<TABLE>
FORM 13F INFORMATION TABLE
VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE
------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- --------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
ABITIBI CONSOLIDATED COM 003924107 27934 2979577 SH SOLE 2979577
ACTEL CORP. COM 004934105 17925 392875 SH SOLE 392875
ACTUANT CORPORATION COM 038225108 344 10280 SH SOLE 10280
ADVANCED FIBRE COMMUNICATIONS COM 00754A105 13867 306035 SH SOLE 306035
AEROFLEX COM 007768104 22040 443575 SH SOLE 443575
AGILENT TECHNOLOGIES COM 00846U101 37437 507623 SH SOLE 507623
ALBANY MOLECULAR RESEARCH COM 012423109 14078 258615 SH SOLE 258615
ALBERTSONS COM 013104104 1662 50000 SH SOLE 50000
ALCOA COM 013817101 12348 425782 SH SOLE 425782
ALEXANDRIA R E EQUITIES INC COM 015271109 251 7320 SH SOLE 7320
ALLSCRIPTS COM 019886100 9960 433025 SH SOLE 433025
ALLTEL CORP COM 020039103 66407 1072164 SH SOLE 1072164
ALTEON WEBSYSTEMS COM 02145A109 35053 350310 SH SOLE 350310
AMBASSADORS INTL COM 023178106 198 12600 SH SOLE 12600
AMERICAN GENERAL CORP COM 026351106 55312 906758 SH SOLE 906758
AMERICAN HOME PRODUCTS CORP COM 026609107 40454 688575 SH SOLE 688575
AMERICREDIT CORP COM 03060R101 266 15640 SH SOLE 15640
AMRESCO CAPITAL TRUST COM 031919103 1012 100000 SH SOLE 100000
ANADIGICS COM 032515108 15951 468274 SH SOLE 468274
APPLIED INNOVATION COM 037916103 236 22220 SH SOLE 22220
APTARGROUP INC COM COM 038336103 354 13120 SH SOLE 13120
ARCH CHEMICALS COM 03937R102 277 12680 SH SOLE 12680
ARDEN REALTY INC. COM 039793104 200 8525 SH SOLE 8525
ASPEN TECHNOLOGY COM 045327103 11064 287375 SH SOLE 287375
AURORA BIOSCIENCES COM 051920106 7929 116275 SH SOLE 116275
AVALON BAY COMMUNITIES COM 053484101 1315 31500 SH SOLE 31500
AVANT CORP COM 053487104 265 14120 SH SOLE 14120
BAKER HUGHES COM 057224107 49165 1536394 SH SOLE 1536394
BANK OF AMER CORP COM 060505104 1075 25000 SH SOLE 25000
BARR LABS INC COM COM 068306109 6543 146000 SH SOLE 146000
BAUSCH & LOMB COM 071707103 42185 545198 SH SOLE 545198
BAXTER INTL COM 071813109 84712 1204797 SH SOLE 1204797
BEL FUSE CL A COM 077347201 387 14330 SH SOLE 14330
BELL ATLANTIC COM 077853109 52944 1041953 SH SOLE 1041953
BEMIS INC COM COM 081437105 247 7340 SH SOLE 7340
BINDLEY WESTERN INDUSTRIES COM 090324104 10586 400400 SH SOLE 400400
BISYS GROUP COM 055472104 18970 308450 SH SOLE 308450
BOSTON PROPERTIES COM 101121101 1186 30700 SH SOLE 30700
BP AMOCO PLC -SPONS ADR COM 055622104 2376 42000 SH SOLE 42000
BRISTOL-MYERS SQUIBB COM 110122108 38753 665296 SH SOLE 665296
BROOKS AUTOMATION COM 11434A100 19011 297335 SH SOLE 297335
CABOT INDUSTRIAL TRUST COM 127072106 982 49900 SH SOLE 49900
