreciate  in value. As with
other extensions of credit, there are risks of delay in recovery or even loss of
rights in the collateral should the borrower of the securities fail financially.
However, the Fund will enter into  loan arrangements only with brokers,  dealers
or  financial  institutions which  the Adviser  has determined  are creditworthy
under guidelines established by the Board of Directors. In addition,  collateral
for  such loans must be maintained  at all times in an  amount equal to at least
100% of the current market value of the loaned securities (including interest on
the loaned securities). The interest accruing  on the loaned securities will  be
paid  to the Fund and the Fund will have  the right, on demand, to call back the
loaned securities. The Fund may pay fees to arrange the loans. The Fund will not
lend portfolio securities  in excess of  30% of  the value of  its total  assets
(including  such loans), nor does the Fund  lend its portfolio securities to any
officer, director,  employee  or  affiliate  of  the  Fund  or  the  Adviser  or
Sub-Adviser.
 
Illiquid Securities
 
    The  Fund  will not  invest  more than  15% of  its  net assets  in illiquid
securities. This restriction is non-fundamental and thus, may be changed without
shareholder approval. A security is considered illiquid if it cannot be sold  in
the  ordinary course of business within seven days at approximately the price at
which it is valued. Illiquid securities may offer a higher yield than securities
which are more  readily marketable,  but they may  not always  be marketable  on
advantageous terms.
<PAGE>
    The  sale of  illiquid securities  often requires  more time  and results in
higher brokerage charges  or dealer  discounts and other  selling expenses  than
does  the  sale  of  securities  eligible  for  trading  on  national securities
exchanges or in the over-the-counter markets. The Fund may be restricted in  its
ability  to sell such securities at a time when the Adviser or Sub-Adviser deems
it advisable to do so.  In addition, in order  to meet redemption requests,  the
Fund  may have to sell other assets,  rather than such illiquid securities, at a
time which is not advantageous.
 
    "Restricted securities" are securities which were originally sold in private
placements and which have not been  registered under the Securities Act of  1933
(the  "1933  Act"). Such  securities  generally have  been  considered illiquid,
because they may be resold only subject to statutory restrictions and delays  or
if  registered under the 1933 Act. In 1990, however, the Securities and Exchange
Commission adopted Rule 144A  under the 1933 Act,  which provides a safe  harbor
exemption  from the  registration requirements  of the  1933 Act  for resales of
restricted securities to  "qualified institutional  buyers," as  defined in  the
rule.  The result  of this rule  has been the  development of a  more liquid and
efficient  institutional  resale   market  for   restricted  securities.   Thus,
restricted securities are no longer necessarily illiquid. The Fund may therefore
invest  in Rule  144A securities and  treat them  as liquid when  they have been
determined to  be  liquid  by the  Board  of  Directors or  by  the  Adviser  or
Sub-Adviser  subject to the  oversight of and pursuant  to procedures adopted by
the Board  of  Directors.  See  "Investment  Objectives  and  Policies--Illiquid
Securities" in Appendix A to the Statement of Additional Information relating to
this Proxy Statement/Prospectus. Similar determinations may be made with respect
to  commercial paper  issued in  reliance on  the so-called  "private placement"
exemption from registration under Section 4(2) of the 1933 Act.
 
Borrowing
 
    The Fund  may  borrow money  only  from  banks for  temporary  or  emergency
purposes  in  an amount  up to  10% of  the  value of  the Fund's  total assets,
provided that reverse  repurchase agreements entered  into by the  Fund are  not
subject  to such limitation. Reverse repurchase agreements are subject, however,
to the asset coverage  requirements of the Investment  Company Act of 1940  (the
"1940  Act") and  to certain segregated  account requirements. The  Fund has not
entered into  reverse repurchase  agreements  in the  past  and has  no  current
intention  of  entering  into such  agreements  in the  future.  See "Investment
Objectives and Policies-- Reverse  Repurchase Agreements" in  Appendix A to  the
Statement of Additional Information relating to this Proxy Statement/Prospectus.
Interest  paid by the Fund  on borrowed funds will  decrease the net earnings of
the Fund.  The Fund  will not  purchase portfolio  securities while  outstanding
borrowings  (other than reverse repurchase agreements) exceed 5% of the value of
the Fund's total assets. The Fund may mortgage, pledge or hypothecate its assets
only to secure such temporary or emergency borrowing. The policies set forth  in
this  paragraph  are  fundamental and  may  not be  changed  without shareholder
approval.
 
Portfolio Turnover
 
    The Fund  intends  to acquire  and  hold securities  for  long-term  capital
appreciation  and normally does not intend to trade in securities for short-term
gains; however, securities may be purchased and sold at such times as Management
deems to be in the best interests  of the Fund and its shareholders. The  method
of  calculating portfolio turnover rate is set forth in Appendix A the Statement
of Additional  Information relating  to  this Proxy  Statement/Prospectus  under
"Investment  Objectives and  Policies--Portfolio Turnover." It  is expected that
the portfolio turnover rate of the Fund will not exceed 60%.
 
Investment Restrictions
 
    The Fund  has  adopted  certain fundamental  and  nonfundamental  investment
restrictions  in  addition  to  those set  forth  above.  Fundamental investment
restrictions which may not be  changed without shareholder approval include  the
following: The Fund will not invest 25% or more of the value of its total assets
in  the same industry. (This restriction does  not apply to securities issued or
guaranteed by  the U.S.  government or  its agencies  or instrumentalities.)  In
addition,  as nonfundamental investment restrictions which may be changed at any
time without shareholder approval, the Fund will not invest more than 5% of  its
net  assets in warrants or more than 5% of its total assets in the securities of
issuers which, with their predecessors, have a record of less than three  years'
continuous  operation. A list  of the fundamental  and nonfundamental investment
restrictions is  set  forth  in  Appendix  A  to  the  Statement  of  Additional
Information relating to this Proxy Statement/Prospectus.
<PAGE>
                                  RISK FACTORS
 
    Investment  in emerging markets countries' securities requires consideration
of factors  not  typically associated  with  investment in  securities  of  U.S.
issuers. Those include the following:
 
    CURRENCY  FLUCTUATIONS.    The  value  of  the  Fund's  portfolio securities
computed in U.S. dollars will vary with increases and decreases in the  exchange
rate  between the currencies in which the Fund has invested and the U.S. dollar.
A decline in the value of any  particular currency against the U.S. dollar  will
cause  a decline in the  U.S. dollar value of  the Fund's holdings of securities
denominated in such currency  and, therefore, will cause  an overall decline  in
the  Fund's net asset value and net investment income and capital gains, if any,
to be distributed in U.S. dollars to shareholders by the Fund.
 
    The rate  of  exchange between  the  U.S.  dollar and  other  currencies  is
determined  by several factors,  including the supply  and demand for particular
currencies, central bank efforts to support particular currencies, the  movement
of  interest rates,  the price of  oil, the  pace of activity  in the industrial
countries, including  the  United  States,  and  other  economic  and  financial
conditions affecting the world economy.
 
    POLITICAL AND ECONOMIC RISKS.  Investing in securities of non-U.S. companies
may  entail  additional  risks. Nationalization,  expropriation  or confiscatory
taxation, currency blockage,  political changes,  government regulation,  social
instability  or diplomatic developments could affect  adversely the economy of a
country or the Fund's investment in such country. The Fund may also be adversely
affected by exchange control regulations.
 
    CORPORATE  DISCLOSURE  STANDARDS  AND  GOVERNMENTAL  REGULATION.    Non-U.S.
companies  are  not  generally  subject  to  uniform  accounting,  auditing  and
financial reporting standards or to other regulatory requirements comparable  to
those   applicable  to  U.S.  companies.  Thus,  there  may  be  less  available
information concerning non-U.S. issuers of securities  held by the Fund than  is
available concerning U.S. companies.
 
    Applicable  accounting and  financial reporting standards  in Eastern Europe
may be substantially different  from U.S. accounting  standards and, in  certain
Eastern   European   countries,   no   reporting   standards   currently  exist.
Consequently, substantially less  information on Eastern  European companies  is
available  to  investors  and  the  information that  is  available  may  not be
conceptually comparable to, or prepared on  the same basis as that available  in
more  developed  capital markets,  which  may make  it  difficult to  assess the
financial status of particular companies. However, in order to become attractive
to Western  international investors  such  as the  Fund, some  Eastern  European
companies  may  submit  to reviews  of  their financial  condition  conducted in
accordance with  accounting standards  employed in  Western European  countries.
Management  believes  that such  information, together  with the  application of
other analytical techniques, can  provide an adequate basis  on which to  assess
the financial viability of such companies.
 
