U.S. stock futures are jumping on reports that the U.S. may narrow some tariffs; Super Micro Computer (SMCI) shares are in focus after the server maker led the S&P 500 higher on Friday; online ticket seller StubHub files for an IPO; and 23andMe (ME) shares are plunging in premarket trading after the DNA-testing firm files for bankruptcy and its CEO resigns. Here's what investors need to know today.

1. US Stock Futures Soar on Reports of Narrowed Tariffs

U.S. stock futures are jumping on reports that U.S. tariffs may not be as extensive as previously announced. S&P 500 futures are more than 1% higher after the benchmark index broke a four-week losing streak Friday. Nasdaq futures are up 1.4% and Dow Jones Industrial Average futures are higher by 0.9%. Bitcoin (BTCUSD) is up 2% at nearly $88,000. Yields on the 10-year Treasury note and oil and gold futures also are advancing.

2. Trump May Narrow April 2 Tariffs, Reports Say

President Donald Trump may narrow the U.S. approach to tariffs when it announces a comprehensive set of reciprocal levies on April 2, according to reports. The administration is likely to exclude some tariffs, including import taxes focused on specific sectors of the economy, Bloomberg first reported, citing officials familiar with the matter. "Only countries that don't have tariffs on the U.S., and with whom the U.S. has a trade surplus, will not be tariffed under the reciprocal plan," the outlet said.

3. Supermicro Stock in Focus After Leading S&P 500 Risers Friday

Super Micro Computer (SMCI) shares are little changed in premarket trading after the server maker soared 7.8% Friday to lead the S&P 500 higher amid positive analyst commentary on increasing demand for artificial intelligence (AI) infrastructure. The company has projected significant revenue growth on AI demand after accounting and corporate governance challenges weighed on the company's stock last year. Supermicro shares have gained nearly 40% in 2025 entering Monday.

4. Ticket Seller StubHub Files for IPO on NYSE

Online ticket-reselling platform StubHub has filed a prospectus for an initial public offering (IPO) to list on the New York Stock Exchange (NYSE) under the ticker "STUB." The company said that it sold more than 40 million tickets on its marketplace in 2024, with Gross Merchandise Sales (GMS) of $8.68 billion, up 27% year-over-year. StubHub reported a 2024 net loss of $2.8 million after logging a profit of $405.2 million in 2023, it said in its Form S-1 filing with the U.S. Securities and Exchange Commission (SEC). StubHub reportedly delayed filing for an IPO last July because of weak market conditions.

5. DNA-Testing Firm 23andMe Files for Bankruptcy, CEO Resigns

Shares of Nasdaq-listed 23andMe (ME) are plunging more than 40% in premarket trading after the DNA-testing firm announced it was filing for bankruptcy and that CEO Anne Wojcicki had resigned, effective immediately. The company said the Chapter 11 bankruptcy filing will "facilitate a sale process to maximize the value of its business." Wojcicki, who will continue to serve on the board, tried to take the company private last April, less than three years after it went public.