Monolithic Power Systems, Inc. (MPWR)
NASDAQ: MPWR · Real-Time Price · USD
1,478.69
+121.09 (8.92%)
At close: Nov 11, 2026, 4:00 PM EST
1,441.00
-37.69 (-2.55%)
After-hours: Nov 11, 2026, 7:56 PM EST
Monolithic Power Systems Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Nov 11, 2026 | 1,432.00 | 1,513.49 | 1,390.00 | 1,478.69 | 1,478.69 | 8.92% | 1,071,669 |
| Nov 10, 2026 | 1,365.50 | 1,387.87 | 1,290.00 | 1,357.60 | 1,357.60 | -2.19% | 1,077,009 |
| Nov 9, 2026 | 1,205.51 | 1,396.55 | 1,205.51 | 1,388.05 | 1,388.05 | 16.60% | 1,668,566 |
| Nov 6, 2026 | 1,201.30 | 1,217.24 | 1,153.34 | 1,190.44 | 1,190.44 | 5.22% | 1,202,130 |
| Nov 5, 2026 | 1,202.84 | 1,218.27 | 1,125.00 | 1,131.43 | 1,131.43 | -10.28% | 2,631,365 |
| Nov 4, 2026 | 1,335.10 | 1,337.91 | 1,213.50 | 1,261.08 | 1,261.08 | -5.06% | 1,233,477 |
| Nov 3, 2026 | 1,303.15 | 1,363.36 | 1,275.75 | 1,328.30 | 1,328.30 | 6.78% | 1,311,562 |
| Nov 2, 2026 | 1,231.18 | 1,309.44 | 1,230.82 | 1,243.95 | 1,243.95 | 2.67% | 1,271,226 |
| Oct 30, 2026 | 1,174.00 | 1,263.05 | 1,171.02 | 1,211.63 | 1,211.63 | 1.07% | 2,133,828 |
| Oct 29, 2026 | 1,199.16 | 1,209.86 | 1,163.86 | 1,198.81 | 1,198.81 | -1.02% | 789,853 |
| Oct 28, 2026 | 1,224.14 | 1,224.14 | 1,188.93 | 1,211.22 | 1,211.22 | -0.06% | 650,219 |
| Oct 27, 2026 | 1,183.43 | 1,220.77 | 1,173.95 | 1,211.89 | 1,211.89 | 3.82% | 813,379 |
| Oct 26, 2026 | 1,141.84 | 1,178.38 | 1,135.18 | 1,167.27 | 1,167.27 | 2.38% | 921,173 |
| Oct 23, 2026 | 1,156.39 | 1,169.06 | 1,126.57 | 1,140.12 | 1,140.12 | -2.38% | 669,685 |
| Oct 22, 2026 | 1,227.18 | 1,230.42 | 1,147.17 | 1,167.93 | 1,167.93 | -8.99% | 1,480,295 |
| Oct 21, 2026 | 1,265.58 | 1,288.27 | 1,259.87 | 1,283.32 | 1,283.32 | 2.77% | 610,891 |
| Oct 20, 2026 | 1,232.85 | 1,284.87 | 1,222.29 | 1,248.74 | 1,248.74 | -0.39% | 509,751 |
| Oct 19, 2026 | 1,255.41 | 1,283.59 | 1,236.26 | 1,253.66 | 1,253.66 | 3.53% | 862,339 |
| Oct 16, 2026 | 1,223.32 | 1,249.00 | 1,207.20 | 1,210.86 | 1,210.86 | -3.07% | 835,005 |
| Oct 15, 2026 | 1,198.15 | 1,260.24 | 1,195.00 | 1,249.20 | 1,249.20 | 0.49% | 991,558 |
| Oct 14, 2026 | 1,295.00 | 1,300.76 | 1,234.36 | 1,243.11 | 1,243.11 | -5.79% | 1,122,509 |
| Oct 13, 2026 | 1,294.29 | 1,322.40 | 1,283.81 | 1,319.55 | 1,319.55 | 0.02% | 731,793 |
| Oct 12, 2026 | 1,365.36 | 1,365.36 | 1,314.52 | 1,319.23 | 1,319.23 | -4.84% | 870,267 |
