NASDAQ:MPWR | Historical Stock Price | MONOLITHIC POWER SYSTEMS, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2004-11-19 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$6.00$19.27$61.83$198.44$636.82$2,043.652004-11-192026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$116.25$128.44256,000
2018-12-28$115.00$127.06390,500
2018-12-27$114.09$125.73370,500
2018-12-26$114.03$125.66307,200
2018-12-24$106.62$117.49183,200
2018-12-21$110.41$121.67533,500
2018-12-20$112.74$124.24426,600
2018-12-19$112.83$124.34428,900
2018-12-18$117.88$129.90416,600
2018-12-17$113.75$125.35577,200
2018-12-14$118.62$130.72223,600
2018-12-13$121.25$133.62152,600
2018-12-12$123.65$136.26206,400
2018-12-11$120.67$132.98288,900
2018-12-10$120.15$132.40510,000
2018-12-07$121.83$134.25274,100
2018-12-06$125.54$138.34425,900
2018-12-04$126.84$139.78373,200
2018-12-03$134.73$148.47423,400
2018-11-30$132.07$145.54311,100
2018-11-29$129.39$142.59434,400
2018-11-28$128.99$142.15366,900
2018-11-27$123.62$136.23255,300
2018-11-26$126.97$139.92319,400
2018-11-23$124.33$137.0189,000
2018-11-21$123.58$136.18192,000
2018-11-20$120.32$132.59398,000
2018-11-19$120.63$132.93417,500
2018-11-16$127.83$140.87395,600
2018-11-15$126.95$139.90378,200
2018-11-14$122.14$134.60391,600
2018-11-13$120.99$133.33262,800
2018-11-12$119.32$131.49504,700
2018-11-09$124.72$137.44335,100
2018-11-08$129.22$142.40594,100
2018-11-07$125.70$138.52322,100
2018-11-06$124.22$136.89236,000
2018-11-05$122.53$135.03415,400
2018-11-02$124.28$136.95528,000
2018-11-01$124.32$137.00719,300
2018-10-31$118.12$130.17568,600
2018-10-30$115.30$127.06465,900
2018-10-29$111.35$122.71791,400
2018-10-26$112.61$124.091,416,900
2018-10-25$108.43$119.491,023,300
2018-10-24$104.17$114.79880,900
2018-10-23$114.95$126.67489,300
2018-10-22$114.43$126.10346,200
2018-10-19$114.35$126.01378,000
2018-10-18$115.75$127.55404,400
2018-10-17$118.87$130.99523,600
2018-10-16$118.30$130.36547,200
2018-10-15$113.99$125.62346,600
2018-10-12$113.96$125.58626,400
2018-10-11$110.89$122.20632,000
2018-10-10$110.40$121.66759,600
2018-10-09$116.71$128.61495,800
2018-10-08$116.72$128.62690,500
2018-10-05$119.46$131.64748,200
2018-10-04$124.17$136.83720,200
2018-10-03$127.97$141.02851,300
2018-10-02$124.80$137.53378,500
2018-10-01$124.43$137.12452,600
2018-09-28$125.53$138.33579,100
2018-09-27$126.31$139.19452,400
2018-09-26$126.94$139.56503,100
2018-09-25$129.14$141.97883,000
2018-09-24$132.81$146.01382,500
2018-09-21$132.90$146.11585,500
2018-09-20$135.26$148.70329,100
2018-09-19$133.64$146.92359,300
2018-09-18$133.03$146.25498,700
2018-09-17$132.55$145.72399,200
2018-09-14$138.21$151.95686,100
2018-09-13$136.78$150.371,206,800
2018-09-12$141.37$155.42485,200
2018-09-11$146.01$160.52374,000
2018-09-10$146.53$161.09318,700
2018-09-07$147.99$162.70304,300
2018-09-06$149.32$164.16257,600
2018-09-05$149.30$164.14306,200
2018-09-04$151.38$166.42251,300
2018-08-31$149.87$164.76257,100
2018-08-30$148.54$163.30141,300
2018-08-29$149.46$164.31165,500
2018-08-28$149.15$163.97174,700
2018-08-27$149.28$164.12399,000
2018-08-24$147.24$161.87190,300
2018-08-23$145.55$160.01238,500
2018-08-22$145.56$160.03288,600
2018-08-21$144.74$159.12316,300
2018-08-20$141.97$156.08229,100
2018-08-17$140.72$154.70248,900
2018-08-16$140.32$154.27224,900
2018-08-15$139.92$153.83308,200
2018-08-14$141.26$155.30360,900
2018-08-13$139.79$153.68380,500
2018-08-10$139.42$153.28494,000
2018-08-09$139.69$153.57289,300
2018-08-08$141.80$155.89240,300
2018-08-07$141.45$155.51514,400
2018-08-06$137.27$150.91208,700
2018-08-03$135.70$149.19370,400
2018-08-02$135.63$149.11323,900
2018-08-01$131.96$145.07301,800
2018-07-31$132.68$145.87331,100
2018-07-30$131.05$144.07358,500
2018-07-27$132.52$145.69299,400
2018-07-26$136.16$149.69700,100
2018-07-25$135.49$148.96594,900
2018-07-24$137.47$151.13299,300
2018-07-23$141.51$155.57337,300
2018-07-20$140.72$154.70236,200
2018-07-19$141.80$155.89179,900
2018-07-18$141.45$155.51161,500
2018-07-17$141.35$155.40266,700
2018-07-16$139.69$153.57138,100
2018-07-13$139.91$153.81273,300
2018-07-12$140.23$154.17212,000
2018-07-11$137.21$150.85273,700
2018-07-10$140.68$154.66258,800
