NATIONWIDE FINANCIAL SERVICES INC /OH/
13F-HR, 1999-08-25
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<PAGE>   1
                                    FORM 13F

                INFORMATION REQUIRED OF INSTITUTIONAL INVESTMENT
              MANAGERS PURSUANT TO SECTION 13(f) OF THE SECURITIES
                    EXCHANGE ACT OF 1934 AND RULES THEREUNDER

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                    REPORT OF THE QUARTER ENDED JUNE 30, 1999

- --------------------------------------------------------------------------------
                (PLEASE READ INSTRUCTIONS BEFORE PREPARING FORM)
- --------------------------------------------------------------------------------

                         IF AMENDED REPORT, CHECK HERE:

Name of Institutional Investment Manager:
NATIONWIDE ADVISORY SERVICES, INC.
- --------------------------------------------------------------------------------

Business Address:
THREE NATIONWIDE PLAZA    COLUMBUS,         OH             43216
- --------------------------------------------------------------------------------
Street                    City              State           Zip

Name, Phone No., and Title of Person Duly Authorized to Submit This Report:

Christopher A. Cray - Treasurer                        (614) 677-2393
- --------------------------------------------------------------------------------

ATTENTION - International misstatements or ommissions of facts constitute
Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

- --------------------------------------------------------------------------------

        The institutional investment manager submitting this Form and its
attachments and the person by whom it is signed represent hereby that all
information contained therein is true, correct and complete. It is understood
that all required items, statements and schedules are considered integral parts
of this Form and that the submission of any amendment represents that all
unamended items, statements and schedules remain true, correct and complete as
previously-submitted.

         Pursuant to the requirements of Securities Exchange Act of 1934, the
undersigned institutional investment manager caused this report to be signed on
its behalf in the City of Columbus and the State of Ohio on the 24th day of May,
1999.

                                         NATIONWIDE ADVISORY SERVICES, INC.
                                      (Name of Institutional Investment Manager)

                                                        /s/ CHRISTOPHER A. CRAY
- --------------------------------------------------------------------------------
                                                 CHRISTOPHER A. CRAY - TREASURER
              (Manual signature of Person Duly Authorized to submit this Report)

Name and 13F file numbers of ALL Institutional Investment Managers with respect
to which this schedule is filed (other than the one filing this report)
(List in alphabetical order).

<TABLE>
Name:                       13F File No.:   Name:                     13F File No.:
<S>                         <C>             <C>                       <C>
1. __________________       _________        8.  _________________    ___________
2. __________________       _________        9.  _________________    ___________
3. __________________       _________       10.  _________________    ___________
4. __________________       _________       11.  _________________    ___________
5. __________________       _________       12.  _________________    ___________
6. __________________       _________       13.  _________________    ___________
7. __________________       _________       14.  _________________    ___________
</TABLE>

                        FORM CONTINUES ON FOLLOWING PAGE
<PAGE>   2

                              Form 13F SUMMARY PAGE


Report Summary:


Number of Other Included Mangers:                             16
                                              -----------------------------

Form 13F Information Table Entry Total:                      918
                                              -----------------------------

Form 13F Information Table Value Total:                $8,012,049
                                              -----------------------------
                                                       (thousands)

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F File number(s) of all
institutional investment mangers with respect to which this report is filed,
other than manager filing this report.

(If there are no entries in this list, state "NONE" and omit the column headings
and list entries.)

No.      Form 13F File Number        Name

01       28-2682                     Brinson Partners, Inc.

02       28-127                      The Dreyfus Corporation

03       28-5680                     Federated Investment Counseling

04       28-4689                     First Pacific Advisors, Inc.

05       28-3578                     Franklin Advisers, Inc.

06       28-687                      Goldman Sachs Asset Management

07       28-249                      INVESCO Management & Research, Inc.

08       28-1482                     J.P. Morgan Investment Management, Inc.

09       28-6558                     Lazard Asset Management

10       28-465                      Miller, Anderson & Sherrerd, LLP

11       28-454                      Neuberger & Berman Management, Inc.

12       28-1904                     Pilgrim Baxter & Associates Ltd.

13       28-925                      Rice Hall James & Associates

14       28-2568                     Salomon Brothers Asset Management

15       28-1202                     Strong Capital Management

16       28-496                      Warburg Pincus Asset Management, Inc.


<PAGE>   3
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:      ITEM 4:     ITEM 5:       ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE   V   OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
AAR Corp. -                               COM 000361105     1,733,325    76,400       X                  11              76,400
AGCO Corp. -                              COM 001084102       728,525    64,400       X                  02              64,400
AGL Resources, Inc. -                     COM 001204106       519,938    28,200       X                  11              28,200
ARM Financial Group, Inc.                 COM 001944107       515,100    60,600       X                  02              60,600
AT & T Corp. -                            COM 001957109     1,531,272    27,436       X              02 03 06 08         27,436
AVT Corp. -                               COM 002420107     2,007,375    53,000       X                 02 07            53,000
Abbott Laboratories -                     COM 002824100       751,045    17,045       X                                  17,045
Abbott Laboratories -                     COM 002824100       891,800    19,600       X               02 03 06           19,600
Abercrombie & Fitch -                     COM 002896207       291,840     6,080       X                 08 15             6,080
Acuson Corp* -                            COM 005113105       742,500    43,200       X                  11              43,200
Acxiom Corporation -                      COM 005125109       916,204    36,740       X                  16              36,740
ADAC Laboratories -                       COM 005313200       282,750    39,000       X                  11              39,000
Adelphia Communications Corp.             COM 006848105       203,600     3,200       X                 12 15             3,200
Advance Paradigm Inc.*                    COM 007491103     1,360,300    22,300       X                  16              22,300
Advanced Neuro Syst Inc.*                 COM 00757T101       617,500    65,000       X                  15              65,000
Advanced Energy Industries, Inc.          COM 007973100     2,308,006    56,900       X                 15 16            56,900
Advent Software, Inc -                    COM 007974108     1,018,400    15,200       X                                  15,200
Aetna, Inc. -                             COM 008117103       260,800     2,916       X               01 02 08            2,916
Affiliated Managers Group, Inc.           COM 008252108       616,580    20,425       X                 02 11            20,425
Alberto Culver Co. Class A                COM 013068200       814,406    35,700       X                  11              35,700
Albertson's Inc. -                        COM 013104104       356,279     6,910       X               02 03 08            6,910
Alcoa, Inc. -                             COM 013817101       365,269     5,775       X                                   5,775
Alcoa, Inc. -                             COM 013817101       161,123     2,604       X               02 06 08            2,604
Alkermes, Inc. -                          COM 01642T108       646,344    27,950       X                 11 16            27,950
Allergan Inc. -                           COM 018490102   182,338,590 1,732,600       X                               1,732,600
Allergan Inc. -                           COM 018490102       266,400     2,400       X              01 02 06 15          2,400
Alliance Semiconduct -                    COM 01877H100       406,444    40,900       X                  02              40,900
Alliant Techsystems, Inc.                 COM 018804104     2,145,200    24,800       X                 10 11            24,800
Allied-Signal Inc. -                      COM 019512102       298,053     4,731       X                 02 08             4,731
Allied Waste Inds., Inc.                  COM 019589308       535,225    27,100       X                  02              27,100
Allstate Corp. -                          COM 020002101   113,365,000 3,160,000       X                               3,160,000
Allstate Corp. -                          COM 020002101       989,325    27,577       X           02 03 06 08 14 15      27,577
Alltel Corp Com -                         COM 020039103    94,620,964 1,351,462       X                               1,351,462
Alltel Corp Com -                         COM 020039103       143,000     2,000       X                 02 06             2,000
Alpha Industries, Inc.                    COM 020753109       857,250    18,000       X                  15              18,000
Alza Corp Del -                           COM 022615108       519,129    10,204       X              01 02 08 13         10,204
Amerada Hess -                            COM 023551104       362,950     6,100       X                 02 14             6,100
America Online Inc. -                     COM 02364J104     1,132,625    10,250       X               02 06 08           10,250
American Classic Voyages Co.              COM 024928103     1,531,200    63,800       X                  15              63,800
American Eagle Outfitters                 COM 02553E106     1,717,625    37,750       X              07 11 12 15         37,750
American Express Co. -                    COM 025816109       407,812     3,134       X                 02 08             3,134
American Home Prod. -                     COM 026609107    47,262,326   881,000       X                                 881,000
American Home Products                    COM 026609107     1,977,425    34,390       X            02 03 06 08 14        34,390
American Intl Group -                     COM 026874107   103,389,444   927,176       X                                 927,176
American International Group              COM 026874107     1,289,443    11,015       X              02 06 08 14         11,015
American Power Conversion Corp.           COM 029066107       161,000     8,000       X                                   8,000
American Power Conversion Corp.           COM 029066107       150,938     7,500       X                  15               7,500
American Woodmark Corp.                   COM 030506109       867,150    24,600       X                  16              24,600
AmeriPath, Inc. -                         COM 03071D109       321,713    37,300       X                  02              37,300
                                                        -------------
                                         Column Total     576,696,509
</TABLE>


                                  Page 3 of 21
<PAGE>   4
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Ames Dept Stores, Inc.*                   COM 030789507     1,095,000    24,000       X                  15              24,000
Ameritech Corp. -                         COM 030954101       924,336    12,576       X               02 03 08           12,576
Amgen, Inc. -                             COM 031162100       346,744     5,696       X               02 06 08            5,696
Anadarko Pete Corp -                      COM 032511107    14,794,944   401,900       X                                 401,900
Anadarko Pete Corp -                      COM 032511107        29,450       800       X                  02                 800
Analysts Intl. Corp. -                    COM 032681108       493,063    34,300       X                  11              34,300
Andrx Corp. -                             COM 034551101     3,362,650    43,600       X               02 07 15           43,600
Anheuser-Busch Co. -                      COM 035229103    27,377,682   426,800       X                                 426,800
Anheuser-Busch Co. -                      COM 035229103       837,063    11,800       X               02 06 14           11,800
ANTEC Corp. * -                           COM 03664P105     1,721,356    52,900       X                 10 15            52,900
Aon Corp. -                               COM 037389103       203,775     4,940       X               01 02 08            4,940
Apple Computer, Inc. -                    COM 037833100       686,259    14,818       X            02 03 06 08 15        14,818
Applebee's International, Inc.            COM 037899101     1,747,250    58,000       X                 15 16            58,000
Applied Industrial -                      COM 03820C105       513,000    27,000       X                  02              27,000
Applied Materials In -                    COM 038222105       369,375     5,000       X               02 06 08            5,000
Applied Micro Circuits Corp.              COM 03822W109     4,186,525    50,900       X                 02 15            50,900
Aptargroup Inc. -                         COM 038336103     1,773,000    59,100       X                 07 11            59,100
Arch Chemicals, Inc. -                    COM 03937R102     1,132,963    46,600       X                  02              46,600
Archer Daniels Midland Co.                COM 039483102    20,388,785 1,320,731       X                               1,320,731
Archer Daniels Midland Co.                COM 039483102        61,364     3,975       X                  02               3,975
Ardent Software Inc -                     COM 039794102     1,015,750    47,800       X                  02              47,800
Arkansas Best Corp. -                     COM 040790107       578,363    58,200       X                  02              58,200
Armco, Inc. -                             COM 042170100       743,988   112,300       X                  02             112,300
Arrow Electronics -                       COM 042735100       618,450    32,550       X                 04 15            32,550
Arvin Industries Inc -                    COM 043339100       837,038    22,100       X                 02 07            22,100
At Home Corp. Series A                    COM 045919107       442,288     8,200       X                 06 15             8,200
Associates First Capital                  COM 046008108    94,857,036 2,295,488       X                               2,295,488
Associates First Capital                  COM 046008108       478,841    10,806       X                 02 08            10,806
Astec Industries, Inc.*                   COM 046224101       916,875    22,500       X                  15              22,500
Autodesk -                                COM 052769106     1,321,444    44,700       X                  02              44,700
Automatic Data Procssng Co.               COM 053015103    35,200,000   800,000       X                                 800,000
Automatic Data Procssng Co.               COM 053015103       220,000     5,000       X               02 06 08            5,000
Avant! Corp.* -                           COM 053487104       503,738    39,900       X                  16              39,900
Aviall Inc. -                             COM 05366B102     1,121,225    59,600       X                  11              59,600
Avid Technology, Inc -                    COM 05367P100       319,275    19,800       X                  02              19,800
Avnet, Inc. -                             COM 053807103       520,800    11,200       X                  15              11,200
Avon Products Inc. -                      COM 054303102    48,054,000   867,200       X                                 867,200
Avon Products, Inc. -                     COM 054303102       765,900    13,800       X                 02 14            13,800
Aware, Inc. -                             COM 05453N100       253,688     5,500       X                  15               5,500
BCE, Inc. -                               COM 05534B109       399,431     8,100       X                 06 14             8,100
BJ Services Co. -                         COM 055482103     1,828,069    62,100       X               02 15 16           62,100
BJ's Wholesale Club Inc.                  COM 05548J106       420,875    14,000       X                  15              14,000
BMC Industries Inc. Minnesota             COM 055607105       328,969    31,900       X                  11              31,900
BP Amoco PLC -                            COM 055622104       525,900     4,847       X               03 08 14            4,847
BMC Software Inc. -                       COM 055921100   106,083,000 1,964,500       X                               1,964,500
BMC Software Inc. -                       COM 055921100        91,908     1,702       X               02 06 08            1,702
Bank of America Corp.                     COM 060505104     2,863,953    39,065       X           02 03 06 08 14 15      39,065
Bank of NY Co., Inc. -                    COM 064057102    18,698,988   592,400       X                                 592,400
Bank of NY Co., Inc. -                    COM 064057102       187,106     5,100       X                  02               5,100
                                                        -------------
                                         Column Total     402,241,478
</TABLE>



