Stocks making the biggest moves premarket: CrowdStrike, Rivian, Micron & more

Marvell's $115B acquisition of Lumentum may increase orders for Taiwanese optical component makers, according to industry sources.

Estée Lauder reported 6.7% sales growth to $3.72B in Q1 2027, beating estimates. Its 'Beauty Reimagined' strategy, focusing on digital expansion and AI, is driving recovery. Experts credit new retail channels and consumer engagement for the turnaround.

CrowdStrike Holdings Inc. announced plans to acquire Fiddler AI Inc. and Dreadnode Inc. for a reported $495M. Fiddler specializes in AI security testing, while Dreadnode focuses on simulated cyberattacks to reveal vulnerabilities. CrowdStrike will integrate Dreadnode's tech into its Falcon Guardian product and add an AI Kill Switch feature. According to the Wall Street Journal, Fiddler accounts for about $396M of the total acquisition cost.

SK Hynix's U.S. subsidiary faces regulatory hurdles for a memory chip factory. Netflix launched an AI tool for content matching. TrendForce says Marvell's Lumentum acquisition may challenge Broadcom in AI optics. Meta is reportedly exploring a $20B debt package for operations and capital needs, according to Bloomberg.

CrowdStrike acquires Fiddler AI for $400M and Dreadnode for $95M to enhance AI security capabilities. Fiddler AI's observability tools and Dreadnode's automated testing will be integrated into CrowdStrike's Falcon platform, aiming to capture market share in AI security.

Marvell Technology (MRVL) shares closed up 0.33% at $171.97 after a premarket drop tied to its $115 billion acquisition of Lumentum and analyst downgrades. Trading volume was 37.6 million shares, 67% above average. The S&P 500 and Nasdaq Composite also rose. Marvell raised its revenue outlook to $20 billion for FY2028 and $70-90 billion for FY2031, with Lumentum reporting a 137% YoY sales increase.