U.S. stocks gained on Wednesday as investors monitored a series of closely watched earnings reports and further digested a hot print on inflation in the U.S.

The S&P 500 jumped by more than 1%, ending a three-day losing streak. The Nasdaq Composite outperformed and rose 2% as technology shares jumped and Treasury yields pulled back across the curve.

Investors received a number of quarterly reports from some major U.S. companies and stock index components early Wednesday morning. These included JPMorgan Chase (JPM) — the largest U.S. bank by assets — along with Delta Air Lines (DAL) and Bed, Bath & Beyond (BBBY).

JPMorgan Chase CEO Jamie Dimon offered a cautiously upbeat view of the U.S. economy in the bank's earnings release on Wednesday. Dimon noted that he remained "optimistic on the economy, at least for the short term," but still sees "significant geopolitical and economic challenges ahead due to high inflation, supply chain issues and the war in Ukraine." And the bank also built up its credit reserves by a net $902 million, "largely due to higher probabilities of downside risk," Dimon said.

Meanwhile, Delta Air Lines, one of the major airlines at the center of the reopening trade, suggested business would pick up further in the current quarter even as first-quarter results showed another loss, as the airline grappled with the omicron variant wave earlier this year. The carrier returned to profitability in the month of March, Delta noted, and noted that revenue is expected to reach between 92% and 97% of pre-pandemic levels during the current quarter ended in June.

This early set of earnings reports helped set the tone for what is expected to ultimately be a much milder quarter for earnings growth than in recent periods. As companies grapple with rising labor, raw material and transportation costs and lap last year's initial reopening-fueled jump in activity, many on Wall Street are looking for narrower margins than in recent quarters, even as sales hold up strongly amid elevated consumer demand and rising prices. Across the S&P 500, companies in aggregate are expected to report year-over-year earnings growth of just 4.5%, which if realized, would mark the slowest rate since the fourth quarter of 2020, according to FactSet.