    MARKET  CHARACTERISTICS.  Securities of many  non-U.S. companies may be less
liquid and  their  prices  more  volatile than  securities  of  comparable  U.S.
companies. In addition, securities of companies traded in many countries outside
the  U.S., may  be subject  to further  risks due  to the  inexperience of local
brokers and financial institutions in less developed markets, the possibility of
permanent or temporary termination of  trading, and greater spreads between  bid
and  asked prices for  securities. The typically  small size of  the markets for
securities issued by issuers located in emerging markets and the possibility  of
a  low or nonexistent volume of trading in those securities may also result in a
lack of liquidity and  in price volatility of  those securities. Non-U.S.  stock
exchanges   and  brokers  are  subject  to  less  governmental  supervision  and
regulation than in the U.S. and non-U.S. stock exchange transactions are usually
subject to  fixed  commissions,  which  are  generally  higher  than  negotiated
commissions on U.S. transactions. In addition, there may in certain instances be
delays in the settlement of non-U.S. stock exchange transactions.
 
    INVESTMENT  AND  REPATRIATION  RESTRICTIONS.   Some  countries, particularly
emerging markets, restrict,  to varying  degrees, foreign  investments in  their
securities markets. Government and private restrictions take a variety of forms,
including  (a) limitations on the amount of funds that may be introduced into or
repatriated  from  the  country   (including  limitations  on  repatriation   of
investment   income  and   capital  gains);  (b)   prohibitions  or  substantial
restrictions on foreign investment in certain industries or market sectors, such
as defense, energy  and transportation; (c)  restrictions (whether contained  in
the  charter of  an individual  company or  mandated by  the government)  on the
percentage of securities  of a single  issuer which  may be owned  by a  foreign
investor;  (d) limitations on  the types of securities  which a foreign investor
may
<PAGE>
purchase; and  (e) restrictions  on  a foreign  investor's  right to  invest  in
companies whose securities are not publicly traded. In some circumstances, these
restrictions  may  limit  or preclude  investment  in certain  countries  or may
increase the cost of investing in securities of particular companies.
 
    The governments  of  some  countries  may require  that  a  governmental  or
quasi-governmental  authority act as custodian of  the Fund's assets invested in
such countries.  These  authorities may  not  be  qualified to  act  as  foreign
custodians  under the 1940  Act and, as a  result, the Fund will  not be able to
invest in these countries in the absence of exemptive relief from the Securities
and Exchange  Commission.  In addition,  the  risk of  loss  through  government
confiscation may be increased in such countries.
 
    FOREIGN  TAXES.    Each Fund's  interest  and dividend  income  from foreign
issuers may  be subject  to non-U.S.  withholding taxes.  The Fund  also may  be
subject  to  taxes  on trading  profits  in  some countries.  In  addition, some
countries  have  a  transfer   or  stamp  duties   tax  on  certain   securities
transactions.  The imposition of these taxes will  increase the cost to the Fund
of investing in  any country imposing  such taxes. For  U.S. tax purposes,  U.S.
shareholders  may be  entitled to  a credit  or deduction  to the  extent of any
foreign income taxes paid by the Fund. See "Tax Status."
 
    RISKS OF  INVESTMENTS  IN EMERGING  MARKETS.   Investing  in  securities  of
issuers  in emerging markets  involves exposure to  economic structures that are
generally less diverse  and mature  than, and  to political  systems and  social
environments  that  can  be  expected  to have  less  stability  than,  those of
developed countries. Other characteristics of  emerging markets that may  affect
investment  in their markets include certain national policies that may restrict
investment by foreigners and the absence of developed legal structures governing
private and foreign investments and  private property. The typically small  size
of  the markets for securities issued by issuers located in emerging markets and
the possibility of a  low or nonexistent volume  of trading in those  securities
may  also  result  in a  lack  of liquidity  and  in price  volatility  of those
securities. In addition, issuers in emerging markets typically are subject to  a
greater  degree of change in earnings  and business prospects than are companies
in developed markets.
 
    Included among the  emerging markets in  which the Fund  may invest are  the
formerly  communist countries  of Eastern  Europe and  the People's  Republic of
China. Emerging Markets Fund may also invest in the Commonwealth of  Independent
States   (formerly  the  Soviet   Union).  (These  countries   are  referred  to
collectively as the "Communist Countries.")
 
    Upon the accession  to power  of Communist  regimes approximately  40 to  70
years  ago, the  governments of a  number of Communist  countries expropriated a
large amount  of property.  The claims  of many  property owners  against  those
governments  were never finally settled. There can be no assurance that any Fund
investments in Communist Countries would not also be expropriated,  nationalized
or otherwise confiscated. In the event of such expropriation, nationalization or
other  confiscation, the  Fund could lose  its entire investment  in the country
involved. In addition,  any change in  the leadership or  policies of  Communist
Countries  may halt  the expansion of  or reverse the  liberalization of foreign
investment policies  now  occurring  and adversely  affect  existing  investment
opportunities.
 
    RISKS  OF  INVESTMENTS IN  LATIN  AMERICA.   Because  the Fund  will  be the
successor to  the  Hercules  Latin  American  Value  Fund,  the  portfolio  will
initially  consist solely of securities of Latin American issuers as of the date
of the Proxy Statement/Prospectus. Many of the currencies of Latin American  and
certain  other emerging  market countries  have experienced  steady devaluations
relative to the U.S. dollar,  and major devaluations have historically  occurred
in  certain  countries.  Devaluations  in the  currencies  in  which  the Fund's
portfolio securities are denominated may have a detrimental impact on the Fund.
 
    Some Latin American countries also may have managed currencies which are not
free-floating against the U.S. dollar. In addition, there is a risk that certain
Latin American  and  other  emerging  market countries  may  restrict  the  free
conversion   of  their  currencies  into   other  currencies.  Further,  certain
currencies issued by Latin American countries may not be internationally traded.
 
    Most Latin  American countries  have experienced  substantial, and  in  some
periods  extremely high, rates of inflation  for many years. Inflation and rapid
fluctuations in inflation rates have had and may continue to have very  negative
effects  on  the  economies and  securities  markets of  certain  Latin American
countries.
 
    Many Latin American governments  have exercised and  continue to exercise  a
significant  influence  over  many  aspects of  the  private  sector. Government
actions concerning  the  economy  could  have a  significant  effect  on  market
conditions and prices and/or yields of securities in which the Fund invests. For
more  information  on investment  in Latin  American  and other  emerging market
countries, see "Investment
<PAGE>
Objectives   and   Policies--Special   Risk   Considerations--Additional   Risks
Applicable  to Investment in  Countries in Latin  America" in Appendix  A to the
Statement of Additional Information relating to this Proxy Statement/Prospectus.
 
Non-Diversified Status
 
    The Fund is "non-diversified" and, accordingly, will be able to invest  more
than  5% of  the value  of its  assets in  the obligations  of a  single issuer,
subject to  the diversification  requirements of  subchapter M  of the  Internal
Revenue  Code  of  1986, as  amended.  To the  extent  that the  Fund  invests a
relatively high percentage of its assets  in obligations of a limited number  of
issuers,  the Fund may be more susceptible than more widely diversified funds to
any single economic,  political or  regulatory occurrence  or to  changes in  an
issuer's financial condition or in the market's assessment of the issuers.
<PAGE>
                                   MANAGEMENT
 
Board of Directors
 
    The  Board of Directors  of Piper Global has  the primary responsibility for
overseeing the overall management of Piper Global and electing its officers.
 
Investment Adviser
 
    Piper Capital  Management Incorporated  (the  "Adviser") has  been  retained
under an Investment Advisory and Management Agreement (the "Advisory Agreement")
with  Piper  Global to  act  as the  Fund's  investment adviser  subject  to the
authority of the Board of Directors.
 
