Monolithic Power Systems, Inc. (MPWR)
NASDAQ: MPWR · Real-Time Price · USD
1,142.74
-37.39 (-3.17%)
At close: Feb 27, 2026, 4:00 PM EST
1,137.80
-4.94 (-0.43%)
After-hours: Feb 27, 2026, 7:59 PM EST
Monolithic Power Systems Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Feb 27, 2026 | 1,156.07 | 1,163.38 | 1,128.60 | 1,142.74 | 1,142.74 | -3.17% | 790,349 |
| Feb 26, 2026 | 1,237.20 | 1,239.70 | 1,152.78 | 1,180.13 | 1,180.13 | -4.21% | 643,626 |
| Feb 25, 2026 | 1,226.81 | 1,256.22 | 1,220.24 | 1,231.95 | 1,231.95 | 1.51% | 433,753 |
| Feb 24, 2026 | 1,200.01 | 1,240.25 | 1,161.81 | 1,213.67 | 1,213.67 | 1.98% | 586,415 |
| Feb 23, 2026 | 1,204.44 | 1,220.00 | 1,171.42 | 1,190.06 | 1,190.06 | -1.17% | 461,539 |
| Feb 20, 2026 | 1,160.31 | 1,205.75 | 1,160.31 | 1,204.10 | 1,204.10 | 2.46% | 365,309 |
| Feb 19, 2026 | 1,170.28 | 1,175.62 | 1,152.85 | 1,175.22 | 1,175.22 | -1.10% | 301,696 |
| Feb 18, 2026 | 1,177.73 | 1,202.92 | 1,172.35 | 1,188.32 | 1,188.32 | 1.29% | 346,299 |
| Feb 17, 2026 | 1,150.15 | 1,191.35 | 1,139.63 | 1,173.18 | 1,173.18 | 0.15% | 446,761 |
| Feb 13, 2026 | 1,149.06 | 1,173.38 | 1,136.09 | 1,171.47 | 1,171.47 | 1.34% | 434,361 |
| Feb 12, 2026 | 1,206.25 | 1,225.17 | 1,151.23 | 1,155.93 | 1,155.93 | -3.41% | 726,415 |
| Feb 11, 2026 | 1,165.00 | 1,204.00 | 1,154.40 | 1,196.73 | 1,196.73 | 4.79% | 769,172 |
| Feb 10, 2026 | 1,197.26 | 1,197.26 | 1,127.34 | 1,142.02 | 1,142.02 | -5.32% | 779,568 |
| Feb 9, 2026 | 1,216.00 | 1,240.90 | 1,180.22 | 1,206.18 | 1,206.18 | -1.92% | 660,941 |
| Feb 6, 2026 | 1,250.00 | 1,250.00 | 1,169.62 | 1,229.82 | 1,229.82 | 6.39% | 1,557,036 |
| Feb 5, 2026 | 1,125.60 | 1,179.00 | 1,100.00 | 1,155.99 | 1,155.99 | 1.69% | 820,359 |
| Feb 4, 2026 | 1,167.50 | 1,226.30 | 1,109.00 | 1,136.83 | 1,136.83 | -2.40% | 1,263,257 |
| Feb 3, 2026 | 1,185.01 | 1,199.76 | 1,142.71 | 1,164.83 | 1,164.83 | -0.72% | 840,260 |
| Feb 2, 2026 | 1,110.68 | 1,182.41 | 1,100.00 | 1,173.22 | 1,173.22 | 4.37% | 729,334 |
| Jan 30, 2026 | 1,153.73 | 1,188.66 | 1,113.84 | 1,124.15 | 1,124.15 | -4.99% | 1,046,263 |
| Jan 29, 2026 | 1,165.93 | 1,185.05 | 1,120.99 | 1,183.15 | 1,183.15 | 1.84% | 642,902 |
| Jan 28, 2026 | 1,110.48 | 1,171.57 | 1,109.50 | 1,161.78 | 1,161.78 | 6.05% | 668,070 |
| Jan 27, 2026 | 1,094.14 | 1,110.18 | 1,088.01 | 1,095.49 | 1,095.49 | 2.56% | 578,936 |
| Jan 26, 2026 | 1,062.26 | 1,077.25 | 1,051.96 | 1,068.14 | 1,068.14 | 0.41% | 683,704 |
| Jan 23, 2026 | 1,077.61 | 1,087.44 | 1,050.88 | 1,063.74 | 1,063.74 | -1.20% | 402,564 |
| Jan 22, 2026 | 1,092.64 | 1,098.93 | 1,071.94 | 1,076.67 | 1,076.67 | 0.16% | 409,423 |
| Jan 21, 2026 | 1,046.84 | 1,087.81 | 1,043.89 | 1,074.93 | 1,074.93 | 3.91% | 601,346 |
| Jan 20, 2026 | 1,009.51 | 1,055.00 | 1,008.50 | 1,034.49 | 1,034.49 | 0.13% | 662,063 |
| Jan 16, 2026 | 1,030.00 | 1,047.99 | 1,019.49 | 1,033.17 | 1,033.17 | 2.34% | 547,742 |
