KEYSTONE OMEGA FUND
N-30D, 1996-02-12
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PAGE 1 
- --------------------------------- 
Keystone Omega Fund 
Seeks maximum capital growth from 
common stocks. 

Dear Shareholder: 

We are writing to report to you on the performance of Keystone Omega Fund for 
the twelve-month period which ended December 31, 1995. 

Performance 

For the twelve months which ended December 31, 1995, your Fund produced the 
following total returns. 

  Class A shares returned 36.94%. 

  Class B shares returned 35.70%. 

  Class C shares returned 35.62%. 

  The Standard & Poor's 500 Index--a widely recognized benchmark of stock 
price performance--returned 37.58% for the same period. Keystone Omega Fund 
maintained a **** (four-star) rating from Morningstar for its risk-adjusted 
performance as of December 31, 1995.(1) 

  Your Fund's excellent performance reflected the strong bull market during 
the year, which was fueled by moderate economic growth, declining interest 
rates and low inflation. Continued strong earnings and an improved 
international position for many U.S. companies helped sustain the year-long 
stock market rally. In this environment, your Fund benefited from our 
emphasis on stable growth companies and companies benefiting from 
productivity enhancement. These holdings produced strong performance, 
particularly as the year progressed. 

Portfolio strategy 

In early 1995 our strategy was generally cautious and designed to minimize 
the impact of a possible market correction. In retrospect, we may have been 
overly cautious. As a result of our defensive positioning, Omega Fund got off 
to a slow start during the first few months of the year, although it caught 
up quickly. During the second half of the year, holdings in the technology, 
finance and healthcare sectors performed very well, contributing to your 
Fund's strong performance. 

Two dominant investment themes 

We maintained our emphasis on two key investment themes throughout the year: 
productivity enhancement and stable growth. This led us to invest in 
electronics, telecommunications and software companies, because we believed 
they would provide the productivity tools to help U.S. corporations compete 
more effectively in a global economy. In the second half of the year, we 
trimmed back our technology holdings and increased holdings in 
healthcare-related industries, including biotechnology and drug companies. We 
believed there were good opportunities in these stable growth companies 
because they historically have provided solid returns regardless of economic 
conditions. 

                                                                   (continued) 
- --------------------------
(1) Source: Morningstar, Inc. Morningstar's proprietary ratings reflect the 
    Fund's historical risk-adjusted performance as of December 31, 1995. 
    Ratings are subject to change monthly. They are calculated based on the 
    Fund's 3-, 5- and 10-year average annual return in excess or below the 
    90-day Treasury bill return. Ratings are not adjusted for sales charges, 
    but are adjusted for other fees. The top 10% of the funds in an 
    investment category receive 5 stars, the next 22.5% receive 4 stars, the 
    next 35% receive 3 stars, the next 22.5% receive 2 stars and the bottom 
    10% receive 1 star. In the equity category, the Fund received a 3-star 
    rating for the 3-year and 5-year periods and a 4-star rating for the 
    10-year period. There were 1397 funds in the 3-year, 591 funds in the 
    5-year, and 508 funds in the 10-year equity category. Past performance is 
    no guarantee of future results. 

<PAGE>
 
PAGE 2 
- --------------------------------- 
Keystone Omega Fund 

  In addition, the stocks we select for Keystone Omega Fund must meet our 
requirements for accelerating earnings, attractive valuations and low debt 
levels. As a result, the portfolio's holdings included a variety of small-, 
mid- and large-cap stocks. We believe this diversification by company size 
has the potential to smooth out price fluctuations as different sectors of 
the market rise and fall over time. We believe it has also contributed to the 
Fund's attractive long-term performance. 

Looking Ahead 

The favorable economic fundamentals of 1995--slow growth, low interest rates 
and low inflation--should remain intact as we enter 1996. We anticipate that 
this favorable environment should continue to be positive for stocks, but we 
would not be surprised if some companies reported more modest earnings in 
1996. If the market does experience a normal correction, we would view it as 
an opportunity to invest in selected stocks at lower prices. Overall, we 
continue to believe that the outlook remains healthy for stocks, although we 
believe returns for 1996 may be lower than those experienced in 1995. 

  After a year of strong performance, short-term expectations often rise. We 
encourage you to maintain a long-term perspective on the performance of 
Keystone Omega Fund and view it as a means of pursuing your long-term 
financial goals. Thank you for your continued support of Keystone Omega Fund. 
If you have any questions about your Keystone investment, please feel free to 
write to us. 

Sincerely, 

                       [photos of Albert H. Elfner, III and George S. Bissell] 

/s/Albert H. Elfner, III 
Albert H. Elfner, III 
Chairman and President 
Keystone Investments, Inc. 

/s/George S. Bissell 
George S. Bissell 
Chairman of the Board 
Keystone Funds 

February 1996 

<PAGE>
 
Page 3 
- --------------------------------- 

                              A Discussion With 
                              Your Fund Manager 

                       [photo of Maureen E. Cullinane] 

   Maureen E. Cullinane is senior portfolio manager of your Fund and leads 
  Keystone's growth stock team. A Chartered Financial Analyst, Ms. Cullinane 
  has over 20 years of investment experience. She received BA and MA degrees 
  from Emmanuel College with post-graduate study at the Universite de Paris. 
  She holds an MBA from Boston University. Together with Margery C. Parker, 
 portfolio manager of Keystone Mid-Cap Growth Fund (S-3), the team focuses on 
                  selecting companies with growing earnings. 

Q How did market conditions in 1995 affect the Fund? 

A 1995 was a very good year for the stock market. The Dow Jones Industrial 
Average passed two major milestones during the year, breaking 4000 in 
February and 5000 in November. While we were positioned conservatively at the 
beginning of the year, our strategy of investing in a combination of 
productivity enhancement and stable growth stocks paid off. We sold our oil 
holdings early in the year and reinvested the profits in technology stocks. 
This worked out well, in our opinion, because technology companies led the 
market rally for most of the year. Toward the end of the year we pared back 
our technology holdings and increased our exposure to finance and 
healthcare-related stocks. Both of these sectors produced strong fourth 
quarter returns. We also benefited from diversification among small-, mid- 
and large-capitalization stocks, because each of those sectors surged at 
different times during the year. 

Q What percentage of the Fund's holdings were invested in technology stocks? 

A We were well-represented in technology stocks because they fit our theme of 
productivity enhancement. The percentage of technology holdings varied 
throughout the year, from a high of about 33% to a low of 20% of net assets. 
As of year-end, technology-related companies comprised 25% of net assets. 
During the first part of the year holdings included a full range of 
telecommunications, software and electronics companies. Late in 1995, we took 
some profits when we felt that stock prices fully reflected earnings growth. 
Toward year-end, we scaled back on electronics manufacturing companies and 
increased our emphasis on software companies. Going forward, we believe 
technology stock prices may experience periodic corrections, but we think 
they should continue to provide strong growth opportunities. 

Fund Profile 

Objective: Seeks maximum capital growth from common stocks. 
Number of stocks: 71 
Net assets: $221 million 
Commencement of investment operations: February 8, 1968 
Newspaper listing: Omeg 

<PAGE>
 
PAGE 4 
- --------------------------------- 
Keystone Omega Fund 

The Omega Investment Discipline 
Management carefully selects growth stocks which meet 
Omega's specific investment criteria: 
(bullet) Earnings growth rates which exceed the S&P 500 
(bullet) Strong management 
(bullet) Industry leadership 
(bullet) New products or services that are believed to provide a competitive 
         advantage 

Q Parametric Technology was the Fund's largest software holding. How does it 
fit in with the productivity enhancement theme? 

A Parametric Technology develops software products to automate the industrial 
design process. Parametric's CAD/CAM system allows automotive or aeronautical 
engineers to design new cars or planes on the computer rather than building 
expensive mockups of new product designs. This enables companies to design 
products more quickly and cost-effectively. While we have reduced our 
holdings somewhat since the end of the period, Parametric Technology was an 
important contributor to the Fund's positive performance during the 
twelve-month period. 

Q What about the Fund's health care holdings? 

A Regardless of economic conditions, people still need basic services, 
particularly medical services. Healthcare and pharmaceutical stocks accounted 
for about 20% of net assets. Medaphis, the Fund's fifth-largest holding, 
provides management services for physicians' offices, including billing and 
insurance administration. St. Jude Medical, the third-largest holding, is a 
leader in cardiovascular devices primarily heart valves and pacemakers. The 
Fund's top two holdings are the pharmaceutical companies SmithKline Beecham 
and Warner Lambert. We think these holdings contributed to our stable growth 
theme. 