    In addition to acting  as the investment adviser  for the Fund, the  Adviser
serves  as  investment adviser  to  a number  of  other open-end  and closed-end
investment companies and to various other concerns, including pension and profit
sharing funds, corporate funds  and individuals. As of              , 1996,  the
Adviser  rendered  investment  advice regarding  approximately  $     billion of
assets. The Adviser  is a  wholly owned  subsidiary of  Piper Jaffray  Companies
Inc.,  a publicly held corporation which  is engaged through its subsidiaries in
various aspects of the financial services  industry. The address of the  Adviser
is   Piper  Jaffray  Tower,  222  South  Ninth  Street,  Minneapolis,  Minnesota
55402-3804.
 
    The Adviser supervises, directs  and monitors the day  to day operations  of
the  Fund  in  accordance with  the  Fund's investment  objective,  policies and
restrictions, as well as the implementation of investment programs formulated by
the Sub-Adviser. The Adviser determines the broker-dealers which are eligible to
execute transactions on  behalf of the  Fund. The Adviser  furnishes at its  own
expense  all  necessary  administrative services,  office  space,  equipment and
clerical personnel  for  providing  the foregoing  services.  In  addition,  the
Adviser pays the salaries and fees of all officers and directors of the Fund who
are  affiliated with the Adviser.  The Adviser is liable  to the Fund for losses
resulting from  willful  misconduct,  bad  faith  or  gross  negligence  in  the
performance of its duties or from its reckless disregard of its duties under the
Advisory  Agreement. The Fund  pays the Adviser  a monthly management  fee at an
annual rate of 1%  of the Fund's  average daily net assets.  This fee is  higher
than that paid by most other mutual funds.
 
Sub-Adviser
 
    Edinburgh   Fund  Managers  plc,  Donaldson  House,  97  Haymarket  Terrace,
Edinburgh, Scotland  EH12,  5HD,  is  the Sub-Adviser  for  the  Fund  under  an
agreement  with the Adviser  (the "Sub-Advisory Agreement").  The Sub-Adviser is
responsible for the investment and reinvestment of the Fund's assets in non-U.S.
securities and the placement of brokerage transactions in connection  therewith.
For  its services  to the  Fund, the Sub-Adviser  is paid  a fee  by the Adviser
equal, on an annual basis, to 0.50% of the Fund's average daily net assets.
 
    The Sub-Adviser is a public limited  company that was incorporated in  1969.
The  British  Investment Trust  PLC,  a Scottish  closed-end  investment company
founded in 1889,  for which  the Sub-Adviser  serves as  investment manager  and
adviser,  is a controlling  shareholder of the  Sub-Adviser. The Sub-Adviser, an
investment adviser  registered  under  the  Advisers  Act,  currently  furnishes
investment   management  services,  directly  or  through  subsidiaries,  to  10
closed-end  investment  companies,  18  open-end  investment  companies   (which
includes  18  open-end investment  companies  serving United  Kingdom tax-exempt
institutional clients),  13 pension  plans, 4  charitable organizations  and  13
other  individual/corporate  clients. As  of January  31, 1996,  the Sub-Adviser
managed approximately $5.3 billion of assets.
 
Portfolio Management
 
    The day-to-day management of the Fund is primarily the responsibility of the
Sub-Adviser. The Fund is managed by Michael Balfour and Lloyd Beat. Mr.  Balfour
is a director of Piper Global, has been director of overseas investments for the
Sub-Adviser  since 1992, and  was previously the assistant  director and head of
the Pacific Department of the Sub-Adviser from 1988 to 1992. Mr. Beat joined the
Sub-Adviser in 1987 and is currently  an assistant director of the  Sub-Adviser.
He  is head of the Sub-Adviser's Investment  Strategy Department and a member of
the Asset Allocation Committee.
 
Transfer Agent, Dividend Disbursing Agent and Custodian
 
    First Trust National Association, 180 East Fifth Street, St. Paul, Minnesota
55101, serves  as  Custodian  for  the Fund's  portfolio  securities  and  cash.
Investors  Fiduciary Trust Company ("IFTC"), 127 West Tenth Street, Kansas City,
Missouri 64105, serves as Transfer Agent  and Dividend Disbursing Agent for  the
Fund.
<PAGE>
    Rules  adopted under the 1940 Act permit the Fund to maintain securities and
cash in the custody of certain  eligible banks and securities depositories.  The
Fund's  portfolios of emerging market securities  are held by its sub-custodians
who  are  approved  by  the  directors  in  accordance  with  such  rules.  Such
determination  is made  pursuant to  such rules  following a  consideration of a
number of factors including, but not  limited to, the reliability and  financial
stability  of  the  institution;  the  ability  of  the  institution  to perform
custodial services  for the  Fund;  the reputation  of  the institution  in  its
national  market; the political  and economic stability of  the country in which
the institution  is  located; and  the  risks of  potential  nationalization  or
expropriation of Fund assets.
 
    Piper  Global has entered into Shareholder Account Servicing Agreements with
the Distributor and Piper Trust Company, an affiliate of the Distributor and the
Adviser. Under these  agreements, the  Distributor and Piper  Trust Company,  an
affiliate  of  the  Distributor  and the  Adviser,  provide  transfer  agent and
dividend disbursing agent  services for certain  shareholder accounts. For  more
information,  see "Investment  Advisory and  Other Services--Transfer  Agent and
Dividend Disbursing  Agent"  in  Appendix  A  to  the  Statement  of  Additional
Information relating to this Proxy Statement/Prospectus.
 
Portfolio Transactions and Brokerage Commissions
 
    The  Adviser and Sub-Adviser select brokers and futures commission merchants
to use  for the  Funds' portfolio  transactions. In  making its  selection,  the
Adviser  may consider  a number  of factors, which  are more  fully discussed in
Appendix A to  the Statement of  Additional Information relating  to this  Proxy
Statement/Prospectus,  including  but  not limited  to,  research  services, the
reasonableness of commissions and quality of services and execution. A  broker's
sales  of  Fund  shares  may also  be  considered  a factor  if  the  Adviser or
Sub-Adviser is satisfied that the Fund  would receive from that broker the  most
favorable  price  and  execution  then available  for  a  transaction. Portfolio
transactions for  the  Fund  may  be  effected  through  the  Distributor  on  a
securities  exchange in compliance with Section 17(e)  of the 1940 Act. For more
information,  see  "Portfolio  Transactions  and  Allocation  of  Brokerage"  in
Appendix  A to  the Statement of  Additional Information relating  to this Proxy
Statement/Prospectus.
 
                          DISTRIBUTION OF FUND SHARES
 
    Piper Jaffray acts as  the principal distributor of  the Fund's shares.  The
Fund  has adopted  a Distribution  Plan (the "Plan")  as required  by Rule 12b-1
under the 1940 Act. The Distributor is  paid a total fee in connection with  the
servicing of the Fund's shareholder accounts and in connection with distribution
related  services provided with respect to the  Fund. This fee is calculated and
paid monthly at an annual rate equal to 0.50% of the average daily net assets of
the Fund. Payments under  the Fund's Plan are  not tied exclusively to  expenses
actually incurred by the Distributor and may exceed such expenses.
 
    The  Adviser  and the  Distributor, out  of  their own  assets, may  pay for
certain expenses incurred in connection with  the distribution of shares of  the
Fund.  In particular,  the Adviser may  make payments  out of its  own assets to
Piper Jaffray Investment Executives and other broker dealers in connection  with
their sales of shares of the Fund. See "How to Purchase Shares--Purchase Price."
Further  information regarding the Distribution Plans is contained in Appendix A
to  the   Statement   of  Additional   Information   relating  to   this   Proxy
Statement/Prospectus.
 
