U.S. stock futures are pointing sharply lower as tariff announcements continue to roil markets; Marvell Technology (MRVL) shares are tumbling in premarket trading after the chipmaker's outlook failed to impress; analysts are expecting rising sales and profits from Costco Wholesale's (COST) quarterly report after the bell; Broadcom (AVGO) shares are falling ahead of its earnings report, which comes amid turmoil in the tech sector; and MongoDB (MDB) stock is sinking after the🌜 database software maker issued a soft full-year outlook. Here's what investors need to know today.

1. US Stock Futures Point Sharply Lower Amid Market Swings Ov😼er Ta♉riffs

U.S. stock futures are pointing sharply lower as market volatility continues around the implementation of tariffs. Nasdaq futures are 1.4% lower, giving back most of the index's 澳洲幸运5开奖号码历史查询:gains from the prior session that followed reports that 澳洲幸运5开奖号码历史查询:tariffs on automobiles would be delayed. 澳洲幸运5开奖号码历史查询:Dow Jones Industrial Average and 澳洲幸运5开奖号码历史查询:S&P 500 futures are down around 1%. Bitcoin (BTCUSD) is slightly higher to trade at over $91,000. Yields on the 10-year Treasury note and oil fut🔥ures are rising. Gold futures are lower.

2. Marvell Stock Plunges on Lackluster Outlook

Marvell Technology (MRVL) shares are plunging about 18% in premarket trading after the semiconductor company's 澳洲幸运5开奖号码历史查询:outlook failed to impress investors. The 澳洲幸运5开奖号码历史查询:semiconductor company reported fourth-quarter adjusted 澳洲幸运5开奖号码历史查询:earnings per share (EPS) of $0.60 on revenue that jumped 27% year-over-year to $1.82 billion, both above Visible Alpha consensus. Marvell's current-quarter projections were mostly in line with estimates, but expectations for its outlook were high heading into the results, with Bank of America analysts calling for AI-driven upside and a "largely better" forecast.

3. Analysts Looking fo🌺r Rising Revenue, Profits From Co𒁃stco

Costco Wholesale (COST) is expected to 澳洲幸运5开奖号码历史查询:report rising revenue and profit when it posts second-quarter results after the bell today. Costco is projected to report EPS of $4.13 on revenue of $63 billion, according to Visible Alpha, up from $3.92 and $58.44 billion a year ago. The quarter will mark the second since Costco's 澳洲幸运5开奖号码历史查询:first membership fee bump in seven years went into effect in Septembꦑer. Costco shares are down less than 1% in premarket trading.

4. B🌼roadcom Stock Dips Before Earnings Amid Tech Selloff

Broadcom (AVGO) is preparing to report its quarterly results after markets close today amid 澳洲幸运5开奖号码历史查询:optimism over the chipmaker's stock despite recent losses. Analysts expect the company to report increasing earnings and sales, with revenue projected to grow 22% year-over-year, according to Visible Alpha. The report comes as 澳洲幸运5开奖号码历史查询:chip and AI stocks sold off earlier this week amid worries over tariff impacts on the tech sector. Broadcom shares, which are more than 4% lower in premarket trading, have lost roughly a qu🔯arter of their value since hitting an all-time high in December.

5. MongoDB Stock Tanks on Software Maker's Soft Outlook

MongoDB (MDB) stock is sinking 19% in premarket trading after the database software maker issued a soft full-year outlook. The company projected fiscal 2026 adjusted EPS between $2.44 and $2.62 on revenue of $2.24 billion to $2.28 billion. Analysts polled by Visible Alpha were expecting $3.37 and $2.32 billion, respectively. The outlook offset strong fourth-quarter fiscal 2025 results, which easily topped estimates.