The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
A10 Networks Inc (ATEN) COM 002121101 266 32,048 SH   SOLE   32,048 0 0
ARDELYX (ARDX) COM 039697107 361 25,400 SH   SOLE   25,400 0 0
Abraxas Petroleum (AXAS) COM 003830106 904 351,700 SH   SOLE   0 0 351,700
Actua Corp (ACTA) COM 005094107 1,282 91,547 SH   SOLE   23,300 0 68,247
Acuity Brands (AYI) COM 00508Y102 528 2,288 SH   SOLE   2,288 0 0
Adamas Pharmaceuticals (ADMS) COM 00548A106 323 19,100 SH   SOLE   19,100 0 0
Aerie Pharmaceuticals (AERI) COM 00771V108 621 16,400 SH   SOLE   16,400 0 0
Affiliated Managers Group (AMG COM 008252108 234 1,612 SH   SOLE   1,612 0 0
Agilent Technologies (A) COM 00846U101 442 9,700 SH   SOLE   9,700 0 0
Akamai Technologies (AKAM) COM 00971T101 220 3,300 SH   SOLE   3,300 0 0
Alarm.Com Holdings, Inc. (ALRM COM 011642105 1,748 62,800 SH   SOLE   16,000 0 46,800
Alaska Airgroup (ALK) COM 011659109 434 4,889 SH   SOLE   4,889 0 0
Alexion Pharm.Inc (ALXN) COM 015351109 245 2,000 SH   SOLE   2,000 0 0
Allegion PLC (ALLE) COM G0176J109 383 5,978 SH   SOLE   5,978 0 0
Allied Motion Technologies Inc COM 019330109 1,108 51,788 SH   SOLE   13,000 0 38,788
Amber Road Inc (AMBR) COM 02318Y108 1,873 206,255 SH   SOLE   52,500 0 153,755
American Renal Associates Hold COM 029227105 1,270 59,684 SH   SOLE   15,584 0 44,100
Amerisource Bergen Corp (ABC) COM 03073E105 356 4,550 SH   SOLE   4,550 0 0
Amphenol Corp (APH) COM 032095101 450 6,700 SH   SOLE   6,700 0 0
Aon Ord (AON) COM G0408V102 524 4,700 SH   SOLE   4,700 0 0
Applied Materials (AMAT) COM 038222105 587 18,200 SH   SOLE   18,200 0 0
Applied Optoelectronics (AAOI) COM 03823U102 1,214 51,812 SH   SOLE   13,200 0 38,612
Aratana Therapeutics, Inc. (PE COM 03874P101 1,007 140,300 SH   SOLE   32,000 0 108,300
Argos Therapeutics (ARGS) COM 040221103 406 82,850 SH   SOLE   18,400 0 64,450
Asbury Automotive Grp (ABG) COM 043436104 347 5,625 SH   SOLE   5,625 0 0
Aspen Aerogels Inc (ASPN) COM 04523Y105 1,135 274,770 SH   SOLE   59,300 0 215,470
Bel Fuse Inc. (BELFB) COM 077347300 368 11,900 SH   SOLE   11,900 0 0
Belden Inc (BDC) COM 077454106 423 5,664 SH   SOLE   5,664 0 0
Bill Barrett (BBG) COM 06846N104 175 25,000 SH   SOLE   25,000 0 0
Bio-Techne Corp (TECH) COM 09073M104 1,124 10,935 SH   SOLE   10,935 0 0
BioMarin Pharmaceutical (BMRN) COM 09061G101 311 3,750 SH   SOLE   3,750 0 0
Boingo Wireless (WIFI) COM 09739C102 2,013 165,100 SH   SOLE   39,800 0 125,300
Broadcom LTD (AVGO) COM Y09827109 1,130 6,391 SH   SOLE   6,391 0 0
Build-A-Bear Workshop (BBW) COM 120076104 395 28,700 SH   SOLE   28,700 0 0
Builders Firstsource (BLDR) COM 12008R107 1,263 115,100 SH   SOLE   29,300 0 85,800
Burlington Stores (BURL) COM 122017106 413 4,878 SH   SOLE   4,878 0 0
C.R.Bard (BCR) COM 067383109 472 2,100 SH   SOLE   2,100 0 0
CDW Corp. (CDW) COM 12514G108 427 8,204 SH   SOLE   8,204 0 0
CUI Global (CUI) COM 126576206 1,029 148,500 SH   SOLE   31,500 0 117,000
Cable One (CABO) COM 12685J105 373 600 SH   SOLE   600 0 0
