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MPWR
Monolithic Power Systems Inc.Stock · Technology · Nasdaq-100 0.3% · S&P 500 0.10%
$1,333.18−$82.81 (-5.85%)as of market close, Aug 18, 2026
☾ After hours:$1,339.00+0.44%7:59 PM ET
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MPWR monthly returns

Monolithic Power Systems Inc. has averaged 2.67% per month, positive in 60% of months. Month-by-month returns for Monolithic Power Systems Inc. (MPWR) below, through August 18, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.

Average month
+2.7%
260 months
Best month
+51.1%
Oct 2005
Worst month
-43.7%
Nov 2008
Positive months
60%
of all months

Monolithic Power Systems Inc. monthly returns#

Monolithic Power Systems Inc. total return by month
MonthTotal return
Aug 2026
-6.5%
Jul 2026
+4.4%
Jun 2026
-12.8%
May 2026
-3.0%
Apr 2026
+47.7%
Mar 2026
-4.2%
Feb 2026
+1.7%
Jan 2026
+24.0%
Dec 2025
-2.2%
Nov 2025
-7.6%
Oct 2025
+9.2%
Sep 2025
+10.4%
Aug 2025
+17.5%
Jul 2025
-2.8%
Jun 2025
+10.8%

Monthly total return (since Sep 2021)

-40%-20%+0%+20%+40%
20222023202420252026

Methodology#

Monthly returns are total returns (dividends reinvested), computed from MPWR's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.

See also: S&P 500 · Nasdaq-100 · Dow Jones · Russell 2000 · US Bond Market · Gold · Silver · Bitcoin · Ethereum

FAQ#

What is Monolithic Power Systems Inc.'s average monthly return?
Monolithic Power Systems Inc. (MPWR) has averaged about 2.67% per month, positive in roughly 60% of months. The best month was Oct 2005 (+51.1%) and the worst was Nov 2008 (-43.7%).