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Monolithic Power Systems, Inc. (MPWR) stock

MPWRNasdaqSemiconductors & Related DevicesFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 5, 2026Score 18/3074% above fair value
$1211.63+12.82 (+1.07%)

Close on Oct 30, 2026Market cap $59.54BP/E 74.0Yield 0.52%

Price history

Monolithic Power Systems share prices for every week, newest first. Adjusted for stock splits, not for dividends.

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Close, Oct 30, 2026
$1,211.63
+1.07% on the day
52-week range
$833.18 – $1,714.09
-29.3% from the high
Change over 52 weeks
+11.4%
From $1,087.56 on Oct 30, 2025
Average volume
839,066
Shares a day, last 90 sessions
Week ofOpenHighLowCloseChangeVolume
Oct 26, 2026$1,141.84$1,263.05$1,135.18$1,211.63+6.27%5,308,452
Oct 19, 2026$1,255.41$1,288.27$1,126.57$1,140.12-5.84%4,132,961
Oct 12, 2026$1,365.36$1,365.36$1,195.00$1,210.86-12.65%4,551,132
Oct 5, 2026$1,444.41$1,491.64$1,349.39$1,386.29-3.71%2,824,444
Sep 28, 2026$1,353.13$1,455.99$1,320.80$1,439.73+5.29%2,773,824
Sep 21, 2026$1,243.25$1,387.46$1,217.24$1,367.43+12.29%4,362,244
Sep 14, 2026$1,184.43$1,221.51$1,133.83$1,217.80-1.35%4,544,617
Sep 8, 2026$1,230.64$1,243.09$1,175.95$1,234.46+0.87%2,452,513
Aug 31, 2026$1,261.90$1,279.00$1,189.49$1,223.86-2.58%2,892,069
Aug 24, 2026$1,298.38$1,332.00$1,254.01$1,256.26-4.56%2,681,899
Aug 17, 2026$1,418.01$1,448.76$1,267.77$1,316.28-6.11%3,364,926
Aug 10, 2026$1,428.22$1,464.99$1,355.11$1,402.01+0.03%2,477,439
Aug 3, 2026$1,417.78$1,425.99$1,305.01$1,401.54-1.72%4,384,396
Jul 27, 2026$1,340.00$1,568.21$1,240.02$1,426.03+6.91%6,309,248
Jul 20, 2026$1,332.96$1,419.92$1,318.72$1,333.81+1.66%3,887,444
Jul 13, 2026$1,307.17$1,406.04$1,231.00$1,312.00-3.01%4,355,964
Jul 6, 2026$1,325.74$1,407.09$1,232.04$1,352.74+5.01%4,235,163
Jun 29, 2026$1,328.39$1,388.53$1,258.66$1,288.16-1.92%5,490,538
Jun 22, 2026$1,592.69$1,594.81$1,301.44$1,313.32-16.01%8,098,030
Jun 15, 2026$1,652.56$1,666.64$1,435.83$1,563.70-0.86%4,848,496
Jun 8, 2026$1,559.67$1,627.64$1,405.00$1,577.32+6.50%4,058,951
Jun 1, 2026$1,536.08$1,697.35$1,473.95$1,481.05-5.44%3,778,577
May 26, 2026$1,650.49$1,714.09$1,556.77$1,566.21-1.48%3,346,665
May 18, 2026$1,563.28$1,596.75$1,412.89$1,589.81+2.57%3,126,993
May 11, 2026$1,594.49$1,675.42$1,538.25$1,550.02-3.17%2,944,867
May 4, 2026$1,590.47$1,662.00$1,552.84$1,600.84+1.10%3,339,246
Apr 27, 2026$1,610.43$1,621.91$1,488.03$1,583.48-2.98%3,912,951
Apr 20, 2026$1,471.45$1,661.79$1,453.67$1,632.06+11.15%2,806,988
Apr 13, 2026$1,336.41$1,479.23$1,329.46$1,468.35+8.46%2,521,177
Apr 6, 2026$1,128.35$1,370.00$1,128.03$1,353.85+21.04%3,028,944
Mar 30, 2026$1,057.91$1,138.42$996.01$1,118.49+6.22%2,418,159
Mar 23, 2026$1,100.00$1,127.74$1,039.04$1,053.01-1.48%2,295,717
Mar 16, 2026$1,078.84$1,104.10$1,033.94$1,068.85+1.54%2,802,652
Mar 9, 2026$1,013.05$1,091.38$988.00$1,052.59+2.88%2,586,375
Mar 2, 2026$1,108.08$1,144.60$1,012.46$1,023.16-10.46%3,140,041
Feb 23, 2026$1,204.44$1,256.22$1,128.60$1,142.74-5.10%2,959,412
Feb 17, 2026$1,150.15$1,205.75$1,139.63$1,204.10+2.79%1,482,077
Feb 9, 2026$1,216.00$1,240.90$1,127.34$1,171.47-4.74%3,370,457
Feb 2, 2026$1,110.68$1,250.00$1,100.00$1,229.82+9.40%5,210,246
Jan 26, 2026$1,062.26$1,188.66$1,051.96$1,124.15+5.68%3,619,875
Jan 20, 2026$1,009.51$1,098.93$1,008.50$1,063.74+2.96%2,075,396
Jan 12, 2026$946.46$1,047.99$944.00$1,033.17+7.74%2,198,450
Jan 5, 2026$946.16$1,009.59$936.74$958.97+2.42%3,022,273
Dec 29, 2025$938.00$957.10$906.33$936.31-1.06%1,735,589
Dec 22, 2025$976.05$976.05$935.83$946.32+0.98%1,337,914
Dec 15, 2025$960.80$975.00$909.00$937.11-0.99%8,432,294
Dec 8, 2025$976.03$1,002.50$941.37$946.51-1.74%2,704,783
Dec 1, 2025$908.72$971.12$894.39$963.28+3.78%2,439,419
Nov 24, 2025$887.69$931.78$864.45$928.17+6.40%2,666,166
Nov 17, 2025$914.29$924.00$833.18$872.35-5.20%4,022,391
Nov 10, 2025$986.65$989.72$866.38$920.19-3.97%2,895,394
Nov 3, 2025$1,030.00$1,040.39$904.06$958.26-4.65%3,808,312