CAL DIVE INTERNATIONAL INC COM 127914109 385 7110 SH SOLE 7110
CAMINUS CORP. COM 133766105 14364 586300 SH SOLE 586300
CAREER EDUCATION CORP. COM 141665109 7362 151800 SH SOLE 151800
CENTRAL GARDEN & PET COM 153527106 127 14115 SH SOLE 14115
CHASE MANHATTAN COM 16161A108 82251 1785642 SH SOLE 1785642
CINAR CORP. SUB VTG SH B COM 171905300 0 29800 SH SOLE 29800
CITIGROUP COM 172967101 42883 711752 SH SOLE 711752
CLARCOR COM 179895107 202 10180 SH SOLE 10180
COASTAL CORP. COM 190441105 54977 903118 SH SOLE 903118
COLUMBIA ENERGY GROUP COM 197648108 3660 55775 SH SOLE 55775
COMMUNITY FIRST BANKSHARES COM 203902101 211 12910 SH SOLE 12910
COMMUNITY HEALTH SYSTEMS COM 203668108 15603 963900 SH SOLE 963900
COMPUTER TASK GROUP INC COM 205477102 150 29700 SH SOLE 29700
CONCURRENT COMPUTER CORP COM 206710204 656 50000 SH SOLE 50000
CONOCO INC. - CL A COM 208251306 52625 2392060 SH SOLE 2392060
CONOCO, INC. - CL B COM 208251405 780 31754 SH SOLE 31754
CONSTELLATION ENERGY GROUP COM 210371100 46748 1435638 SH SOLE 1435638
CORPORATE EXECUTIVE BOARD COM 21988R102 30164 503775 SH SOLE 503775
CROWN CASTLE INTL COM 228227104 14593 399800 SH SOLE 399800
CTS COM 126501105 216 4810 SH SOLE 4810
CULLEN FROST BANKERS COM 229899109 2855 108485 SH SOLE 108485
CYTEC INDUSTRIES COM 232820100 278 11260 SH SOLE 11260
DIAMOND TECHNOLOGY PARTNERS COM 252762109 27127 308261 SH SOLE 308261
DIGITAS INC COM 25388K104 10848 665025 SH SOLE 665025
DITECH COMMUNICATIONS COM 25500M103 28768 304220 SH SOLE 304220
DOCUMENTUM COM 256159104 28298 316625 SH SOLE 316625
DOMINION RES INC VA COM COM 25746U109 248 5795 SH SOLE 5795
DOW JONES & CO. COM 260561105 28489 388928 SH SOLE 388928
DU PONT DE NEMOURS COM 263534109 23628 540062 SH SOLE 540062
DUKE-WEEKS REALTY CORP. COM 264411505 1204 53820 SH SOLE 53820
DUPONT PHOTOMASKS COM 26613X101 17645 257585 SH SOLE 257585
EATON COM 278058102 28453 424675 SH SOLE 424675
EBENX, INC. COM 278668108 4319 203825 SH SOLE 203825
ECLIPSYS COM 278856109 3260 434713 SH SOLE 434713
EDWARDS LIFESCIENCES CP COM 28176E108 277 14980 SH SOLE 14980
ELECTRONICS FOR IMAGNG COM 286082102 14138 558540 SH SOLE 558540
EMERSON ELECTRIC COM 291011104 1841 30500 SH SOLE 30500
EMMIS COMMUNICATIONS COM 291525103 30273 731680 SH SOLE 731680
EMULEX CORP. COM 292475209 9380 142800 SH SOLE 142800
ENDOCARE COM 29264P104 15742 777400 SH SOLE 777400
ENSCO INTERNATIONAL COM 26874Q100 16208 452575 SH SOLE 452575
ESPEED INC. - CL A COM 296643109 22033 507225 SH SOLE 507225
EXAR CORP. COM 300645108 19601 224810 SH SOLE 224810
EXTREME NETWORKS COM 30226D106 47506 450294 SH SOLE 450294
EXXON MOBIL CORP. COM 30231G102 56706 722365 SH SOLE 722365
FANNIE MAE COM 313586109 2363 45275 SH SOLE 45275
