Monolithic Power Systems (MPWR) Stock After Hours Today (Dec. 19, 2025): Truist’s $1,375 Target, Nasdaq-100 Addition, and What to Watch Before the Next Open
Monolithic Power Systems, Inc. (NASDAQ: MPWR) ended Friday’s session higher and then held essentially flat in after-hours trading, closing the week on a day when market mechanics—notably the year’s big options expiration—can distort volume and late-day price action. MPWR closed