                                  Page 4 of 21
<PAGE>   5
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Banc One Corp. -                          COM 06423A103   180,872,185 3,146,985       X                               3,146,985
Banc One Corp. -                          COM 06423A103       872,293    14,645       X               02 03 08           14,645
Bank United Corp. -                       COM 065412108       900,200    22,400       X                 05 1             22,400
BankBoston Corp. -                        COM 06605R106       385,687     7,544       X              01 02 08 15          7,544
Barr Laboratories, Inc.                   COM 068306109       518,375    13,000       X                  15              13,000
BARRA, Inc. -                             COM 068313105       709,525    28,100       X                  02              28,100
Bausch & Lomb Inc. -                      COM 071707103       574,056     7,504       X              02 06 08 14          7,504
Baxter International -                    COM 071813109       545,626     9,000       X                 01 02             9,000
Bay View Capital Corp.                    COM 07262L101       686,750    33,500       X                  02              33,500
Bear Stearns Co.,Inc -                    COM 073902108    31,324,604   670,045       X                                 670,045
Bear Stearns Co.,Inc -                    COM 073902108       163,064     3,488       X              02 06 08 15          3,488
Belden, Inc. -                            COM 077459105     1,316,563    55,000       X                  02              55,000
Bell Atlantic Corp. -                     COM 077853109     1,594,039    24,383       X               02 08 14           24,383
Bellsouth Corp. -                         COM 079860102       600,000    12,800       X                  02              12,800
Ben & Jerry's Homemade, Inc. Cl A         COM 081465106     1,021,200    36,800       X                  16              36,800
Benchmark Electronic -                    COM 08160H101       409,688    11,400       X                  11              11,400
Bergen Brunswig Corp Cl A                 COM 083739102     8,828,757   511,812       X                                 511,812
Bergen Brunswig Corp Cl A                 COM 083739102       945,300    54,800       X                 02 06            54,800
W.R. Berkley Corp. -                      COM 084423102       712,500    28,500       X                  11              28,500
Berkshire Hathaway, Inc.                  COM 084670108    31,146,000       452       X                                     452
Bethlehem Steel Corp -                    COM 087509105       694,182    90,300       X                  02              90,300
Biogen Inc. -                             COM 090597105       257,251     4,000       X                 06 15             4,000
Biomet, Inc. -                            COM 090613100     8,148,750   205,000       X                                 205,000
Biomet, Inc. -                            COM 090613100        31,800       800       X                  02                 800
Black & Decker Corp. -                    COM 091797100   187,376,368 3,248,793       X                               3,248,793
Black & Decker Corp. -                    COM 091797100        37,875       600       X                  02                 600
Black Box Corp.* -                        COM 091826107       506,263    10,100       X                  11              10,100
Block Drug Inc. Cl A -                    COM 093644102       937,260    22,483       X                  11              22,483
H&R Block, Inc. -                         COM 093671105       250,000     5,000       X                 02 03             5,000
Bob Evans Farms, -                        COM 096761101       371,663    18,700       X                  02              18,700
Boeing Co. -                              COM 097023105       478,330    10,825       X                 02 08            10,825
Bon-Ton Stores                            COM 09776J101       126,175    19,600       X                  02              19,600
Borg-Warner Automotive, Inc.              COM 099724106       539,000     9,800       X                  15               9,800
Bowne & Co, Inc. -                        COM 103043105       820,300    63,100       X                  02              63,100
Boyd Gaming Corp. -                       COM 103304101       658,000    94,000       X                  02              94,000
Brady Corp. -                             COM 104674106       477,750    14,700       X                  11              14,700
Bristol-Meyers -                          COM 110122108    87,943,750 1,250,000       X                               1,250,000
Bristol-Meyers -                          COM 110122108     2,737,905    38,870       X            02 03 06 08 14        38,870
Broadcom Corp. -                          COM 111320107       216,844     1,500       X                 12 15             1,500
Broadvision, Inc -                        COM 111412102     1,010,375    13,700       X               05 07 15           13,700
Brown Shoe Company, -                     COM 115736100     1,485,525    68,300       X                  02              68,300
Brunswick Corp. -                         COM 117043109    59,005,154 2,193,500       X                               2,193,500
Brunswick Corp. -                         COM 117043109        16,725       600       X                  02                 600
Burlington Coat Factory Warehouse         COM 121579106     1,207,031    62,500       X                  02              62,500
Burlington Inds, Inc -                    COM 121693105       278,219    30,700       X                 02 07            30,700
Burlington Northern Santa Fe Corp.        COM 12189T104       745,488    24,048       X              01 02 08 15         24,048
Burr-Brown Corp. -                        COM 122574106     1,007,188    27,500       X                 10 16            27,500
Bush Boake Allen Inc -                    COM 123162109       280,800     9,600       X                  11               9,600
Business Objects S. A. ADR                COM 12328X107     2,113,350    57,900       X                 15 16            57,900
                                                        -------------
                                         Column Total     623,885,729
</TABLE>



                                  Page 5 of 21
<PAGE>   6
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
CBS CORP. -                               COM 12490K107     1,955,038    45,400       X                                  45,400
CBS Inc. -                                COM 12490K107       212,844     4,900       X                  02               4,900
C-Cube Microsystems -                     COM 125015107       671,775    21,200       X                  16              21,200
CDW Computer Centers Inc.                 COM 125129106       228,800     5,200       X                  15               5,200
C.H. Robinson Worldwide, Inc.             COM 12541W100       404,250    11,000       X                  15              11,000
CIGNA CORP -                              COM 125509109       797,440     8,960       X              01 02 08 14          8,960
Cleco Corp. -                             COM 12561M107       893,025    29,400       X                 02 07            29,400
CMGI, Inc.* -                             COM 125750109       684,375     6,000       X                  02               6,000
CMP Group, Inc. -                         COM 125887109       432,094    16,500       X                  11              16,500
CMS Energy Corp. -                        COM 125896100       466,298    18,288       X              01 02 08 11         18,288
CNET, Inc. -                              COM 125945105       288,125     5,000       X                  15               5,000
CVS Corp. -                               COM 126650100       204,500     4,000       X                 02 06             4,000
Cablevision Systems -                     COM 12686C109       231,000     3,300       X                 06 15             3,300
Cabot Oil & Gas Corp -                    COM 127097103       545,713    29,300       X                  11              29,300
CACI International -                      COM 127190304       585,000    26,000       X                  11              26,000
Cadence Design Systems, Inc.              COM 127387108     1,213,800    95,200       X                 02 15            95,200
Cal Dive International, Inc.              COM 127914109       579,575    19,400       X                  11              19,400
Callaway Golf Co. -                       COM 131193104       933,075    63,800       X                  02              63,800
Cambridge Technology Partners,Inc.        COM 132524109       755,188    43,000       X                  02              43,000
Campbell Soup Co. -                       COM 134429109    13,495,125   291,000       X                                 291,000
Campbell Soup Co. -                       COM 134429109       134,859     2,908       X                 02 08             2,908
Canadian National Railway Co.             COM 136375102       944,700    14,100       X                 14 15            14,100
Capital One Financl -                     COM 14040H105       584,719    10,500       X                                  10,500
Capital One Financial Corp.               COM 14040H105       200,809     3,606       X              02 06 08 12          3,606
Cardinal Health -                         COM 14149Y108    25,650,000   400,000       X                                 400,000
Cardinal Health -                         COM 14149Y108       128,250     2,000       X                 02 06             2,000
Casella Waste Systems, Inc.               COM 147448104     2,022,800    77,800       X               02 05 16           77,800
Caterpillar Inc. -                        COM 149123101     1,517,188    25,000       X                                  25,000
Caterpillar, Inc. -                       COM 149123101       144,240     2,404       X                 02 08             2,404
Central Garden & Pet Co.*                 COM 153527106       482,775    47,100       X                  16              47,100
Central Hudson Gas & Electric             COM 153609102       352,800     8,400       X                  11               8,400
Ceridian Corp. -                          COM 15677T106    30,150,950   922,400       X                                 922,400
Ceridian Corp. -                          COM 15677T106        39,225     1,200       X                 02 06             1,200
Championship Auto Racing                  COM 158711101       844,237    28,200       X                 10 16            28,200
Chancellor Broadcasting Corp. A           COM 158915108     1,598,570    28,999       X                  02              28,999
Charter One Fincl In -                    COM 160903100     6,236,524   279,745       X                                 279,745
Charter One Fincl In -                    COM 160903100         2,893       104       X                  08                 104
Chase Manhattan Corp -                    COM 16161A108     1,637,906    18,908       X         01 02 03 06 08 14 15     18,908
Chesapeake Corp. -                        COM 165159104       849,831    22,700       X                  02              22,700
Chevron Corp. -                           COM 166751107       418,825     4,400       X                  02               4,400
Children's Place* -                       COM 168905107     1,125,900    27,800       X                 11 15            27,800
Chirex Inc. -                             COM 170038103       835,251    26,000       X                 10 16            26,000
Chubb Corp. -                             COM 171232101    51,573,219   741,500       X                                 741,500
Chubb Corp. -                             COM 171232101     1,163,986    16,748       X            02 03 08 14 15        16,748
Church & Dwight Co., Inc.                 COM 171340102       939,600    21,600       X                  11              21,600
Ciena Corp. -                             COM 171779101       292,819     9,700       X                 12 15             9,700
Cinar Corp. -                             COM 171905300     1,526,350    62,300       X               02 10 12           62,300
Circuit City Stores Inc                   COM 172737108       632,586     6,802       X            01 02 08 12 15         6,802
Cisco System Inc. -                       COM 17275R102     4,050,713    65,400       X                                  65,400
                                                        -------------
                                         Column Total     161,659,560
</TABLE>