Q What are some other examples of stable growth holdings? 

A Other stable growth holdings included CUC International which provides 
consumers with discounted travel and restaurant dining, and Thermo Electron, 
whose diversified subsidiaries have contributed to a steady 17% growth over 
the past five years. We also owned shares of Gillette, a leading provider of 
personal care products, and the new offering of Estee Lauder. We believe that 
Estee Lauder's strong marketing and distribution network position it well for 
growth both domestically and abroad. 

Q What other types of industries are represented in the portfolio? 

A We held several finance-related companies which benefited from declining 
interest rates and industry consolidation. Bank holdings included Bank of 
Boston, which announced its intention to acquire BayBanks, and BankAmerica. 
We also owned Progressive Corp. of 

Top 5 Industries 
as of December 31, 1995  

                         Percentage of 
Industry                 net assets 
 --------------------------------------- 
Drugs                         13.4 
 --------------------------------------- 
Software services              9.8 
 --------------------------------------- 
Finance                        9.1 
 --------------------------------------- 
Health care                    7.4 
 --------------------------------------- 
Telecommunications             6.2 
 --------------------------------------- 

<PAGE>
 
PAGE 5 
- --------------------------------- 

Ohio, an automobile insurance company and MBIA, an insurer of municipal 
bonds. 

Q What is your outlook for 1996? 

A Our outlook remains cautiously optimistic. We believe moderate economic 
growth, low inflation and relatively strong corporate earnings should create 
an attractive environment for the growth stocks. We think stock prices may 
rise over the next six to twelve months, but we do not expect them to 
duplicate the impressive gains they made in 1995. We are also alert to the 
possibility of earnings disappointments, which could have a negative impact 
on selected stocks. In addition, concerns about the federal budget and the 
political rhetoric of an election year may have an effect on market 
conditions. Nevertheless, we believe your Fund's flexible investment approach 
and its emphasis on companies with above-average growth rates give it the 
potential to generate above-average returns over the long term. 

Top 10 Stock Holdings 
as of December 31, 1995

                                                    Percentage of
Company                          Industry           net assets
- ------------------------------------------------------------------
Warner Lambert                   Drugs                  3.5 
- ------------------------------------------------------------------
SmithKline Beecham               Drugs                  3.0 
- ------------------------------------------------------------------
St. Jude Medical                 Health care            2.9 
- ------------------------------------------------------------------
Parametric Technology            Software services      2.6 
- ------------------------------------------------------------------
Medaphis                         Health care            2.3 
- ------------------------------------------------------------------
Gilead Sciences                  Drugs                  2.1 
- ------------------------------------------------------------------
Gillette                         Consumer goods         2.0 
- ------------------------------------------------------------------
Winstar Communication            Telecommunications     2.0 
- ------------------------------------------------------------------
Apple South                      Restaurants            1.9 
- ------------------------------------------------------------------
Potash Corp. of Saskatchewan     Chemicals              1.9 
- ------------------------------------------------------------------

                                  [diamond] 

                      This column is intended to answer 
              questions about your Fund. If you have a question 
                  you would like answered, please write to: 
         Keystone Investments, Inc. Attn: Shareholder Communications 
                       200 Berkeley Street, 22nd Floor, 
                       Boston, Massachusetts 02116-5034 

<PAGE>
 
PAGE 6 
- --------------------------------- 
Keystone Omega Fund 

Your Fund's Performance 

[typeset representation of mountain chart]

Growth of an investment in 
Keystone Omega Fund Class A 

In Thousands

         Initial      Reinvested
        Investment   Distributions
12/85      9425           9425
           8971          10563    
12/87      8064          11437    
           9118          13044    
12/89     10700          17354    
           8925          16941    
12/91     11802          26173    
          10573          27221    
12/93     11421          32482    
          10373          30643    
12/95     13057          41963    

A $10,000 investment in Keystone Omega Fund Class A made on December 31, 1985 
with all distributions reinvested was worth $41,963 on December 31, 1995. 
Past performance is no guarantee of future results. 

[end mountain chart]

Twelve-Month Performance                              as of December 31, 1995 
- ---------------------------------------------------------------------------- 
                                Class A       Class B       Class C 
Total returns*                    36.94%        35.70%         35.62% 
Net asset value 12/31/94         $15.54        $15.34         $15.37 
                12/31/95         $19.56        $19.10         $19.13 
Dividends                          None          None           None 
Capital gains                    $ 1.56        $ 1.56         $ 1.56 

* Before deduction of front-end or contingent deferred sales charge (CDSC). 

Historical Record                                      as of December 31, 1995 
- ------------------------------------------------------------------------ 
Cumulative Total Returns        Class A        Class B        Class C 
1-year w/o sales charge          36.94%         35.70%         35.62% 
1-year                           29.07%         31.70%         35.62% 
5-year                          133.46%            --             -- 
10-year                         319.63%            --             -- 
Life of Class                       --          35.21%         38.39% 
Average annual returns 
1-year w/o sales charge          36.94%         35.70%         35.62% 
1-year                           29.07%         31.70%         35.62% 
5-year                           18.48%            --             -- 
10-year                          15.42%            --             -- 
Life of Class                       --          13.31%         14.41% 

  Class A share performance is reported at the current maximum front-end sales 
charge of 5.75%. 

  Class B shares were initially offered on August 2, 1993. Shares purchased 
after June 1, 1995 are subject to a contingent deferred sales charge (CDSC) 
that declines from 5% to 1% over six years from the month purchased. 
Performance assumes that shares were redeemed after the end of a one-year 
holding period and reflects the deduction of a 4% CDSC. 

  Class C shares were initially offered on August 2, 1993. Performance 
reflects the return you would have received for holding shares for one year 
and redeeming after the end of the period. 

  The investment return and principal value will fluctuate so that your 
shares, when redeemed, may be worth more or less than the original cost. 
Performance for each class will differ. 

  You may exchange your shares for another Keystone fund by phone or in 
writing for a $10 fee. The exchange fee is waived for individual investors 
who make an exchange using Keystone's Automated Response Line (KARL). The 
Fund reserves the right to change or terminate the exchange offer. 

<PAGE>
 
PAGE 7 
- --------------------------------- 

Growth of an Investment 

[typeset representation of line chart]

Comparison of change in value of a $10,000 investment in Keystone Omega Fund, 
Class A, the Standard & Poor's 500 Index and the Consumer Price Index. 

In thousands                     December 31, 1985 through December 31, 1995

Fund Average Total Return 
 ------------------------------------------------------- 
                   1 Year        5 Year        10 Year 
Class A           29.07%        18.48%         15.42% 
Class B           31.70%           --          13.31%* 
Class C           35.62%           --          14.41%* 

          Class A         S&P 500           CPI

12/85       9425           10000           10000          
           10563           11831           10110          
12/87      11437           12439           10558          
           13044           14493           11025          
12/89      17354           19012           11537          
           16941           18386           12241          
12/91      26173           23998           12617          
           27221           25832           12983          
12/93      32482           28436           13339          
           30643           28813           13696          
12/95      41963           39640           14053          

Past performance is no guarantee of future results. The performance of Class B
or Class C shares will be greater or less than the line shown based on
differences in loads and fees paid by the shareholder investing in the
different classes. *Class B and Class C shares were introduced August 2, 1993;
performance is for life of Class. The Consumer Price Index is through November
30, 1995.

[end line chart]

  This chart graphically compares your Fund's total return performance to 
certain investment indexes. It is the result of fund performance guidelines 
issued by the Securities and Exchange Commission. The intent is to provide 
investors with more information about their investment. 

Components of the Chart 

The chart is composed of several lines that represent the accumulated value 
of an initial $10,000 investment for the period indicated. The lines 
illustrate a hypothetical investment in: 

1. Keystone Omega Fund Class A 

The Fund seeks maximum capital growth from common stocks. The return is 
quoted after deducting sales charges (if applicable), fund expenses and 
transaction costs and assumes reinvestment of all distributions. 

2. Standard & Poor's 500 Index (S&P 500) 

The S&P 500 is a broad-based unmanaged index of common stock prices. It is 
comprised of stocks of the largest U.S. companies. These stocks are selected 
and compiled by Standard & Poor's Corporation according to criteria that may 
be unrelated to your Fund's investment objective. 

