GLOBAL MARKETS-Stocks slammed by ECB; euro jumps most since 2009
* Euro jumps in short covering as ECB measures disappoint
* Wall St falls most since Sept, European stocks most in 3 mos
* U.S. dollar has biggest decline in over six years
* Oil jumps on OPEC meeting speculation and dollar weakness (Updates U.S. market close, adds commentary)
By Sinead Carew
NEW YORK, Dec 3 (Reuters) - U.S. and European stocks closed down sharply on Thursday and the euro enjoyed its biggest one-day percentage rise in well over six years as investors reacted to the European Central Bank's latest policy easing measures.
U.S. bond yields saw their biggest daily rise in more than two years after the ECB cut its deposit rate by the minimum 0.1 percentage point most traders had expected, to -0.3 percent. It extended its asset purchase program but did not increase the amount of government bonds it buys each month.
Oil futures were boosted by the sharp decline in the dollar and speculation ahead of Friday's OPEC meeting.
The euro surged 3 percent against the dollar. Last week, speculators had amassed the largest short position in the euro since May in anticipation of more ECB stimulus. Continuación...