The S&P 500 snapped a three-day losing streak Wednesday as investors digested third-quarter earnings and insights into when the Fed might taper its asset-purchase program.
The broad index closed 0.3% higher at 4,363.80, fluctuating between gains and losses throughout the session. The Nasdaq Composite ticked up 0.7% to 14,571.64, also breaking a negative streak. The Dow Jones Industrial Average was flat at 34,377.81 after shedding more than 260 points at its intraday lows.
Minutes released Wednesday afternoon from the Federal Open Market Committee's September meeting showed the central bank could begin tapering its asset-purchase program as soon as mid-November.
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"Participants generally assessed that, provided that the economic recovery remained broadly on track, a gradual tapering process that concluded around the middle of next year would likely be appropriate," the minutes said.
The September consumer price index released Wednesday morning jumped 0.4% from the month prior and 5.4% year over year, according to the Labor Department. Economists expected to see a month-to-month increase of 0.3% or annualized rate of 5.3%, according to Dow Jones.
"Much of these inflationary pressures are transitory, but that doesn't stop them from having a dampening impact on activity. Today's number, with food price inflation and shelter inflation moving higher, suggests growing pressure on consumers," Seema Shah, chief strategist at Principal Global Investors said.
Excluding energy and food, the core CPI rose 0.2% month over month and 4% over the last 12 months, against respective estimates for 0.3% and 4%.
Third-quarter earnings season kicked off on Wednesday with JPMorgan Chase, which said that quarterly profit topped expectations following a boost from better-than-expected loan losses. Revenue for the largest U.S. bank by assets also came in higher than expected.
JPMorgan shares fell 2.6% following the report despite the strong earnings report. The stock is up more than 26% this year.
Delta Air Lines also reported financial results before the opening bell on Wednesday. The company posted higher-than-expected revenue and its first quarterly profit without counting federal aid since the start of the pandemic.
However, the airline said higher costs of fuel and other expenses will pressure its fourth-quarter bottom line. Shares of Delta shed about 5.8%.
"We're at that point where valuations … stopped going up and, in fact, are coming down, while earnings growth is peaking," Jurrien Timmer, director of global macro at Fidelity Investments, said on CNBC's "Squawk on the Street." "That creates a less upward trajectory for the stock market."
Apple shares dipped 0.4% after a Bloomberg News report that said it is likely to cut iPhone 13 production because of chip shortages.
Despite Apple's retreat, technology stocks enjoyed a lift Wednesday from a lower U.S. 10-year Treasury note yield. Low interest rates can push growth stock prices higher because they lift the value of companies' future earnings. Investors tend to reach toward those high-margin technology shares when interest rates are low.
A relatively strong tech sector helped support the Nasdaq Composite and S&P 500. Big Tech names Microsoft, Google-parent Alphabet and Amazon rose. Nvidia, Zoom and Salesforce also gained.
Investors await earnings reports from Bank of America, Morgan Stanley, Citigroup, Wells Fargo and Walgreens Boots Alliance on Thursday.
"This clearly represents the first quarter of real EPS risk that investors have had to deal with in the COVID recovery, as GDP estimates have collapsed since mid-August on nothing short of historic supply chain issues," said Tavis McCourt, institutional equity strategist at Raymond James.
"However, consensus EPS at the index level has not changed meaningfully, as, remarkably, a greater number of stocks have seen positive earnings revisions since mid-August than negative," McCourt added.
— with reporting from CNBC's Patti Domm.