Marvell Tech Flirts with All-Time Highs Ahead of Earnings: Can Custom AI Silicon Justify MRVL's Valuation Premium?

Semiconductor heavyweight Marvell Technology Inc. (NASDAQ: MRVL) has emerged as one of the most explosive stories in the tech sector, doubling its market value year-to-date. Closing at $186.80 (+5.97%) on May 20, 2026, and creeping up to $189.47 in after-hours trading, the chipmaker is breathing down the neck of its 52-week high of $193.32.