                                  Page 6 of 21
<PAGE>   7
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Cisco Systems Inc. -                      COM 17275R102     2,188,743    33,934       X              02 03 06 08         33,934
Citigroup Inc. -                          COM 172967101     3,273,047    71,250       X                                  71,250
Citigroup, Inc. -                         COM 172967101     1,631,245    34,342       X              02 03 06 08         34,342
Citrix Systems, Inc. -                    COM 177376100       299,450     5,300       X                 05 15             5,300
Claire's Stores, Inc -                    COM 179584107       515,063    20,100       X                 05 11            20,100
Clayton Homes, Inc. -                     COM 184190106       123,525    10,800       X                  13              10,800
Clear Channel Communications Inc.         COM 184502102     1,785,481    25,900       X               02 06 15           25,900
Coach USA, Inc.* -                        COM 18975L106       650,031    15,500       X                  16              15,500
Coachmen Industries Inc.                  COM 189873102       474,300    20,400       X                  11              20,400
Coca Cola Co. -                           COM 191216100     1,356,938    21,711       X               02 06 08           21,711
Cognex Corporation -                      COM 192422103       347,188    11,000       X                                  11,000
Cohu, Inc. -                              COM 192576106       463,413    13,100       X                  02              13,100
Coinstar, Inc. -                          COM 19259P300       701,409    24,450       X                 11 16            24,450
Columbia Energy Group                     COM 197648108       305,037     4,866       X                 02 08             4,866
Comcast Corp. -                           COM 200300101    21,487,500   600,000       X                                 600,000
Comcast Corp. Cl. A -                     COM 200300200   103,935,000 2,704,000       X                               2,704,000
Comcast Corp. Cl. A -                     COM 200300200       246,077     6,402       X               02 06 08            6,402
Community First Bankshares, Inc.          COM 203902101       537,188    22,500       X                  11              22,500
Compaq Computer Corp -                    COM 204493100       272,430    11,501       X                 02 08            11,501
Computer Network Technology Corp.*        COM 204925101     1,481,313    68,500       X                  15              68,500
Compuware Corp. -                         COM 205638109       314,944     9,900       X              01 02 06 15          9,900
Concentric Network Corp.                  COM 20589R107     1,462,800    36,800       X               07 10 16           36,800
Concord Communications, Inc.              COM 206186108       643,500    14,300       X                  16              14,300
CONMED Corp. -                            COM 207410101     1,776,250    58,000       X               02 11 15           58,000
Connecticut Energy Corp.                  COM 207567108       497,456    12,900       X                  11              12,900
Consolidated Stores Corp.                 COM 210149100     1,764,469    64,900       X                                  64,900
Consolidated Stores -                     COM 210149100       194,400     7,200       X               01 02 04            7,200
Cooper Cameron Corp -                     COM 216640102     1,350,706    36,444       X               08 15 16           36,444
Cooper Indstrs, Inc. -                    COM 216669101       474,032     9,116       X               02 08 14            9,116
Cooper Tire & Rubber Co.                  COM 216831107       219,713     9,300       X                 02 03             9,300
Copart Inc. -                             COM 217204106       915,875    43,100       X                 07 15            43,100
Cordant Technologies Inc.                 COM 218412104     2,729,325    60,400       X                 02 11            60,400
CORE, Inc.* -                             COM 21867P102       575,250    70,800       X                  16              70,800
Corel Corp. -                             COM 21868Q109       824,988   212,900       X                  02             212,900
Corning Inc. -                            COM 219350105     3,475,500    56,000       X                                  56,000
Corning Inc. -                            COM 219350105       336,601     4,800       X               01 02 12            4,800
Cost Plus Inc.-CA -                       COM 221485105     1,624,350    35,700       X                  15              35,700
Covad Communications Group, Inc.          COM 222814204       335,869     6,300       X                 10 15             6,300
Covance, Inc. -                           COM 222816100    13,098,684   550,700       X                                 550,700
Covance, Inc. -                           COM 222816100        40,694     1,700       X                 01 07             1,700
Cox Communications A -                    COM 224044107     2,320,507    64,796       X                                  64,796
Credence Systems Corp.                    COM 225302108       761,063    20,500       X                  15              20,500
Crompton & Knowles Corp.                  COM 227111101     1,173,750    60,000       X                  02              60,000
Crown American Realty Trust               COM 228186102        92,138    12,600       X                  04              12,600
Cullen Frost Bankers Inc.                 COM 229899109       628,425    22,800       X                 07 11            22,800
Cumulus Media Inc. CL A                   COM 231082108       459,375    21,000       X                  15              21,000
Cypress Semiconductor Corp.               COM 232806109     2,225,850   134,900       X                  02             134,900
Dallas Semiconductor Corp.                COM 235204104     1,823,050    36,100       X                 07 11            36,100
Datascope Corp. -                         COM 238113104       311,613     9,700       X                 07 11             9,700
                                                        -------------
                                         Column Total     184,525,549
</TABLE>


                                  Page 7 of 21
<PAGE>   8
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Davox Corporation -                       COM 239208101       598,069    50,100       X                  11              50,100
Dayton Hudson Corp. -                     COM 239753106       228,085     3,509       X               02 06 08            3,509
Dell Computer Corp. -                     COM 247025109       706,700    19,100       X                 02 06            19,100
Denison Int'l PLC -                       COM 248335101       602,700    39,200       X                  09              39,200
Dentsply Intl. Inc. -                     COM 249030107       168,000     6,000       X                                   6,000
Dentsply International Inc.               COM 249030107     1,313,200    46,900       X                  11              46,900
Devon Energy Corp. -                      COM 251799102     1,304,875    36,500       X                  02              36,500
Devry Inc. -                              COM 251893103       888,288    39,700       X                 07 16            39,700
Dialogic Corp.* -                         COM 252499108       710,775    16,200       X                  11              16,200
Diebold, Inc. -                           COM 253651103       554,875    19,300       X                  15              19,300
Digital Microwave Corporation             COM 253859102       637,500    50,000       X                  15              50,000
Dionex Corp. -                            COM 254546104       858,600    21,200       X                  11              21,200
Discount Auto Parts Inc.                  COM 254642101       545,225    22,600       X                  02              22,600
Disney (Walt) Co. -                       COM 254687106    88,031,657 2,965,885       X                               2,965,885
Disney, Walt Co. -                        COM 254687106     1,109,250    36,000       X               02 03 14           36,000
Dollar General Corp -                     COM 256669102       253,750     8,750       X                                   8,750
Dollar General Corp -                     COM 256669102        42,572     1,468       X                  02               1,468
Donaldson Inc. -                          COM 257651109     1,053,500    43,000       X                  11              43,000
Donaldson, Lufkin & Jenrette, Inc.-DLJ    COM 257661108       271,125     4,500       X                  15               4,500
Doncasters PLC ADR -                      COM 257692103     1,186,500    67,800       X                 02 11            67,800
Doral Financial Corp -                    COM 25811P100     1,395,525    80,900       X                 02 07            80,900
Dow Chemical Co. -                        COM 260543103     1,525,500    12,000       X                                  12,000
Dow Chemical Co. -                        COM 260543103       266,184     2,098       X               02 06 08            2,098
Du Pont (E.I.) De Nemours & Co.           COM 263534109    70,867,388 1,037,400       X                               1,037,400
Du Pont (E.I.) De Nemours & Co.           COM 263534109       792,630    11,603       X               02 03 08           11,603
Ducommun Inc. -                           COM 264147109       265,013    22,200       X                  11              22,200
 Dun & Bradstreet -                       COM 26483B106    49,838,612 1,486,900       X                               1,486,900
 Dun & Bradstreet -                       COM 26483B106        38,981     1,100       X                  02               1,100
Dura Automotive Systems Inc.              COM 265903104       827,925    24,900       X                 02 13            24,900
Dycom Industries, Inc.*                   COM 267475101     1,271,200    22,700       X                 07 15            22,700
ECI Telecom Ltd. -                        COM 268258100       467,944    14,100       X                  15              14,100
EEX Corporation -                         COM 26842V207       307,331    44,300       X                  02              44,300
E M C Corp. Mass -                        COM 268648102    76,736,000 1,395,200       X                               1,395,200
E M C Corp. Mass -                        COM 268648102       638,550    11,610       X               02 06 08           11,610
Ensco Intl. Inc. -                        COM 26874Q100       381,046    19,112       X                 08 15            19,112
Etec Systems, Inc. -                      COM 26922C103     2,300,900    69,200       X              02 05 11 16         69,200
Eastern Enterprises -                     COM 27637F100       453,150    11,400       X               02 06 11           11,400
Eastman Kodak Co. -                       COM 277461109       817,336    12,064       X              02 06 08 14         12,064
EchoStar Comm Corp.* -                    COM 278762109     2,378,281    15,500       X                  02              15,500
Edison International -                    COM 281020107       309,391    11,566       X               02 08 14           11,566
Elder-Beerman Stores, Corp.               COM 284470101       287,381    39,300       X                  02              39,300
Electro Scientific Industries, Inc.       COM 285229100       359,319     8,600       X                  11               8,600
Electroglas, Inc. -                       COM 285324109       524,000    26,200       X                  02              26,200
Electronic Arts Inc. -                    COM 285512109    13,562,500   250,000       X                                 250,000
Electronic Arts Inc. -                    COM 285512109       191,937     3,538       X                 08 15             3,538
Electronic Data Sys. -                    COM 285661104       803,188    14,200       X              01 02 03 06         14,200
Electronics for Imaging, Inc.             COM 286082102     1,104,563    21,500       X                  15              21,500
Emerson Electric -                        COM 291011104       407,807     6,486       X              02 03 06 08          6,486
Emulex Corp. -                            COM 292475209     1,100,756     9,900       X                 12 16             9,900
                                                        -------------
                                         Column Total     331,285,582
</TABLE>