FED HOME LOAN MTG COM 313400301 68963 1702796 SH SOLE 1702796
FINANCIAL FEDERAL CORP COM 317492106 202 11610 SH SOLE 11610
FIRST SECURITY COM 336294103 39962 2946480 SH SOLE 2946480
FLEET BOSTON FINANCIAL CORP COM 339030108 71180 2093542 SH SOLE 2093542
FOCAL COMMUNICATIONS COM 344155106 16194 447495 SH SOLE 447495
FORD MOTOR COM 345370100 31553 733782 SH SOLE 733782
GARDNER DENVER COM 365558105 243 13570 SH SOLE 13570
GRANT PRIDECO INC COM 38821G101 15805 632190 SH SOLE 632190
GTE CORP. COM 362320103 19400 311640 SH SOLE 311640
HARTFORD FINL SVCS COM 416515104 31089 555784 SH SOLE 555784
HEALTHCARE RLTY TR COM 421946104 1580 92587 SH SOLE 92587
HEIDRICK & STRUGGLES INTL COM 422819102 48330 765625 SH SOLE 765625
HEWLETT-PACKARD COM 428236103 21064 168681 SH SOLE 168681
HOME PPTYS N Y COM 437306103 220 7320 SH SOLE 7320
HONEYWELL INTL COM 438516106 38959 1156473 SH SOLE 1156473
HOUSEHOLD INTL COM 441815107 41289 993414 SH SOLE 993414
HUDSON UNITED BANCORP COM 444165104 287 12800 SH SOLE 12800
IBM COM 459200101 29943 273298 SH SOLE 273298
ICU MEDICAL INC COM 44930G107 346 12800 SH SOLE 12800
ILLUMINET HOLDINGS COM 452334105 16666 327595 SH SOLE 327595
INET TECHNOLOGIES INC COM 45662V105 25529 470580 SH SOLE 470580
INTEGRATED SILICON SOLUTION COM 45812P107 18645 490650 SH SOLE 490650
INTERMEDIA COMMUNICATIONS COM 458801107 13213 444135 SH SOLE 444135
INVITROGEN COM 46185R100 10922 145235 SH SOLE 145235
ITC DELTACOM COM 45031T104 222 9960 SH SOLE 9960
JACK IN THE BOX COM 466367109 9908 402350 SH SOLE 402350
KERR-MCGEE CORP. COM 492386107 55489 941481 SH SOLE 941481
KIMBERLY CLARK CORP COM 494368103 85772 1494935 SH SOLE 1494935
KINDER MORGAN ENERGY PRTNRS COM 494550106 1198 30000 SH SOLE 30000
LABRANCHE & CO. COM 505447102 14403 1001975 SH SOLE 1001975
LIMITED, INC. COM 532716107 28363 1311586 SH SOLE 1311586
LONE STAR TECHNOLOGIES COM 542312103 414 8960 SH SOLE 8960
LOUIS DREYFUS NATURAL GAS COM 546011107 397 12680 SH SOLE 12680
LTC PROPERTIES COM 502175102 297 50000 SH SOLE 50000
LUCENT TECHNOLOGIES COM 549463107 32699 551887 SH SOLE 551887
MAXTOR CORP. COM 577729205 144 13670 SH SOLE 13670
MAYTAG COM 578592107 1106 30000 SH SOLE 30000
MBNA CORP. COM 55262L100 56949 2099500 SH SOLE 2099500
MCGRAW HILL COMPANIES INC COM 580645109 80989 1499793 SH SOLE 1499793
MCN ENERGY GROUP COM 55267J100 2217 103700 SH SOLE 103700
MDU RESOURCES GROUP COM 552690109 327 15110 SH SOLE 15110
MEDIACOM COMMUNICATIONS COM 58446K105 19123 1243800 SH SOLE 1243800
MEDITRUST CORP PAIRED CTF NEW COM 58501T306 172 46000 SH SOLE 46000
MERCURY INTERACTIVE COM 589405109 28505 294630 SH SOLE 294630
MICROFINANCIAL COM 595072109 458 45830 SH SOLE 45830
MICROMUSE COM 595094103 13458 81325 SH SOLE 81325
