Market Close: Big Winners & Losers for April 2, 2013 (BGCP, BOSC, OPTR, TCCO, CHCI, IGOI, SPEX, CLNT, NDAQ, NAT)

April 2, 2013 by Paul Ausick

stock symbol tickerHere are today’s five biggest gaining stocks at closing:

BGC Partners Inc. (NASDAQ: BGCP) is up 48.3% at $5.71.

B.O.S. Better Online Solutions Ltd. (NASDAQ: BOSC) is up 20.3% at $3.85.

Optimer Pharmaceuticals Inc. (NASDAQ: OPTR) is up 19.6% at $13.96.

Technical Communications Corp. (NASDAQ: TCCO) is up 19.1% at $5.30.

Comstock Holding Companies Inc. (NASDAQ: CHCI) is up 17.4% at $2.36.

And here are today’s five biggest losing stocks at closing:

iGo Inc. (NASDAQ: IGOI) is down 35.8% at $2.49.

Spherix Inc. (NASDAQ: SPEX) is down 13.2% at $7.29.

Cleantech Solutions International Inc. (NASDAQ: CLNT) is down 13.2% at $3.10.

The Nasdaq OMX Group Inc. (NASDAQ: NDAQ) is down 13% at $27.86.

Nordic American Tankers Ltd. (NYSE: NAT) is down 11.1% at $9.80.

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