    A  portion of  the Rule 12b-1  payments equal  to .25% of  average daily net
assets is categorized as a servicing fee intended to reimburse or compensate the
Distributor  for  the  ongoing  servicing  and/or  maintenance  of   shareholder
accounts.  The  remainder  is  categorized as  a  distribution  fee  intended to
reimburse or compensate the Distributor for its expenses incurred in  connection
with  the sale of Fund  shares. The Distributor has  voluntarily agreed to limit
the total fee payable under the Fund's Plan to .32% of average daily net assets.
This limitation may be revised or terminated at any time after the Fund's fiscal
year ending June 30,  1997. The Distributor  uses all or a  portion of its  Rule
12b-1  fee  to make  payments to  Investment Executives  of the  Distributor and
broker-dealers which have entered into sales agreements with the Distributor. If
shares of the Fund are  sold by a representative  of a broker-dealer other  than
the  Distributor, the broker-dealer is paid 30%  of the average daily net assets
of such Fund attributable to shares sold by the broker-dealer's  representative.
If  shares of the Fund  are sold by an  Investment Executive of the Distributor,
compensation is paid to the  Investment Executive in the  manner set forth in  a
written  agreement, in  an amount  not to  exceed 30%  of the  average daily net
assets of the Fund attributable to shares sold by the Investment Executive.
<PAGE>
- --------------------------------------------------------------------------------
                         SHAREHOLDER GUIDE TO INVESTING
 
                             HOW TO PURCHASE SHARES
 
General
 
    Fund shares  may  be  purchased  at  the  public  offering  price  from  the
Distributor  and from  other broker-dealers who  have sales  agreements with the
Distributor. The address of the Distributor is that of the Fund. The Distributor
reserves the  right to  reject any  purchase order.  You should  be aware  that,
because  the Fund does not issue stock certificates, Fund shares must be kept in
an account with the Distributor or  with IFTC. All investments must be  arranged
through your Piper Jaffray Investment Executive or other broker-dealer.
 
Purchase Price
 
    You  may purchase shares of  the Fund at the net  asset value per share next
calculated after  receipt  of  your  order  by  your  Piper  Jaffray  Investment
Executive or other broker-dealer, plus a front-end sales charge as follows:
 
<TABLE>
<CAPTION>
                                                             Sales Charge       Sales Charge
                                                            as a Percentage    as a Percentage
                                                                  of                 of
Amount of Transaction at Offering Price                     Offering Price     Net Asset Value
- ---------------------------------------------------------  -----------------  -----------------
<S>                                                        <C>                <C>
Less than $100,000.......................................          4.00%              4.17%
$100,000 but less than $250,000..........................          3.25%              3.36%
$250,000 but less than $500,000..........................          2.50%              2.56%
$500,000 and over........................................          0.00%              0.00%
</TABLE>
 
    This  table sets forth total sales  charges or underwriting commissions. The
Distributor may  reallow up  to the  entire sales  charge to  broker-dealers  in
connection  with their sales  of shares. These broker-dealers  may, by virtue of
such reallowance, be deemed to be "underwriters" under the 1933 Act.
 
    The Distributor will make certain payments to its Investment Executives  and
to  other  broker-dealers in  connection with  their sales  of Fund  shares. See
"Distribution of  Fund  Shares," above.  In  addition, the  Distributor  or  the
Adviser,  at  their own  expense, provide  promotional incentives  to investment
executives of the Distributor  and to broker-dealers  who have sales  agreements
with  the Distributor in connection  with sales of shares  of the Fund and other
mutual funds  for  which  the  Adviser  acts  as  investment  adviser.  In  some
instances,  these incentives  may be made  available only  to certain Investment
Executives or broker-dealers who  have sold or may  sell significant amounts  of
such  shares. The incentives may include  payment for travel expenses, including
lodging at luxury resorts, incurred in connection with sales seminars.
 
Purchases of $500,000 or More
 
    If you make a purchase of $500,000 or more (including purchases made under a
Letter of Intent), a 1% contingent deferred sales charge will be assessed in the
event you redeem  shares within  24 months  following the  purchase. This  sales
charge  will be paid to  the Distributor. For more  information, please refer to
the Contingent Deferred  Sales Charge  section of  "How To  Redeem Shares."  The
Distributor  currently pays  its Investment Executives  and other broker-dealers
fees in connection with these purchases as follows:
 
<TABLE>
<CAPTION>
                                                                                   Fee as
                                                                                a Percentage
                                                                                 of Offering
Amount of Transaction                                                               Price
- -----------------------------------------------------------------------------  ---------------
<S>                                                                            <C>
First $1,000,000.............................................................         1.00%
Next $2,000,000..............................................................         0.75%
Next $2,000,000..............................................................         0.50%
Next $5,000,000..............................................................         0.25%
Above $10,000,000............................................................         0.15%
</TABLE>
 
    Piper Jaffray Investment Executives and other broker-dealers generally  will
not  receive a fee in connection with purchases on which the contingent deferred
sales charge is waived. However, the  Distributor, in its discretion, may pay  a
fee  out of its own assets to its Investment Executives and other broker-dealers
in connection with purchases by employee benefit plans on which no sales  charge
is  imposed. Please  see the  Special Purchase  Plans section  of "Reducing Your
Sales Charge."
<PAGE>
- --------------------------------------------------------------------------------
                         SHAREHOLDER GUIDE TO INVESTING
 
Minimum Investments
 
    A minimum initial  investment of $250  is required.There is  no minimum  for
subsequent  investments.  The  Distributor,  in its  discretion,  may  waive the
minimum.
 
                           REDUCING YOUR SALES CHARGE
 
    You may qualify for a  reduced sales charge through  one or more of  several
plans.  You must notify your Piper Jaffray Investment Executive or broker-dealer
at the time of purchase to take advantage of these plans.
 
Aggregation
 
    Front-end  or  initial  sales  charges  may  be  reduced  or  eliminated  by
aggregating  your purchase with purchases  of certain related personal accounts.
In addition,  purchases made  by members  of certain  organized groups  will  be
aggregated  for  purposes  of  determining  sales  charges.  Sales  charges  are
calculated by adding the dollar amount of your current purchase to the higher of
the cost or current value of shares of  any Piper fund sold with a sales  charge
that  are currently held by you and your related accounts or by other members of
your group.
 
    QUALIFIED GROUPS.    You  may  group purchases  in  the  following  personal
accounts together:
 
    - Your individual account.
 
    - Your spouse's account.
 
    - Your children's accounts (if they are under the age of 21).
 
    - Your  employee  benefit plan  accounts if  they  are exclusively  for your
      benefit. This includes accounts such  as IRAs, individual 403(b) plans  or
      single-participant Keogh-type plans.
 
    - A  single trust estate or single fiduciary  account if you are the trustee
      or fiduciary.
 
    Additionally, purchases made by members  of any organized group meeting  the
requirements  listed below may  be aggregated for  purposes of determining sales
charges:
 
    - The group has been in existence for more than six months;
 
    - It is not organized for the  purpose of buying redeemable securities of  a
      registered investment company; and
 
    - Purchases  must be  made through  a central  administration, or  through a
      single dealer, or by other means that result in economy of sales effort or
      expense.
 
    An organized  group does  not  include a  group  of individuals  whose  sole
organizational  connection is participation as credit card holders of a company,
policyholders  of  an  insurance  company,   customers  of  either  a  bank   or
broker-dealer or clients of an investment adviser.
 
Right of Accumulation
 
    Sales  charges for purchases of Fund shares into Piper Jaffray accounts will
be automatically calculated  taking into account  the dollar amount  of any  new
purchases  along with the higher  of current value or  cost of shares previously
purchased  in  any  other  mutual  fund  managed  by  the  Adviser.  For   other
broker-dealer  accounts, you should notify your Investment Executive at the time
of purchase of additional Piper fund shares you may own.
 
Letter of Intent
 
    Your sales charge may be reduced by signing a non-binding Letter of  Intent.
This  Letter of Intent will  state your intention to  invest $100,000 or more in
any of the mutual funds managed by the Adviser that are sold with a sales charge
over a 13-month period, beginning not earlier than 90 days prior to the date you
sign the Letter. You  will pay the  lower sales charge  applicable to the  total
amount  you plan to invest over the 13-month period. Part of your shares will be
held   in   escrow   to   cover   additional   sales   charges   that   may   be
<PAGE>
- --------------------------------------------------------------------------------
                         SHAREHOLDER GUIDE TO INVESTING
due  if you do not invest the planned amount. Please see "Purchase of Shares" in
Appendix A to  the Statement of  Additional Information relating  to this  Proxy
Statement/Prospectus  for  more  details.  You can  contact  your  Piper Jaffray
Investment Executive or other broker-dealer for an application.
 
                             SPECIAL PURCHASE PLANS
 
    For more information on any of the following special purchase plans, contact
your Piper Jaffray Investment Executive or other broker-dealer.
 
Purchase by Piper Jaffray Companies Inc., its Subsidiaries and the Sub-Adviser
 
    Piper Jaffray Companies Inc., its  subsidiaries and the Sub-Adviser may  buy
shares  of  the Fund  without incurring  a sales  charge. The  following persons
associated with such entities  also may buy Fund  shares without paying a  sales
charge:
 
    - Officers, directors and partners.
 