Cadence Design Systems (CDNS) COM 127387108 360 14,279 SH   SOLE   14,279 0 0
Cara Therapeutics (CARA) COM 140755109 1,153 124,110 SH   SOLE   34,700 0 89,410
Carbonite, Inc. (CARB) COM 141337105 899 54,814 SH   SOLE   19,214 0 35,600
Carlisle Companies (CSL) COM 142339100 596 5,400 SH   SOLE   5,400 0 0
Carmax Inc (KMX) COM 143130102 380 5,900 SH   SOLE   5,900 0 0
Carriage Services Inc (CSV) COM 143905107 2,069 72,250 SH   SOLE   18,400 0 53,850
Cerner Corp (CERN) COM 156782104 261 5,500 SH   SOLE   5,500 0 0
Cimarex Energy Co. (XEC) COM 171798101 313 2,300 SH   SOLE   2,300 0 0
CitiTrends (CTRN) COM 17306X102 836 44,400 SH   SOLE   11,300 0 33,100
City Office Reit (CIO) COM 178587101 1,420 107,812 SH   SOLE   20,900 0 86,912
Coach Inc (COH) COM 189754104 235 6,700 SH   SOLE   6,700 0 0
CommScope Holding Company, Inc COM 20337X109 320 8,600 SH   SOLE   8,600 0 0
Corium International, Inc. (CO COM 21887L107 855 210,520 SH   SOLE   18,400 0 192,120
Costar Group (CSGP) COM 22160N109 382 2,025 SH   SOLE   2,025 0 0
Covenant Transportation (CVTI) COM 22284P105 304 15,700 SH   SOLE   15,700 0 0
Cross Country Healthcare (CCRN COM 227483104 1,037 66,403 SH   SOLE   16,900 0 49,503
CyrusOne (CONE) COM 23283R100 291 6,498 SH   SOLE   6,498 0 0
Del Taco Restaurants (TACO) COM 245496104 1,943 137,576 SH   SOLE   35,000 0 102,576
Delphi Automotive (DLPH) COM G27823106 525 7,800 SH   SOLE   7,800 0 0
Dollar Tree (DLTR) COM 256746108 432 5,600 SH   SOLE   5,600 0 0
Domino's Pizza (DPZ) COM 25754A201 550 3,456 SH   SOLE   3,456 0 0
Dover Corporation(DOV) COM 260003108 562 7,500 SH   SOLE   7,500 0 0
Dr Pepper Snapple Group, Inc. COM 26138E109 553 6,100 SH   SOLE   6,100 0 0
Dunkin' Brands (DNKN) COM 265504100 446 8,500 SH   SOLE   8,500 0 0
Eastman Chemical Co. (EMN) COM 277432100 274 3,640 SH   SOLE   3,640 0 0
Edwards Lifesciences (EW) COM 28176E108 468 5,000 SH   SOLE   5,000 0 0
Egalet (EGLT) COM 28226B104 1,137 148,590 SH   SOLE   22,800 0 125,790
Eldorado Resorts, Inc. (ERI) COM 28470R102 1,442 85,100 SH   SOLE   21,700 0 63,400
Enanta Pharmaceuticals (ENTA) COM 29251M106 342 10,200 SH   SOLE   10,200 0 0
Entravision Communications (EV COM 29382R107 1,122 160,252 SH   SOLE   34,600 0 125,652
Equifax (EFX) COM 294429105 449 3,800 SH   SOLE   3,800 0 0
Equinix Inc (EQIX) COM 29444U700 370 1,036 SH   SOLE   1,036 0 0
Euro Net Worldwide (EEFT) COM 298736109 261 3,600 SH   SOLE   3,600 0 0
Evolent Health, Inc. (EVH) COM 30050B101 1,664 112,449 SH   SOLE   27,400 0 85,049
Exar Corp (EXAR) COM 300645108 1,484 137,700 SH   SOLE   35,100 0 102,600
Fidelity National Info. Srvcs. COM 31620M106 325 4,300 SH   SOLE   4,300 0 0
First Republic Bank (FRC) COM 33616C100 505 5,486 SH   SOLE   5,486 0 0
Fiserv, Inc. (FISV) COM 337738108 425 4,000 SH   SOLE   4,000 0 0
Five9 Inc (FIVN) COM 338307101 1,093 77,000 SH   SOLE   20,100 0 56,900
Flexion Therapeutics (FLXN) COM 33938J106 1,611 84,700 SH   SOLE   18,700 0 66,000
Foot Locker , Inc (FL) COM 344849104 475 6,701 SH   SOLE   6,701 0 0