MICROSTRATEGY, INC. COM 594972101 5631 187715 SH SOLE 187715
MINN MINING & MFG COM 604059105 44702 541845 SH SOLE 541845
MONTANA POWER COM 612085100 58603 1659559 SH SOLE 1659559
MOTOROLA COM 620076109 55653 1914953 SH SOLE 1914953
MSC INDUSTRIAL DIRECT COM 553530106 11579 553030 SH SOLE 553030
NATIONAL-OILWELL COM 637071101 16562 503800 SH SOLE 503800
NATIONWIDE FINL SVCS CL A COM 638612101 13670 415825 SH SOLE 415825
NATL SEMICONDUCTOR COM 637640103 68735 1211197 SH SOLE 1211197
NETRO CORP. COM 64114R109 13951 243150 SH SOLE 243150
NEW CENTURY ENERGIES COM 64352U103 768 25600 SH SOLE 25600
NEW ERA OF NETWORKS COM 644312100 22924 539400 SH SOLE 539400
NISOURCE, INC. COM 65473P105 3030 162700 SH SOLE 162700
NORTEL NETWORKS CORP. COM 656568102 928 13593 SH SOLE 13593
NORTH FORK BANCORP NY COM 659424105 1755 116050 SH SOLE 116050
OAK TECHNOLOGY INC COM 671802106 23763 1102074 SH SOLE 1102074
ORATEC INTERVENTIONS COM 68554M108 8305 248825 SH SOLE 248825
OSCA, INC. COM 687836106 8102 480100 SH SOLE 480100
OTG SOFTWARE COM 671059103 2437 85325 SH SOLE 85325
OUTBACK STEAKHOUSE COM 689899102 291 9950 SH SOLE 9950
OXFORD HEALTH PLANS COM 691471106 15885 667100 SH SOLE 667100
PARK ELECTROCHEMICAL CORP COM 700416209 359 9960 SH SOLE 9960
PARLEX CORP. COM 701630105 3905 92700 SH SOLE 92700
PECO ENERGY COM 693304107 73455 1822139 SH SOLE 1822139
PEGASUS COMMUNICATIONS COM 705904100 26874 547750 SH SOLE 547750
PENTON MEDIA , INC. COM 709668107 22908 654525 SH SOLE 654525
PEREGRINE SYSTEMS COM 71366Q101 15210 438500 SH SOLE 438500
PHARMACIA CORP. COM 71713U102 1814 35090 SH SOLE 35090
PHILIP MORRIS COMPANIES COM 718154107 22610 851205 SH SOLE 851205
PIER 1 IMPORTS INC COM 720279108 271 27790 SH SOLE 27790
PINNACLE HOLDINGS COM 72346N101 19313 357650 SH SOLE 357650
PITNEY BOWES COM 724479100 58325 1458131 SH SOLE 1458131
PIXELWORKS COM 72581M107 10499 461500 SH SOLE 461500
POLYMEDICA COM 731738100 22568 521800 SH SOLE 521800
POTOMAC ELEC PWR COM 737679100 1250 50000 SH SOLE 50000
PRECISION DRILLING CP COM 74022D100 301 7780 SH SOLE 7780
PRI AUTOMATION COM 69357H106 28051 428983 SH SOLE 428983
PROLOGIS TRUST COM 743410102 1948 91400 SH SOLE 91400
PS BUSINESS PARKS COM 69360J107 234 9750 SH SOLE 9750
QLT, INC. COM 746927102 18310 236825 SH SOLE 236825
RADIAN GROUP, INC. COM 750236101 238 4590 SH SOLE 4590
RECKSON ASSOCS RLTY COM COM 75621K106 594 25000 SH SOLE 25000
REGISTER.COM COM 75914G101 6037 197535 SH SOLE 197535
RELIANT ENERGY INC COM COM 75952J108 1774 60000 SH SOLE 60000
REMEC, INC. COM 759543101 27033 645565 SH SOLE 645565
RENAL CARE GROUP INC COM COM 759930100 463 18930 SH SOLE 18930
REYNOLDS & REYNOLDS - CL A COM 761695105 3283 179870 SH SOLE 179870