    - Employees and retirees.
 
    - Sales representatives.
 
    - Spouses or children under the age of 21 of any of the above.
 
    - Any  trust, pension, profit-sharing  or other benefit plan  for any of the
      above.
 
Purchases by Broker-Dealers
 
    Employees of broker-dealers who have entered into sales agreements with  the
Distributor, and spouses and children under the age of 21 of such employees, may
buy shares of the Fund without incurring a sales charge.
 
Purchases by Other Individuals Without a Sales Charge
 
    The  following  other  individuals and  entities  also may  buy  Fund shares
without paying a sales charge:
 
    - Clients of  the  Adviser buying  shares  of  the Fund  in  their  advisory
      accounts.
 
    - Discretionary   accounts  at  Piper  Trust  Company  and  participants  in
      investment companies exempt from registration under the 1940 Act that  are
      managed by the Adviser.
 
    - Trust  companies and  bank trust departments  using funds  over which they
      exercise exclusive discretionary investment  authority and which are  held
      in a fiduciary, agency, advisory, custodial or similar capacity.
 
    - Investors  purchasing shares through a  Piper Jaffray Investment Executive
      if the purchase of such shares is funded by the proceeds from the sale  of
      shares  of any  non-money market open-end  mutual fund.  This privilege is
      available for 30 days after the sale.
 
Purchases by Employee Benefit Plans and Tax-Sheltered Annuities
 
    - Shares of  the Fund  will be  sold at  net asset  value, without  a  sales
      charge,  to  employee  benefit  plans  containing  an  actively maintained
      qualified cash  or  deferred  arrangement  under  Section  401(k)  of  the
      Internal  Revenue Code of 1986, as amended (the "Code") (a "401(k) Plan").
      In the event a 401(k) Plan of an employer has purchased shares in the Fund
      or in any other  mutual fund managed  by the Adviser  (other than a  money
      market  fund) during any calendar quarter, any other employee benefit plan
      of such employer that is a qualified plan under Section 401(a) of the Code
      also may purchase shares of the Fund during such quarter without incurring
      a sales charge.
 
    - Custodial  accounts  under   Section  403(b)   of  the   Code  (known   as
      tax-sheltered annuities) also may buy shares of the Fund without incurring
      a sales charge.
<PAGE>
- --------------------------------------------------------------------------------
                         SHAREHOLDER GUIDE TO INVESTING
 
                              HOW TO REDEEM SHARES
 
Normal Redemption
 
    You  may redeem all  or a portion  of your shares  on any day  that the Fund
values its  shares.  (Please refer  to  "Valuation  of Shares"  below  for  more
information.)  Your  shares  will  be  redeemed  at  the  net  asset  value next
calculated after the  receipt of your  instructions in good  form by your  Piper
Jaffray Investment Executive or other broker-dealer as explained below.
 
    PIPER  JAFFRAY INC.  ACCOUNTS.  To  redeem your shares,  please contact your
Piper Jaffray Investment Executive with an oral request to redeem your shares.
 
    OTHER BROKER-DEALER ACCOUNTS.  To redeem your shares, you may either contact
your broker-dealer with an  oral request or send  a written request directly  to
the  Fund's transfer agent, IFTC. This request should contain: the dollar amount
or number of shares to be redeemed, your Fund account number and either a social
security or  tax identification  number (as  applicable). You  should sign  your
request in exactly the same way the account is registered. If there is more than
one owner of the shares, all owners must sign. A signature guarantee is required
for  redemptions over  $25,000. Please contact  IFTC or refer  to "Redemption of
Shares" in  Appendix A  to  the Statement  of  Additional Information  for  more
details relating to this Proxy Statement/Prospectus.
 
Contingent Deferred Sales Charge
 
    If  you invest  $500,000 or more  and, as  a result, pay  no front-end sales
charge, you may incur a contingent deferred sales charge if you redeem within 24
months. This charge will be equal to 1% of the lesser of the net asset value  of
the  shares at the  time of purchase or  at the time  of redemption. This charge
does not apply to amounts representing an  increase in the value of Fund  shares
due  to  capital  appreciation or  to  shares acquired  through  reinvestment of
dividend or  capital gain  distributions. In  determining whether  a  contingent
deferred  sales charge is payable,  shares that are not  subject to any deferred
sales charge will be redeemed first, and  other shares will then be redeemed  in
the order purchased.
 
    LETTER  OF INTENT.  In  the case of a Letter  of Intent, the 24-month period
begins on the date the Letter of Intent is completed.
 
    SPECIAL PURCHASE PLANS.   If you  purchased your shares  through one of  the
plans  described above under  "Special Purchase Plans,"  the contingent deferred
sales charge will be waived. In  addition, the contingent deferred sales  charge
will be waived in the event of:
 
    - The  death or disability (as  defined in Section 72(m)(7)  of the Code) of
      the shareholder. (This waiver will be  applied to shares held at the  time
      of  death  or  the  initial  determination  of  disability  of  either  an
      individual shareholder or one who owns  the shares as a joint tenant  with
      the right of survivorship or as a tenant in common.)
 
    - A  lump sum  distribution from  an employee  benefit plan  qualified under
      Section 401(a) of the Code, an individual retirement account under Section
      408(a) of the  Code or a  simplified employee pension  plan under  Section
      408(k) of the Code.
 
    - Systematic withdrawals from any such plan or account if the shareholder is
      at least 59 1/2 years old.
 
    - A  tax-free return of the excess  contribution to an individual retirement
      account under Section 408(a) of the Code.
 
    - Involuntary redemptions  effected  pursuant  to  the  right  to  liquidate
      shareholder  accounts having  an aggregate  net asset  value of  less than
      $200.
 
    EXCHANGES.  If you exchange your shares, no contingent deferred sales charge
will be imposed. However, the charge  will apply if you subsequently redeem  the
new shares within 24 months of the original purchase.
<PAGE>
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                         SHAREHOLDER GUIDE TO INVESTING
 
    REINSTATEMENT  PRIVILEGE.  If  you elect to  use the Reinstatement Privilege
(please see "Shareholder Services" below), any contingent deferred sales  charge
you  paid  will  be  credited  to  your  account  (proportional  to  the  amount
reinvested). Please see "Redemption of Shares" in Appendix A to the Statement of
Additional Information  relating to  this  Proxy Statement/Prospectus  for  more
details.
 
Payment of Redemption Proceeds
 
    After  your shares  have been redeemed,  the cash proceeds  will normally be
sent to you or your broker-dealer within  three business days. In no event  will
payment  be made more than seven days after  receipt of your order in good form.
However, payment may be postponed or the right of redemption suspended for  more
than  seven days under unusual circumstances, such as when trading is not taking
place on the New York Stock Exchange. Payment of redemption proceeds may also be
delayed if the shares to be redeemed were  purchased by a check drawn on a  bank
which  is  not a  member of  the Federal  Reserve System,  until such  check has
cleared the banking system (normally up to 15 days from the purchase date).
 
Involuntary Redemption
 
    The Fund reserves the right  to redeem your account at  any time if the  net
asset  value of the  account falls below $200  as the result  of a redemption or
exchange request. You will be notified  in writing prior to any such  redemption
and will be allowed 30 days to make additional investments before the redemption
is processed.
 
                              SHAREHOLDER SERVICES
 
Automatic Monthly Investment Program
 
    You may arrange to make additional automated purchases of shares of the Fund
or  certain other  mutual funds  managed by  the Adviser.  You can automatically
transfer $100  or more  per month  from your  bank, savings  and loan  or  other
financial  institution to purchase  additional shares. In  addition, if you hold
your shares in a Piper Jaffray account  you may arrange to make such  additional
purchases by having $25 or more automatically transferred each month from any of
the  money market  fund series  of Piper  Funds. You  should contact  your Piper
Jaffray Investment  Executive  or IFTC  to  obtain authorization  forms  or  for
additional information.
 
Reinstatement Privilege
 
    If  you have redeemed shares of the Fund, you may be eligible to reinvest in
shares of any fund managed by the Adviser without payment of an additional sales
charge. The reinvestment request must be made within 30 days of the  redemption.
This privilege is subject to the eligibility of share purchases in your state as
well  as the minimum  investment requirements and any  other applicable terms in
the prospectus of the fund being acquired.
 
