* Dollar falls broadly as Lehman shares sink
* Dollar upward momentum still intact
* Impact of GSE bailout on U.S. budget deficit in focus (Recasts, updates prices)
By Lucia Mutikani
NEW YORK, Sept 9 (Reuters) - The U.S. dollar fell on Tuesday as Lehman Brothers shares plunged on worries over the investment bank's ability to raise capital, shifting the spotlight back on the country's fragile financial sector.
The drop in Lehman <LEH.N> shares to their lowest level in nearly a decade sapped the market's euphoria from the government's weekend bailout of mortgage finance firms Freddie Mac <FRE.N> and Fannie Mae <FNM.N.
That caused investors to dump riskier assets such as stocks and the dollar in favor of the safe-haven Japanese yen and Swiss franc.
"There are some rumors in the market place regarding the well-being of Lehman Brothers," said Gareth Sylvester, currency strategist at HiFX in San Francisco.
"Whenever we see heightened uncertainty with any large institution, risk aversion moves higher and traders just want to get out of riskier asset classes. We are seeing people getting out of risky trades and into some safer currencies."
Analysts said there were fears that Lehman, the country's fourth largest investment bank, could follow the same route as Bear Stearns, whose takeover was engineered by the Treasury and the Federal Reserve in March. Lehman declined to comment on its plunging share price.
The dollar dropped to a session low against the yen of 107.07 yen <JPY=>. It was last trading at 107.19, down 1.1 percent on the day. The dollar fell 0.7 percent to 1.1236 Swiss franc <CHF=>.
The euro reversed earlier losses against the dollar, also supported by a report showing that U.S. pending home sales fell more than expected in July. It was last trading 0.4 percent higher at $1.4187 <EUR=>, backing away from an 11-month low touched overnight.
BAILOUT EUPHORIA EBBING
Analysts said the markets were also starting to focus on the impact of the Fannie Mae and Freddie Mac bailout on the national budget deficit.
"I am not surprised to see dollar/yen lower on slightly more risk averse markets," said Dustin Reid, foreign exchange strategist at ABN Amro Bank in Chicago.
"The market is probably taking back a little bit of the euphoria that we initially had and was dollar positive, given the taxpayer implication and the impact of the debts."
A drop in the price of oil to a five-month low did little to boost the mood on the markets, with shares on Wall Street falling. U.S. crude <CLc1> traded down $2.44 at $103.88 per barrel after falling as low as $103.46 a barrel earlier.
The ICE Futures U.S. dollar was down 0.5 percent at 79.158 <.DXY>. The index, which measures the dollar's value against a basket of currencies, touched a year high the previous session.
Some profit-taking after Monday's hefty gains was also behind the dollar's decline, analysts said.
"Given the dollar gains we have seen, it's just time for some profit-taking. We have seen some cutting back on long dollar positions," said Ronald Simpson, head of global currency analysis at Action Economics in Tampa, Florida.
"The jury is still out a little bit with regard to the bailout of Freddie and Fannie. For the most part, the markets are taking it as a positive, but the dollar cannot rise in a straight line. The uptrend is still intact."
The Treasury announced a conservatorship plan for Freddie Mac <FRE.N> and Fannie Mae <FNM.N> on Sunday, sparking a dollar rally on perceptions that the measures would restore confidence in U.S. assets and help the housing market's recovery.
Sterling shrugged off a report showing that British manufacturing output fell for a fifth straight month in July. The pound was last up 0.5 percent at $1.7662 <GBP=>. (Editing by Leslie Adler)