3. Consumer Price Index (CPI) 

This index is a widely recognized measure of the cost of goods and services 
produced in the U.S. The index contains factors such as prices of services, 
housing, food, transportation and electricity which are compiled by the U.S. 
Bureau of Labor Statistics. The CPI is generally considered a valuable 
benchmark for investors who seek to outperform increases in the cost of 
living. 

  These indexes do not include transaction costs associated with buying and 
selling securities, and do not hold cash to meet redemptions. It would be 
difficult for most individual investors to duplicate these indexes. 

Understanding What the Chart Means 

The chart demonstrates your Fund's total return performance in relation to a 
well known investment index and to increases in the cost of living. It is 
important to understand what the chart shows and does not show. 

  This illustration is useful because it charts Fund and index performance 
over the same time frame and over a long period. Long-term performance is a 
more reliable and useful measure of performance than measurements of 
short-term returns or temporary swings in the market. Your financial adviser 
can help you evaluate fund performance in conjunction with the 

 
PAGE 8 
- --------------------------------- 
Keystone Omega Fund 

other important financial considerations such as safety, stability and 
consistency. 

Limitations of the Chart 

The chart, however, limits the evaluation of Fund performance in several 
ways. Because the measurement is based on total returns over an extended 
period of time, the comparison often favors those funds which emphasize 
capital appreciation when the market is rising. Likewise, when the market is 
declining, the comparison usually favors those funds which take less risk. 

Performance Can Be Distorted 

Funds which are more conservative in their orientation and which place an 
emphasis on capital preservation will tend to compare less favorably when the 
market is rising. In addition, funds which have income as one of their 
objectives also will tend to compare less favorably to relevant indexes. 
Indexes may also reflect the performance of some securities which a fund may 
be prohibited from buying. A bond fund, for example, may be limited to 
investments in only high quality bonds, or a stock fund may only be able to 
buy stocks that have been traded on a stock exchange for a minimum number of 
years or of a certain company size. Indexes usually do not have the same 
investment restrictions as your Fund. 

Indexes Do Not Include Costs of Investing 

The comparison is further limited in its utility because the index does not 
take into account any deductions for sales charges, transaction costs or 
other fund expenses. Your Fund's performance figures do reflect such 
deductions. Sales charges--whether up-front or deferred--pay for the cost of 
the investment advice of your financial adviser. Transaction costs pay for 
the costs of buying and selling securities for your Fund's portfolio. Fund 
expenses pay for the costs of investment management and various shareholder 
services. None of these costs are reflected in index total returns. The 
comparison is not completely realistic because an index cannot be duplicated 
by an investor--even an unmanaged index--without incurring some charges and 
expenses. 

One of Several Measures 

The chart is one of several tools you can use to understand your investment. 
It should be read in conjunction with the Fund's prospectus, and annual and 
semiannual reports. Also, your financial adviser, who understands your 
personal financial situation, can best explain the features of your Keystone 
fund and how it applies to your financial needs. 

Future Returns May Be Different 

Shareholders also should be mindful that the long-run performance of either 
the Fund or the indexes is not representative of what shareholders should 
expect to receive from their Fund investment in the future; it is presented 
to illustrate only past performance and is not a guarantee of future returns. 

<PAGE>
 
PAGE 9 
- --------------------------------- 

                                 Glossary of 
                              Mutual Fund Terms 

  MUTUAL FUND--A company which combines the investment money of many people 
whose financial goals are similar, and invests that money in a variety of 
securities. A mutual fund allows the smaller investor the benefits of 
diversification, professional management and constant supervision usually 
available only to large investors. 

  PORTFOLIO MANAGER--An investment professional who is responsible for 
managing a portfolio's assets prudently and making appropriate investment 
decisions, such as which securities to buy, hold and sell, based on the 
investment objectives of the portfolio. 

  STOCK--Equity or ownership interest in a corporation, which represents a 
claim on the corporation's assets and earnings. 

  BOND--Security issued by a government or corporation to those from whom it 
has borrowed money. A bond usually promises to pay interest income to the 
bondholder at regular intervals and to repay the entire amount borrowed at 
maturity date. 

  CONVERTIBLE SECURITY--A corporate security (usually preferred stock or 
bonds) that is exchangeable for a set number of another security type 
(usually common stocks) at a pre-stated price. 

  MONEY MARKET FUND--A mutual fund whose assets are invested in a diversified 
portfolio of short-term securities, including commercial paper, bankers' 
acceptances, certificates of deposit and other short-term instruments. The 
fund pays income which can fluctuate daily. Liquidity and safety of principal 
are primary objectives. 

  NET ASSET VALUE (NAV) PER SHARE--The value of one share of a mutual fund. 
The NAV per share is determined by subtracting a fund's total liabilities 
from its total assets, and dividing that amount by the number of fund shares 
outstanding. 

  DIVIDEND--A per share distribution of the income earned from the fund's 
portfolio holdings. When a dividend distribution is made, the fund's net 
asset value drops by the amount of the distribution because the distribution 
is no longer considered part of the fund's assets. 

  CAPITAL GAIN--The profit from the sale of securities, less any losses. 
Capital gains are paid to fund shareholders on a per share basis. When a 
capital gain distribution is made, the fund's net asset value drops by the 
amount of the distribution because the distribution is no longer considered 
part of the fund's assets. 

  YIELD--The annualized rate of income as measured against the current net 
asset value of fund shares. 

  TOTAL RETURN--The change in value of a fund investment over a specified 
period of time, taking into account the change in a fund's market price and 
the reinvestment of all fund distributions. 

  SHORT-TERM--An investment with a maturity of one year or less. 

  LONG-TERM--An investment with a maturity of greater than one year. 

  AVERAGE MATURITY--The average number of days until the notes, drafts, 
acceptances, bonds or other debt instruments in a portfolio become due and 
payable. 

  OFFERING PRICE--The offering price of a share of a mutual fund is the price 
at which the share is sold to the public. 