Fortinet Inc (FTNT) COM 34959E109 488 16,200 SH   SOLE   16,200 0 0
Fortune Brands Home & Security COM 34964C106 321 5,997 SH   SOLE   5,997 0 0
GTT Communications (GTT) COM 362393100 2,219 77,173 SH   SOLE   22,792 0 54,381
Globant SA (GLOB) COM L44385109 1,271 38,100 SH   SOLE   9,900 0 28,200
GlycoMimetics, Inc (GLYC) COM 38000Q102 915 150,000 SH   SOLE   0 0 150,000
Good Times Restaurant (GTIM) COM 382140879 163 51,900 SH   SOLE   51,900 0 0
HD Supply Holdings, Inc. (HDS) COM 40416M105 363 8,529 SH   SOLE   8,529 0 0
Habit Restaurants (HABT) COM 40449J103 1,362 78,955 SH   SOLE   20,100 0 58,855
Hackett Group (HCKT) COM 404609109 1,536 86,990 SH   SOLE   24,100 0 62,890
Hannon Armstrong (HASI) COM 41068X100 1,869 98,441 SH   SOLE   24,163 0 74,278
Healthcare Trust of America, I COM 42225P501 368 12,635 SH   SOLE   12,635 0 0
Healthstream Inc (HSTM) COM 42222N103 1,743 69,595 SH   SOLE   13,800 0 55,795
Helmerich & Payne, Inc. (HP) COM 423452101 348 4,500 SH   SOLE   4,500 0 0
Henry Schein (HSIC) COM 806407102 303 2,000 SH   SOLE   2,000 0 0
Hunt (JB) Transport Srvcs Inc COM 445658107 1,301 13,400 SH   SOLE   13,400 0 0
IMPINJ Inc. (PI) COM 453204109 1,134 32,100 SH   SOLE   12,000 0 20,100
Incyte Corp (INCY) COM 45337C102 556 5,550 SH   SOLE   5,550 0 0
Ingersoll-Rand Inc (IR) COM G47791101 405 5,400 SH   SOLE   5,400 0 0
Instructure, Inc. (INST) COM 45781U103 2,029 103,800 SH   SOLE   20,700 0 83,100
Inter Parfums Inc (IPAR) COM 458334109 495 15,100 SH   SOLE   15,100 0 0
Intrawest Resorts Holdings, In COM 46090K109 1,056 59,181 SH   SOLE   16,681 0 42,500
Intuitive Surgical (ISRG) COM 46120E602 381 600 SH   SOLE   600 0 0
Inventure Group, Inc.(SNAK) COM 461212102 1,590 161,422 SH   SOLE   34,600 0 126,822
Invuity (IVTY) COM 46187J205 431 75,001 SH   SOLE   35,200 0 39,801
Jack Henry & Assoc. (JKHY) COM 426281101 270 3,043 SH   SOLE   3,043 0 0
Jakks Pacific Inc (JAKK) COM 47012E106 237 46,000 SH   SOLE   46,000 0 0
K2M Group Holdings (KTWO) COM 48273J107 1,378 68,761 SH   SOLE   16,800 0 51,961
KORNIT DIGITAL LTD. (KRNT) COM M6372Q113 457 36,100 SH   SOLE   9,500 0 26,600
Kellogg Co (K) COM 487836108 634 8,600 SH   SOLE   8,600 0 0
Kirklands(KIRK) COM 497498105 199 12,800 SH   SOLE   12,800 0 0
Kona Grill (KONA) COM 50047H201 1,456 116,051 SH   SOLE   25,300 0 90,751
LGI Homes (LGIH) COM 50187T106 1,157 40,265 SH   SOLE   11,365 0 28,900
Laboratory Corp Of America (LH COM 50540R409 347 2,700 SH   SOLE   2,700 0 0
Lam Research (LRCX) COM 512807108 1,279 12,100 SH   SOLE   12,100 0 0
Lions Gate Ent. Corp. Class A COM 535919401 402 14,936 SH   SOLE   14,936 0 0
Live Nation Entertainment, Inc COM 538034109 385 14,471 SH   SOLE   14,471 0 0
Lululemon Athletica Inc(LULU) COM 550021109 780 12,000 SH   SOLE   12,000 0 0
M/I Schottenstein Homes (MHO) COM 55305B101 272 10,800 SH   SOLE   10,800 0 0
MGM Resorts Intl (MGM) COM 552953101 360 12,500 SH   SOLE   12,500 0 0
Marcus & Millichap (MMI) COM 566324109 996 37,289 SH   SOLE   9,500 0 27,789