| Jan 15, 2026 | 1,014.06 | 1,041.95 | 1,008.05 | 1,009.54 | 1,009.54 | 2.64% | 537,175 |
| Jan 14, 2026 | 980.55 | 998.65 | 964.11 | 983.60 | 983.60 | 0.03% | 420,943 |
| Jan 13, 2026 | 976.54 | 1,004.74 | 970.74 | 983.28 | 983.28 | 1.67% | 342,180 |
| Jan 12, 2026 | 946.46 | 970.99 | 944.00 | 967.16 | 967.16 | 0.85% | 350,410 |
| Jan 9, 2026 | 965.00 | 975.63 | 950.41 | 958.97 | 958.97 | -0.01% | 529,471 |
| Jan 8, 2026 | 947.67 | 960.37 | 941.10 | 959.09 | 959.09 | - | 457,353 |
| Jan 7, 2026 | 990.28 | 998.59 | 936.74 | 959.08 | 959.08 | -4.61% | 727,196 |
| Jan 6, 2026 | 969.79 | 1,009.59 | 967.36 | 1,005.38 | 1,005.38 | 5.27% | 659,104 |
| Jan 5, 2026 | 946.16 | 966.06 | 938.24 | 955.03 | 955.03 | 2.00% | 649,149 |
| Jan 2, 2026 | 927.61 | 957.10 | 926.18 | 936.31 | 936.31 | 3.30% | 618,935 |
| Dec 31, 2025 | 926.36 | 928.07 | 906.33 | 906.36 | 906.36 | -1.90% | 381,933 |
| Dec 30, 2025 | 929.39 | 935.16 | 923.12 | 923.91 | 922.35 | -0.66% | 288,335 |
| Dec 29, 2025 | 938.00 | 949.29 | 928.90 | 930.04 | 928.47 | -1.72% | 446,386 |
| Dec 26, 2025 | 960.44 | 960.44 | 944.62 | 946.32 | 944.72 | -0.73% | 221,593 |
| Dec 24, 2025 | 954.75 | 958.08 | 947.05 | 953.25 | 951.64 | 1.03% | 191,715 |
| Dec 23, 2025 | 939.88 | 946.51 | 935.83 | 943.55 | 941.96 | -0.17% | 355,430 |
| Dec 22, 2025 | 976.05 | 976.05 | 937.10 | 945.16 | 943.56 | 0.86% | 569,176 |
| Dec 19, 2025 | 941.89 | 966.33 | 937.11 | 937.11 | 935.53 | 0.82% | 5,577,195 |
| Dec 18, 2025 | 936.41 | 951.63 | 922.88 | 929.48 | 927.91 | 1.89% | 731,426 |
| Dec 17, 2025 | 959.61 | 966.14 | 909.00 | 912.25 | 910.71 | -4.11% | 855,814 |
| Dec 16, 2025 | 947.81 | 968.84 | 942.00 | 951.36 | 949.75 | 0.21% | 576,956 |
| Dec 15, 2025 | 960.80 | 975.00 | 946.45 | 949.40 | 947.80 | 0.31% | 690,903 |
| Dec 12, 2025 | 980.00 | 988.10 | 941.37 | 946.51 | 944.91 | -3.56% | 781,916 |
| Dec 11, 2025 | 967.62 | 987.59 | 950.55 | 981.48 | 979.82 | 0.25% | 590,872 |
| Dec 10, 2025 | 968.54 | 989.25 | 962.95 | 979.02 | 977.37 | 1.67% | 446,734 |
| Dec 9, 2025 | 978.54 | 988.05 | 957.39 | 962.95 | 961.32 | -2.10% | 440,423 |
| Dec 8, 2025 | 976.03 | 1,002.50 | 974.46 | 983.58 | 981.92 | 2.11% | 444,838 |
| Dec 5, 2025 | 964.25 | 971.12 | 954.39 | 963.28 | 961.65 | 1.11% | 348,120 |
| Dec 4, 2025 | 950.10 | 959.38 | 931.98 | 952.74 | 951.13 | -0.55% | 479,087 |
| Dec 3, 2025 | 954.31 | 962.22 | 933.82 | 958.02 | 956.40 | 0.61% | 464,203 |
| Dec 2, 2025 | 938.65 | 963.91 | 931.60 | 952.18 | 950.57 | 2.57% | 603,031 |
| Dec 1, 2025 | 908.72 | 937.69 | 894.39 | 928.35 | 926.78 | 0.02% | 544,978 |
| Nov 28, 2025 | 919.06 | 930.40 | 910.03 | 928.17 | 926.60 | 0.35% | 357,467 |
| Nov 26, 2025 | 920.19 | 931.78 | 914.34 | 924.95 | 923.39 | 1.80% | 603,712 |
| Nov 25, 2025 | 883.69 | 913.26 | 864.45 | 908.61 | 907.08 | 1.75% | 559,769 |
| Nov 24, 2025 | 887.69 | 903.63 | 881.89 | 892.97 | 891.46 | 2.36% | 1,145,218 |
