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Here's your closing bell brief for Tuesday, March 31st. I'm Catherine Sullivan for the Wall Street Journal.

U.S. stocks surged today to reach their largest one-day gains in 10 months. The NASDAQ led the rally with a rise of 3.8%.

The S&P 500 jumped 2.9% while the Dow advanced 2.5%. Investors responded to reports that the current phase of

the war with Iran might end soon, but the trajectory of the conflict and the opening of the

Strait of Hormuz are far from certain. Oil prices fell today as Brent crude dropped to under $104 a barrel.

Among individual companies, McCormick shares slid 6% following a major merger deal. The Spicemaker agreed to combine with the food business of Unilever.

Unilever shares fell over 7%. Appellus Pharmaceuticals shares rose 135% after a buyout from Biogen. Biogen agreed to purchase the company for $41 a share.

Centessa Pharmaceuticals shares rose 44%. The move followed an announcement that Eli Lilly would buy the firm at a 38% premium.

And Marvel Technology shares jumped nearly 13% after announcing a new partnership. The semiconductor company will work with

Nvidia and received a direct investment. Heads up, an artificial intelligence tool helped us

make this episode by creating summaries that were based on WSJ reporting and then reviewed and adapted by an editor. We'll have a lot more coverage of

the day's news on the WSJ's What's News podcast. You can add it to your playlist on your smart

speaker or listen and subscribe wherever you get your podcasts.