ROHM & HAAS COM 775371107 34612 1003252 SH SOLE 1003252
ROWAN COS INC. COM 779382100 7361 242350 SH SOLE 242350
S1 CORPORATION COM 78463B101 9148 392395 SH SOLE 392395
SBC COMMUNICATIONS COM 78387G103 54925 1269943 SH SOLE 1269943
SCANA CORP COM 80589M102 246 10177 SH SOLE 10177
SCHERING-PLOUGH COM 806605101 67532 1337268 SH SOLE 1337268
SEMTECH CORP. COM 816850101 44186 577715 SH SOLE 577715
SERENA SOFTWARE COM 817492101 34161 752336 SH SOLE 752336
SHOPKO STORES COM 824911101 168 10950 SH SOLE 10950
SIPEX COM 829909100 482 17400 SH SOLE 17400
SL GREEN RLTY CORP COM COM 78440X101 286 10710 SH SOLE 10710
SOUTHERN CO COM COM 842587107 1166 50000 SH SOLE 50000
SOUTHWEST BANCORP TEX COM COM 84476R109 232 11160 SH SOLE 11160
SPANISH BROADCASTING SYS COM 846425882 19253 936330 SH SOLE 936330
SPINNAKER EXPLORATION COM 84855W109 16073 627240 SH SOLE 627240
SPRINT CORP. COM 852061100 39995 784224 SH SOLE 784224
STARWOOD HOTELS & RESORTS WORL COM 85590A203 2219 68150 SH SOLE 68150
STEWART & STEVENSON SERVICES COM 860342104 264 17510 SH SOLE 17510
STRATOS LIGHTWAVE COM 863100103 6052 217100 SH SOLE 217100
SUNTRUST BKS INC COM COM 867914103 1142 25000 SH SOLE 25000
SYNCOR INTL CORP-DEL COM 87157J106 9180 127500 SH SOLE 127500
TEEKAY SHIPPING COM Y8564W103 288 8750 SH SOLE 8750
THERMA- WAVE INC COM 88343A108 14537 651500 SH SOLE 651500
THOMAS & BETTS COM 884315102 765 40000 SH SOLE 40000
TRIQUINT SEMICONDUCTOR COM 89674K103 20342 212585 SH SOLE 212585
TWEETER HOME ENTERTAINMT GRP COM 901167106 22910 754250 SH SOLE 754250
U.S. AGGREGATES COM 90334D109 278 15320 SH SOLE 15320
U.S. WEST COM 91273H101 669 7800 SH SOLE 7800
UNITED THERAPEUTICS COM 91307C102 22353 206255 SH SOLE 206255
USEC, INC. COM 90333E108 694 150000 SH SOLE 150000
USX-MARATHON GROUP COM 902905827 2078 82900 SH SOLE 82900
UTI ENERGY COM 903387108 18456 459975 SH SOLE 459975
VALERO ENERGY COM 91913Y100 13699 431475 SH SOLE 431475
VISTEON CORP. COM 92839U107 791 65207 SH SOLE 65207
WEATHERFORD INTL COM 947074100 16519 414915 SH SOLE 414915
WEST MARINE COM 954235107 212 30950 SH SOLE 30950
WESTERN RES COM 959425109 1756 113300 SH SOLE 113300
WESTWOOD ONE COM 961815107 20621 604280 SH SOLE 604280
WEYERHAUSER COM 962166104 32457 754812 SH SOLE 754812
WILLIAMS COMPANIES INC COM 969457100 92707 2223846 SH SOLE 2223846
WIT SOUNDVIEW GROUP COM 977383108 9378 873600 SH SOLE 873600
WORLDCOM INC. GA COM 98157D106 44816 976910 SH SOLE 976910
WYNDHAM INTERNATIONAL COM 983101106 268 107333 SH SOLE 107333
XEROX CORP COM 984121103 27763 1337988 SH SOLE 1337988
XL CAPITAL LTD COM G98255105 616 11388 SH SOLE 11388
ZOLL MEDICAL CORP COM 989922109 6565 133975 SH SOLE 133975
</TABLE>
