Investors who positioned themselves ahead of Monday’s U.S.–China tariff breakthrough saw major premarket gains, with the Nasdaq 100 up 4.16% and the S&P 500 up 3.19% before the opening bell. High-momentum, fundamentally strong stocks led the charge—while those still sitting on the sidelines are scrambling to catch up.

Leading the Premarket Charge
Several names have already delivered double-digit month-to-date returns and are soaring again today:

Microchip Technology (NASDAQ:MCHP): +6.2% premarket; +26.3% since early May

VF Corporation (NYSE:VFC): +8.6% premarket; +17% in May

Axcelis Technologies (NASDAQ:ACLS): +23.2% in May

Lumen Technologies (NYSE:LUMN): +24% in May

Tech bellwethers also powered higher:

Amazon (NASDAQ:AMZN): +7.8% premarket

Marvell (NASDAQ:MRVL): +7.8% premarket

Teradyne (NASDAQ:TER): +5.9% premarket

Universal Display (NASDAQ:OLED): +5.7% premarket

For a live, up-to-the-minute snapshot of today’s biggest winners, check the Market Biggest Gainers API.

The Price of Missing the Big Moves
A JPMorgan study shows that skipping the 10 best trading days over the past 20 years would have cut the S&P 500’s total return in half. Today’s premarket surge is a reminder that timing the market can leave you far behind.

What to Watch

Opening Bell Follow-Through: Can these early gains hold into the regular session?

Tariff Rollout Details: Sector-specific duty cuts could fuel further upside.

Volatility Trends: Monitor the VIX for clues on whether this is a sustained rally or a bear-market bounce.

By staying invested and tracking real-time market movers, you position yourself to capitalize on these rapid shifts—rather than playing catch-up once the move has already happened.