(Adds comment, context, updates prices) * Biden to give details of "trillions" in spending Thursday * Many analysts still expect dollar to resume declines * Graphic: World FX rates tmsnrt.rs/2RBWI5E By Julien Ponthus LONDON, Jan 14 (Reuters) - The dollar held above three-year lows versus major peers on Thursday as expectations for President-elect Joe Biden"s fiscal stimulus pushed yields of U.S. government bonds higher. The 10-year Treasury yield rose after CNN reported the stimulus will be around $2 trillion, adding support for the dollar and weakening gold. At midday in Europe, the dollar index was little changed, up 0.06% at 90.420, as investors waited for Biden to give details on Thursday of his pandemic relief plan. The dollar has risen in four of the last five trading sessions as the prospect of more stimulus has weighed on U.S. government bonds, sending the benchmark Treasury yield above 1% for the first time since March. Expectations are high, but many analysts believe the spending push has already been priced in. "We feel the fiscal cat is out of the bag already: it would take a lot to surprise markets after the re-pricing seen last week," ING analysts said. "The scope for the reflation trade to restart on the back of this announcement alone is limited." Benjamin Melman, chief investment officer at Edmond de Rothschild AM, was also cautious. He said Biden might have to scale back his stimulus ambitions to get the plan through Congress. "First, I am not sure a big fiscal stimulus is going to happen. Secondly, the market is quite aware of it", he said. The currency"s recovery is also threatened by a build-up of bearish dollar positions. FX speculators have been net short the dollar since mid-March, as investors" appetite for riskier assets hurt demand for the greenback. Because U.S. stimulus supports risk sentiment, that could further weigh on the dollar, which is considered a safe haven. The global recovery-sensitive Australian and New Zealand dollars firmed to $0.7765 and $0.7204. The euro eased 0.06% to $1.2144 despite positive news from the bloc"s economic powerhouse. Germany"s economy shrank by 5% in 2020, less than expected and a smaller contraction than during the global financial crisis, as unprecedented government rescue and stimulus measures lessened the shock of the COVID-19 pandemic. "One could say we got off lightly," LBBW analyst Uwe Burkert said. Bitcoin held on to 10% gains made on Wednesday after a slide of nearly $12,000 from last week"s record high of $42,000. It rose about 2% to $38,092 on Thursday, up from as low as $30,261.13 on Jan. 11. Interest in the cryptocurrency surged as institutional investors began buying heavily, viewing it as both an inflation hedge and as exposed to gains if it becomes more widely adopted. ======================================================== Currency bid prices at 12:17PM (1217 GMT) Description RIC Last U.S. Close Pct Change YTD Pct High Bid Low Bid Previous Change Session Euro/Dollar $1.2151 $1.2159 -0.06% -0.55% +1.2172 +1.2135 Dollar/Yen 103.9800 103.8850 +0.10% +0.68% +104.1950 +103.8150 Euro/Yen 126.33 126.28 +0.04% -0.46% +126.5200 +126.2300 Dollar/Swiss 0.8894 0.8875 +0.22% +0.54% +0.8899 +0.8866 Sterling/Dollar 1.3655 1.3637 +0.13% -0.05% +1.3678 +1.3620 Dollar/Canadian 1.2668 1.2701 -0.24% -0.49% +1.2706 +1.2666 Aussie/Dollar 0.7768 0.7734 +0.44% +0.98% +0.7771 +0.7729 NZ 0.7207 0.7175 +0.46% +0.38% +0.7207 +0.7173 Dollar/Dollar All spots Tokyo spots Europe spots Volatilities Tokyo Forex market info from BOJ (Reporting by Kevin Buckland; editing by Ana Nicolaci da Costa, Simon Cameron-Moore, Larry King and Barbara Lewis)