<PAGE>
 
PAGE 10 
- --------------------------------- 
Keystone Omega Fund 

SCHEDULE OF INVESTMENTS--December 31, 1995 

                                                       Number           Market 
                                                    of Shares            Value 
==============================================================================
COMMON STOCKS (97.1%) 
ADVERTISING & PUBLISHING (1.6%) 
  Clear Channel Communications, Inc. (a)             80,000       $ 3,530,000 
- ------------------------------------------------------------------------------ 
AEROSPACE (1.8%) 
  Boeing Co.                                         51,100         4,004,963 
- ------------------------------------------------------------------------------ 
AMUSEMENTS (2.5%) 
  HFS Inc. (a)                                       35,000         2,861,250 
  La Quinta Inns, Inc.                              100,000         2,737,500 
- ------------------------------------------------------------------------------ 
                                                                    5,598,750 
- ------------------------------------------------------------------------------ 
BUILDING MATERIALS (2.9%) 
  Mohawk Industries, Inc. (a)                       240,000         3,675,000 
  Sherwin-Williams Co.                               65,000         2,648,750 
- ------------------------------------------------------------------------------ 
                                                                    6,323,750 
- ------------------------------------------------------------------------------ 
BUSINESS SERVICES (5.8%) 
  Molten Metal Technology, Inc. (a)                  76,500         2,495,813 
  Peak Technologies Group, Inc. (a)                  89,500         2,774,500 
  Thermo Electron Corp. (a)                          80,000         4,160,000 
  US Filter Corp. (a)                               130,000         3,461,250 
- ------------------------------------------------------------------------------ 
                                                                   12,891,563 
- ------------------------------------------------------------------------------ 
CAPITAL GOODS (4.3%) 
  AGCO Corp.                                         56,800         2,896,800 
  General Electric Co.                               50,000         3,600,000 
  Idex Corp.                                         75,000         3,056,250 
- ------------------------------------------------------------------------------ 
                                                                    9,553,050 
- ------------------------------------------------------------------------------ 
CHEMICALS (2.5%) 
  Potash Corp. of Saskatchewan, Inc.                 60,000         4,252,500 
  Praxair, Inc.                                      41,600         1,398,800 
- ------------------------------------------------------------------------------ 
                                                                    5,651,300 
- ------------------------------------------------------------------------------ 
CONSUMER GOODS (4.8%) 
  CUC International, Inc. (a)                       100,000         3,412,500 
  Gillette Co. (The)                                 85,000         4,430,625 
  Estee Lauder Companies, Inc. (The) (a)             78,500         2,737,688 
- ------------------------------------------------------------------------------ 
                                                                   10,580,813 
- ------------------------------------------------------------------------------ 
DRUGS (13.4%) 
  Agouron Pharmaceuticals, Inc. (a)                  43,900         1,454,188 
  Amylin Pharmaceuticals, Inc. (a)                  100,000           937,500 
  Centocor, Inc. (a)                                  9,300       $   288,300 
  Genzyme Corp. (a)                                  40,000         2,490,000 
  Gilead Sciences, Inc. (a)                         142,300         4,589,175 
  Human Genome Sciences, Inc. (a)                    43,400         1,654,625 
  Merck & Co., Inc.                                  55,000         3,616,250 
  SmithKline Beecham PLC, ADR                       120,000         6,660,000 
  Warner-Lambert Co.                                 80,000         7,770,000 
- ------------------------------------------------------------------------------ 
                                                                   29,460,038 
- ------------------------------------------------------------------------------ 
ELECTRONICS PRODUCTS (5.7%) 
  Analog Devices, Inc. (a)                           55,000         1,945,625 
  Maxim Integrated Products, Inc. (a)                86,600         3,334,100 
  Microchip Technology, Inc. (a)                     63,000         2,307,375 
  Solectron Corp. (a)                                50,000         2,206,250 
  Teradyne, Inc. (a)                                115,000         2,875,000 
- ------------------------------------------------------------------------------ 
                                                                   12,668,350 
- ------------------------------------------------------------------------------ 
FINANCE (9.1%) 
  BISYS Group, Inc. (The) (a)                        80,000         2,440,000 
  Bank of Boston Corp.                               32,000         1,480,000 
  BankAmerica Corp.                                  51,400         3,328,150 
  Fleet Financial Group, Inc.                        75,000         3,056,250 
  Greenpoint Financial Corp.                        110,700         2,947,388 
  Merrill Lynch & Co., Inc.                          32,500         1,657,500 
  Standard Federal Bancorporation, Inc.              75,000         2,953,125 
  Washington Mutual, Inc.                            80,600         2,317,250 
- ------------------------------------------------------------------------------ 
                                                                   20,179,663 
- ------------------------------------------------------------------------------ 
FOODS (1.2%) 
  Sara Lee Corp.                                     80,000         2,550,000 
- ------------------------------------------------------------------------------ 
HEALTH CARE (7.4%) 
  Boston Scientific Corp. (a)                        60,000         2,940,000 
  Idexx Labs Inc. (a)                                40,700         1,902,725 
  Medaphis Corp. (a)                                135,000         5,011,875 
  St. Jude Medical, Inc. (a)                        150,000         6,431,250 
- ------------------------------------------------------------------------------ 
                                                                   16,285,850 
- ------------------------------------------------------------------------------ 
INSURANCE (3.1%) 
  MBIA, Inc.                                         46,000         3,450,000 
  Progressive Corp.                                  50,000         2,443,750 
  UnionAmerica Holdings PLC, ADR (a)                 55,000           935,000 
- ------------------------------------------------------------------------------ 
                                                                    6,828,750 
- ------------------------------------------------------------------------------ 

<PAGE>
 
PAGE 11 
- --------------------------------- 


SCHEDULE OF INVESTMENTS--December 31, 1995 

                                                       Number           Market 
                                                    of Shares            Value 
==============================================================================
NATURAL GAS (4.7%) 
  Anadarko Petroleum Corp.                           65,000      $  3,518,125 
  Louisiana Land & Exploration Co.                   80,000         3,430,000 
  Nuevo Energy Corp. (a)                            150,000         3,356,250 
- ------------------------------------------------------------------------------ 
                                                                   10,304,375 
- ------------------------------------------------------------------------------ 
OFFICE & BUSINESS EQUIPMENT (1.1%) 
  Compaq Computer Corp. (a)                          50,300         2,414,400 
- ------------------------------------------------------------------------------ 
OIL (0.9%) 
  Mobil Corp.                                        17,300         1,937,600 
- ------------------------------------------------------------------------------ 
OIL SERVICES (3.0%) 
  ENSCO International, Inc. (a)                     150,000         3,450,000 
                                                    100,000         3,150,000 
                                                                    6,600,000 
- ------------------------------------------------------------------------------ 
RESTAURANTS (1.9%) 
  Apple South, Inc.                                 200,000         4,275,000 
- ------------------------------------------------------------------------------ 
RETAIL (3.4%)
  Barnes & Noble, Inc. (a)                          105,000         3,045,000 
  Staples, Inc. (a)                                 108,000         2,646,000 
  Sunglass Hut International, Inc. (a)               74,000         1,748,250 
- ------------------------------------------------------------------------------ 
                                                                    7,439,250 
- ------------------------------------------------------------------------------ 
SOFTWARE SERVICES (9.8%) 
  Adobe Systems, Inc.                                25,000         1,553,125 
  America On-Line, Inc. (a)                         100,000         3,731,250 
  BMC Software, Inc. (a)                             75,000         3,196,875 
  Davidson & Association, Inc. (a)                   45,500           989,625 
  Epic Design Technology, Inc. (a)                  105,200         2,209,200 
  Parametric Technology Corp. (a)                    85,600         5,681,700 
  Project Software & Development, Inc. (a)           44,800         1,570,800 
  System Software Associates, Inc.                  127,500         2,757,188 
- ------------------------------------------------------------------------------ 
                                                                   21,689,763 
- ------------------------------------------------------------------------------ 
TELECOMMUNICATIONS (6.2%) 
  Cisco Systems, Inc. (a)                            50,000         3,734,375 
  DSC Communications Corp. (a)                       42,400         1,568,800 
  Netmanage, Inc. (a)                               170,000         3,931,250 
  Winstar Communications, Inc. (a)                  250,000         4,328,122 
- ------------------------------------------------------------------------------ 
                                                                   13,562,547 
- ------------------------------------------------------------------------------ 
TOTAL COMMON STOCKS 
 (Cost--$175,947,514)                                             214,329,775 
- ------------------------------------------------------------------------------ 

                                                   Maturity 
                                                     Value 
==============================================================================
SHORT-TERM INVESTMENTS (2.4%) 
REPURCHASE AGREEMENTS (2.4%) 
Investments in repurchase agreements in a 
  joint trading account, purchased 12/29/95, 
  5.909%, maturing 01/02/96 (Cost 
  $5,367,000)(b)                                 $5,370,476         5,367,000 
==============================================================================
TOTAL INVESTMENTS 
   (Cost--$181,314,514) (c)                                       219,696,775 
OTHER ASSETS AND LIABILITIES (0.5%)                                   981,615 
==============================================================================
NET ASSETS (100.0%)                                              $220,678,390 
==============================================================================

NOTES TO SCHEDULE OF INVESTMENTS: 

(a) Non-income-producing security. 

(b) The repurchase agreements are fully collateralized by U.S. government 
    and/or agency obligations based on market prices at December 31, 1995. 

(c) The cost of investments for federal income tax purposes is $181,501,023. 
    Gross unrealized appreciation and depreciation of investments, based on 
    identified tax cost, at December 31, 1995 are as follows: 
         Gross unrealized appreciation          $40,815,344 
         Gross unrealized depreciation           (2,619,592) 
                                                ------------ 
         Net unrealized appreciation            $38,195,752 
                                                ============ 

See Notes to Financial Statements. 