Exchange Privilege
 
    If your investment  goals change,  you may prefer  a fund  with a  different
objective.  If you are considering an  exchange into another mutual fund managed
by the  Adviser,  you  should  carefully read  the  appropriate  prospectus  for
additional  information about  that fund. A  prospectus may  be obtained through
your Piper Jaffray Investment Executive, your broker-dealer or the  Distributor.
To exchange your shares, please contact your Piper Jaffray Investment Executive,
your broker-dealer or IFTC.
 
    You  may exchange your shares for shares of any other mutual fund managed by
the Adviser that  is open to  new investors.  All exchanges are  subject to  the
eligibility  of share purchases in your state  as well as the minimum investment
requirements and any other applicable terms in the prospectus of the fund  being
acquired.  Exchanges are  made on  the basis  of net  asset values  of the funds
involved, except that investors exchanging into a fund which has a higher  sales
charge must pay the difference.
 
    You  may make four exchanges  per year without payment  of a service charge.
Thereafter, you will  pay a $5  service charge for  each exchange. Piper  Global
reserves  the  right to  change or  discontinue the  exchange privilege,  or any
aspect of the privilege, upon 60 days' written notice.
<PAGE>
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                         SHAREHOLDER GUIDE TO INVESTING
 
Telephone Transaction Privileges
 
    PIPER JAFFRAY INC. ACCOUNTS.   If you  hold your shares  in a Piper  Jaffray
account,  you may telephone your Investment Executive to execute any transaction
or to apply for many shareholder services. In some cases, you may be required to
complete a written application.
 
    OTHER BROKER-DEALER ACCOUNTS.   If you hold your  shares in an account  with
your  broker-dealer  or  at  IFTC, you  may  authorize  telephone  privileges by
completing the  Account  Application  and Services  Form.  Please  contact  your
broker-dealer or IFTC (800-874-6205) for an application or for more details. The
Funds  will employ reasonable procedures to confirm that a telephonic request is
genuine, including requiring that payment be made only to the address of  record
or  the bank account designated on the Account Application and Services Form and
requiring certain  means of  telephonic identification.  A Fund  employing  such
procedures,  will  not  be  liable for  following  instructions  communicated by
telephone that it reasonably believes to be genuine. If the Fund does not employ
such procedures,  it  may  be liable  for  any  losses due  to  unauthorized  or
fraudulent  telephone instructions.  It may  be difficult  to reach  the Fund by
telephone during periods when market or economic conditions lead to an unusually
large volume of telephone requests. If  you cannot reach the Fund by  telephone,
you  should contact your broker-dealer or  issue written instructions to IFTC at
the  address  set  forth  herein.  See  "Management--Transfer  Agent,   Dividend
Disbursing  Agent  and Custodian."  The Fund  reserves the  right to  suspend or
terminate its telephone services at any time without notice.
 
Directed Dividends
 
    You may  direct  income dividends  and  capital gains  distributions  to  be
invested  in any other  mutual fund managed  by the Adviser  (other than a money
market fund) that is offered in your state. This investment will be made at  net
asset  value. It will not be subject  to a minimum investment amount except that
you must hold shares in such fund (including the shares being acquired with  the
dividend  or distribution) with  a value at  least equal to  such fund's minimum
initial investment amount.
 
Systematic Withdrawal Plan
 
    If your  account  has  a value  of  $5,000  or more,  you  may  establish  a
Systematic  Withdrawal Plan for  the Fund. This  plan will allow  you to receive
regular periodic  payments by  redeeming as  many shares  from your  account  as
necessary.  As with other  redemptions, a redemption  to make a  withdrawal is a
sale  for  federal  income  tax  purposes.  Payments  made  under  a  Systematic
Withdrawal Plan cannot be considered as actual yield or income since part of the
payments may be a return of capital.
 
    A  request to  establish a Systematic  Withdrawal Plan must  be submitted in
writing to your Piper Jaffray Investment Executive or other broker-dealer. There
are no service charges for maintenance; the minimum amount that you may withdraw
each period is $100. You will be  required to have any income dividends and  any
capital  gains distributions reinvested. You may choose to have withdrawals made
monthly,  quarterly  or  semi-annually.   Please  contact  your  Piper   Jaffray
Investment Executive, other broker-dealer or IFTC for more information.
 
    You  should be aware that  additional investments in an  account that has an
active Systematic Withdrawal Plan  may be inadvisable due  to sales charges  and
tax  liabilities. Please refer  to "Redemption of  Shares" in Appendix  A to the
Statement of Additional Information relating to this Proxy Statement/ Prospectus
for additional details.
 
Account Protection
 
    If you purchased your shares of the Fund through a Piper Jaffray  Investment
Executive,  you may choose from several account options. Your investments in the
Fund held in a  Piper Jaffray account (except  for non-"PAT" accounts) would  be
protected  up  to  $25  million. Investments  held  in  non-"PAT"  Piper Jaffray
accounts are protected up to $2.5 million. In each case, the Securities Investor
Protection Corporation ("SPIC") provides $500,000 of protection; the  additional
coverage  is provided  by The Aetna  Casualty & Surety  Company. This protection
does not cover any declines in the net asset value of Fund shares.
<PAGE>
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                         SHAREHOLDER GUIDE TO INVESTING
 
Confirmation of Transactions and Reporting of Other Information
 
    Each time  there is  a transaction  involving your  Fund shares,  such as  a
purchase,  redemption or dividend reinvestment,  you will receive a confirmation
statement describing that  activity. This  information will be  provided to  you
from  either Piper  Jaffray, your broker-dealer  or IFTC. In  addition, you will
receive various IRS forms after the  first of each year detailing important  tax
information  and the Fund  is required to supply  annual and semi-annual reports
that list  securities  held  by  the Fund  and  include  the  current  financial
statements of the Fund.
 
    HOUSEHOLDING.   If  you have multiple  accounts with Piper  Jaffray, you may
receive some of the above information  in combined mailings. This will not  only
help  to reduce  Fund expenses,  it will help  the environment  by saving paper.
Please contact your Piper Jaffray Investment Executive for more information.
 
                          DIVIDENDS AND DISTRIBUTIONS
 
    Dividends from  net  investment income  and  distributions of  net  realized
capital gains, if any, will be payable to Fund shareholders on an annual basis.
 
    BUYING  A DIVIDEND.  On the record date for a distribution, the Fund's share
price is reduced  by the  amount of  the distribution.  If you  buy shares  just
before  the record date ("buying  a dividend"), you will  pay the full price for
the shares  and  then  receive  a  portion  of  the  price  back  as  a  taxable
distribution.
 
    DISTRIBUTION  OPTIONS.  All net investment income dividends and net realized
capital gains distributions for the Fund generally will be payable in additional
shares of the Fund at  net asset value ("Reinvestment  Option"). If you wish  to
receive  your  distributions  in  cash,  you  must  notify  your  Piper  Jaffray
Investment Executive or  other broker-dealer.  You may elect  either to  receive
income dividends in cash and capital gains distributions in additional shares of
the  Fund  at  net asset  value  ("Split  Option"), or  to  receive  both income
dividends and capital gains distributions in cash ("Cash Option"). You may  also
direct  income  dividends  and capital  gains  distributions to  be  invested in
another mutual fund managed by the Adviser. See "Shareholder  Services--Directed
Dividends"  above. The  taxable status  of income  dividends and/or  net capital
gains distributions is not  affected by whether they  are reinvested or paid  in
cash.
 
                              VALUATION OF SHARES
 
    The  Fund  computes its  net  asset value  on each  day  the New  York Stock
Exchange (the "Exchange") is  open for business. The  calculation is made as  of
the  regular close of the Exchange (currently 4:00 p.m. New York time) after the
Fund has declared any  applicable dividends. In valuing  the Fund's assets,  all
securities  for which market  quotations are readily  available are valued under
normal circumstances at the last sales price prior to the time of determination,
or if no sale is reported at that time, the mean between the closing asked price
and the closing bid price or, if no  bid and asked prices are available, at  the
most recent available sales price. With respect to a security which is listed or
traded  on more than  one exchange, the  Fund normally looks  to the exchange on
which trading is more  extensive. In instances where  market quotations are  not
readily  available and in certain other  circumstances, fair value is determined
according to  methods  selected  in  good  faith  by  the  Board  of  Directors.
Short-term  investments having a maturity of 60  days or less are valued at cost
with any premium amortized or discount credited over the period remaining  until
maturity. Options will be valued at market value or fair value, as determined in
good  faith by or  under the direction of  the Board of  Directors, if no market
exists. Futures contracts  will be  valued at the  settlement price  established
each  day by the board of trade or exchange on which they are traded. Securities
and assets for which market quotations  are not readily available are valued  at
fair value as determined in good faith by or under the direction of the Board of
Directors.
 
