(Bloomberg) -- Asian stocks fell Tuesday after a choppy U.S. session as investors mulled the possibility that a fiscal-relief package might be delayed. Treasuries held an overnight climb.Stocks saw modest declines across the region with shares in South Korea underperforming. Australian markets are shut for a holiday. S&P 500 futures slipped after the gauge closed higher, though gains were limited after Senate Majority Leader Chuck Schumer said an aid package was unlikely before mid-March and a U.S. health official expressed concern about vaccination delays.Nasdaq 100 contracts also pointed lower as investors awaited earnings from some of the biggest companies. Elsewhere, crude oil fluctuated under $53 a barrel and gold was little changed. European stocks retreated earlier. The dollar held an overnight advance.With global stocks trading around record highs investors are looking for fresh catalysts to push them higher or at least justify current valuations. That could come from a slate of earnings reports due this week. Meanwhile, the possibility that a U.S. fiscal-relief package might be delayed is undercutting a key reason why Treasury yields climbed earlier this year.President Joe Biden said he’s open to negotiate on his $1.9 trillion Covid-19 relief proposal, and is hopeful to bring Republicans behind it, though didn’t rule out pursuing a Democrat-only route. Schumer said earlier Monday he aims to secure passage of the next round of relief by mid-March, just when jobless benefits from the last package will be running out.On the pandemic front, vaccine coverage won’t reach a point that would stop transmission of the virus in the foreseeable future, the World Health Organization said Monday. U.S. infectious-disease chief Anthony Fauci said he’s worried about delays to second doses.These are some key events coming up in the week ahead:Microsoft Corp., Apple Inc., Tesla Inc., Facebook Inc., UBS Group AG and Samsung Electronics Co. are among companies reporting results.Data on U.S. home prices and consumer confidence come Tuesday.The Federal Open Market Committee monetary policy decision and briefing by Chair Jerome Powell are scheduled for Wednesday.Fourth-quarter GDP, initial jobless claims and new home sales are among U.S. data releases Thursday.U.S. personal income, spending and pending home sales come Friday.These are the main moves in markets:StocksS&P 500 futures fell 0.4% as of 11 a.m. in Tokyo. The S&P 500 Index rose 0.4%.Topix Index fell 0.4%.Kospi Index fell 1.3%.Hang Seng Index fell 0.8%.Shanghai Composite Index fell 0.6%.CurrenciesThe Bloomberg Dollar Spot Index was little changed after rising 0.2% Monday.The euro was little changed at $1.2145.The British pound was at $1.3677.The Japanese yen was little changed at 103.70 per dollar.The offshore yuan was at 6.4786 per dollar.BondsThe yield on 10-year Treasuries rose one basis point to 1.04% after declining six basis points Monday.CommoditiesWest Texas Intermediate crude fell 0.1% to $52.71 a barrel.Gold was little changed at $1,859 an ounce.For more articles like this, please visit us at bloomberg.comSubscribe now to stay ahead with the most trusted business news source.©2021 Bloomberg L.P.