<PAGE>
 
PAGE 12 
- --------------------------------- 
Keystone Omega Fund 

FINANCIAL HIGHLIGHTS--CLASS A SHARES 
(For a share outstanding throughout each year) 

<TABLE>
<CAPTION>
                                                             Year Ended December 31, 
                                          1995          1994          1993        1992(b)         1991 
===========================================================================================================
<S>                                     <C>           <C>           <C>           <C>            <C>
Net asset value beginning of year       $  15.54      $ 17.11       $ 15.84       $ 17.68        $ 13.37 
- -----------------------------------------------------------------------------------------------------------
Income from investment operations: 
Net investment income (loss)                0.00         0.04         (0.07)         0.00          (0.04) 
Net realized and unrealized gains 
  (losses) on investments                   5.58        (1.00)         3.07          0.39           6.92 
- -----------------------------------------------------------------------------------------------------------
Total from investment operations            5.58        (0.96)         3.00          0.39           6.88 
- -----------------------------------------------------------------------------------------------------------
Less distributions from: 
Net investment income                       0.00         0.00          0.00          0.00          (0.02) 
In excess of net investment income          0.00         0.00          0.00          0.00          (0.05) 
Capital gains                              (1.56)       (0.61)        (1.73)        (2.23)         (2.50) 
- -----------------------------------------------------------------------------------------------------------
Total distributions                        (1.56)       (0.61)        (1.73)        (2.23)         (2.57) 
- -----------------------------------------------------------------------------------------------------------
Net asset value end of year             $  19.56      $ 15.54       $ 17.11       $ 15.84        $ 17.68 
===========================================================================================================
Total return (a)                           36.94%       (5.66%)       19.33%         4.00%         54.49% 
Ratios/supplemental data 
Ratios to average net assets: 
 Total expenses                             1.38%(c)     1.41%         1.51%         1.52%          1.57% 
 Net investment income (loss)               0.00%        0.27%        (0.48%)       (0.01%)        (0.31%) 
Portfolio turnover rate                      159%         137%          162%          176%           115% 
- -----------------------------------------------------------------------------------------------------------
Net assets end of year (thousands)      $135,079      $99,569       $90,404       $73,144        $58,671 
===========================================================================================================
</TABLE>

<TABLE>
<CAPTION>
                                                             Year Ended December 31, 
                                          1990          1989          1988          1987          1986 
===========================================================================================================
<S>                                     <C>           <C>           <C>           <C>            <C>
Net asset value beginning of year       $ 16.03       $ 13.66       $ 12.08       $ 13.44        $ 14.12 
- -----------------------------------------------------------------------------------------------------------
Income from investment operations: 
Net investment income (loss)               0.11          0.17          0.30(d)       0.02           0.23 
Net realized and unrealized gains 
  (losses) on investments                 (0.39)         4.30          1.40          1.11           1.49 
- -----------------------------------------------------------------------------------------------------------
Total from investment operations          (0.28)         4.47          1.70          1.13           1.72 
- -----------------------------------------------------------------------------------------------------------
Less distributions from: 
Net investment income                     (0.25)        (0.20)        (0.12)        (0.24)         (0.28) 
In excess of net investment income        (0.04)         0.00          0.00          0.00           0.00 
Capital gains                             (2.09)        (1.90)         0.00         (2.25)         (2.12) 
- -----------------------------------------------------------------------------------------------------------
Total distributions                       (2.38)        (2.10)        (0.12)        (2.49)         (2.40) 
- -----------------------------------------------------------------------------------------------------------
Net asset value end of year             $ 13.37       $ 16.03       $ 13.66       $ 12.08        $ 13.44 
===========================================================================================================
Total return (a)                          (2.38%)       33.05%        14.05%         8.27%         12.07% 
Ratios/supplemental data 
Ratios to average net assets: 
 Total expenses                            1.73%         1.84%         1.78%         1.99%          1.47% 
 Net investment income (loss)              0.70%         1.03%         2.22%         0.13%          1.60% 
Portfolio turnover rate                     108%           77%           84%          106%           178% 
- -----------------------------------------------------------------------------------------------------------
Net assets end of year (thousands)      $38,531       $39,682       $33,951       $30,246        $31,812 
===========================================================================================================
</TABLE>

(a) Excluding applicable sales charges. 

(b) Calculated on average shares outstanding. 

(c) The annualized expense ratio includes indirectly paid expenses for the 
    year ended December 31, 1995. Excluding indirectly paid expenses, the 
    expense ratio would have been 1.37%. 

(d) Includes $0.17 per share relating to a special non-recurring distribution 
    from Inco Limited. 

See Notes to Financial Statements. 

<PAGE>
 
PAGE 13 
- --------------------------------- 

FINANCIAL HIGHLIGHTS--CLASS B SHARES 
(For a share outstanding throughout each year)See Notes to Financial Statements.

<TABLE>
<CAPTION>
                                                                                    August 2, 1993 
                                                                                   (Date of Initial 
                                                      Year Ended December 31,    Public Offering) to 
                                                        1995          1994        December 31, 1993 
=====================================================================================================
<S>                                                   <C>           <C>                 <C>
Net asset value beginning of year                     $ 15.34       $ 17.06             $17.29 
- -----------------------------------------------------------------------------------------------------
Income from investment operations: 
Net investment loss                                     (0.09)        (0.06)             (0.05) 
Net realized and unrealized gains (losses) on 
  investments                                            5.41         (1.05)              1.55 
- -----------------------------------------------------------------------------------------------------
Total from investment operations                         5.32         (1.11)              1.50 
- -----------------------------------------------------------------------------------------------------
Less distributions from: 
Capital gains                                           (1.56)        (0.61)             (1.73) 
- -----------------------------------------------------------------------------------------------------
Total distributions                                     (1.56)        (0.61)             (1.73) 
- -----------------------------------------------------------------------------------------------------
Net asset value end of year                           $ 19.10       $ 15.34             $17.06 
=====================================================================================================
Total return (b)                                        35.70%        (6.57%)             9.02% 
Ratios/supplemental data 
Ratios to average net assets: 
 Total expenses                                          2.29%(c)      2.30%              2.57%(a) 
 Net investment loss                                    (0.94%)       (0.58%)            (1.73%)(a) 
Portfolio turnover rate                                   159%          137%               162% 
- -----------------------------------------------------------------------------------------------------
Net assets end of year (thousands)                    $71,636       $32,266             $7,423 
=====================================================================================================
</TABLE>

(a) Annualized. 

(b) Excluding applicable sales charge. 

(c) The annualized expense ratio includes indirectly paid expenses for the 
    year ended December 31, 1995. Excluding indirectly paid expenses, the 
    expense ratio would have been 2.27%. 

<PAGE>
 
PAGE 14 
- --------------------------------- 
Keystone Omega Fund

FINANCIAL HIGHLIGHTS--CLASS C SHARES 
(For a share outstanding throughout each year)See Notes to Financial Statements.

<TABLE>
<CAPTION>
                                                                                    August 2, 1993 
                                                                                   (Date of Initial 
                                                      Year Ended December 31,    Public Offering) to 
                                                        1995          1994        December 31, 1993 
===================================================================================================== 
<S>                                                   <C>            <C>                <C>
Net asset value beginning of year                     $ 15.37        $17.09             $17.29 
- -----------------------------------------------------------------------------------------------------
Income from investment operations: 
Net investment loss                                     (0.13)        (0.07)             (0.06) 
Net realized and unrealized gains (losses) on 
  investments                                            5.45         (1.04)              1.59 
- -----------------------------------------------------------------------------------------------------
Total from investment operations                         5.32         (1.11)              1.53 
- -----------------------------------------------------------------------------------------------------
Less distributions from: 
Capital gains                                           (1.56)        (0.61)             (1.73) 
- -----------------------------------------------------------------------------------------------------
Total distributions                                     (1.56)        (0.61)             (1.73) 
- -----------------------------------------------------------------------------------------------------
Net asset value end of year                           $ 19.13        $15.37             $17.09 
===================================================================================================== 
Total return (b)                                        35.62%        (6.56%)             9.20% 
Ratios/supplemental data 
Ratios to average net assets: 
 Total expenses                                          2.30%(c)      2.30%              2.48%(a) 
 Net investment loss                                    (0.91%)       (0.63%)            (1.64%)(a) 
Portfolio turnover rate                                   159%          137%               162% 
- -----------------------------------------------------------------------------------------------------
Net assets end of year (thousands)                    $13,963        $9,900             $3,620 
===================================================================================================== 
</TABLE>

(a) Annualized. 

(b) Excluding applicable sales charges. 

(c) The annualized expense ratio includes indirectly paid expenses for the 
    year ended December 31, 1995. Excluding indirectly paid expenses, the 
    expense ratio would have been 2.29%. 

See Notes to Financial Statements. 

