Monolithic Power Systems, Inc. (MPWR)
NASDAQ: MPWR · Real-Time Price · USD
856.96
-40.05 (-4.46%)
At close: Nov 18, 2025, 4:00 PM EST
852.71
-4.25 (-0.50%)
After-hours: Nov 18, 2025, 4:44 PM EST
Monolithic Power Systems Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Nov 18, 2025 | 887.22 | 894.51 | 854.80 | 856.00 | - | -4.57% | 625,831 |
| Nov 17, 2025 | 914.29 | 924.00 | 879.42 | 897.01 | 897.01 | -2.52% | 484,222 |
| Nov 14, 2025 | 879.11 | 938.54 | 866.38 | 920.19 | 920.19 | -0.44% | 486,195 |
| Nov 13, 2025 | 950.67 | 959.17 | 912.95 | 924.29 | 924.29 | -3.55% | 676,205 |
| Nov 12, 2025 | 973.99 | 980.95 | 957.00 | 958.35 | 958.35 | 0.38% | 543,923 |
| Nov 11, 2025 | 967.19 | 978.76 | 951.12 | 954.71 | 954.71 | -2.21% | 580,565 |
| Nov 10, 2025 | 986.65 | 989.72 | 947.87 | 976.31 | 976.31 | 1.88% | 608,506 |
| Nov 7, 2025 | 944.00 | 959.01 | 904.06 | 958.26 | 958.26 | 0.02% | 740,045 |
| Nov 6, 2025 | 995.15 | 1,006.00 | 954.09 | 958.07 | 958.07 | -4.21% | 676,976 |
| Nov 5, 2025 | 961.04 | 1,014.99 | 956.68 | 1,000.15 | 1,000.15 | 4.41% | 697,162 |
| Nov 4, 2025 | 966.12 | 976.91 | 953.09 | 957.87 | 957.87 | -4.59% | 866,121 |
| Nov 3, 2025 | 1,030.00 | 1,040.39 | 984.75 | 1,003.93 | 1,003.93 | -0.11% | 828,008 |
| Oct 31, 2025 | 1,020.16 | 1,038.33 | 935.93 | 1,005.00 | 1,005.00 | -7.59% | 1,646,492 |
| Oct 30, 2025 | 1,070.76 | 1,100.51 | 1,070.76 | 1,087.56 | 1,087.56 | -0.60% | 1,262,725 |
| Oct 29, 2025 | 1,095.97 | 1,123.38 | 1,090.50 | 1,094.08 | 1,094.08 | 0.71% | 817,568 |
| Oct 28, 2025 | 1,097.85 | 1,111.03 | 1,085.99 | 1,086.36 | 1,086.36 | -1.69% | 475,891 |
| Oct 27, 2025 | 1,097.28 | 1,112.06 | 1,093.70 | 1,105.05 | 1,105.05 | 2.80% | 555,034 |
| Oct 24, 2025 | 1,086.10 | 1,091.91 | 1,073.53 | 1,074.91 | 1,074.91 | 0.38% | 378,719 |
| Oct 23, 2025 | 1,045.00 | 1,076.00 | 1,038.60 | 1,070.80 | 1,070.80 | 6.93% | 727,570 |
| Oct 22, 2025 | 1,013.55 | 1,022.76 | 980.78 | 1,001.40 | 1,001.40 | -2.65% | 713,158 |
| Oct 21, 2025 | 1,027.32 | 1,035.70 | 1,012.35 | 1,028.67 | 1,028.67 | -0.28% | 255,137 |
| Oct 20, 2025 | 1,018.58 | 1,037.89 | 1,018.58 | 1,031.59 | 1,031.59 | 2.68% | 442,631 |
| Oct 17, 2025 | 1,002.90 | 1,024.34 | 994.86 | 1,004.65 | 1,004.65 | -2.16% | 502,945 |
| Oct 16, 2025 | 1,011.52 | 1,041.50 | 1,007.93 | 1,026.83 | 1,026.83 | 1.88% | 517,834 |
| Oct 15, 2025 | 1,000.00 | 1,016.96 | 987.31 | 1,007.93 | 1,007.93 | 4.10% | 632,176 |
| Oct 14, 2025 | 967.54 | 994.83 | 960.00 | 968.25 | 968.25 | -1.37% | 754,100 |
| Oct 13, 2025 | 967.60 | 990.67 | 953.66 | 981.67 | 981.67 | 8.54% | 774,368 |
| Oct 10, 2025 | 985.45 | 990.25 | 901.39 | 904.44 | 904.44 | -7.64% | 872,625 |
| Oct 9, 2025 | 973.83 | 980.10 | 961.94 | 979.25 | 979.25 | -0.17% | 361,405 |
| Oct 8, 2025 | 947.19 | 983.48 | 945.99 | 980.90 | 980.90 | 3.75% | 570,450 |
| Oct 7, 2025 | 969.70 | 972.74 | 940.88 | 945.49 | 945.49 | -2.34% | 423,286 |
| Oct 6, 2025 | 932.58 | 986.63 | 930.61 | 968.10 | 968.10 | 5.36% | 652,354 |
| Oct 3, 2025 | 940.44 | 954.81 | 916.80 | 918.83 | 918.83 | -1.26% | 420,468 |
| Oct 2, 2025 | 927.25 | 940.11 | 925.05 | 930.51 | 930.51 | 1.60% | 389,536 |
| Oct 1, 2025 | 907.37 | 923.34 | 894.89 | 915.87 | 915.87 | -0.52% | 444,382 |
| Sep 30, 2025 | 898.16 | 929.50 | 894.38 | 920.64 | 920.64 | 3.84% | 505,776 |
| Sep 29, 2025 | 908.52 | 915.65 | 885.92 | 886.59 | 885.03 | -0.11% | 333,465 |
| Sep 26, 2025 | 888.55 | 892.54 | 877.00 | 887.55 | 885.99 | -0.43% | 304,299 |
| Sep 25, 2025 | 897.65 | 898.19 | 872.29 | 891.39 | 889.82 | -1.88% | 336,512 |
| Sep 24, 2025 | 920.33 | 920.33 | 899.90 | 908.45 | 906.85 | -0.64% | 349,436 |
| Sep 23, 2025 | 917.64 | 932.25 | 907.02 | 914.27 | 912.66 | -0.93% | 425,496 |
| Sep 22, 2025 | 920.40 | 938.04 | 917.79 | 922.81 | 921.19 | 0.70% | 416,584 |
| Sep 19, 2025 | 923.37 | 923.37 | 893.07 | 916.36 | 914.75 | -0.15% | 1,232,124 |
| Sep 18, 2025 | 895.35 | 924.40 | 890.09 | 917.78 | 916.17 | 4.57% | 853,397 |
| Sep 17, 2025 | 856.42 | 884.46 | 850.00 | 877.66 | 876.12 | 2.41% | 408,444 |
| Sep 16, 2025 | 847.57 | 860.20 | 844.63 | 857.02 | 855.51 | 0.86% | 401,264 |
| Sep 15, 2025 | 838.00 | 852.54 | 831.00 | 849.71 | 848.21 | 1.87% | 393,389 |
| Sep 12, 2025 | 844.96 | 844.96 | 830.00 | 834.14 | 832.67 | -0.74% | 329,693 |
| Sep 11, 2025 | 855.16 | 860.60 | 830.37 | 840.38 | 838.90 | -1.73% | 576,065 |
| Sep 10, 2025 | 868.88 | 869.70 | 846.00 | 855.18 | 853.68 | -0.31% | 751,897 |