Seasonality

MPWR return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.

YearJanFebMarAprMayJunJulAugSepOctNovDec
Average4.4%4.8%0.1%5.9%3.4%4.6%7.7%3.0%-1.9%-0.2%2.8%0.9%
Months up6 of 107 of 105 of 106 of 107 of 107 of 108 of 106 of 105 of 104 of 106 of 94 of 9
202624.0%1.7%-4.1%47.7%-3.0%-11.6%3.2%-11.1%6.4%-10.1%
20257.7%-4.1%-4.8%2.3%11.6%10.7%-2.8%17.5%10.4%9.2%-7.6%-2.2%
2024-4.4%19.5%-5.7%-1.2%9.9%11.9%5.0%8.3%-1.0%-17.9%-25.2%4.5%
202320.6%13.5%3.6%-7.7%6.0%10.5%3.6%-6.8%-11.2%-4.4%24.2%15.1%
2022-18.3%13.8%6.0%-19.2%14.8%-14.6%21.0%-2.5%-19.7%-6.6%12.5%-7.2%
2021-3.0%5.4%-5.5%2.3%-5.1%9.0%20.3%10.2%-2.0%8.4%5.3%-10.8%
2020-3.8%-7.3%5.9%19.4%4.9%13.2%11.8%0.8%4.9%14.3%0.1%14.6%
20198.9%6.0%1.3%14.9%-25.2%17.0%9.1%1.6%3.6%-3.7%7.2%11.0%
20186.0%-1.7%-0.8%1.1%12.6%1.6%-0.7%13.0%-16.0%-5.9%11.8%-11.7%
20176.5%0.8%4.9%-0.7%7.3%-1.6%6.1%-1.0%5.4%14.2%-2.7%-4.9%