<PAGE>
 
PAGE 15 
- --------------------------------- 

STATEMENT OF ASSETS AND LIABILITIES 
December 31, 1995 

================================================================== 
Assets: 
 Investments at market value (identified 
    $181,314,514) (Note 1)                            $219,696,775 
 Cash                                                          134 
 Receivable for: 
  Fund shares sold                                         880,289 
  Investments sold                                       1,145,278 
  Dividends and interest                                   165,605 
 Prepaid expenses and other assets                          61,235 
- ------------------------------------------------------------------ 
   Total assets                                        221,949,316 
- ------------------------------------------------------------------ 
Liabilities: 
 Payable for: 
  Investments purchased                                  1,215,722 
  Fund shares redeemed                                      52,687 
 Other liabilities                                           2,517 
- ------------------------------------------------------------------ 
   Total liabilities                                     1,270,926 
- ------------------------------------------------------------------ 
Net assets                                            $220,678,390 
================================================================== 
Net assets represented by (Notes 1 and 3): 
 Paid-in-capital                                      $177,670,527 
 Accumulated net realized gain (loss) on 
  investment transactions                                4,625,602 
 Net unrealized appreciation (depreciation) on 
  investments and other assets and liabilities          38,382,261 
- ------------------------------------------------------------------ 
   Total net assets                                   $220,678,390 
================================================================== 
Net asset value per share (Notes 1 and 2): 
 Class A Shares 
  Net assets $135,078,994/6,907,644 shares 
     outstanding                                      $      19.56 
  Offering price per share ($19.56/0.9425) (based 
     on sales charge of 5.75% of the offering 
     price at December 31, 1995)                      $      20.75 
 Class B Shares 
  Net assets $71,635,998/3,751,051 shares 
     outstanding                                      $      19.10 
 Class C Shares 
  Net assets $13,963,398/730,073 shares 
     outstanding                                      $      19.13 
================================================================== 

STATEMENT OF OPERATIONS 
Year Ended December 31, 1995 

====================================================================
 Investment income (Note 1): 
  Dividends (net of foreign withholding 
    tax of $2,930)                                       $ 1,626,337 
  Interest                                                   695,345 
- -------------------------------------------------------------------- 
   Total income                                            2,321,682 
- -------------------------------------------------------------------- 
Expenses (Notes 2, 4, and 5): 
 Management fee                             $1,280,436 
 Shareholder services                          565,768 
 Accounting                                     15,027 
 Auditing and legal                             36,881 
 Custodian fees                                103,716 
 Printing                                       24,434 
 Trustees' fees and expenses                     7,179 
 Distribution Plan expenses                    745,640 
 Registration fees                              82,006 
 Miscellaneous expenses                         32,192 
- -------------------------------------------------------------------- 
   Total expenses                            2,893,279 
 Less: Expenses paid indirectly (Note 4)       (22,735) 
- -------------------------------------------------------------------- 
 Net expenses                                              2,870,544 
- -------------------------------------------------------------------- 
 Net investment income                                      (548,862) 
- -------------------------------------------------------------------- 
Net Realized and unrealized gain (loss) 
  on investments (Notes 1 and 3): 
 Net realized gain on investments                         24,020,841 
 Net change in unrealized appreciation 
  or depreciation on investments                          30,134,778 
- -------------------------------------------------------------------- 
 Net gain on investments                                  54,155,619 
- -------------------------------------------------------------------- 
 Net increase in net assets resulting 
    from operations                                      $53,606,757 
==================================================================== 

See Notes to Financial Statements. 

<PAGE>
 
PAGE 16 
- --------------------------------- 
Keystone Omega Fund 

STATEMENTS OF CHANGES IN NET ASSETS 

<TABLE>
<CAPTION>
                                                                         Year Ended December 31, 
                                                                           1995           1994 
===================================================================================================
<S>                                                                   <C>             <C>
Operations: 
Net investment income (loss)                                         ($    548,862)   $     79,708 
Net realized gain (loss) on investments                                 24,020,841      (2,218,472) 
Net change in unrealized appreciation or depreciation on 
  investments                                                           30,134,778      (4,649,148) 
- ---------------------------------------------------------------------------------------------------
  Net increase (decrease) in net assets resulting from operations       53,606,757      (6,787,912) 
- ---------------------------------------------------------------------------------------------------
Distributions to shareholders from (Notes 1 and 5): 
Net realized gain on investment transactions: 
 Class A Shares                                                         (9,531,332)     (3,782,055) 
 Class B Shares                                                         (4,676,811)       (984,992) 
 Class C Shares                                                           (973,850)       (322,709) 
- ---------------------------------------------------------------------------------------------------
  Total distributions to shareholders                                  (15,181,993)     (5,089,756) 
- ---------------------------------------------------------------------------------------------------
Capital share transactions (Note 2): 
Proceeds from shares sold: 
 Class A Shares                                                         21,425,010      25,532,191 
 Class B Shares                                                         33,563,718      30,415,780 
 Class C Shares                                                          4,723,834       8,044,614 
Payments for shares redeemed: 
 Class A Shares                                                        (20,370,219)    (10,802,653) 
 Class B Shares                                                         (8,682,058)     (4,383,078) 
 Class C Shares                                                         (4,086,346)     (1,273,016) 
Net asset value of shares issued in reinvestment of dividends and 
   distributions: 
 Class A Shares                                                          8,685,153       3,419,022 
 Class B Shares                                                          4,332,038         909,009 
 Class C Shares                                                            927,300         303,801 
- ---------------------------------------------------------------------------------------------------
 Net increase in net assets resulting from capital share 
  transactions                                                          40,518,430      52,165,670 
- ---------------------------------------------------------------------------------------------------
  Total increase in net assets                                          78,943,194      40,288,002 
- ---------------------------------------------------------------------------------------------------
Net assets: 
Beginning of year                                                      141,735,196     101,447,194 
- ---------------------------------------------------------------------------------------------------
End of year                                                           $220,678,390    $141,735,196 
===================================================================================================
</TABLE>

See Notes to Financial Statements. 

<PAGE>
 
PAGE 17 
- --------------------------------- 

NOTES TO FINANCIAL STATEMENTS 

(1.) Significant Accounting Principles 

Keystone Omega Fund (formerly Keystone America Omega Fund, Inc.) (the "Fund") 
is an open-end diversified management investment company incorporated in 
Massachusetts on February 8, 1968. Keystone Management, Inc. ("KMI") is the 
Investment Manager and Keystone Investment Management Company (formerly 
Keystone Custodian Funds, Inc.) ("Keystone") is the Investment Adviser. It is 
registered under the Investment Company Act of 1940 as a diversified open-end 
management investment company. The Fund seeks maximum capital growth by 
investing in a varied portfolio consisting primarily of common stocks and 
securities convertible into common stocks. 

  The Fund currently issues three classes of shares. Class A shares are sold 
subject to a maximum sales charge of 5.75% payable at the time of purchase. 
Class B shares are sold subject to a contingent deferred sales charge which 
varies depending on when the shares were purchased and how long the shares 
have been held. Class C shares are sold subject to a contingent deferred 
sales charge payable upon redemption within one year after purchase. Class C 
shares are available only through dealers who have entered into special 
distribution agreements with Keystone Investment Distributors Company 
(formerly Keystone Distributors, Inc.) ("KIDC"), the Fund's principal 
underwriter. 

  Keystone is a wholly-owned subsidiary of Keystone Investments, Inc. 
(formerly Keystone Group, Inc.) ("KII"), a Delaware corporation. KII is 
privately owned by an investor group consisting of current and former members 
of management of Keystone. Keystone Management, Inc. ("KMI") is a 
wholly-owned subsidiary of Keystone. Keystone Investor Resource Center, Inc. 
("KIRC"), a wholly-owned subsidiary of Keystone, is the Fund's transfer 
agent. 

  The following is a summary of significant accounting policies consistently 
followed by the Fund in the preparation of its financial statements. The 
policies are in conformity with generally accepted accounting principles. 

A. Investments, including American Depository Receipts ("ADRs"), are usually 
valued at the closing sales price, or in the absence of sales and for 
over-the-counter securities, the mean of bid and asked quotations. Management 
values the following securities at prices it deems in good faith to be fair: 
(a) securities (including restricted securities) for which complete 
quotations are not readily available and (b) listed securities if, in the 
opinion of management, the last sales price does not reflect a current value, 
or if no sale occurred. ADRs, which are certificates representing shares of 
foreign securities deposited in domestic and foreign banks, are traded and 
valued in United States dollars. 

  Short-term investments which are purchased with maturities of sixty days or 
less are valued at amortized cost (original purchase cost as adjusted for 
amortization of premium or accretion of discount) which when combined with 
accrued interest approximates market. Short-term investments maturing in more 
than sixty days for which market quotations are readily available are valued 
at current market value. Short-term investments maturing in more than sixty 
days when purchased which are held on the sixtieth day prior to maturity are 
valued at amortized cost (market value on the sixtieth day adjusted for 
amortization of premium or accretion of discount) which when combined with 
accrued interest approximates market. 