| Oct 9, 2026 | 1,396.53 | 1,401.76 | 1,351.26 | 1,386.29 | 1,386.29 | 1.20% | 433,752 |
| Oct 8, 2026 | 1,405.99 | 1,416.62 | 1,349.39 | 1,369.80 | 1,369.80 | -3.94% | 848,188 |
| Oct 7, 2026 | 1,447.64 | 1,450.71 | 1,412.68 | 1,425.98 | 1,425.98 | -3.24% | 481,964 |
| Oct 6, 2026 | 1,487.88 | 1,491.64 | 1,458.79 | 1,473.69 | 1,473.69 | -0.42% | 375,083 |
| Oct 5, 2026 | 1,444.41 | 1,482.97 | 1,432.38 | 1,479.89 | 1,479.89 | 2.79% | 685,457 |
| Oct 2, 2026 | 1,406.00 | 1,455.99 | 1,393.13 | 1,439.73 | 1,439.73 | 5.79% | 705,805 |
| Oct 1, 2026 | 1,359.98 | 1,368.67 | 1,331.00 | 1,360.97 | 1,360.97 | 1.02% | 492,345 |
| Sep 30, 2026 | 1,353.77 | 1,361.44 | 1,324.96 | 1,347.22 | 1,347.22 | -0.50% | 465,261 |
| Sep 29, 2026 | 1,372.05 | 1,374.32 | 1,347.85 | 1,355.99 | 1,353.99 | 0.35% | 450,392 |
| Sep 28, 2026 | 1,353.13 | 1,359.76 | 1,320.80 | 1,351.20 | 1,349.21 | -1.19% | 660,021 |
| Sep 25, 2026 | 1,332.63 | 1,377.14 | 1,329.47 | 1,367.43 | 1,365.41 | 2.39% | 536,878 |
| Sep 24, 2026 | 1,317.09 | 1,349.64 | 1,313.09 | 1,335.55 | 1,333.58 | -1.47% | 492,628 |
| Sep 23, 2026 | 1,367.08 | 1,371.66 | 1,302.10 | 1,355.47 | 1,353.47 | -1.82% | 767,407 |
| Sep 22, 2026 | 1,278.08 | 1,387.46 | 1,271.03 | 1,380.62 | 1,378.58 | 8.06% | 1,535,211 |
| Sep 21, 2026 | 1,243.25 | 1,283.83 | 1,217.24 | 1,277.68 | 1,275.80 | 4.92% | 1,030,120 |
| Sep 18, 2026 | 1,185.52 | 1,221.51 | 1,176.21 | 1,217.80 | 1,216.00 | 4.12% | 1,427,382 |
| Sep 17, 2026 | 1,183.15 | 1,184.15 | 1,146.40 | 1,169.58 | 1,167.85 | 1.91% | 950,234 |
| Sep 16, 2026 | 1,157.42 | 1,176.05 | 1,133.83 | 1,147.61 | 1,145.92 | 0.45% | 625,211 |
| Sep 15, 2026 | 1,164.97 | 1,171.18 | 1,136.65 | 1,142.46 | 1,140.77 | -0.07% | 557,090 |
| Sep 14, 2026 | 1,184.43 | 1,185.89 | 1,141.38 | 1,143.24 | 1,141.55 | -7.39% | 984,700 |
| Sep 11, 2026 | 1,200.80 | 1,241.04 | 1,194.47 | 1,234.46 | 1,232.64 | 4.08% | 555,184 |
| Sep 10, 2026 | 1,184.85 | 1,205.20 | 1,175.95 | 1,186.08 | 1,184.33 | -1.47% | 625,369 |
| Sep 9, 2026 | 1,206.70 | 1,228.82 | 1,198.17 | 1,203.75 | 1,201.97 | -1.21% | 508,493 |
| Sep 8, 2026 | 1,230.64 | 1,243.09 | 1,211.22 | 1,218.50 | 1,216.70 | -0.44% | 763,467 |
| Sep 4, 2026 | 1,239.13 | 1,239.13 | 1,206.55 | 1,223.86 | 1,222.05 | 0.84% | 625,898 |
| Sep 3, 2026 | 1,200.70 | 1,225.00 | 1,189.49 | 1,213.65 | 1,211.86 | -0.47% | 413,703 |
| Sep 2, 2026 | 1,224.92 | 1,245.23 | 1,211.74 | 1,219.36 | 1,217.56 | -0.54% | 405,205 |