Morning Market Movers

Nalco Holding Company (NYSE: NLC) climbed 28.75% to $37.17 at 9:50 am. Ecolab Inc (NYSE: ECL) announced its plans to buy Nalco Holding for around $5.4 billion.

TESSCO Technologies Inc (NASDAQ: TESS) shares gained 27.59% to $15.40. TESS reported its Q1 net income at $4.6 million, up from $2.1 million, in the year-ago quarter.

Socket Mobile Inc (NASDAQ: SCKT) shares surged 25.88% to $2.95. SCKT reported the availability of the SocketScan 10 Software Development Kit (SDK) for Apple iOS.

Hadera Paper Ltd (AMEX: AIP) jumped 19.01% to $76.12. AIP shares have dipped 7.92% over the past 52 weeks, while the S&P 500 index has gained 22.45% in the same period.