The euro also weakened after Draghi said the ECB will ease policy again if inflation fails to accelerate, signalling one of the biggest policy reversals of his eight-year tenure.

Draghi's comments spurred talk that the Federal Reserve would also soon start easing monetary policy by cutting interest rates, with the U.S. central bank set to give its policy statement on Wednesday.

"In the U.S., it got translated into, 'Oh great, this means the Fed will have to cut,'" said Carol Schleif, deputy chief investment officer with Abbot Downing in Minneapolis. "But we don’t necessarily think they have to or should this soon."

The Fed is expected to leave borrowing costs unchanged at its meeting this week but possibly lay the groundwork for a rate cut later this year.

Trump has sought to influence the Fed to cut rates. In response to Draghi's comments, Trump on Tuesday accused the ECB president of trying to weaken the euro to gain an unfair competitive advantage.

Trump also said he would have an extended meeting with Chinese President Xi Jinping at the G20 summit later this month, as the world's two largest economies rekindle trade talks. China, which previously declined to say whether the two leaders would meet, confirmed the get-together.

"There had been some question in markets in the last few days about whether or not that meeting was actually going to happen," Schleif said. "It still remains to be seen what comes out of that meeting."

MSCI's gauge of stocks across the globe gained 1.04%.

On Wall Street, the Dow Jones Industrial Average rose 353.01 points, or 1.35%, to 26,465.54, the S&P 500 gained 28.08 points, or 0.97%, to 2,917.75 and the Nasdaq Composite added 108.86 points, or 1.39%, to 7,953.88.

The pan-European STOXX 600 index rose 1.67%, its best day since January.

Benchmark bond yields fell globally following Draghi's hints of more stimulus, with German bond yields hitting record lows deep in negative territory, around -0.32%, and French 10-year yields turning negative for the first time.

Benchmark U.S. 10-year notes last rose 8/32 in price to yield 2.0578%, from 2.086% late on Monday.

"Draghi was extremely dovish and this had a big impact on Treasuries as we anticipate the Federal Reserve," said Ellis Phifer, market strategist at Raymond James in Memphis, Tennessee.

The dollar index, which measures the greenback against a basket of currencies, rose 0.06%, with the euro down 0.18% to $1.1197.

Oil prices rose sharply after Trump confirmed his meeting with Xi.

U.S. crude settled up 3.8% at $53.90 a barrel, while Brent settled at $62.14 a barrel, up 2%.

GRAPHIC: Global assets in 2019 - http://tmsnrt.rs/2jvdmXl

GRAPHIC: World FX rates in 2019 - http://tmsnrt.rs/2egbfVh

GRAPHIC: MSCI All Country World Index Market Cap - http://tmsnrt.rs/2EmTD6j


GRAPHIC: China trade shock interactive -https://tmsnrt.rs/2SRopIf

(Additional reporting by Gertrude Chavez-Dreyfuss in New York; Editing by Nick Zieminski, Jonathan Oatis and Sonya Hepinstall)

By Lewis Krauskopf