B. Securities transactions are accounted for on the day after the trade date. 
Realized gains and losses are computed on the identified cost basis. Interest 
income 

<PAGE>
 
PAGE 18 
- --------------------------------- 
Keystone Omega Fund 

is recorded on the accrual basis and dividend income is recorded on the 
ex-dividend date. Distributions to the shareholders are recorded by the Fund 
at the close of business on the ex-dividend date. 

C. The Fund has qualified and intends to qualify in the future as a regulated 
investment company under the Internal Revenue Code of 1986, as amended 
("Internal Revenue Code"). Thus, the Fund is relieved of any federal income 
tax liability by distributing all of its net taxable investment income and 
net taxable capital gains, if any, to its shareholders. The Fund intends to 
avoid excise tax liability by making the required distributions under the 
Internal Revenue Code. 

D. When the Fund enters into a repurchase agreement (a purchase of securities 
whereby the seller agrees to repurchase the securities at a mutually agreed 
upon date and price) the repurchase price of the securities will generally 
equal the amount paid by the Fund plus a negotiated interest amount. The 
seller under the repurchase agreement will be required to provide securities 
("collateral") to the Fund whose value will be maintained at an amount not 
less than the repurchase price, and which generally will be maintained at 
101% of the repurchase price. The Fund monitors the value of collateral on a 
daily basis, and if the value of the collateral falls below required levels, 
the Fund intends to seek additional collateral from the seller or terminate 
the repurchase agreement. If the seller defaults, the Fund would suffer a 
loss to the extent that the proceeds from the sale of the underlying 
securities were less than the repurchase price. Any loss would be increased 
by any cost incurred on disposing of such securities. If bankruptcy 
proceedings are commenced against the seller under the repurchase agreement, 
the realization on the collateral may be delayed or limited. Repurchase 
agreements entered into by the Fund will be limited to transactions with 
dealers or domestic banks believed to present minimal credit risks, and the 
Fund will take constructive receipt of all securities underlying repurchase 
agreements until such agreements expire. 

  Pursuant to an exemptive order issued by the Securities and Exchange 
Commission, the Fund, along with certain other Keystone funds, may transfer 
uninvested cash balances into a joint trading account. These balances are 
invested in one or more repurchase agreements that are fully collateralized 
by U.S. Treasury and/or Federal Agency obligations. 

E. In connection with portfolio purchases and sales of securities denominated 
in a foreign currency, the Fund may enter into forward foreign currency 
exchange contracts ("contracts") to hedge certain foreign currency assets. 
Contracts are recorded at market value and marked-to-market daily. Realized 
gains and losses arising from such transactions are included in net realized 
gain (loss) on foreign currency related transactions. The Fund is subject to 
the credit risk that the other party will not complete the obligations of the 
contract. 

F. The Fund distributes net income to shareholders quarterly and net capital 
gains, if any, annually. Distributions are determined from taxable net 
investment income and net capital gains and can differ from book basis net 
investment income and net capital gains. 

  The significant differences between financial statement amounts available 
for distribution and distributions made in accordance with income tax 
regulations are due to the differing treatment of net operating losses and 
short-term capital gains for financial statement and federal income tax 
purposes. 

<PAGE>
 
PAGE 19 
- --------------------------------- 

(2.) Capital Share Transactions 

Two hundred million shares of the Fund with a par value of $1.00 are 
authorized for issuance. Transactions in shares of the Fund were as follows: 

                           Class A Shares 
- ---------------------------------------------- 
                       Year Ended December 31, 
                         1995          1994 
- ---------------------------------------------- 

Shares sold            1,178,460     1,577,169 
Shares redeemed       (1,161,391)     (668,733) 
Shares issued in 
  reinvestment of 
  dividends and 
  distributions          482,356       216,943 
- ---------------------------------------------- 
Net increase             499,425     1,125,379 
============================================== 

                          Class B Shares 
- ---------------------------------------------- 
                       Year Ended December 31, 
                         1995          1994 
- ---------------------------------------------- 
Shares sold            1,902,255     1,881,751 
Shares redeemed         (499,966)     (271,676) 
Shares issued in 
  reinvestment of 
  dividends and 
  distributions          245,291        58,195 
- ---------------------------------------------- 
Net increase           1,647,580     1,668,270 
============================================== 

                          Class C Shares 
- ---------------------------------------------- 
                       Year Ended December 31, 
                         1995          1994 
- ---------------------------------------------- 
Shares sold              273,387       493,899 
Shares redeemed         (240,110)      (80,825) 
Shares issued in 
  reinvestment of 
  dividends and 
  distributions           52,465        19,425 
- ---------------------------------------------- 
Net increase              85,742       432,499 
============================================== 

  The Fund bears some of the costs of selling its shares under Distribution 
Plans adopted with respect to its Class A, Class B and Class C shares 
pursuant to Rule 12b-1 under the Investment Company Act of 1940 ("1940 Act"). 

  The Class A Distribution Plan provides for payments which are currently 
limited to 0.25% annually of the average daily net asset value of Class A 
shares to pay expenses of the distribution of Class A shares. Amounts paid by 
the Fund to KIDC under the Class A Distribution Plan are currently used to 
pay others such as dealers, service fees at an annual rate of up to 0.25% of 
the average net asset value of the shares sold by such others and remaining 
outstanding on the books of the Fund for specified periods. 

  The Class B Distribution Plan provides payment at an annual rate of 1.00% of 
the average daily net asset value of Class B shares to pay expenses of the 
distribution of Class B shares. Amounts paid by the Fund under the Class B 
Distribution Plan are currently used to pay others (dealers) a commission at 
the time of purchase normally equal to 4.00% of the price paid for each Class 
B share sold plus the first year's service fee in advance in the amount of 
0.25% of the price paid for each Class B share sold. Beginning approximately 
12 months after the purchase of a Class B share, the dealer or other party 
will receive service fees at an annual rate of 0.25% of the average daily net 
asset value of such Class B shares maintained by such others and remaining 
outstanding on the Fund's books for specified periods. A contingent deferred 
sales charge will be imposed, if applicable, on Class B shares purchased on 
or after June 1, 1995 at rates ranging from a maximum of 5.00% of amounts 
redeemed during the first 12 months following the date of purchase to 1.00% 
of amounts redeemed during the sixth twelve month period following the date 

<PAGE>
 
PAGE 20 
- --------------------------------- 
Keystone Omega Fund 

of purchase. Class B shares purchased on or after June 1, 1995 that have been 
outstanding for eight years following the month of purchase will 
automatically convert to Class A shares without a front end sales charge or 
exchange fee. Class B shares purchased prior to June 1, 1995 will retain 
their existing conversion rights. 

  The Class C Distribution Plan provides for payments at an annual rate of up 
to 1.00% of the average daily net asset value of Class C shares to pay 
expenses for the distribution of Class C shares. Amounts paid by the Fund 
under the Class C Distribution Plan are currently used to pay others 
(dealers) a commission at the time of purchase in the amount of 0.75% of the 
price paid for each Class C share sold, plus the first year's service fee in 
advance in the amount of 0.25% of the price paid for each Class C share. 
Beginning approximately 15 months after purchase, the dealer or other party 
will receive a commission at an annual rate of 0.75% (subject to applicable 
limitations imposed by a rule of the National Association of Securities 
Dealers, Inc.) ("NASD Rule") plus service fees at the annual rate of 0.25%, 
of the average net asset value of each Class C share maintained by such 
others and remaining outstanding on the Fund's books for specified periods. 

  Each of the Distribution Plans may be terminated at any time by vote of the 
Independent Trustees or by vote of a majority of the outstanding voting 
shares of the respective class. However, after the termination of any 
Distribution Plan, at the discretion of the Board of Trustees, payments to 
KIDC may continue as compensation for its services which had been earned 
while the Distribution Plan was in effect. 

  For the year ended December 31, 1995, the Fund paid KIDC $152,234 under its 
Class A Distribution Plan. The Fund paid KIDC $422,149 for Class B shares 
sold prior to June 1, 1995, and $57,588 for Class B shares sold on or after 
June 1, 1995. The Fund paid KIDC $113,669 under its Class C Distribution 
Plan. 

  Under the NASD Rule, the maximum uncollected amounts for which KIDC may seek 
payment from the Fund under its Class B Distribution Plans $2,337,905 for 
Class B shares purchased prior to June 1, 1995, and $1,219,354 for Class B 
shares purchased on or after June 1, 1995. The maximum uncollected amounts 
for which KIDC may seek payment from the Fund under its Class C Distribution 
Plan $829,901 as of December 31, 1995. 