    Any assets or liabilities initially expressed in terms of foreign currencies
are translated into U.S. dollars by the pricing service retained by the Fund or,
to  the  extent that  an exchange  rate  is not  available through  such pricing
service, at the mean of current bid and asked prices of such currencies  against
the U.S. dollar last quoted by a major bank that is a regular participant in the
foreign  exchange market.  The Fund  has been  advised that  the pricing service
translates foreign currencies  into U.S. dollars  on the basis  of the  official
exchange rate or by taking into account the quotes provided by a number of major
banks that are regular
<PAGE>
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                         SHAREHOLDER GUIDE TO INVESTING
participants  in the foreign  exchange market. Trading  in securities on foreign
securities exchanges and in over-the-counter markets is normally completed  well
before  the  close  of  business  on each  business  day.  In  addition, foreign
securities trading generally  or in a  particular country or  countries may  not
take place on all business days in New York. Furthermore, trading takes place in
various  foreign markets on days which are not  business days of the Fund and on
which the Fund's  net asset value  is not calculated.  Therefore, the net  asset
value  of the Fund might be significantly affected on days when the investor has
no access to the Fund. The Fund calculates  net asset value per share as of  the
close  of the regular trading session on the Exchange. Such calculation does not
take place  contemporaneously  with  the  determination of  the  prices  of  the
majority  of  the  portfolio  securities used  in  such  calculation.  If events
materially affecting the value  of such securities occur  between the time  when
their  price  is determined  and the  time when  the Fund's  net asset  value is
calculated, such securities will be valued  at fair value as determined in  good
faith by or under the direction of the Board of Directors.
 
                                   TAX STATUS
 
    The  Fund  intends  to  qualify  as  a  regulated  investment  company under
Subchapter M  of the  Internal Revenue  Code  of 1986,  as amended,  during  its
current  taxable year. If so qualified, the  Fund will not be liable for federal
income taxes to the extent it distributes its taxable income to shareholders.
 
    Distributions by the Fund are generally taxable to the shareholders, whether
received in cash or additional shares of  the Fund (or shares of another  mutual
fund  managed by the Adviser). Distributions of net capital gains (designated as
"capital gain  dividends")  are taxable  to  shareholders as  long-term  capital
gains,  regardless of the length of time  the shareholder has held shares of the
Fund.
 
    A shareholder  will  recognize a  capital  gain or  loss  upon the  sale  or
exchange  of shares  in the  Fund if, as  is normally  the case,  the shares are
capital assets in  the shareholder's hands.  This capital gain  or loss will  be
long-term if the shares have been held for more than one year.
 
    The  Fund's investments may  be subject to taxes  in foreign countries which
would reduce the total return on such  investments. In addition, if the Fund  is
deemed  to be a resident of the  United Kingdom for United Kingdom tax purposes,
or if the  Fund is treated  as being engaged  in a trading  activity through  an
agent  in  the United  Kingdom, there  is a  risk that  the United  Kingdom will
attempt to tax all or a portion of  the Fund's gains or income. In light of  the
structure  of  the  Fund  and  the terms  and  conditions  of  the  Advisory and
Sub-Advisory Agreements, the Adviser believes that any such risk is minimal.
 
    If the  Fund has  more than  50%  of its  assets invested  in the  stock  or
securities  of foreign corporations at  the end of the  Fund's taxable year, the
Fund may make an election to allow shareholders either to claim U.S. foreign tax
credits with respect to such foreign taxes paid or to deduct such amounts as  an
itemized  deduction on their tax return. In  the event such an election is made,
shareholders would have to increase their  taxable income by the amount of  such
taxes  and the  Fund would  not be able  to deduct  such taxes  in computing its
taxable income.
 
    The foregoing relates to federal income taxation as in effect as of the date
of this  Proxy Statement/  Prospectus. For  a more  detailed discussion  of  the
federal  income  tax  consequences  of  investing in  shares  of  the  Fund, see
"Taxation" in Appendix A to the Statement of Additional Information relating  to
this  Proxy Statement/Prospectus. Before investing in the Fund, you should check
the consequences of your local and state tax laws.
 
                            PERFORMANCE COMPARISONS
 
    Advertisements and other  sales literature  for the  Fund may  refer to  the
Fund's  "average annual  total return" and  "cumulative total  return." All such
total return quotations are based upon historical earnings and are not  intended
to  indicate  future  performance.  The  return on  and  principal  value  of an
investment in  the Fund  will  fluctuate, so  that  an investor's  shares,  when
redeemed, may be worth more or less than their original cost.
<PAGE>
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                         SHAREHOLDER GUIDE TO INVESTING
 
    Average  annual return is the average annual  compounded rate of return on a
hypothetical $1,000 investment made at  the beginning of the advertised  period.
Cumulative  total  return is  calculated  by subtracting  a  hypothetical $1,000
payment to the Fund from the redeemable value of such payment at the end of  the
advertised  period,  dividing  such  difference by  $1,000  and  multiplying the
quotient by 100. In calculating average annual and cumulative total return,  the
maximum  sales  charge  is deducted  from  the hypothetical  investment  and all
dividends and distributions are assumed to be reinvested.
 
    In addition to advertising total return, comparative performance information
may be used from time  to time in advertising  the Fund's shares including  data
from  Lipper Analytical Services, Inc. and other entities or organizations which
track the performance of  investment companies. Performance of  the Fund may  be
compared to the Lipper Emerging Markets Fund Average.
 
    For additional information regarding the calculation of average annual total
return  and cumulative total return, see "Performance Comparisons" in Appendix A
to  the   Statement   of  Additional   Information   relating  to   this   Proxy
Statement/Prospectus.
 
                              GENERAL INFORMATION
 
    Piper  Global was organized under the laws of the State of Minnesota in 1990
as a closed-end  investment company  and converted into  an open-end  investment
company  on August 31, 1992. At that  time, Pacific-European Growth Fund was the
only series  of Piper  Global.  The Board  of  Directors designated  the  second
series,  i.e., the Fund, in  April, 1996. Piper Global  is authorized to issue a
total of 100 billion shares of common stock, with a par value of $.01 per share.
These shares can be  issued in more  than one class  or series. Each  designated
series  of stock will represent a separate portfolio of investments, each with a
different investment  objective.  The  Board of  Directors  has  authorized  two
billion  shares to be issued as Series A Common Shares and two billion shares to
be issued as Series  B Common Shares,  which are the shares  of common stock  of
Pacific-European   Fund  (not  discussed  herein)  and  Emerging  Markets  Fund,
respectively.
 
    The Board  of  Directors  is  empowered  under  the  Company's  Articles  of
Incorporation  to issue  additional series  of common  stock without shareholder
approval. The Board of Directors  may, without shareholder approval, create  and
issue  one or  more additional classes  of shares  within each Fund,  as well as
within any series of Piper Global created in the future. See "Capital Stock  and
Ownership  of Shares" in  Appendix A to the  Statement of Additional Information
relating to this Proxy Statement/Prospectus.
 
    All shares, when issued,  will be fully paid  and nonassessable and will  be
redeemable.  All shares have equal voting rights.  They can be issued as full or
fractional shares. A fractional share has pro  rata the same kind of rights  and
privileges  as  a full  share. The  shares possess  no preemptive  or conversion
rights.
 
    Each share  of  a  series  has  one  vote  (with  proportionate  voting  for
fractional  shares) irrespective of the relative  net asset value of the series'
shares. On some issues, such as the  election of directors, all shares of  Piper
Global  vote together  as one  series. On an  issue affecting  only a particular
series, the shares of the affected series vote separately. Cumulative voting  is
not  authorized. This  means that  the holders  of more  than 50%  of the shares
voting for the election  of directors can  elect 100% of  the directors if  they
choose to do so, and, in such event, the holders of the remaining shares will be
unable to elect any directors.
 