                                  Page 8 of 21
<PAGE>   9
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Enhance Financial Services Group          COM 293310108       353,525    17,900       X                  16              17,900
Enron Corp. -                             COM 293561106       621,300     7,600       X               02 03 08            7,600
Entercom Comm. Corp.*                     COM 293639100       940,500    22,000       X                  16              22,000
Equifax Inc. -                            COM 294429105     2,908,531    81,500       X                                  81,500
Equifax Inc. -                            COM 294429105        44,110     1,236       X                 02 08             1,236
Equitable Companies -                     COM 29444G107   189,589,900 2,829,700       X                               2,829,700
Equitable Companies -                     COM 29444G107         6,030        90       X                  08                  90
Everest Reinsurance Holdings Inc.         COM 299808105     2,525,175    77,400       X                  02              77,400
Exodus Comm., Inc. -                      COM 302088109       638,068     5,320       X             025 08 11 15          5,320
Expeditors Int'l -                        COM 302130109     1,128,150    41,400       X                 02 07            41,400
Exxon -                                   COM 302290101    33,705,100   437,200       X                                 437,200
Exxon Corp. -                             COM 302290101     1,987,588    25,771       X            02 03 06 08 14        25,771
FBL Financial Group Inc.                  COM 30239F106       889,200    45,600       X                  11              45,600
FSI International, Inc.                   COM 302633102       192,019    23,100       X                  02              23,100
Fairfield Communities, Inc.               COM 304231301     1,451,250    90,000       X                  16              90,000
Federal Express Corp -                    COM 31304N107    73,888,500 1,362,000       X                               1,362,000
FDX Corp.* -                              COM 31304N107       857,259    15,802       X              01 02 08 15         15,802
Federal Home Loan Mortgage Corp.          COM 313400301       295,800     5,100       X                 02 06             5,100
Fannie Mae -                              COM 313586109   136,192,096 2,128,326       X                               2,128,326
Fannie Mae -                              COM 313586109     1,053,043    15,401       X              02 06 08 15         15,401
Federated Department Stores, Inc.         COM 31410H101       265,111     5,008       X                 02 08             5,008
Finlay Enterprises, Inc.                  COM 317884203       445,388    33,300       X                  02              33,300
First Data Corp. -                        COM 319963104   138,987,394 2,840,100       X                               2,840,100
First Data Corp. -                        COM 319963104       289,514     5,916       X              01 02 06 08          5,916
First Midwest Bancorp, Inc.               COM 320867104     1,192,500    30,000       X                  02              30,000
First Union Corp. -                       COM 337358105    33,793,000   719,000       X                                 719,000
First Union Corp. -                       COM 337358105     1,419,071    30,193       X           01 02 03 06 08 14      30,193
Fleet Financial Group Inc.                COM 338915101       572,438    12,900       X              01 02 06 14         12,900
Florida Progress -                        COM 341109106       689,906    16,500       X                                  16,500
Florida Progress Corp.                    COM 341109106        28,919       700       X                  02                 700
Food Lion Inc Cl B                        COM 344775101       312,188    27,000       X                  14              27,000
Ford Motor Co. -                          COM 345370100    48,424,515   978,100       X                                 978,100
Ford Motor Co. -                          COM 345370100       708,178    12,548       X              02 03 06 08         12,548
Fossil, Inc. -                            COM 349882100       532,125    11,000       X                  15              11,000
Franklin Res Inc. -                       COM 354613101       400,156     9,850       X               02 08 15            9,850
Fremont General Corp -                    COM 357288109     1,303,130    69,040       X                 02 08            69,040
Fritz Companies, Inc -                    COM 358846103       155,875    14,500       X                  04              14,500
Frontier Corp -                           COM 35906P105       359,192     6,088       X               02 08 14            6,088
Furniture Brands International, Inc.      COM 360921100     1,463,438    52,500       X                  02              52,500
GTE Corp. -                               COM 362320103     1,312,217    17,323       X              02 03 06 08         17,323
GT Interactive Software Corp.             COM 36236E109        94,500    27,000       X                  02              27,000
Gannett Company, Inc -                    COM 364730101    23,331,987   362,000       X                                 362,000
Gannett Company, Inc -                    COM 364730101       144,178     2,020       X                 02 08             2,020
Gap, Inc. -                               COM 364760108       295,500     5,866       X                 02 08             5,866
Gardner Denver, Inc. -                    COM 365558105       445,050    27,600       X                  11              27,600
Gartner Group Inc. -                      COM 366651107    84,713,771 4,211,400       X                               4,211,400
Gaylord Container Corp. Class A           COM 368145108       810,419   102,100       X                 02 10           102,100
Geltex Pharmaceuticals, Inc               COM 368538104       568,800    31,600       X                  16              31,600
General Electric Co. -                    COM 369604103     1,643,969    15,500       X                                  15,500
                                                        -------------
                                         Column Total     793,969,571
</TABLE>


                                  Page 9 of 21
<PAGE>   10
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
General Electric Co. -                    COM 369604103     3,953,305    34,985       X            02 03 06 08 14        34,985
General Instrument Corp.                  COM 370120107       773,500    18,200       X            01 02 06 12 15        18,200
General Mills -                           COM 370334104       418,111     5,202       X               02 03 08            5,202
General Motors Corp. -                    COM 370442105       298,584     4,524       X                 02 08             4,524
General Nutrition Cos., Inc.              COM 37047F103       918,513    39,400       X                 02 15            39,400
Genesis Microchip, Inc.                   COM 371933102       354,375    15,000       X                  15              15,000
Genuine Parts Co. -                       COM 372460105    27,177,500   776,500       X                                 776,500
Genuine Parts Co. -                       COM 372460105        49,560     1,416       X                 02 08             1,416
Geon Co. -                                COM 37246W105     2,005,950    62,200       X              01 02 07 14         62,200
Georgia Gulf Corp. -                      COM 373200203    23,926,425 1,480,000       X                               1,480,000
Georgia Pacific Corp -                    COM 373298108       342,950     7,117       X                                   7,117
Georgia Pacific Corp -                    COM 373298108       293,915     6,204       X               02 08 15            6,204
Gerber Scientific -                       COM 373730100     1,120,775    50,800       X                 02 07            50,800
Getty Images, Inc. -                      COM 374276103       779,538    41,300       X                  16              41,300
Gillette Co. -                            COM 375766102       381,546     9,306       X                 02 08             9,306
Glaxo Wellcome PLC ADR                    COM 37733W105    59,456,250 1,050,000       X                               1,050,000
Global Industries Ltd.                    COM 379336100     3,224,906   251,700       X               02 11 15          251,700
Global Marine Inc. -                      COM 379352404       346,417    22,440       X                 08 15            22,440
Global TeleSystems Group, Inc.            COM 37936U104       307,800     3,800       X                  15               3,800
Go2Net, Inc. -                            COM 383486107       404,250     4,400       X                  16               4,400
Granite Broadcasting Corp.                COM 387241102       525,000    67,200       X                  16              67,200
Granite Construction Inc.                 COM 387328107     1,342,513    45,800       X                 02 07            45,800
Gymboree Corp. -                          COM 403777105       199,500    19,000       X                  04              19,000
HMT Technology Corp. -                    COM 403917107       212,500    85,000       X                  02              85,000
HCR Manor Care -                          COM 404134108    50,858,644 2,285,368       X                               2,285,368
HCR Manor Care, Inc. -                    COM 404134108        19,060       788       X                 02 08               788
Haemonetics Corp. -                       COM 405024100       975,038    48,600       X                  11              48,600
Halliburton Co. -                         COM 406216101       411,775     9,100       X               02 03 14            9,100
Hambrecht & Quist Group                   COM 406545103       959,681    25,850       X                 11 15            25,850
Hanger Orthopedic -                       COM 41043F208       668,232    47,100       X                 07 16            47,100
M.A. Hanna Co. -                          COM 410522106       534,219    32,500       X                  02              32,500
Harbinger Corp. -                         COM 41145C103       657,500    52,600       X                 02 07            52,600
Harcourt General Inc -                    COM 41163G101       675,469    13,100       X                  02              13,100
Harman International Industries, Inc.     COM 413086109       444,400    10,100       X                  02              10,100
Harmonic, Inc. -                          COM 413160102     1,180,341    20,550       X                 02 06            20,550
Harte-Hanks, Inc.                         COM 416196103     1,491,875    55,000       X                  02              55,000
Health Care Property Investors, Inc.      COM 421915109       256,988     8,900       X                  11               8,900
Healthsouth Corp. -                       COM 421924101     1,228,208    83,980       X                                  83,980
Healthsouth Corp. -                       COM 421924101       200,760    13,440       X                 02 08            13,440
Health Mangmt AssocA -                    COM 421933102       236,250    21,000       X                                  21,000
Health Mangmt AssocA -                    COM 421933102         2,250       200       X                  08                 200
Health Care Reit, Inc.                    COM 42217K106       265,050    11,400       X                  11              11,400
Hearst-Argyle TV -                        COM 422317107       326,352    13,598       X                  11              13,598
Heinz (H.J) Company -                     COM 423074103    25,298,088   504,700       X                                 504,700
H.J. Heinz Co. -                          COM 423074103       841,098    16,780       X              02 03 08 14         16,780
Heller Financial Inc -                    COM 423328103       759,281    27,300       X                 02 12            27,300
Helmerich & Payne -                       COM 423452101       752,475    31,600       X               02 07 15           31,600
Jack Henry & Associates, Inc.             COM 426281101       219,800     5,600       X                  11               5,600
Herbalife International Inc               COM 426908307       111,263    12,900       X                  02              12,900
                                                        -------------
                                         Column Total     218,187,776
</TABLE>


                                 Page 10 of 21
<PAGE>   11
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Hewlett-Packard Co. -                     COM 428236103    99,696,000   992,000       X                                 992,000
Hewlett-Packard Co. -                     COM 428236103       763,800     7,600       X                 02 06             7,600
Hispanic Broadcasting Corp.               COM 43357B104       963,613    12,700       X                  16              12,700
Home Depot Inc. -                         COM 437076102     7,521,993   117,149       X                                 117,149
Home Depot Inc. -                         COM 437076102       808,433    12,546       X               02 06 08           12,546
Honeywell, Inc. -                         COM 438506107    35,750,494   308,475       X                                 308,475
Honeywell, Inc. -                         COM 438506107        92,700       800       X                  02                 800
Hooper Holmes Inc. -                      COM 439104100       448,250    22,000       X                 07 15            22,000
Horace Mann Edu Corp -                    COM 440327104    39,546,068 1,622,400       X                               1,622,400
Horace Mann Educators Corp.               COM 440327104       543,750    20,000       X                  14              20,000
Hormel Foods Corp. -                      COM 440452100       410,550    10,200       X                 06 14            10,200
Houghton Mifflin Co. -                    COM 441560109     1,138,913    24,200       X                  02              24,200
Household Int'l -                         COM 441815107       254,404     5,370       X               01 02 08            5,370
Houston Exploration Co.                   COM 442120101       912,788    48,200       X                 02 07            48,200
Hudson United Bancor -                    COM 444165104     1,277,063    41,700       X                 02 07            41,700
Huntington Bancshares Inc.                COM 446150104       157,500     4,500       X                                   4,500
Huntington Bancshares Inc.                COM 446150104        52,990     1,514       X                 02 08             1,514
Hussmann International, Inc.              COM 448110106       814,875    49,200       X                  11              49,200
ICN Pharmaceuticals Inc.                  COM 448924100       502,125    15,600       X                  15              15,600
Hyperion Solutions Corp.                  COM 44914M104     1,259,344    70,700       X                 02 13            70,700
IDEC Pharmaceuticals -                    COM 449370105     3,999,544    51,900       X               02 07 15           51,900
IGEN International, Inc.                  COM 449536101       378,625    13,000       X                  15              13,000
IMS Health Inc -                          COM 449934108    52,561,637 1,836,200       X                               1,836,200
IMS Health Inc. -                         COM 449934108        65,625     2,100       X                  02               2,100
ISS Group, Inc. -                         COM 450306105     1,226,875    32,500       X                  15              32,500
IDEX Corp. -                              COM 45167R104       489,838    14,900       X                  11              14,900
Ikon Office Solution -                    COM 451713101     1,087,750    76,000       X                                  76,000
IKON Office Solutions, Inc.               COM 451713101        15,000     1,000       X                  02               1,000
In Focus Systems Inc -                    COM 452919103     1,429,500    95,300       X                  02              95,300
Indiana Energy, Inc. -                    COM 454707100       208,841     9,799       X                  11               9,799
Industrie Natuzzi SPA                     COM 456478106       616,169    31,700       X                  09              31,700
Infoseek Corp. -                          COM 45678M107       457,803     9,550       X                 11 16             9,550
InfoSpace.com, Inc. -                     COM 45678T102     1,095,100    23,300       X               12 15 16           23,300
Inktomi Corp. -                           COM 457277101       365,575     2,800       X                 12 15             2,800
Inprise Corp. -                           COM 45766C102       428,513    87,900       X                  11              87,900
Inspire Insurance Solutions, Inc.         COM 457732105       669,900    46,200       X                  16              46,200
Intergrated Device Technology, Inc.       COM 458118106     1,144,050   105,200       X                  02             105,200
Intel Corp. -                             COM 458140100    11,250,600   190,800       X                                 190,800
Intel Corp. -                             COM 458140100     2,321,095    39,010       X              02 03 06 08         39,010
Intermet Corp. -                          COM 45881K104       385,688    25,500       X                  02              25,500
IBM Corp. -                               COM 459200101   309,169,967 2,518,200       X                               2,518,200
IBM Corp. -                               COM 459200101     3,872,589    29,962       X            02 03 06 08 14        29,962
International Home Foods, Inc.            COM 459655106     1,004,844    54,500       X                  02              54,500
International Integration, Inc.*          COM 459698106       427,500    19,000       X                  15              19,000
International Network Services            COM 460053101       847,875    21,000       X                  15              21,000
International Paper Co.                   COM 460146103       224,422     4,444       X               02 06 08            4,444
International Rectifier Corp.             COM 460254105     1,734,619   130,300       X                  02             130,300
Intl Telecomm Data Systems                COM 46047F104     1,088,000    68,000       X                  15              68,000
Intuit Inc -                              COM 461202103       333,463     3,700       X                 06 15             3,700
                                                        -------------
                                         Column Total     591,816,654
</TABLE>


