ECB president Mario Draghi said the central bank will buy a total of 60 billion euros in assets every month in an effort to stimulate the region’s economy that is reminiscent of the stimulus program put into place several years ago by the U.S. Federal Reserve. (Fortune took an in-depth look at the ECB’s larger than expected quantitative easing earlier today.) London’s FTSE 100 improved by 1% following the news on Thursday while Germany’s DAX rose 1.3%.

Investors readying for a rise in global liquidity initially lifted U.S. Treasuries, whose relatively rich yields grew more attractive with prospects of lower euro zone bond yields, before they turned lower at midsession.

“It’s likely to impact yields everywhere,” said Aaron Kohli, an interest rate strategist at BNP Paribas in New York. “When you put this much stimulus into the markets, it’s going to go other places that you hadn’t intended, and one of those places is going to be U.S. debt.”

U.S. stocks rallied, with the Dow Jones industrial average jumping 260 points, or 1.5%. The Dow finished at 17,814, just a few points below where it started 2015. Meanwhile, the S&P 500 and the Nasdaq composite gained 1.5% and 1.8%, respectively, in a day that saw both indices wipe out all previous losses for 2015 seen earlier in January.

U.S. stocks have had a turbulent start to the year as low oil prices and concern over economic growth overseas have wreaked havoc on investor confidence and sent stocks on several losing streaks.

A handful of strong quarterly earnings reports also gave the U.S. market a boost on Thursday as shares of Southwest Airlines (LUV) and railroad company Union Pacific (UNP) both surged on strong financial numbers. EBay’s (EBAY) shares also gained 7% one day after the e-commerce giant announced massive job cuts and a standstill agreement with activist investor Carl Icahn.

—Reuters contributed to this report.