It was enough to inject a note of caution into trading and Japan's Nikkei eased 0.7%, after jumping almost 5% on Tuesday for its biggest daily gain in three months.
MSCI's broadest index of Asia-Pacific shares outside Japan went flat, having climbed 2.8% the previous day, with most markets across the region little changed.
E-Mini futures for the S&P 500 ESc1 dipped 0.2% and EUROSTOXX 50 futures STXEc1 eased 0.1%.
That followed a robust session on Wall Street overnight. The Dow ended Tuesday up 2.04%, while the S&P 500 gained 1.90% and the Nasdaq 1.75%.
Hopes for recovery had been bolstered by data showing U.S. retail sales jumped by a record 17.7% in May, recovering more than half the losses of the previous two months, though industrial output still lagged.
The Trump administration was also reportedly preparing an up to $1 trillion infrastructure package, something that was initially promised more than three years ago.
"There is little doubt that the global economy bottomed in April and is poised to post record-high growth rates over May and June, strongly lifting 3Q GDP above its 2Q trough," wrote economists at JPMorgan.
"But questions about the extent of lasting damage will have to wait for a number of months before being resolved."
Federal Reserve Chair Jerome Powell cautioned that output and employment would remain well short of their pre-pandemic levels for a long time, so there was a "reasonable probability" that more policy support would be needed.
Sentiment got an added boost from news trial results showed a cheap and widely used steroid reduced death rates among the most severely ill COVID-19 patients.
Yet the virus continues to spread as infections hit record highs in six U.S. states, and Beijing struggled to contain a fresh outbreak in the Chinese capital.
All the talk of recovery took some of the shine off sovereign bonds, with U.S. 30-year yields up at 1.53% having risen by the most in a month on Tuesday.
That in turn helped the U.S. dollar bounce a modestly from recent three-month lows to stand at 97.063 against a basket of currencies.
The euro eased back to $1.1266 from its recent top of $1.1422, while the dollar was sidelined on the Japanese yen at 107.25.
In commodity markets, gold was stuck at $1,725 and well within the $1,670/$1,764 range of the past few weeks.
Oil prices were pulled back by an increase in U.S. crude inventories, having climbed 3% on Tuesday after the International Energy Agency (IEA) raised its oil demand forecast for 2020.
Brent crude futures LCOc1 slipped 59 cents to $40.37 a barrel, while U.S. crude CLc1 lost 72 cents to $38.38.
(Editing by Lincoln Feast.) ((Wayne.Cole@thomsonreuters.com; 612 9321 8162; Reuters Messaging: firstname.lastname@example.org))
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