                                 Page 11 of 21
<PAGE>   12
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Ivex Packaging Corp.                      COM 465855104     1,430,000    65,000       X                  02              65,000
JDA Software Group, Inc.                  COM 46612K108       480,525    51,600       X                  02              51,600
Jabil Circuit, Inc. -                     COM 466313103       428,688     9,500       X                 07 15             9,500
Jefferson Smurfit Gr -                    COM 47508W107       431,194    18,300       X                  02              18,300
Johnson & Johnson Co -                    COM 478160104   115,150,000 1,175,000       X                               1,175,000
Johnson & Johnson -                       COM 478160104     1,916,488    19,556       X            02 03 06 08 14        19,556
Jones Lang LaSalle, Inc.                  COM 48020Q107       560,475    18,800       X                  16              18,800
Kla-Tencor Corp. -                        COM 482480100       253,013     3,900       X                                   3,900
Kla-Tencor Corp. -                        COM 482480100        38,925       600       X                  02                 600
Kaydon Corp. -                            COM 486587108       897,788    26,700       X                  11              26,700
Keycorp -                                 COM 493267108       259,442     8,076       X                 02 08             8,076
Kimberly Clark Corp. -                    COM 494368103       548,112     9,616       X            01 02 03 06 08         9,616
Kitty Hawk, Inc. -                        COM 498326107       308,700    39,200       X                  02              39,200
Knight-Ridder, Inc. -                     COM 499040103       815,625    15,000       X                                  15,000
Knight-Ridder, Inc. -                     COM 499040103        34,281       624       X                 02 08               624
Kohls Corp. -                             COM 500255104       787,313    10,200       X               02 06 15           10,200
Philips Elect. NV -                       COM 500472204    51,599,580   511,520       X                                 511,520
Koninklijke Philips Electrs               COM 500472204       632,688     6,272       X                  15               6,272
Kroger Co. -                              COM 501044101     1,977,663    35,714       X                                  35,714
Kroger Co. -                              COM 501044101       335,697    12,016       X               02 06 08           12,016
Kroll-O'Gara Comp -                       COM 501050108       428,013    19,400       X                  16              19,400
LSI Logic Corp -                          COM 502161102       405,900     8,800       X               02 06 08            8,800
Labor Ready, Inc. -                       COM 505401208       897,000    27,600       X                 07 15            27,600
Lafarge Corp. -                           COM 505862102       506,757    14,300       X                 01 15            14,300
LAM Research Corp. -                      COM 512807108     1,522,013    32,600       X                 02 07            32,600
Lamar Advertising Co.                     COM 512815101     1,518,782    37,100       X                 02 12            37,100
Laser Vision Centers Inc.                 COM 51807H100       819,000    13,000       X                  15              13,000
Lason, Inc. -                             COM 51808R107       627,756    12,650       X                 07 11            12,650
Legato Systems, Inc. -                    COM 524651106     1,830,675    31,700       X                 02 05            31,700
Lexmark Intl Group -                      COM 529771107       792,750    12,000       X               03 06 15           12,000
Lilly Eli & Co. -                         COM 532457108       157,575     2,200       X                                   2,200
Eli Lilly & Co. -                         COM 532457108       892,448    12,460       X              01 02 06 08         12,460
Lincoln Electric Co.                      COM 533900106       344,400    16,800       X                  11              16,800
Lindsay Manufctrg Co -                    COM 535555106     5,927,344   337,500       X                                 337,500
Linens 'N Things, Inc.                    COM 535679104     2,568,125    58,700       X                 02 15            58,700
Liposome Company, Inc.                    COM 536310105     1,023,188    53,500       X                  15              53,500
Lockheed Martin Corp -                    COM 539830109       394,287    11,029       X                                  11,029
Lockheed Martin Corp.                     COM 539830109     1,050,450    28,200       X            01 02 03 08 15        28,200
Louis Dreyfus Natural Gas Corp.*          COM 546011107       603,750    28,000       X                  15              28,000
Lucent Technologies, -                    COM 549463107     1,748,992    25,935       X               02 06 08           25,935
Lyondell Chemical Co.                     COM 552078107       223,369    10,830       X               01 08 14           10,830
MBIA Inc. -                               COM 55262C100    17,140,024   275,500       X                                 275,500
MBIA Inc. -                               COM 55262C100       213,157     3,292       X                 02 08             3,292
MBNA Corp. -                              COM 55262L100   113,850,139 3,742,512       X                               3,742,512
MBNA Corp. -                              COM 55262L100       166,906     5,450       X                  02               5,450
MCI Worldcom, Inc. -                      COM 55268B106    86,508,750 1,003,000       X                               1,003,000
MCI Worldcom -                            COM 55268B106     1,970,037    22,841       X              02 03 06 08         22,841
MDU Resources Group -                     COM 552690109       379,828    16,650       X                 07 11            16,650
MEMC Electonic Mat. -                     COM 552715104       207,188    17,000       X                  15              17,000
                                                        -------------
                                         Column Total     423,604,793
</TABLE>


                                 Page 12 of 21
<PAGE>   13
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Macdermid Inc. -                          COM 554273102     1,711,200    36,800       X               02 07 13           36,800
Magnetek Inc.* -                          COM 559424106     1,056,250   100,000       X                  02             100,000
Manugistics Group Inc.                    COM 565011103       746,750    51,500       X                  16              51,500
Mark VII, Inc. -                          COM 570414102       601,825    36,200       X                  16              36,200
Market Guide, Inc.* -                     COM 570565200       582,250    27,400       X                  16              27,400
Marsh & McLennan Companies, Inc.          COM 571748102       777,348    10,296       X            02 03 06 08 14        10,296
Martin Marietta  Materials Inc.           COM 573284106    29,652,314   584,100       X                                 584,100
Martin Marietta  Materials Inc.           COM 573284106        17,700       300       X                  01                 300
Masco Corp. -                             COM 574599106    36,588,699 1,408,100       X                               1,408,100
Masco Corp. -                             COM 574599106       184,800     6,400       X                 01 02             6,400
Mattel, Inc. -                            COM 577081102       511,830    19,360       X               01 02 08           19,360
Matthews Intl. Corp. CL A                 COM 577128101       524,363    17,700       X                  11              17,700
Maxtor Corp -                             COM 577729205       933,809   185,600       X                  02             185,600
Maxwell Shoe Co. Class A                  COM 577766108       254,656    28,100       X                  02              28,100
May Dept. Stores -                        COM 577778103       849,383    20,780       X              02 08 14 15         20,780
Maytag Corporation -                      COM 578592107    49,997,995   777,300       X                                 777,300
Maytag Corp. -                            COM 578592107       613,251     8,800       X                 02 15             8,800
McDonalds Co. -                           COM 580135101    61,935,778 1,701,800       X                               1,701,800
McDonald's Corp. -                        COM 580135101       826,498    20,006       X              02 06 08 14         20,006
Mckesson HBOC , Inc. -                    COM 58155Q103    29,415,879   916,790       X                                 916,790
McKesson HBOC, Inc.                       COM 58155Q103        60,427     1,881       X                  02               1,881
MediaOne Group Inc. -                     COM 58440J104     2,641,800    35,700       X                                  35,700
MediaOne Group, Inc. -                    COM 58440J104       371,131     4,990       X               02 06 08            4,990
MedQuist, Inc. -                          COM 584949101     1,417,500    32,400       X               07 10 15           32,400
Medtronic Inc. -                          COM 585055106     3,448,100    46,400       X                                  46,400
Medtronic Inc. -                          COM 585055106       433,764     5,570       X               02 06 08            5,570
Mellon Bank Corp. -                       COM 585509102   229,303,497 6,779,600       X                               6,779,600
Mellon Bank Corp. -                       COM 585509102       880,275    24,200       X              02 03 06 15         24,200
Mentor Corp. Minn -                       COM 587188103       664,913    35,700       X                  11              35,700
Mercantile Bankshare Corp.                COM 587405101       320,002     9,046       X                 08 14             9,046
Merck & Co. Inc. -                        COM 589331107   162,800,000 2,200,000       X                               2,200,000
Merck & Co. Inc. -                        COM 589331107     1,893,216    25,584       X              02 03 06 08         25,584
Mercury Interactive -                     COM 589405109       884,375    25,000       X               07 15 16           25,000
Merrill Lynch & Co., -                    COM 590188108    76,340,313   955,000       X                                 955,000
Merrill Lynch & Co. -                     COM 590188108       687,463     8,600       X               02 08 15            8,600
Metals USA Inc -                          COM 591324108       483,225    37,900       X                 07 16            37,900
Methode Electronics Inc. Class A          COM 591520200     1,313,025    57,400       X                  11              57,400
Metris Companies -                        COM 591598107     1,564,800    38,400       X               07 13 15           38,400
Metro Networks Inc. -                     COM 591918107     1,008,788    18,900       X                  16              18,900
Metzler Group (The), Inc.                 COM 592903108       299,731    10,850       X                  11              10,850
Michaels Stores, Inc -                    COM 594087108       235,813     7,700       X                  04               7,700
Micrel, Inc. -                            COM 594793101       518,000     7,000       X                  15               7,000
Microsoft Corp. -                         COM 594918104    36,075,000   400,000       X                                 400,000
Microsoft Corp. -                         COM 594918104     4,488,271    49,766       X               02 06 08           49,766
Microchip Technology -                    COM 595017104       284,250     6,000       X                                   6,000
Micro Warehouse, Inc.                     COM 59501B105       913,413    51,100       X                  02              51,100
Micron Tech Inc. Com -                    COM 595112103       395,062     9,800       X               02 08 15            9,800
Midwest Express Holdings Inc.             COM 597911106       782,000    23,000       X                  15              23,000
Millennium Pharmaceuticals*               COM 599902103     2,246,400    62,400       X                 02 15            62,400
                                                        -------------
                                         Column Total     750,537,128
</TABLE>


