Renaissance Technologies: "Black-Box" Hedge Fund Discloses New Positions

Renaissance Technologies disclosed a number of new 5%+ positions today in various 13G filings. Renaissance Technologies, started by Jim Simons, is considered one of the most successful hedge funds. Renaissance is a "black-box" fund, using sophisticated computer models to predict market movements.

New 5%+ positions:

Zoll Medical (Nasdaq: ZOLL) 6.05% stake.

World Wrestling Entertainment (NYSE: WWE) 8.4% stake

Versant Corporation (NASDAQ: VSNT) 5.2% stake

UTStarcom, Inc. (NASDAQ: UTSI) 8.45% stake

Sigmatel (NASDAQ: SGTL) 5.75% stake

RadiSys Corporation (NASDAQ: RSYS) 5.25% stake

QLT Inc. (Nasdaq: QLTI) 6.8% stake

PortalPlayer, Inc. (Nasdaq: PLAY) 9.16% stake

Planar Systems, Inc. (Nasdaq: PLNR) 5.81% stake

Northstar Realty Finance (NYSE: NRF) 5.49% stake

Northgate Minerals Corporation (AMEX: NXG) 5.72% stake

Nortel Inversora S.A. (NYSE: NTL) 5.47% stake

NewMarket Corporation (NYSE: NEU) 5.84% stake

Network Equipment Technologies, Inc. (NYSE: NWK) 5.36% stake

NDS Group plc (Nasdaq: NNDS) 6.4% stake

National Telephone Company of Venezuela (NYSE: VNT) 5.59% stake

Mothers Work, Inc. (Nasdaq: MWRK) 6.58% stake

Microstrategy Incorporated (Nasdaq: MSTR) 6.09% stake

Mercury Computer Systems (Nasdaq: MRCY) 5.42% stake

Mentor Graphics (Nasdaq: MENT) 5.29% stake

McData Corporation 7.59% stake

Interstate Hotels & Resorts, Inc (NYSE: IHR) 6.15% stake

Magnetek, Inc. (NYSE: MAG) 5.79% stake

Infospace, Inc. (Nasdaq: INSP) 6.11% stake

LTX Corporation (Nasdaq: LTXX) 5.69% stake

Kellwood Company (NYSE: KWD) 5.54% stake

Infocus Corporation (Nasdaq: INFS) 5.49% stake

HEICO Corporation (NYSE: HEI) 8.1% stake

ESS Technology, Inc. (Nasdaq: ESST) 5.53% stake

Enzon Pharmaceuticals, Inc. (Nasdaq: ENZN) 7.85% stake

Eagle Broadband, Inc. (AMEX: EAG) 5.46% stake

Dover Downs Gaming & Entertainment (NYSE: DDE) 8.15% stake

Dolby Laboratories (NYSE: DLB) 5% stake

CT Communications (Nasdaq: CTCI) 5.88% stake

Credence Systems Corporation (Nasdaq: CMOS) 6.15% stake

CPI Corp. (NYSE: CPY) 6.25% stake

Commonwealth Telephone Enterprises (Nasdaq: CTCO) 6.58% stake

Cell Genesys, Inc (Nasdaq: CEGE) 6.17% stake

C&D Technologies (NYSE: CHP) 6.81% stake

Brocade Communications (Nasdaq: BRCD) 5.37% stake

The Boston Beer Company (NYSE: SAM) 7.49% stake

Avici Systems (Nasdaq: AVCI) 8% stake

Angeion Corporation (Nasdaq: ANGN) 6.66% stake