Marten Transport (MRTN) COM 573075108 285 12,250 SH   SOLE   12,250 0 0
Materialise NV (MTLS) COM 57667T100 795 103,461 SH   SOLE   24,400 0 79,061
Maxim Integrated Products (MXI COM 57772K101 258 6,700 SH   SOLE   6,700 0 0
Maxlinear Inc (MXL) COM 57776J100 654 29,984 SH   SOLE   29,984 0 0
Micron Tech (MU) COM 595112103 484 22,100 SH   SOLE   22,100 0 0
Mimecast Limited (MIME) COM G14838109 1,777 99,254 SH   SOLE   24,000 0 75,254
Mohawk Inds. (MHK) COM 608190104 359 1,800 SH   SOLE   1,800 0 0
Monarch Casino & Resort (MCRI) COM 609027107 327 12,700 SH   SOLE   12,700 0 0
Moody's Corp (MCO) COM 615369105 302 3,200 SH   SOLE   3,200 0 0
NCI Building Systems (NCS) COM 628852204 363 23,200 SH   SOLE   23,200 0 0
NOW Inc. (DNOW) COM 67011P100 378 18,462 SH   SOLE   18,462 0 0
NVIDIA Corp (NVDA) COM 67066G104 779 7,300 SH   SOLE   7,300 0 0
Nanometrics Inc (NANO) COM 630077105 273 10,900 SH   SOLE   10,900 0 0
Natera, Inc. (NTRA) COM 632307104 632 53,966 SH   SOLE   11,800 0 42,166
National Oil Well Varco, Inc. COM 637071101 371 9,900 SH   SOLE   9,900 0 0
Nautilus Group (NLS) COM 63910B102 1,752 94,700 SH   SOLE   26,100 0 68,600
Neophotonics (NPTN) COM 64051T100 1,211 112,000 SH   SOLE   23,700 0 88,300
NewLink Genetics Corp (NLNK) COM 651511107 1,119 108,900 SH   SOLE   19,700 0 89,200
Newell Brands Inc. (NWL) COM 651229106 496 11,100 SH   SOLE   11,100 0 0
Nordstrom Inc. (JWN) COM 655664100 383 8,000 SH   SOLE   8,000 0 0
Novan Inc. (NOVN) COM 66988N106 228 8,441 SH   SOLE   8,441 0 0
O'Reilly Automotive (ORLY) COM 67103H107 724 2,600 SH   SOLE   2,600 0 0
ON Semiconductor Corp (ON) COM 682189105 623 48,828 SH   SOLE   48,828 0 0
OOMA (OOMA) COM 683416101 1,373 152,533 SH   SOLE   22,319 0 130,214
Obalon Therapeutics Inc (OBLN) COM 67424L100 882 99,700 SH   SOLE   13,300 0 86,400
Oxford Immunotec Global (OXFD) COM G6855A103 341 22,800 SH   SOLE   22,800 0 0
PGT Innovations, Inc. (PGTI) COM 69336V101 1,376 120,202 SH   SOLE   30,600 0 89,602
PTC Inc. (PTC) COM 69370C100 370 8,000 SH   SOLE   8,000 0 0
Palo Alto Networks (PANW) COM 697435105 331 2,650 SH   SOLE   2,650 0 0
Parker Hannifin (PH) COM 701094104 686 4,900 SH   SOLE   4,900 0 0
Parsley Energy, Inc. (PE) COM 701877102 370 10,500 SH   SOLE   10,500 0 0
Penske Automotive(PAG) COM 70959W103 259 5,000 SH   SOLE   5,000 0 0
Perkin Elmer Inc (PKI) COM 714046109 327 6,278 SH   SOLE   6,278 0 0
Pioneer Energy Services Corp.( COM 723664108 1,423 207,800 SH   SOLE   47,100 0 160,700
Q2 Holdings (QTWO) COM 74736L109 1,838 63,710 SH   SOLE   17,400 0 46,310
Quanta Services (PWR) COM 74762E102 667 19,153 SH   SOLE   19,153 0 0
Quantenna Communications Inc ( COM 74766D100 676 37,300 SH   SOLE   13,100 0 24,200
Quidel (QDEL) COM 74838J101 2,615 122,100 SH   SOLE   17,000 0 105,100
Rapid7 (RPD) COM 753422104 940 77,200 SH   SOLE   19,700 0 57,500
Repligen Corporation (RGEN) COM 759916109 616 20,000 SH   SOLE   20,000 0 0
Retrophin (RTRX) COM 761299106 2,152 113,695 SH   SOLE   21,900 0 91,795