    The  Bylaws of Piper  Global provide that shareholder  meetings need be held
only with such frequency as required under Minnesota law. Minnesota  corporation
law requires only that the Board of Directors convene shareholders meetings when
it  deems appropriate.  In addition,  Minnesota law  provides that  if a regular
meeting of shareholders has  not been held during  the immediately preceding  15
months, a shareholder or shareholders holding 3% or more of the voting shares of
Piper  Global may  demand a  regular meeting  of shareholders  by written notice
given to the chief executive officer or chief financial officer of Piper Global.
Within 30 days after receipt of the demand, the Board of Directors shall cause a
regular meeting of  shareholders to be  called, which meeting  shall be held  no
later  than 90  days after receipt  of the demand,  all at the  expense of Piper
Global. In addition, the 1940 Act requires a shareholder vote for all amendments
to fundamental investment policies  and restrictions and  for all amendments  to
investment
<PAGE>
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                         SHAREHOLDER GUIDE TO INVESTING
advisory contracts and Rule 12b-1 distribution plans. The 1940 Act also provides
that directors of Piper Global may be removed by action of the record holders of
two-thirds  or more of the outstanding shares of Piper Global. The directors are
required to call a meeting  of shareholders for the  purpose of voting upon  the
question  of removal of any director when  so requested in writing by the record
holders of at least 10% of Piper Global's outstanding shares.
 
Pending Legal Proceedings
 
    Complaints have  been  brought  against  the  Adviser  and  the  Distributor
relating to several other investment companies for which the Adviser acts or has
acted  as investment  adviser or subadviser.  These lawsuits do  not involve the
Fund and the Adviser and Distributor do not believe that the lawsuits will  have
a  material adverse effect upon their  ability to perform under their agreements
with the Fund. A  number of complaints  have been brought  in federal and  state
court  against the Institutional Government Income Portfolio ("PJIGX") series of
Piper  Funds  Inc.,  the  Adviser,  the  Distributor,  and  certain  individuals
affiliated  or  formerly affiliated  with the  Adviser  and the  Distributor. In
addition, complaints have been filed in  federal court relating to an number  of
closed-end  investment  companies  managed  by  the  Adviser  and  two  open-end
investment companies  for  which  the  Adviser has  acted  as  sub-adviser.  The
compaints,  which  ask for  recission  of plaintiff  shareholders'  purchases or
compensatory damages, plus interest, costs and expenses, generally allege, among
other things,  certain  violations  of federal  and/or  state  securities  laws,
including  the  making  of  materially  misleading  statements  in  prospectuses
concerning investment  policies  and  risks. See  "Pending  Litigation"  in  the
Statement of Additional Information.
 
    A  settlement  agreement  has  been  reached  with  respect  to  one  of the
complaints involving  PJIGX. An  Amended  Consolidated Class  Action  Complaint,
which  represents a consolidation of claims  previously brought by 11 persons or
entities, was filed  on October  5, 1994 in  the United  States District  Court,
District  of Minnesota. The named plaintiffs  in this putative class action (the
"PJIGX action")  purport to  represent a  class of  individuals and  groups  who
purchased  shares of PJIGX  during the period  from July 1,  1991 through May 9,
1994. The  named  plaintiffs  and  defendants have  entered  into  a  settlement
agreement  which has received preliminary approval  from the Court. The terms of
the settlement are set forth in a  Settlement Agreement dated July 20, 1995  (as
modified  by  an Addendum  filed  on July  28,  1995). The  Settlement Agreement
contained a provision  which would have  permitted the defedants  to cancel  the
Agreement if shareholders who had incurred a cumulative "loss" (as defined under
the  Agreement) of more than  10% of the loss sustained  by the entire class had
opted out. The October 2, 1995 deadline for requesting exclusion from the  class
has  passed, and the loss sustained by persons requesting exclusion is less than
10%. If granted  final approval  by the  Court, the  settlement agreement  would
provide  up  to  $70  million  to  class  members  in  payments  scheduled  over
approximately three  years.  Such  payments  would  be  made  by  Piper  Jaffray
Companies  and the  Adviser and  would be  an obligation  of Piper  Funds, Inc.,
another investment company in the Piper Funds complex. Six additional complaints
have been brought  and a number  of actions have  been commenced in  arbitration
relating  to PJIGX.  The complaints  generally have  been consolidated  with the
PJIGX action for pretrial  purposes and the  arbitrations and litiagations  have
been  stayed  pending entry  of an  order  by the  Court permitting  those class
members who have requested exclusion to proceed with their actions.
 
    The Adviser and the Distributor to not believe that the PJIGX settlement  or
any  outstanding complaint or action in arbitration will have a material adverse
effect on their ability to perform under their agreements with Piper Global or a
material adverse effect on  the Funds, and they  intend to defend such  lawsuits
and actions vigorously.
<PAGE>
                                                                              --
<PAGE>
                              HERCULES FUNDS INC.
                       HERCULES LATIN AMERICAN VALUE FUND
 
                   PROXY FOR SPECIAL MEETING OF SHAREHOLDERS
                            TO BE HELD June 18, 1996
 
    The  undersigned shareholder of  Hercules Latin American  Value Fund ("Latin
American Value Fund"),  a series of  Hercules Funds Inc.  (the "Company"),  does
hereby appoint WILLIAM H. ELLIS, ROBERT H. NELSON and SUSAN SHARP MILEY and each
of them, as attorneys-in-fact and proxies of the undersigned, each with the full
power  of substitution, to  attend the Special Meeting  of Shareholders of Latin
American Value Fund to  be held on  June 18, 1996, at  Piper Jaffray Tower,  222
South  Ninth Street,  Third Floor,  Minneapolis, Minnesota  at 10  a.m., Central
time, and at all adjournments thereof and to vote the shares held in the name of
the undersigned on the record date  for said meeting for the Proposal  specified
on the reverse side hereof. Said attorneys-in-fact shall vote in accordance with
their best judgment as to any other matter.
 
    THIS  PROXY IS SOLICITED BY  THE BOARD OF DIRECTORS.  THE BOARD OF DIRECTORS
RECOMMENDS A VOTE FOR THE PROPOSAL LISTED ON THE REVERSE SIDE HEREOF. THE SHARES
REPRESENTED HEREBY WILL BE VOTED AS INDICATED  ON THE REVERSE SIDE OR FOR IF  NO
CHOICE IS INDICATED.
 
    Please  mark your proxy, date and sign it  on the reverse side and return it
promptly in the accompanying  envelope, which requires no  postage if mailed  in
the United States.
<PAGE>
Please mark boxes / / or /X/ in blue or black ink.
 
The Proposal:
 
    Approval  of the Agreement and Plan of Reorganization, dated as of April 15,
1996 (the "Plan"), by and between the Company, on behalf of Latin American Value
Fund, and Piper  Global Funds Inc.,  on behalf of  Emerging Markets Growth  Fund
("Emerging  Markets Fund"), pursuant to which substantially all of the assets of
Latin American  Value  Fund  will  be acquired  by  Emerging  Markets  Fund  and
shareholders  of Latin American Value Fund  will become shareholders of Emerging
Markets Fund receiving shares of Emerging Markets Fund with a value equal to the
value of their holdings  in Latin American  Value Fund. A vote  in favor of  the
Plan  will be  considered a  vote in favor  of an  amendment to  the articles of
incorporation  of  the  Company  required   to  effect  the  reorganization   as
contemplated by the Plan.
 
                  FOR / /         AGAINST / /        ABSTAIN / /
                                           Dated: ________________________, 1996
                                                        (Month)      (Day)
                                           _____________________________________
                                                       Signature(s)
                                           _____________________________________
                                                       Signature(s)
 
                                           Please read both sides of this
                                           ballot.
 
                                           NOTE: PLEASE SIGN EXACTLY AS YOUR
                                           NAME(S) APPEAR HEREON.
                                           When  signing as custodian, attorney,
                                           executor,   administrator,   trustee,
                                           etc.,  please give your full title as
                                           such. All  joint owners  should  sign
                                           this   proxy.   If  the   account  is
                                           registered   in   the   name   of   a
                                           corporation,   partnership  or  other
                                           entity, a duly authorized  individual
                                           must  sign on its behalf and give his
                                           or her title.


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