                                 Page 13 of 21
<PAGE>   14
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Millipore Corp. -                         COM 601073109    38,784,206 1,048,800       X                               1,048,800
Millipore Corp. -                         COM 601073109     1,577,881    38,900       X                  02              38,900
Minimed Inc -                             COM 60365K108     1,792,644    23,300       X               07 12 16           23,300
Minnesota Mng & Mfg Co.                   COM 604059105       239,511     2,753       X                                   2,753
Minnesota Mng & Mfg Co.                   COM 604059105       234,731     2,700       X                  02               2,700
Mirage Resorts Inc. -                     COM 60462E104       190,749    11,388       X                 02 08            11,388
Mobil Corp. -                             COM 607059102       870,188     9,100       X                                   9,100
Mobil Corp. -                             COM 607059102     1,547,469    15,631       X               02 03 08           15,631
Mohawk Industries Inc.                    COM 608190104     1,063,125    35,000       X                  02              35,000
Monsanto Corp. -                          COM 611662107     1,216,750    31,000       X                                  31,000
Monsanto Co. -                            COM 611662107       403,327    10,227       X               02 06 08           10,227
Montana Power Co -                        COM 612085100       599,250     8,500       X                  11               8,500
MONY Group, Inc. -                        COM 615337102     1,040,738    31,900       X                  02              31,900
Morgan Stanley Dean Witter, & Co.         COM 617446448    16,912,500   165,000       X                                 165,000
Morgan Stanley Dean Witter & Co.          COM 617446448       697,410     6,804       X              02 03 06 08          6,804
Motorola Inc. -                           COM 620076109       757,432     7,994       X              02 03 06 08          7,994
Musicland Stores Cor -                    COM 62758B109       966,488   108,900       X                 02 07           108,900
Mylan Laboratories, Inc.                  COM 628530107       508,800    19,200       X                  15              19,200
NFO Worldwide, Inc. -                     COM 62910N108       683,200    48,800       X                  02              48,800
NN Ball & Roller Inc                      COM 629305103        97,175    16,900       X                  11              16,900
NPC International, Inc.*                  COM 629360306       321,338    20,900       X                  15              20,900
NUI Corp. -                               COM 629430109       375,000    15,000       X                  11              15,000
Nabors Industries Inc.                    COM 629568106       835,763    34,200       X                  11              34,200
National Data Corp. -                     COM 635621105     1,594,575    37,300       X                 02 07            37,300
National Discount Brokers Group, Inc.     COM 635646102       829,400    14,300       X                 10 16            14,300
National Fuel Gas Co N J                  COM 636180101       388,000     8,000       X                  11               8,000
National Instruments Corp.                COM 636518102       704,544    17,450       X                  16              17,450
National-Oilwell Inc -                    COM 637071101       714,966    56,352       X                  11              56,352
Nautica Enterprises, Inc.                 COM 639089101       820,125    48,600       X                  02              48,600
Neiman Marcus Group, Inc.                 COM 640204103       732,094    28,500       X                  02              28,500
Network Event Theater, Inc.*              COM 640924106       859,275    51,300       X                  16              51,300
Net.B@nk, Inc. -                          COM 640933107       532,000    14,000       X                 10 15            14,000
Nevada Power Co -                         COM 641423108       560,000    22,400       X                  11              22,400
New Era of Networks Inc.                  COM 644312100     2,043,094    46,500       X                 02 15            46,500
New Plan Excel Realty Trust               COM 648053106       196,560    10,920       X                  14              10,920
New York Times Co., Class A               COM 650111107   123,383,647 3,529,500       X                               3,529,500
New York Times Co. -                      COM 650111107       294,353     7,996       X              01 02 03 08          7,996
Newell Rubbermaid Inc.                    COM 651229106    29,248,500   629,000       X                                 629,000
Newell Rubbermaid Inc.                    COM 651229106       141,872     3,051       X                 01 02             3,051
Newpark Resources, Inc.                   COM 651718504       394,050    44,400       X                  02              44,400
Newport News Shipbuilding Inc             COM 652228107     3,026,700   102,600       X                 02 11           102,600
News Corp. Pref -                         COM 652487802       505,000    16,000       X                  14              16,000
NEXTLINK Comm, Inc. -                     COM 65333H707       751,188    10,100       X                 06 15            10,100
99 Cents Only Stores -                    COM 65440K106     2,197,250    44,000       X               11 15 16           44,000
Noble Affiliates, Inc.                    COM 654894104       944,281    33,500       X                  02              33,500
Nordson Corp. -                           COM 655663102       483,875     7,900       X                  02               7,900
Nortel Networks Corp -                    COM 656569100       503,512     5,800       X                 02 14             5,800
North Fork Bancorporation, Inc.           COM 659424105       213,125    10,000       X                                  10,000
North Fork Bancorporation, Inc.           COM 659424105         1,748        82       X                  08                  82
                                                        -------------
                                         Column Total     243,779,405
</TABLE>


                                 Page 14 of 21
<PAGE>   15
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
NorthPoint Comm. Group, Inc.              COM 666610100       222,650     6,100       X                  15               6,100
Nova Corp. -                              COM 669784100       504,075    20,163       X                  16              20,163
Novell Inc. -                             COM 670006105       339,200    12,800       X               02 06 15           12,800
Novellus Systems Inc.                     COM 670008101       941,850    13,800       X               05 15 16           13,800
OM Group, Inc. -                          COM 670872100    15,303,084   511,150       X                                 511,150
OM Group, Inc. -                          COM 670872100       100,050     2,900       X                  13               2,900
Ocean Energy, Inc. -                      COM 67481E106     1,481,288   153,900       X                  02             153,900
Ocean Financial Corp -                    COM 674904107       331,688    18,300       X                 07 11            18,300
Oceaneering International Inc.            COM 675232102       424,088    26,300       X                  11              26,300
Ocular Services, Inc.                     COM 675744106       597,700    34,400       X                  02              34,400
Officemax, Inc. -                         COM 67622M108     1,104,000    92,000       X                  02              92,000
Offshore Logistics I -                    COM 676255102       483,938    43,500       X                  11              43,500
Omnicare Inc. -                           COM 681904108       151,500    12,000       X                                  12,000
Omnicare, Inc. -                          COM 681904108       348,450    27,600       X                  15              27,600
OmniQuip Intl., Inc. -                    COM 681969101       195,300    24,800       X                  02              24,800
Omnipoint Corp. -                         COM 68212D102       587,431    20,300       X                 10 16            20,300
On Assignment Inc. -                      COM 682159108       577,363    22,100       X                  16              22,100
Onsale, Inc.* -                           COM 682838107       267,019    14,100       X                  16              14,100
Optical Coating Laboratory, Inc.          COM 683829105     1,835,569    21,950       X               05 11 15           21,950
Optimal Robotics Corp.                    COM 68388R208       822,825    82,800       X                  16              82,800
Oracle Corp. -                            COM 68389X105       540,169    14,550       X               02 06 08           14,550
Orbital Sciences Corp.                    COM 685564106       406,350    17,200       X                  11              17,200
Outback Steakhouse, Inc.                  COM 689899102       204,425     5,200       X                  15               5,200
PMC - Sierra, Inc. -                      COM 69344F106     2,039,238    34,600       X               02 05 15           34,600
PRI Automation, Inc. -                    COM 69357H106     2,428,750    67,000       X                 02 15            67,000
Pacific Century Financial Corp.           COM 694058108    15,944,618   799,900       X                                 799,900
Pacific Century Financial Corp.           COM 694058108           863        40       X                  08                  40
Paging Network, Inc. -                    COM 695542100       676,156   140,500       X                  02             140,500
Paine Webber Group -                      COM 695629105       608,124    13,008       X               02 08 15           13,008
PairGain Tech, Inc. -                     COM 695934109       646,300    56,200       X                 07 16            56,200
Pall Corp. -                              COM 696429307    31,860,412 1,503,151       X                               1,503,151
Pall Corp. -                              COM 696429307        17,750       800       X                  02                 800
Parametric Tech. -                        COM 699173100       911,588    65,700       X                  02              65,700
Park Place Entertainment                  COM 700690100     1,285,589   132,706       X                 02 08           132,706
Patterson Dental Co* -                    COM 703412106       787,088    22,650       X                  11              22,650
Penn-America Group, Inc.                  COM 707247102       128,650    12,400       X                  11              12,400
J.C. Penney Co., -                        COM 708160106       896,075    18,452       X              02 03 08 14         18,452
Penton Media, Inc. -                      COM 709668107       795,400    32,800       X                  16              32,800
Peoples Heritage Financial Group          COM 711147108       951,161    50,560       X               08 11 13           50,560
PepsiCo, Inc. -                           COM 713448108   100,676,891 2,812,700       X                               2,812,700
PepsiCo, Inc. -                           COM 713448108     1,317,967    34,067       X            02 03 06 08 14        34,067
Peregrine Systems -                       COM 71366Q101       413,569    16,100       X                  16              16,100
Petroleum Geo Services ADR                COM 716597109       767,550    51,600       X                  16              51,600
Petsmart Inc. -                           COM 716768106       814,875    79,500       X                 13 15            79,500
Pharmacia & Upjohn, Inc.                  COM 716941109    54,691,957 1,037,300       X                               1,037,300
Pharmacia & Upjohn, Inc.                  COM 716941109       647,663    11,400       X                 02 14            11,400
Pfizer  Inc. -                            COM 717081103    46,990,691   471,600       X                                 471,600
Pfizer  Inc. -                            COM 717081103     1,710,125    15,582       X              02 06 08 14         15,582
Philip Morris Cos In -                    COM 718154107    72,085,166 1,914,700       X                               1,914,700
                                                        -------------
                                         Column Total     367,864,223
</TABLE>


                                 Page 15 of 21
<PAGE>   16
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Philip Morris Companies, Inc.             COM 718154107     2,476,676    61,628       X         01 02 03 06 08 14 15     61,628
Photronics, Inc. -                        COM 719405102       904,050    36,900       X                  16              36,900
Piedmont Natural Gas Co., Inc.            COM 720186105       348,600    11,200       X                  11              11,200
Pier 1 Imports, Inc. -                    COM 720279108     1,975,500   175,600       X                 02 15           175,600
Pierce Leahy Corp. -                      COM 720722107       382,656    15,500       X                  15              15,500
Pinnacle Holdings, Inc.*                  COM 72346N101       955,500    39,000       X                  15              39,000
Pitney Bowes, Inc. -                      COM 724479100       327,675     5,100       X                 02 03             5,100
Pogo Producing Co. -                      COM 730448107       335,250    18,000       X                  15              18,000
Polaris Industries, Inc.                  COM 731068102       878,700    20,200       X                  02              20,200
Polycom Inc -                             COM 73172K104       495,300    12,700       X               05 07 15           12,700
Portal Software, Inc -                    COM 736126103       301,031     6,500       X                  15               6,500
Powerwave Tech. Inc.*                     COM 739363109     1,280,325    39,700       X               12 15 16           39,700
Powertel, Inc. -                          COM 73936C109       639,326    21,400       X                 07 16            21,400
Premark Internationa l Inc.               COM 740459102    13,271,250   353,900       X                                 353,900
Premier Parks, Inc. -                     COM 740540208     1,271,550    34,600       X               10 12 16           34,600
Primex Technologies, Inc.                 COM 741597108       787,031    36,500       X                  11              36,500
Prime Hospitality Cp -                    COM 741917108       560,400    46,700       X                  11              46,700
Pride Intl. Inc. -                        COM 741932107       577,769    54,700       X                  11              54,700
Priority Healthcare Corp.                 COM 74264T102       736,575    21,350       X               10 11 15           21,350
Procter & Gamble Co. -                    COM 742718109    20,634,722   272,200       X                                 272,200
Procter & Gamble Co. -                    COM 742718109     1,592,131    17,839       X              02 03 06 08         17,839
Profit Recovery Group Intl, Inc.          COM 743168106       746,355    15,775       X                 11 15            15,775
Project Software -                        COM 74339P101       609,375    19,500       X                  02              19,500
Provident Cos., Inc. -                    COM 743862104    66,498,840 1,733,400       X                               1,733,400
Provident Cos., Inc. -                    COM 743862104        41,200     1,030       X                 02 08             1,030
Providian Corporatio -                    COM 74406A102       593,725     6,350       X              02 06 12 15          6,350
Proxim, Inc. -                            COM 744284100     1,160,000    20,000       X                  15              20,000
QLT PhotoTherapeutic Inc.*                COM 746927102       660,000    12,000       X                  15              12,000
QRS Corp. -                               COM 74726X105     1,474,200    18,900       X                  16              18,900
Quaker Oats Co. -                         COM 747402105   178,342,523 2,779,800       X                               2,779,800
Quaker Oats Co. -                         COM 747402105        59,738       900       X                  02                 900
Quanta Services, Inc -                    COM 74762E102       888,800    20,200       X               10 11 15           20,200
Queens County Bancorp Inc.                COM 748242104       407,116    12,575       X                  11              12,575
Quest Diagnostics Inc.                    COM 74834L100    30,713,724 1,247,324       X                               1,247,324
Quest Diagnostis, Inc.                    COM 74834L100     1,527,525    55,800       X                  02              55,800
RPM, Inc. -                               COM 749685103       951,981    67,100       X                  02              67,100
Radian Group Inc. -                       COM 750236101       605,275    12,400       X                 07 15            12,400
Radiant Systems, Inc -                    COM 75025N102       678,300    47,600       X                  16              47,600
Ralstn-Ralstn Purina -                    COM 751277302    90,107,102 3,257,700       X                               3,257,700
Ralstn-Ralstn Purina -                    COM 751277302       291,226     9,568       X               02 08 14            9,568
Range Resources Corp.                     COM 75281A109       467,338    76,300       X                  02              76,300
Raytheon Co. Class B -                    COM 755111408       921,913    13,100       X               01 02 15           13,100
Realty Information Group, Inc.            COM 75612B107       722,100    16,600       X                 10 15            16,600
Reinsurance Group of America, Inc.        COM 759351208       608,025    18,150       X                  16              18,150
Reliance Bancorp Inc -                    COM 759451107       370,175    13,400       X                  11              13,400
Reliance Gp Hldgs In -                    COM 759464100     1,227,188   165,000       X                  02             165,000
Reliant Energy, Inc. -                    COM 75952J10        282,328    10,220       X               02 08 14           10,220
Remedy Corp. -                            COM 759548100       860,000    32,000       X                  16              32,000
Renaissance Worldwide, Inc.               COM 75968A109       224,720    28,200       X                  02              28,200
                                                        -------------
                                         Column Total     432,772,806
</TABLE>