Ross Stores (ROST) COM 778296103 407 6,200 SH   SOLE   6,200 0 0
SEI Investment Company (SEIC) COM 784117103 1,212 24,546 SH   SOLE   24,546 0 0
Sabre (SABR) COM 78573M104 285 11,405 SH   SOLE   11,405 0 0
Service Now (NOW) COM 81762P102 344 4,622 SH   SOLE   4,622 0 0
ShorTel (SHOR) COM 825211105 233 32,600 SH   SOLE   32,600 0 0
Snap-On Inc (SNA) COM 833034101 414 2,416 SH   SOLE   2,416 0 0
Spectrum Brands Holdings, Inc. COM 84763R101 335 2,735 SH   SOLE   2,735 0 0
Splunk (SPLK) COM 848637104 466 9,117 SH   SOLE   9,117 0 0
Sterling Construction (STRL) COM 859241101 1,084 128,109 SH   SOLE   29,900 0 98,209
Symantec (SYMC) COM 871503108 339 14,200 SH   SOLE   14,200 0 0
Synergy Pharmaceuticals (SGYP) COM 871639308 208 34,200 SH   SOLE   34,200 0 0
Tabula Rasa HealthCare, Inc. ( COM 873379101 1,275 85,133 SH   SOLE   23,900 0 61,233
Tactile Systems Technology, In COM 87357P100 2,054 125,182 SH   SOLE   25,600 0 99,582
Teladoc (TDOC) COM 87918A105 1,530 92,701 SH   SOLE   23,600 0 69,101
Teligent Inc (TLGT) COM 87960W104 690 104,317 SH   SOLE   37,300 0 67,017
The Hershey Co.(HSY) COM 427866108 393 3,800 SH   SOLE   3,800 0 0
The Madison Square Garden Comp COM 55825T103 360 2,100 SH   SOLE   2,100 0 0
Thermo Fisher Scientific (TMO) COM 883556102 1,129 8,000 SH   SOLE   8,000 0 0
Tile Shop Holdings (TTS) COM 88677Q109 975 49,868 SH   SOLE   12,700 0 37,168
Tracon Pharmaceutical (TCON) COM 89237H100 1,184 241,536 SH   SOLE   0 0 241,536
Trex,Inc (TREX) COM 89531P105 1,159 18,000 SH   SOLE   18,000 0 0
Trupanion, Inc. (TRUP) COM 898202106 304 19,600 SH   SOLE   19,600 0 0
Ultimate Software Group (ULTI) COM 90385D107 313 1,715 SH   SOLE   1,715 0 0
Ultra Clean (UCTT) COM 90385V107 243 25,100 SH   SOLE   25,100 0 0
Under Armour (UA) COM 904311107 253 10,070 SH   SOLE   10,070 0 0
Under Armour Inc. (UAA) COM 904311107 508 17,500 SH   SOLE   17,500 0 0
Vail Resorts (MTN) COM 91879Q109 410 2,544 SH   SOLE   2,544 0 0
Veracyte, Inc. (VCYT) COM 92337F107 709 91,661 SH   SOLE   15,000 0 76,661
Vince Holding Corp (VNCE) COM 92719W108 794 195,989 SH   SOLE   48,900 0 147,089
Vocera Communications(VCRA) COM 92857F107 1,997 107,980 SH   SOLE   28,100 0 79,880
Vulcan Materials (VMC) COM 929160109 652 5,213 SH   SOLE   5,213 0 0
WR Grace & Co (GRA) COM 38388F108 254 3,748 SH   SOLE   3,748 0 0
Wabash National Corp (WNC) COM 929566107 304 19,229 SH   SOLE   19,229 0 0
Whole Foods Mkt (WFM) COM 966837106 332 10,800 SH   SOLE   10,800 0 0
Workiva Inc. (WK) COM 98139A105 703 51,500 SH   SOLE   13,100 0 38,400
Wynn Resorts(WYNN) COM 983134107 303 3,500 SH   SOLE   3,500 0 0
Xactly (XTLY) COM 98386L101 1,355 123,200 SH   SOLE   31,400 0 91,800
Zayo Group (ZAYO) COM 98919V105 313 9,520 SH   SOLE   9,520 0 0
Zoetis Inc. (ZTS) COM 98978V103 594 11,100 SH   SOLE   11,100 0 0
iShares PHLX SOX Semiconductor COM 464287523 663 5,400 SH   SOLE   5,400 0 0
vTv Therapeutics Inc. (VTVT) COM 918385105 797 164,939 SH   SOLE   16,800 0 148,139