| Nov 21, 2025 | 864.16 | 883.79 | 833.18 | 872.35 | 870.88 | 1.77% | 763,005 |
| Nov 20, 2025 | 908.62 | 917.44 | 852.69 | 857.19 | 855.74 | -3.10% | 1,053,094 |
| Nov 19, 2025 | 866.16 | 890.84 | 859.97 | 884.65 | 883.16 | 3.23% | 843,342 |
| Nov 18, 2025 | 887.22 | 894.51 | 852.04 | 856.96 | 855.51 | -4.46% | 878,728 |
| Nov 17, 2025 | 914.29 | 924.00 | 879.42 | 897.01 | 895.50 | -2.52% | 484,222 |
| Nov 14, 2025 | 879.11 | 938.54 | 866.38 | 920.19 | 918.64 | -0.44% | 486,195 |
| Nov 13, 2025 | 950.67 | 959.17 | 912.95 | 924.29 | 922.73 | -3.55% | 676,205 |
| Nov 12, 2025 | 973.99 | 980.95 | 957.00 | 958.35 | 956.73 | 0.38% | 543,923 |
| Nov 11, 2025 | 967.19 | 978.76 | 951.12 | 954.71 | 953.10 | -2.21% | 580,565 |
| Nov 10, 2025 | 986.65 | 989.72 | 947.87 | 976.31 | 974.66 | 1.88% | 608,506 |
| Nov 7, 2025 | 944.00 | 959.01 | 904.06 | 958.26 | 956.64 | 0.02% | 740,045 |
| Nov 6, 2025 | 995.15 | 1,006.00 | 954.09 | 958.07 | 956.45 | -4.21% | 676,976 |
| Nov 5, 2025 | 961.04 | 1,014.99 | 956.68 | 1,000.15 | 998.46 | 4.41% | 697,162 |
| Nov 4, 2025 | 966.12 | 976.91 | 953.09 | 957.87 | 956.25 | -4.59% | 866,121 |
| Nov 3, 2025 | 1,030.00 | 1,040.39 | 984.75 | 1,003.93 | 1,002.23 | -0.11% | 828,008 |
| Oct 31, 2025 | 1,020.16 | 1,038.33 | 935.93 | 1,005.00 | 1,003.30 | -7.59% | 1,646,492 |
| Oct 30, 2025 | 1,070.76 | 1,100.51 | 1,070.76 | 1,087.56 | 1,085.72 | -0.60% | 1,262,725 |
| Oct 29, 2025 | 1,095.97 | 1,123.38 | 1,090.50 | 1,094.08 | 1,092.23 | 0.71% | 817,568 |
| Oct 28, 2025 | 1,097.85 | 1,111.03 | 1,085.99 | 1,086.36 | 1,084.53 | -1.69% | 475,891 |
| Oct 27, 2025 | 1,097.28 | 1,112.06 | 1,093.70 | 1,105.05 | 1,103.18 | 2.80% | 555,034 |
| Oct 24, 2025 | 1,086.10 | 1,091.91 | 1,073.53 | 1,074.91 | 1,073.10 | 0.38% | 378,719 |
| Oct 23, 2025 | 1,045.00 | 1,076.00 | 1,038.60 | 1,070.80 | 1,068.99 | 6.93% | 727,570 |
| Oct 22, 2025 | 1,013.55 | 1,022.76 | 980.78 | 1,001.40 | 999.71 | -2.65% | 713,158 |
| Oct 21, 2025 | 1,027.32 | 1,035.70 | 1,012.35 | 1,028.67 | 1,026.93 | -0.28% | 255,137 |
| Oct 20, 2025 | 1,018.58 | 1,037.89 | 1,018.58 | 1,031.59 | 1,029.85 | 2.68% | 442,631 |
| Oct 17, 2025 | 1,002.90 | 1,024.34 | 994.86 | 1,004.65 | 1,002.95 | -2.16% | 502,945 |
| Oct 16, 2025 | 1,011.52 | 1,041.50 | 1,007.93 | 1,026.83 | 1,025.10 | 1.88% | 517,834 |
| Oct 15, 2025 | 1,000.00 | 1,016.96 | 987.31 | 1,007.93 | 1,006.23 | 4.10% | 632,176 |
| Oct 14, 2025 | 967.54 | 994.83 | 960.00 | 968.25 | 966.62 | -1.37% | 754,100 |
| Oct 13, 2025 | 967.60 | 990.67 | 953.66 | 981.67 | 980.01 | 8.54% | 774,368 |
| Oct 10, 2025 | 985.45 | 990.25 | 901.39 | 904.44 | 902.91 | -7.64% | 872,625 |
| Oct 9, 2025 | 973.83 | 980.10 | 961.94 | 979.25 | 977.60 | -0.17% | 361,405 |
| Oct 8, 2025 | 947.19 | 983.48 | 945.99 | 980.90 | 979.24 | 3.75% | 570,450 |
| Oct 7, 2025 | 969.70 | 972.74 | 940.88 | 945.49 | 943.89 | -2.34% | 423,286 |
| Oct 6, 2025 | 932.58 | 986.63 | 930.61 | 968.10 | 966.47 | 5.36% | 652,354 |