Stocks jump...Home sales fall...Wireless phone deal....

NEW YORK (AP) — Stock prices have been on the rise since the opening bell, helped by word of corporate dealmaking. With the triple-digit point gain for the Dow, the index is back above the 12,000 level.

WASHINGTON (AP) — A decline was seen in sales of previously-owned homes in February. The National Association of Realtors says existing home sales fell 9.6 percent. The median sales price was down 5 percent.

NEW YORK (AP) — AT&T says that if its deal to buy T-Mobile USA goes through, T-Mobile subscribers with "3G" phones will need to replace those to keep their wireless broadband service working. AT&T has announced agreement to buy T-Mobile USA for $39 billion.

SAN FRANCISCO (AP) — Charles Schwab is buying online brokerage services provider OptionsXpress for $1 billion. OptionsXpress Holdings, based in Chicago, provides brokerage services for equity options and futures trading.

NEW YORK (AP) — Citigroup plans to reinstate a quarterly dividend of a penny per share in the second quarter after launching a 1-for-10 reverse stock split. The announcement comes three days after the Federal Reserve cleared the way for major lenders to increase their dividends.