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
3M Co COM 88579Y101 333 1,415 SH   SOLE   0 0 0
Aclaris Therapeutics COM 00461U105 1,139 46,200 SH   SOLE   0 0 0
Activision Blizzard COM 00507V109 10,151 160,311 SH   SOLE   0 0 0
Adobe Systems COM 00724F101 10,030 57,236 SH   SOLE   0 0 0
Affiliated Mgrs Group COM 008252108 2,601 12,670 SH   SOLE   0 0 0
Alibaba Group Holdings ADR COM 01609W102 7,446 43,182 SH   SOLE   0 0 0
Alphabet Inc. Cl-A COM 02079K305 6,405 6,080 SH   SOLE   0 0 0
Alphabet Inc. Cl-C COM 02079K107 6,118 5,847 SH   SOLE   0 0 0
Amazon.Com, Inc COM 023135106 16,130 13,793 SH   SOLE   0 0 0
American Tower Corp Cl A COM 03027X100 2,962 20,762 SH   SOLE   0 0 0
Amerisourcebergen Corp. COM 002919959 321 3,500 SH   SOLE   0 0 0
Apple Computer COM 037833100 620 3,666 SH   SOLE   0 0 0
Bankamerica Corp. New COM 060505104 3,796 128,585 SH   SOLE   0 0 0
Berkshire Hathaway Inc-Cl B COM 084670702 353 1,780 SH   SOLE   0 0 0
Blackstone Group COM 09253U108 1,531 47,800 SH   SOLE   0 0 0
Camping World Hldg. COM 13462K109 2,337 52,240 SH   SOLE   0 0 0
Cedar Fair LP Dep Unit COM 150185106 1,379 21,215 SH   SOLE   0 0 0
Celanese Corp. COM 150870103 5,141 48,010 SH   SOLE   0 0 0
Celgene Corp. COM 151020104 7,192 68,911 SH   SOLE   0 0 0
ChevronTexaco Corp COM 166764100 1,496 11,947 SH   SOLE   0 0 0
Citigroup COM 172967101 3,450 46,360 SH   SOLE   0 0 0
Citizens Finc'l Grp. COM 174610105 1,988 47,363 SH   SOLE   0 0 0
Comfort Systems USA COM 199908104 428 9,800 SH   SOLE   0 0 0
CoStar Group COM 22160n109 3,335 11,230 SH   SOLE   0 0 0
DexCom, Inc. COM 252131107 1,659 28,916 SH   SOLE   0 0 0
Eagle Materials Inc. COM 26969p108 6,080 53,660 SH   SOLE   0 0 0
Eagle Pharmaceuticals COM 269796108 309 5,790 SH   SOLE   0 0 0
Facebook Inc. Class A COM 30303M102 16,277 92,242 SH   SOLE   0 0 0
Fedex Corp. COM 31428X106 2,188 8,767 SH   SOLE   0 0 0
Fidelity National Information Services I COM 31620M106 7,624 81,032 SH   SOLE   0 0 0
General Electric COM 369604103 1,861 106,660 SH   SOLE   0 0 0
GTT Communications COM 362393100 3,667 78,115 SH   SOLE   0 0 0
Home Depot COM 437076102 5,801 30,607 SH   SOLE   0 0 0
Illumina Inc. COM 452327109 10,755 49,223 SH   SOLE   0 0 0
Insulet Corp. COM 45784P101 3,023 43,810 SH   SOLE   0 0 0
JP Morgan Chase & Co. COM 46625H100 2,341 21,888 SH   SOLE   0 0 0
LCI Ind. COM 50189K103 4,215 32,425 SH   SOLE   0 0 0
Meritor Inc. COM 59001K100 1,026 43,725 SH   SOLE   0 0 0
Microsemi Corp. COM 595137100 4,126 79,877 SH   SOLE   0 0 0
Microsoft COM 594918104 8,073 94,376 SH   SOLE   0 0 0
Morgan Stanley COM 617446448 1,273 24,257 SH   SOLE   0 0 0
Netflix Inc. COM 64110l106 7,436 38,738 SH   SOLE   0 0 0
Nike Inc. Class B COM 654106103 1,349 21,562 SH   SOLE   0 0 0
Nvidia Corp. COM 67066G104 12,733 65,805 SH   SOLE   0 0 0
NXP Semiconductors N.V. COM n6596x109 3,359 28,690 SH   SOLE   0 0 0
Okta Inc. COM 679295105 2,051 80,080 SH   SOLE   0 0 0
ON Semiconductor COM 682189105 2,066 98,680 SH   SOLE   0 0 0
PayPal Holdings COM 70450Y103 5,849 79,446 SH   SOLE   0 0 0
Pool Corp. COM 73278L105 3,001 23,145 SH   SOLE   0 0 0
Portola Pharmaceuticals COM 737010108 6,253 128,460 SH   SOLE   0 0 0
Rockwell Collins COM 774341101 4,670 34,435 SH   SOLE   0 0 0
Royal Dutch Shell PLC-ADR A COM 780259206 274 4,114 SH   SOLE   0 0 0
S&P Global COM 78409V104 759 4,478 SH   SOLE   0 0 0
Salesforce.com COM 79466L302 6,763 66,152 SH   SOLE   0 0 0
Starbucks Corp COM 855244109 4,201 73,150 SH   SOLE   0 0 0
Sun Life Financial Services of CDA COM 866796105 350 8,482 SH   SOLE   0 0 0
Synopsys Inc. COM 871607107 3,480 40,825 SH   SOLE   0 0 0
Talend SA COM 874224207 958 25,550 SH   SOLE   0 0 0
Teladoc COM 87918A105 2,368 67,935 SH   SOLE   0 0 0
Tesla Motors Inc COM 88160r101 1,446 4,643 SH   SOLE   0 0 0
Thermo Fisher Scientific COM 883556102 8,416 44,324 SH   SOLE   0 0 0
Ulta Salon Cosmetics COM 90384s303 4,130 18,465 SH   SOLE   0 0 0
United Rentals COM 911363109 2,242 13,041 SH   SOLE   0 0 0
United Technologies COM 913017109 974 7,638 SH   SOLE   0 0 0
Visa Inc. COM 92826c839 14,974 131,324 SH   SOLE   0 0 0
Wayfair Inc. COM 94419L101 1,290 16,070 SH   SOLE   0 0 0