* Stimulus optimism, housing data buoy sentiment
* Merck's solid profit lifts pharmaceutical stocks
* Indexes rise more than 1 pct
* For up-to-the-minute market news, click [
] (Updates with Disney dropping after-the-bell, adds volume in last two paragraphs)By Ellis Mnyandu
NEW YORK, Feb 3 (Reuters) - U.S. stocks rose on Tuesday as news of an alternative stimulus plan from Senate Republicans suggested lawmakers were moving closer to a package that would soften the blow of a deepening recession.
A surprise rise in December pending home sales also buoyed sentiment, while a solid profit from drugmaker Merck <MRK.N> offered a rare bit of welcome news in an otherwise gloomy earnings season.
"The fact that we've gotten at least a counter-proposal makes it more likely that something will pass," said Michael James, senior trader at regional investment bank Wedbush Morgan in Los Angeles.
"There was some concern that we might not get a (stimulus) bill passed a couple of days ago. That certainly added to the market's big move at the end of the day."
Merck shares climbed more than 6 percent, making health-care stocks one of the biggest boosts to both the Dow and the S&P 500. Schering-Plough <SGP.N> also posted quarterly results ahead of Wall Street targets, sending its stock up more than 8 percent.
The Dow Jones industrial average <
> jumped 141.53 points, or 1.78 percent, to 8,078.36. The Standard & Poor's 500 Index <.SPX> added 13.07 points, or 1.58 percent, to 838.51. The Nasdaq Composite Index < > shot up 21.87 points, or 1.46 percent, to 1,516.30.A group of Republican U.S. senators offered a $445 billion alternative plan to boosting the ailing economy, about half of which would be in the form of tax cuts. The plan is an alternative to the $885 billion package crafted by Democrats who control the Senate. For details, see [
]DISNEY DISAPPOINTS
But even with the optimism, there was some unsettling news after the bell as Walt Disney Co <DIS.N> ,considered a bellwether for consumer spending, posted a 32 percent slide in quarterly profit, worse than expected. Its stock, a Dow component, slid than 9 percent to $18.70 after-hours, from a close of $20.62 on the New York Stock Exchange.
Disney's results could potentially unnerve investors on Wednesday.
In the regular session, technology notched a strong advance for a second straight day as shares of such bellwethers as Microsoft <MSFT.O> rallied on hopes that government stimulus plans will boost consumer and business spending, offsetting a disappointing outlook from flash memory card maker SanDisk Corp <SNDK.O>.
Microsoft, up 3.8 percent at $18.50, was the top boost on Nasdaq, and the software maker capped its strongest two-day run-up in nearly two months. Tech services company International Business Machines Corp <IBM.N> led the Dow, finishing up 2.8 percent at $93.48.
Merck shares finished 6.4 percent higher at $30.24, while Schering-Plough climbed 8.2 percent to $18.91. Drug companies are a defensive play as their business is considered better able to withstand a downbeat economy. The pharmaceutical index <.DRG> rose 3 percent.
Investors saw a glimmer of hope in the battered housing market after pending sales of existing homes rose 6.3 percent in December, sparking an 8.5 percent rise in the Dow Jones home construction index <.DJUSHB>.
Shares of luxury home builder Toll Brothers <TOL.N> gained 6.4 percent to $18.06. Shares of D.R. Horton <DHI.N> surged 21.4 percent to $7.42 after the home builder posted a smaller-than-expected quarterly loss.
BANK WOES
Bank shares slid, however, due to uncertainty about the Obama administration's plans to shore up the beleaguered financial sector. JPMorgan <JPM.N> ,down 4.6 percent at $24.05, was the top drag on the Dow, followed by American Express <AXP.N> ,off 5.2 percent to $16.09.
Bank of America <BAC.N> sagged for a fourth straight day, ending 11.8 percent lower at $5.30 on the New York Stock Exchange. The Obama administration is due to make an announcement about its bank plan next week.
Shares of SanDisk, whose chips are used in cell phones and digital cameras, plunged 23.2 percent to $8.66, a day after it gave a disappointing outlook and said it may undertake an equity offering that could dilute shares as much as 20 percent.
Volume was moderate on the New York Stock Exchange, where about 1.35 billion shares changed hands, below last year's estimated daily average volume of 1.49 billion shares, while on the Nasdaq, about 2.12 billion shares traded, below last year's daily average of 2.28 billion.
Advancers outnumbered decliners on the NYSE by a ratio of about 8 to 5, while on the Nasdaq, about four stocks rose for every 3 that fell. (Editing by Leslie Adler)