2018-07-09$138.22$151.96293,600
2018-07-06$138.31$152.06309,400
2018-07-05$136.34$149.89623,500
2018-07-03$132.70$145.89219,700
2018-07-02$134.71$148.10345,800
2018-06-29$133.67$146.95434,400
2018-06-28$134.57$147.94355,300
2018-06-27$133.38$146.31419,000
2018-06-26$136.92$150.19484,300
2018-06-25$134.26$147.27585,600
2018-06-22$138.54$151.974,484,100
2018-06-21$141.13$154.81495,700
2018-06-20$141.30$154.99278,400
2018-06-19$139.07$152.55292,500
2018-06-18$141.12$154.80262,700
2018-06-15$141.63$155.36467,500
2018-06-14$139.71$153.25433,500
2018-06-13$137.66$151.00380,900
2018-06-12$139.73$153.27326,000
2018-06-11$137.34$150.65227,700
2018-06-08$134.26$147.27491,100
2018-06-07$133.37$146.29292,500
2018-06-06$137.19$150.48212,100
2018-06-05$135.76$148.92197,700
2018-06-04$134.68$147.73231,100
2018-06-01$133.30$146.22335,500
2018-05-31$131.81$144.58223,300
2018-05-30$133.84$146.81445,600
2018-05-29$131.54$144.29272,800
2018-05-25$131.71$144.47152,800
2018-05-24$130.59$143.25133,000
2018-05-23$130.72$143.39184,000
2018-05-22$129.54$142.09205,100
2018-05-21$129.77$142.35217,500
2018-05-18$128.94$141.44313,500
2018-05-17$128.76$141.24189,900
2018-05-16$127.77$140.15296,600
2018-05-15$126.23$138.46309,000
2018-05-14$126.17$138.40292,000
2018-05-11$126.56$138.82157,300
2018-05-10$128.67$141.14311,800
2018-05-09$126.17$138.40271,800
2018-05-08$124.11$136.14355,900
2018-05-07$123.84$135.84219,200
2018-05-04$123.87$135.87243,300
2018-05-03$120.27$131.93400,200
2018-05-02$118.35$129.82259,100
2018-05-01$119.12$130.66511,500
2018-04-30$117.10$128.45412,800
2018-04-27$120.28$131.94316,800
2018-04-26$121.25$133.00189,000
2018-04-25$119.38$130.95275,300
2018-04-24$119.01$130.54342,500
2018-04-23$119.00$130.53356,000
2018-04-20$119.51$131.09309,600
2018-04-19$120.24$131.89379,300
2018-04-18$123.78$135.78182,300
2018-04-17$124.36$136.41239,800
2018-04-16$122.01$133.83228,700
2018-04-13$120.83$132.54318,700
2018-04-12$121.02$132.75357,700
2018-04-11$116.98$128.32179,700
2018-04-10$115.84$127.07206,400
2018-04-09$111.56$122.37234,300
2018-04-06$110.94$121.69173,300
2018-04-05$114.11$125.17193,900
2018-04-04$114.37$125.45200,100
2018-04-03$112.36$123.25415,900
2018-04-02$110.80$121.54301,400
2018-03-29$115.77$126.99298,900
2018-03-28$113.21$124.18252,800
2018-03-27$115.72$126.61419,000
2018-03-26$119.85$131.12336,000
2018-03-23$114.89$125.70352,900
2018-03-22$120.03$131.32238,500
2018-03-21$125.39$137.18307,100
2018-03-20$125.11$136.88339,100
2018-03-19$123.06$134.64338,300
2018-03-16$124.72$136.45488,600
2018-03-15$123.40$135.01245,000
2018-03-14$123.20$134.79165,000
2018-03-13$123.70$135.34249,100
2018-03-12$125.51$137.32214,600
2018-03-09$124.87$136.62268,400
2018-03-08$119.87$131.15232,000
2018-03-07$119.37$130.60223,400
2018-03-06$119.03$130.23380,800
2018-03-05$118.42$129.56223,100
2018-03-02$118.15$129.26194,400
2018-03-01$115.77$126.66214,800
2018-02-28$117.06$128.07197,400
2018-02-27$118.58$129.73455,600
2018-02-26$119.82$131.09156,400
2018-02-23$118.05$129.15223,400
2018-02-22$117.19$128.21258,900
2018-02-21$117.16$128.18283,300
2018-02-20$119.68$130.94417,100
2018-02-16$117.00$128.01411,600
2018-02-15$116.17$127.10329,000
2018-02-14$112.99$123.62389,700
2018-02-13$109.97$120.31409,000
2018-02-12$109.91$120.25667,200
2018-02-09$110.08$120.431,038,100
2018-02-08$103.82$113.59674,700
2018-02-07$110.00$120.35384,200
2018-02-06$114.04$124.77645,600
2018-02-05$109.54$119.84507,400
2018-02-02$115.04$125.86337,300
2018-02-01$120.19$131.50172,500
2018-01-31$119.12$130.32225,300
2018-01-30$119.58$130.83303,700
2018-01-29$122.76$134.31307,200
2018-01-26$122.42$133.94223,900
2018-01-25$117.58$128.64322,800
2018-01-24$119.97$131.25377,900
2018-01-23$121.14$132.53379,600
2018-01-22$120.19$131.50384,100
2018-01-19$119.99$131.28304,000
2018-01-18$119.68$130.94315,300
2018-01-17$120.51$131.85542,900
2018-01-16$119.90$131.18283,300
2018-01-12$122.89$134.45120,700
2018-01-11$121.72$133.17213,200
2018-01-10$120.02$131.31212,200
2018-01-09$121.35$132.76157,800
2018-01-08$121.56$132.99206,700
2018-01-05$120.07$131.36227,700
2018-01-04$119.60$130.85183,700
2018-01-03$118.50$129.65268,100
2018-01-02$116.31$127.25285,800