Tuesday's Winners & Losers: IndyMac

One of the biggest losers of the day was IndyMac (IMB Quote), shares of which crumbled after an analyst suggested that the mortgage lender would need to raise a significant amount of capital. The analyst also cut his target price from $3 to $1 a share. Shares of the beleagured lender declined 71 cents, or 23.2%, to $2.35.

Shares of Hewlett-Packard(HPQ Quote) fell $2.56, or 5.5%, to $44.27 after the company announced that it will merge with Electronic Data Systems(EDS Quote) in a $13.9 billion deal. EDS was valued at $25 a share by H-P.

The merger would make the combined entity the No. 2 player in the consulting and technology services market after IBM(IBM Quote). EDS gained 26 cents, or 1.1%, to $24.34.

Wireless broadband service provider Clearwire(CLWR Quote) added 85 cents, or 6.7%, to $13.60 though the company posted a wider-than-expected first-quarter loss.

Still, Clearwire investors remained optimistic because of the company's plans with Sprint Nextel(S Quote) for a $14.5 billion WiMax merger deal.

One big mover on Tuesday came from Iomai (IOMI Quote). A buyout sent shares of the biotech soaring 117% to $6.33. Intercell AG announced late Monday a deal to acquire the company in a stock and cash transaction valuing the biopharmaceutical company at roughly $189 million. Intercell will pay $6.60 a share for Iomi -- a 126% premium to the stock's closing price Monday.

U.S. Shipping (USS Quote), a provider of marine transportation services for oil and chemical companies based in Edison, N.J., fell 26% to $8.67. The company announced a first-quarter loss of $5.8 million, or 31 cents a share, vs. a profit of $5.7 million, or 31 cents a share, a year ago.