Apple falls after President Donald Trump says the tech giant will have to pay a tariff of at least 25% for iPhones made outside the United States, while Tesla stock is on pace to end a four-week winning streak.

Bloomberg journalists discuss today's biggest winners and losers in the stock market. Listen for analysis on the companies making news on Wall Street.

The share price of Oklo Inc. (NYSE: OKLO) surged by 23.04% on May 23, 2025. Let’s shed some light on the development. Backed by OpenAI’s Sam Altman, Oklo Inc. (NYSE:OKLO) develops advanced fission power plants to provide clean, reliable, and affordable energy at scale to customers in the United States.

Sam Altman-backed Oklo Inc. (NYSE: OKLO) and Nano Nuclear Energy Inc surged 19.79% and 17.34%, respectively while nuclear utilities like Constellation Energy Corp (NASDAQ: CEG) and GE Vernova Inc. (NYSE: GEV) climbed 5.

Shares of Oklo soared by double digits for the second day in a row Wednesday after the nuclear technology company announced “a significant step forward” in the construction of its first nuclear power plant.

We recently published a list of Was Jim Cramer Right About These 12 Stocks? In this article, we are going to take a look at where Oklo Inc. (NYSE:OKLO) stands against other stocks that Jim Cramer discusses.

Shares of Oklo ( OKLO 0.30%) are flying this week. Since trading halted last Friday, the nuclear power start-up 's stock has surged 28.2% as of 2:33 p.m. ET. The impressive jump comes as the S&P 500 and Nasdaq-100 both had monster weeks, rising 4.3% and 6.2%, respectively.

Wedbush analyst Dan Ives highlights nuclear energy stocks in a note released Friday and points to Oklo as the star of the sector.

We recently published a list of 10 Stocks That Stole the Show Today. In this article, we are going to take a look at where Oklo Inc. (NYSE:OKLO) stands against other stocks that stole the show today.