(3.) Securities Transactions 

Cost of purchases and proceeds from sales of investment securities excluding 
short-term securities, during the year ended December 31, 1995, were 
$297,238,175 and $253,812,150, respectively. 

(4.) Investment Management and Transactions with Affiliates 

Under the terms of the Investment Management Agreement between KMI and the 
Fund, KMI provides investment management and administrative services to the 
Fund. In return, KMI is paid a management fee computed and paid daily. The 
management fee is determined by applying percentage rates, starting at 0.75% 
and declining as net assets increase, to 0.50% per annum, to the net asset 
value of the Fund. KMI has entered into an Investment Advisory Agreement with 
Keystone, under which Keystone provides investment advisory and management 
services to the Fund and receives for its services an annual fee representing 
85% of the management fee received by KMI. During the year ended December 31, 
1995, the Fund paid or accrued to KMI investment management and adminis- 

<PAGE>
 
PAGE 21 
- --------------------------------- 

trative services fees of $1,280,436, which represented 0.75% of the Fund's 
average net assets on an annualized basis. Of such amounts paid to KMI, 
$1,088,371 was paid to Keystone for its services to the Fund. 

  During the year ended December 31, 1995, the Fund paid or accrued to KII 
$39,461 as reimbursement for the cost of accounting and printing services 
provided to the Fund and $565,768 was paid or accrued to KIRC for transfer 
agent fees. 

  The Fund is subject to certain state annual expense limits, the most 
restrictive of which is as follows: 2.5% of the first $30 million of the Fund 
average net assets and 2.0% the next $70 million of the Fund average net 
assets; and 1.5% of the Fund average net assets over $100 million. 

  Keystone has agreed to reimburse the Fund annually for certain operating 
expenses incurred by the Fund in excess of the applicable state expense 
limit. However, Keystone is not required to make such reimbursement to an 
extent which would result in the Fund's inability to qualify as a Regulated 
Investment Company and provisions of the Internal Revenue Code. 

  The Fund has entered into an expense offset arrangement with its custodian. 
For the year ended December 31, 1995, the Fund paid custody fees in the 
amount of $80,981 and received a credit of $22,735 pursuant to the expense 
offset arrangement, resulting in a total expense of $103,716. The assets 
deposited with the custodian under the expense offset arrangement could have 
been invested in income-producing assets. 

  Certain officers and/or Directors of Keystone are also officers and/or 
Trustees of the Fund. Officers of Keystone and affiliated Trustees receive no 
compensation directly from the Fund. Currently, the Independent Trustees 
receive no compensation for their service. 

(5.) Distributions to Shareholders 

The Fund intends to distribute to its shareholders dividends from net 
investment income, and all net taxable realized long-term capital gains, if 
any, annually. Any distribution which is declared in December and paid before 
the next February 1 will be taxable to shareholders in the year declared. 

(6.) Class Level Expenses 

Presently, the Fund's class-specific expenses are limited to expenses 
incurred by a class of shares pursuant to its respective Distribution Plan. 
For the year ended December 31, 1995, the total amount of expenses incurred 
by each class' Distribution Plan is set forth in Note (2.) "Capital Share 
Transactions." 

<PAGE>
 
PAGE 22 
- --------------------------------- 
Keystone Omega Fund 

================================================================================

Shareholder Meeting (Unaudited) 

A special Meeting of Shareholders was held on April 21, 1995. The following 
is a brief description of the matters which were submitted to shareholders, 
and certain information about how shareholders voted: 

  1. Proposal 1 was to approve the reorganization of the Fund as a 
Massachusetts business trust, pursuant to which the existing Board of 
Directors would become the Board of Trustees of the new entity, and the 
present investment manager and investment adviser to the Fund would remain 
the same. Action on this Proposal was postponed and the meeting adjourned 
until May 30, 1995. The May 30, 1995 meeting was postponed and adjourned 
until June 30, 1995, at which time the following vote was received and the 
proposal was approved. 

      FOR           AGAINST       ABSTAIN 
6,155,612.347    300,564.114    519,525.686 

  2. Proposal 2 was to select KPMG Peat Marwick LLP as the independent public 
accountant of the Fund for the 1995 fiscal year. 

      FOR          AGAINST       ABSTAIN 
6,159,296.725    95,860.769    334,863.015 

Federal Tax Status--Fiscal 1995 Distributions (Unaudited) 

The per-share distributions paid to you for fiscal 1995, whether taken in 
shares or cash, are as follows: 

                       Short-term   Long-term 
                       Gains        Gains       Totals 
- -----------------      ----------   ---------   ------ 
Class A shares         $0.86        $0.70       $1.56 
- -----------------      -----        -----       ----- 
Class B shares         $0.86        $0.70       $1.56 
- -----------------      -----        -----       ----- 
Class C shares         $0.86        $0.70       $1.56 
- -----------------      -----        -----       ----- 

<PAGE>
 
PAGE 23 
- --------------------------------- 

INDEPENDENT AUDITORS' REPORT 

The Trustees and Shareholders 
Keystone Omega Fund 

We have audited the accompanying statement of assets and liabilities of 
Keystone Omega Fund (formerly Keystone America Omega Fund, Inc.), including 
the schedule of investments, as of December 31, 1995, and the related 
statement of operations for the year then ended, the statements of changes in 
net assets for each of the years in the two-year period then ended, and the 
financial highlights for each of the years in the seven-year period ended 
December 31, 1995 for Class A shares and for each of the years in the 
two-year period ended December 31, 1995 and the period from August 2, 1993 
(Date of Initial Public Offering) to December 31, 1993 for Class B and Class 
C shares. These financial statements and financial highlights are the 
responsibility of the Fund's management. Our responsibility is to express an 
opinion on these financial statements and financial highlights based on our 
audits. The financial highlights for Class A Shares for each of the years in 
the three-year period ended December 31, 1988 were audited by other auditors 
whose report, dated February 3, 1989, expressed an unqualified opinion 
thereon. 

We conducted our audits in accordance with generally accepted auditing 
standards. Those standards require that we plan and perform the audit to 
obtain reasonable assurance about whether the financial statements and 
financial highlights are free of material misstatement. An audit includes 
examining, on a test basis, evidence supporting the amounts and disclosures 
in the financial statements. Our procedures included confirmation of 
securities owned as of December 31, 1995, by correspondence with the 
custodian and brokers. An audit also includes assessing the accounting 
principles used and significant estimates made by management, as well as 
evaluating the overall financial statement presentation. We believe that our 
audits provide a reasonable basis for our opinion. 

In our opinion, the financial statements and financial highlights referred to 
above present fairly, in all material respects, the financial position of 
Keystone Omega Fund as of December 31, 1995, the results of its operations 
for the year then ended, the changes in its net assets for each of the years 
in the two-year period then ended, and the financial highlights for each of 
the years or periods subsequent to 1988 specified in the first paragraph 
above in conformity with generally accepted accounting principles. 

                                                         KPMG Peat Marwick LLP 
Boston, Massachusetts 
January 23, 1996 


<PAGE>
 
             [COVER]

             KEYSTONE 

    [photo of blossoming tree] 

              OMEGA 
               FUND 

         [Keystone logo] 

          ANNUAL REPORT 
        DECEMBER 31, 1995 

           [BACK COVER]

         KEYSTONE AMERICA 
         FAMILY OF FUNDS 

            [diamond] 

    Capital Preservation and Income Fund 
         Government Securities Fund 
         Intermediate Term Bond Fund 
            Strategic Income Fund 
               World Bond Fund 
            Tax Free Income Fund 
      California Insured Tax Free Fund 
            Florida Tax Free Fund 
         Massachusetts Tax Free Fund 
           Missouri Tax Free Fund 
       New York Insured Tax Free Fund 
         Pennsylvania Tax Free Fund 
            Fund for Total Return 
          Global Opportunities Fund 
     Hartwell Emerging Growth Fund, Inc. 
                 Omega Fund 
            Fund of the Americas 
         Strategic Development Fund 

This report was prepared primarily for the information of the Fund's 
shareholders. It is authorized for distribution if preceded or accompanied by 
the Fund's current prospectus. The prospectus contains important information 
about the Fund including fees and expenses. Read it carefully before you 
invest or send money. For a free prospectus on other Keystone funds, contact 
your financial adviser or call Keystone. 

[Keystone logo] KEYSTONE 
                I N V E S T M E N T S 

                P.O. Box 2121 
                Boston, Massachusetts 02106-2121 

OFI-AR-2/96 
21M                                                            [recycle logo] 



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