                                 Page 16 of 21
<PAGE>   17
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Renal Care Group -                        COM 759930100       760,725    29,400       X                  16              29,400
Rent-A-Center Inc. -                      COM 76009N100       960,000    40,000       X                  02              40,000
Research In Motion Ltd.                   COM 760975102       607,500    30,000       X                  15              30,000
Respironics, Inc. -                       COM 761230101       508,200    33,600       X                  11              33,600
The Reynolds and Reynolds Co.             COM 761695105       699,375    30,000       X                  14              30,000
Ritchie Brothers Auctioneers, Inc.        COM 767744105     1,715,625    45,000       X                  02              45,000
Rite Aid Corp. -                          COM 767754104       534,363    21,700       X                 02 14            21,700
Rohm & Haas Co. -                         COM 775371107    25,394,489   644,272       X                                 644,272
Rohm & Haas Co. -                         COM 775371107       247,213     5,766       X                 02 08             5,766
Roper Industries, Inc.                    COM 776696106     2,630,400    82,200       X                 02 11            82,200
Rowan Companies -                         COM 779382100     2,739,814   148,600       X                 02 15           148,600
Royal Dutch Petro Co -                    COM 780257804     1,128,362    18,728       X               02 06 08           18,728
Ruddick Corp. -                           COM 781258108       982,000    49,100       X                  11              49,100
SBC Communications, Inc.                  COM 78387G103     1,587,228    27,366       X               02 08 14           27,366
SCI Systems, Inc. -                       COM 783890106       403,750     8,500       X                  11               8,500
SCPIE Holdings, Inc. -                    COM 78402P104       610,088    18,700       X                  02              18,700
SFX Entertainment, Inc.                   COM 784178105       287,883     4,325       X               05 11 15            4,325
SM&A Corporation -                        COM 784432106       202,825    26,600       X                  11              26,600
SPSS, Inc. -                              COM 78462K102       256,875    10,000       X                                  10,000
SOS Staffing Svcs. Inc.                   COM 78462X104       117,075    22,300       X                  11              22,300
Safeguard Scientifics Inc.                COM 786449108       310,000     5,000       X                  16               5,000
Safety-Kleen Corp. -                      COM 78648R203     2,503,516   138,125       X                 02 05           138,125
Safeway, Inc. -                           COM 786514208     1,039,787    21,948       X                                  21,948
Safeway Inc. -                            COM 786514208       464,013     9,374       X                 02 08             9,374
SAGA Systems, Inc. -                      COM 786610105       369,750    29,000       X                 02 07            29,000
St. Jude Medical Inc -                    COM 790849103    54,377,028 1,599,000       X                               1,599,000
St. Jude Medical Inc -                    COM 790849103        81,938     2,300       X                 01 02             2,300
Saks Incorporated -                       COM 79377W108       542,850    18,800       X                  02              18,800
Santa Fe Snyder Corp -                    COM 80218K105     1,354,963   177,700       X                  02             177,700
Sara Lee Corp. -                          COM 803111103    79,728,413 3,514,200       X                               3,514,200
Sara Lee Corp. -                          COM 803111103       602,580    26,560       X               02 08 14           26,560
Sawtek, Inc.                              COM 805468105     1,160,638    25,300       X                 10 15            25,300
Henry Schein Inc. -                       COM 806407102       554,531    17,500       X                 13 16            17,500
Schering-Plough Corp -                    COM 806605101   299,797,396 6,198,600       X                               6,198,600
Schering-Plough Corp -                    COM 806605101     1,203,100    22,700       X               02 06 14           22,700
Schlumberger Ltd. -                       COM 806857108       946,000    16,000       X                                  16,000
Schlumberger Ltd. -                       COM 806857108       484,025     7,600       X               02 06 14            7,600
Schultz Sav-o Stores Inc.                 COM 808196109       312,000    19,500       X                  11              19,500
Charles Schwab Corp. (The)                COM 808513105       412,032     3,750       X               02 06 12            3,750
Scientific-Atlanta -                      COM 808655104       554,400    15,400       X              02 06 10 16         15,400
Scor Sponsored ADR -                      COM 80917Q106       690,138    13,700       X                  09              13,700
E.W.Scripps Co. -                         COM 811054204    50,318,882 1,082,414       X                               1,082,414
Seagram Co. Ltd. -                        COM 811850106       522,137    10,365       X               02 06 08           10,365
Sears Roebuck & Co. -                     COM 812387108     1,107,779    24,859       X              02 08 14 15         24,859
Security Dynamics Technologies, Inc.      COM 814208104     2,018,750    95,000       X                 02 15            95,000
Sensormatic Electronics Corp.             COM 817265101       248,088    17,800       X                  02              17,800
Sepracor Inc. -                           COM 817315104       983,125    12,100       X                 15 16            12,100
Sequent Computer Systems, Inc.            COM 817338106       912,350    51,400       X                 02 07            51,400
Service Corp Intl -                       COM 817565104    15,288,350   794,200       X                                 794,200
                                                        -------------
                                         Column Total     561,262,342
</TABLE>


                                 Page 17 of 21
<PAGE>   18
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Service Corp Intl -                       COM 817565104       151,132     7,851       X                 02 08             7,851
Shared Med Sys Corp. -                    COM 819486101       215,325     3,300       X                 02 15             3,300
Sherwin-Williams Co. -                    COM 824348106       248,063     9,000       X                                   9,000
Sherwin Williams Co. -                    COM 824348106        36,186     1,304       X                 02 08             1,304
Shopko Stores, Inc. -                     COM 824911101       391,500    10,800       X                 07 15            10,800
Sierra Pacific Resources                  COM 826425100     1,273,125    35,000       X                 02 11            35,000
Signet Group PLC -                        COM 82668L872     1,552,725    61,800       X                  09              61,800
Silicon Valley Group Inc.                 COM 827066101       490,925    29,200       X                  02              29,200
Simpson Manufacturing Co.                 COM 829073105       498,750    10,500       X                  11              10,500
Smith International, Inc.                 COM 832110100     1,808,738    41,640       X              08 11 15 16         41,640
Snyder Communications, Inc.               COM 832914105     1,034,900    31,600       X                 02 12            31,600
Southdown Inc. -                          COM 841297104       539,700     8,400       X                 01 15             8,400
Spacelabs Medical, Inc.                   COM 846247104       715,363    37,900       X                  02              37,900
Sprint Corp. (Fon Group)                  COM 852061100   108,410,188 2,050,600       X                               2,050,600
Sprint Corp. -                            COM 852061100       734,728    13,912       X              02 03 06 08         13,912
Sprint PCS Group -                        COM 852061506       618,844    10,500       X                                  10,500
Sprint PCS Group -                        COM 852061506       294,651     5,158       X               02 03 08            5,158
Staffmark, Inc. -                         COM 852389105       139,435    13,900       X                  02              13,900
Starbucks Corp. -                         COM 855244109       304,256     8,100       X                  15               8,100
State Street Corp. -                      COM 857477103       435,413     5,100       X                 02 15             5,100
Sterling Bancshares Inc. / Texas          COM 858907108       693,159    51,825       X                  11              51,825
Sterling Commerce -                       COM 859205106    45,223,500 1,239,000       X                               1,239,000
Sterling Commerce, Inc.                   COM 859205106     1,273,850    34,900       X                  02              34,900
Sterling Software, -                      COM 859547101       459,025    17,200       X                  02              17,200
Stewart Enterprises, Inc. Class A         COM 860370105       843,169    57,900       X                 02 13            57,900
Stone Energy Corp. -                      COM 861642106     1,711,951    40,400       X               07 15 16           40,400
Storage Technology Corp.                  COM 862111200       354,900    15,600       X                 03 04            15,600
Strayer Education -                       COM 863236105       573,856    18,700       X                  16              18,700
Summit Bancorp -                          COM 866005101       560,455    13,404       X               02 08 15           13,404
Sun Microsystems Inc -                    COM 866810104       897,166    13,026       X              02 03 06 08         13,026
Suncor Energy, Inc. -                     COM 867229106       349,563     8,500       X                  14               8,500
Sungard Data System -                     COM 867363103    50,794,350 1,472,300       X                               1,472,300
Sunrise Assisted Living, Inc.             COM 86768K106       653,034    18,725       X                 11 16            18,725
Sunterra Corp -                           COM 86787D109       756,806    54,300       X                  16              54,300
Swift Transportation Company, Inc.        COM 870756103       808,500    36,750       X                  16              36,750
Sybase Inc. -                             COM 871130100     1,526,800   138,800       X                  02             138,800
Sysco Corp. -                             COM 871829107    44,301,375 1,486,000       X                               1,486,000
Sysco Corp. -                             COM 871829107        65,588     2,200       X                  02               2,200
TNP Enterprises, Inc.                     COM 872594106       511,125    14,100       X                  11              14,100
Talbots Inc. -                            COM 874161102       610,000    16,000       X                  15              16,000
Tandy Corp. -                             COM 875382103       532,738    10,900       X               02 12 15           10,900
Tech Data Corp. -                         COM 878237106     1,518,525    39,700       X                  02              39,700
Technology Solutions Co.                  COM 87872T108       618,475    57,200       X                  02              57,200
Telcom Semiconductor , Inc.               COM 87921P107       224,263    23,300       X                  16              23,300
Tellabs Inc. -                            COM 879664100       499,963     7,400       X               02 03 06            7,400
Tesoro Petroleum Corp.                    COM 881609101       723,563    45,400       X                 02 07            45,400
Tetra Tech, Inc. -                        COM 88162G103     1,031,250    62,500       X                  02              62,500
Texaco, Inc. -                            COM 881694103    59,593,837 1,055,000       X                               1,055,000
Texaco, Inc. -                            COM 881694103       248,750     3,980       X                 02 08             3,980
                                                        -------------
                                         Column Total     337,853,479
</TABLE>


