Updates with preliminary closing prices at 4:00 p.m ET/ 2000 GMT
By Sinéad Carew and Shubham Batra
Sept 9 (Reuters) - Wall Street's three major indexes closed higher on Monday as investors looked for bargains after the previous week's sell-off while they also waited for inflation reports in coming days and the Federal Reserve's policy decision week.
Investors had fled from equities last week when Friday's weaker-than-expected August jobs data followed weak manufacturing data on Tuesday, driving the Nasdaq Composite's .IXIC biggest weekly loss since January 2022, and the S&P 500's .SPX biggest weekly decline since March 2023.
Along with jitters about the U.S. economy's health investors have been contending with uncertainty about the Fed's interest rate decision due Sept. 18. But they arrived at their desks in what looked like more bullish moods on Monday.
"Investors had a little time over the weekend to think about things. Clearly there was an over-reaction to economic data last week. It raised over-blown fears of a potential recession," said Kristina Hooper, chief global market strategist at Invesco. "A pause gives you the opportunity to be more rational."
According to preliminary data, the S&P 500 .SPX gained 63.01 points, or 1.16%, to end at 5,471.16 points, while the Nasdaq Composite .IXIC gained 196.83 points, or 1.18%, to 16,884.60. The Dow Jones Industrial Average .DJI rose 481.09 points, or 1.19%, to 40,826.50.
This week's key events include the consumer price index (CPI) report, due Wednesday morning after Tuesday 's first debate between U.S. presidential candidates Democrat Kamala Harris and Republican Donald Trump ahead of the Nov. 5 election.
But in the meantime Phil Blancato, chief market strategist at Osaic Wealth, New York said investors are taking another look at "high quality stocks that are cheaper."
In particular Blancato pointed to gains on Monday in shares of market heavyweight and artificial intelligence chipmaker favorite Nvidia NVDA.O, which fell 15.3% last week.
However, since trading is usually more muted before big economic , Blancato was concerned to see a rally before Wednesday's CPI inflation report, which is expected to help inform whether the Fed cuts rates by 25 or 50 basis points.
"The market's expecting a very soft print and locking in a Fed cut. What happens if we don't get that?" said Blancato who expects volatility after whatever decision the Fed makes.
Some investors will be disappointed if the Fed only cuts rates by 25 basis points but if the cut is double that, they will be worried that the Fed has big concerns about the economy.
"It's a lose-lose situation," the strategist said.
Wednesday's report is expected to show a moderation in headline inflation in August to 2.6% on a yearly basis, while on a monthly basis it is expected to remain unchanged at 0.2%. The CPI report will be followed by producer prices data on Thursday.
During Monday's session, Apple Inc AAPL.O shares fell after it unveiled its artificial intelligence-boosted iPhone 16 .
Apple's long-awaited phone launch came hours after Chinese rival Huawei HWT.UL began racking up orders for its tri-fold Mate XT phone.
Boeing BA.N shares advanced after the planemaker and its biggest union reached a tentative deal covering more than 32,000 workers, averting a possible strike.
Shares in Palantir PLTR.N, Dell Technologies DELL.N and Erie ERIE.O rose on the issued late Friday they will all join the S&P 500 index on Sept. 23.
In the benchmark index, these stocks will replace American Airlines Group AAL.O, Etsy ETSY.O and Bio-Rad Laboratories BIO.N.
(Reporting by Sinéad Carew, Shubham Batra and Shashwat Chauhan in Bengaluru; Editing by Sherry Jacob-Phillips, Maju Samuel and Aurora Ellis)
((sinead.carew@thomsonreuters.com, Shubham.Batra@thomsonreuters.com, Shashwat.Chauhan@thomsonreuters.com))