                                 Page 18 of 21
<PAGE>   19
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Texas Instruments In -                    COM 882508104       632,200     4,360       X               02 06 08            4,360
Texas Regl Bancshares Class A             COM 882673106       489,375    18,000       X                  11              18,000
Textron, Inc. -                           COM 883203101       329,250     4,000       X                 02 03             4,000
Tiffany & Co. -                           COM 886547108   141,596,303 1,486,500       X                               1,486,500
Tiffany & Co. -                           COM 886547108        86,850       900       X                 06 12               900
Time Warner Inc. -                        COM 887315109       588,000     8,000       X                  02               8,000
Titan Intl. Inc. -                        COM 88830M102     1,543,750   130,000       X                  02             130,000
Toro Co. The                              COM 891092108       527,625    13,400       X                  02              13,400
Total Renal Care -                        COM 89151A107     1,400,625    90,000       X                  02              90,000
Transaction Sys Architects Cl A           COM 893416107       799,500    20,500       X                  16              20,500
Transportation Tech. Ind., Inc.           COM 89388T101     6,259,300   472,400       X                                 472,400
TranSwitch Corp                           COM 894065101     4,301,650    90,800       X              02 07 10 15         90,800
Tricon Global Restaurant                  COM 895953107       259,801     4,800       X               02 06 15            4,800
Trigon Healthcare -                       COM 89618L100       989,400    27,200       X                 06 11            27,200
Trimble Navigation Ltd.*                  COM 896239100       213,725    16,600       X                  02              16,600
Trinity Indstrs Inc -                     COM 896522109    38,841,555 1,208,800       X                               1,208,800
TriStar Aerospace Co -                    COM 89674L101       712,800    86,400       X                 02 16            86,400
True North Communications, Inc.           COM 897844106     2,370,000    79,000       X                 02 07            79,000
Tuboscope Vetco International Corp.       COM 898600101       265,538    19,400       X                 10 11            19,400
Tut Systems, Inc.* -                      COM 901103101       254,475     5,200       X                  15               5,200
Tyco International Ltd.                   COM 902124106       943,994     9,963       X               02 06 08            9,963
Ucar International Inc.                   COM 90262K109     1,090,800    43,200       X                 02 15            43,200
U.S. Bancorp NEW -                        COM 902973106       345,100    10,150       X               01 02 08           10,150
USEC Inc. -                               COM 90333E108       602,438    40,500       X                 03 14            40,500
UTI Energy Corp. -                        COM 903387108       422,344    25,500       X                  11              25,500
Unilever N.V. -                           COM 904784709       334,451     4,795       X               02 06 08            4,795
Union Pacific Corp. -                     COM 907818108       783,020    13,428       X               02 08 14           13,428
Uniphase Corp. -                          COM 909149106       249,000     1,500       X                  15               1,500
United Illuminating Co.                   COM 910637107       848,750    20,000       X                  02              20,000
U S WEST, Inc. -                          COM 91273H101       921,200    15,680       X               02 08 14           15,680
United Stationers, Inc.                   COM 913004107     1,262,800    57,400       X                 07 11            57,400
United Technlgs Corp -                    COM 913017109       243,738     3,400       X                 02 06             3,400
Universal Health Serv, Inc - Class B      COM 913903100     1,064,825    22,300       X                 11 13            22,300
Value America, Inc. -                     COM 92038N102       250,800    13,200       X                  16              13,200
Varco International, Inc.                 COM 922126107     1,312,500   120,000       X                  02             120,000
Varian, Inc. -                            COM 922206107       666,900    49,400       X                  02              49,400
Varian Semiconductor Equipmnt             COM 922207105       943,500    55,500       X                  02              55,500
Ventas, Inc. -                            COM 92276F100        78,475    14,600       X                 01 04            14,600
Venator Group, Inc. -                     COM 922944103     2,066,625   198,000       X                  02             198,000
Veritas Software Corp.                    COM 923436109       356,016     3,750       X              05 11 12 15          3,750
Verity, Inc.* -                           COM 92343C106     1,723,163    31,800       X                  15              31,800
VerticalNet, Inc. -                       COM 92532L107       660,713     6,300       X                 10 16             6,300
Viacom, Inc. Class B                      COM 925524308       233,200     5,300       X                 02 06             5,300
Viatel, Inc. -                            COM 925529208     2,744,513    48,900       X               10 15 07           48,900
Vistana, Inc. -                           COM 92839P108       882,000    56,000       X                  16              56,000
Vulcan Materials Co. -                    COM 929160109    54,140,477 1,284,600       X                               1,284,600
Vulcan Materials Co.                      COM 929160109       289,500     6,000       X                  14               6,000
Wicor Inc. -                              COM 929253102       447,000    16,000       X                  11              16,000
Wabash National Corp.                     COM 929566107       809,875    41,800       X                  02              41,800
                                                        -------------
                                         Column Total     279,179,437
</TABLE>


                                 Page 19 of 21
<PAGE>   20
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Wal-Mart Stores Inc. -                    COM 931142103    44,029,216 1,035,000       X                               1,035,000
Wal-Mart Stores Inc. -                    COM 931142103     1,925,851    39,914       X               02 06 08           39,914
Wallace Computer Services, Inc.           COM 932270101     1,132,500    45,300       X                  11              45,300
Warner-Lambert Co. -                      COM 934488107   329,682,745 5,123,700       X                               5,123,700
Warner-Lambert Co. -                      COM 934488107       884,601    12,751       X              02 03 06 08         12,751
Washington Mut Inc. -                     COM 939322103       322,478     9,116       X                 02 08             9,116
Washington Post Cl B -                    COM 939640108    30,978,110    64,500       X                                  64,500
Washington Post Cl B -                    COM 939640108         6,453        12       X                  08                  12
Waste Management Inc (NEW)                COM 94106L109    29,226,563   543,750       X                                 543,750
Waste Management Inc (NEW)                COM 94106L109       662,577    12,327       X                 02 08            12,327
Watsco, Inc. -                            COM 942622200       283,288    17,300       X                 02 07            17,300
Webster Financial Corp.                   COM 947890109     2,519,913    92,900       X                 02 11            92,900
Wellman, Inc. -                           COM 949702104       242,250    15,200       X                  02              15,200
Wells Fargo Company -                     COM 949746101   147,525,843 3,882,000       X                               3,882,000
Wells Fargo & Co. -                       COM 949746101     1,466,582    34,306       X            01 02 06 08 15        34,306
West Pharmaceutical Services, Inc.        COM 955306105       887,050    22,600       X                  02              22,600
Weyerhaeuser Co. -                        COM 962166104       453,750     6,600       X               02 06 14            6,600
Whirlpool Corp -                          COM 963320106       244,348     3,302       X               02 03 08            3,302
Whitehall Jewellers, Inc.                 COM 965063100     1,868,125    70,000       X                  02              70,000
Whitman Corp. -                           COM 96647R107       360,000    20,000       X                                  20,000
Whole Food Market, Inc.                   COM 966837106     1,014,119    21,100       X                 11 15            21,100
Willbros Group, Inc. -                    COM 969199108       227,800    26,800       X                  11              26,800
Williams Cos. (The) -                     COM 969457100    89,594,063 2,105,000       X                               2,105,000
The Williams Companies, Inc.              COM 969457100       463,931    10,900       X                 02 14            10,900
WinStar Communications, Inc.              COM 975515107       370,500     7,600       X               10 11 15            7,600
Wolverine Tube, Inc. -                    COM 978093102       537,675    21,400       X                  02              21,400
Wolverine World Wide, Inc.                COM 978097103       627,200    44,800       X                  02              44,800
Woodhead Indstrs,Inc -                    COM 979438108     4,483,500   366,000       X                                 366,000
Xilinx Inc. -                             COM 983919101       267,587     4,674       X              06 08 12 15          4,674
Xerox Corp. -                             COM 984121103     1,399,781    23,700       X            01 02 03 06 14        23,700
Xomed Surgical Product, Inc.              COM 98412V107     1,270,744    26,100       X                 10 15            26,100
Xoom.com, Inc. -                          COM 98413F101       387,975     7,390       X                  16               7,390
Yellow Corp. -                            COM 985509108     1,373,850    77,400       X                  02              77,400
Zany Brainy, Inc. -                       COM 98906Q101       384,594    39,700       X                  15              39,700
Zebra Technologies Corp.                  COM 989207105    13,875,938   361,000       X                                 361,000
Zebra Technologies Corp. Class A          COM 989207105     1,288,041    33,510       X                  11              33,510
Ziff-Davis, Inc. -                        COM 989511100     1,715,106   111,100       X                  02             111,100
Zions Bancorporation -                    COM 989701107       381,000     6,000       X                  15               6,000
DaimlerChrysler AG -                      COM D1668R123       232,675     2,618       X                 06 14             2,618
Annuity and Life RE (Holdings) Ltd.       COM G03910109     2,198,876    98,000       X              02 05 10 11         98,000
Central European Media Entrprs Cl A       COM G20045103       184,600    28,400       X                  16              28,400
Gemstar Intl. Group Ltd.                  COM G3788V106       650,869     9,975       X               11 12 15            9,975
Helen of Troy Ltd. -                      COM G4388N106       466,375    26,000       X                  02              26,000
PartnerRe Ltd. -                          COM G6852T105       441,025    11,800       X                  15              11,800
Renaissance Insuranc -                    COM G7496G103     1,554,000    42,000       X                  02              42,000
Santa Fe International Corp.              COM G7805C108       834,900    36,300       X                 02 10            36,300
Scottish Annuity & Life Holdings, Ltd.*   COM G7885T104       382,700    35,600       X                  11              35,600
Terra Nova (Bermuda) Holdings Ltd.        COM G87615103     1,562,375    58,000       X                  02              58,000
XL Capital Ltd Class A                    COM G98255105     1,856,534    32,859       X               02 08 11           32,859
                                                        -------------
                                         Column Total     724,730,571
</TABLE>


                                 Page 20 of 21
<PAGE>   21
FORM 13F                                                           JUNE 30, 1999


          NAME OF REPORTING MANAGER: NATIONWIDE ADVISORY SERVICES, INC.


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
            ITEM 1:                 ITEM 2:   ITEM 3:        ITEM 4:   ITEM 5:        ITEM 6:         ITEM 7:          ITEM 8:
                                                                                   INVESTMENT
                                                                                   DISCRETION                     VOTING AUTHORITY
                                                                               --------------------             --------------------
                                                                                     (b)
                                                                                   SHARED-
                                                                                     AS
                                                                                   DEFINED
                                                             FAIR    SHARES OF       IN     (c)       MANAGERS
                                      TITLE    CUSIP        MARKET   PRINCIPAL (a) INSTR. SHARED -      SEE     (a)      (b)    (c)
         NAME OF ISSUER             OF CLASS  NUMBER        VALUE      AMOUNT  SOLE  V    OTHER       INSTR. V  SOLE   SHARED  NONE
- ------------------------------------------------------------------------------------------------------------------------------------

<S>                                   <C>     <C>       <C>           <C>       <C> <C>   <C>   <C>               <C>  <C>      <C>
Check Point Software Tech.                COM M2246510        439,725     8,200       X               12 13 15            8,200
Galileo Technology Ltd.                   COM M47298100     1,585,938    35,000       X               10 15 16           35,000
Gilat Satellite Networks                  COM M51474100     1,023,750    19,500       X                  16              19,500
ASM Lithography Holding NV                COM N07059111       326,563     5,500       X                 12 15             5,500
Chicago Bridge & Iron Co. N.V.            COM N19808109       452,969    32,500       X                  02              32,500
Sun International Hotels LTD.             COM P8797T133     1,320,125    29,500       X                  02              29,500
Royal Caribbean Cruises                   COM V7780T103       245,000     5,600       X                 06 15             5,600
Flextronics International Ltd.            COM Y2573F102       801,975    14,450       X                 11 15            14,450
                                                        -------------
                                         Column Total       6,196,044
                                                        =============
                                         Grand Total    8,012,048,636
                                                        =============
</TABLE>

                                 Page 21 of 21


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