Monolithic Power Systems, Inc MPWR

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Monolithic Power Systems, Inc. - Common Stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 1333.8101 · FX 1 USD = 1.288650 SGD · about SGD 1718.8144 per unit

Sign in to place simulated trades. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 738.55 → 1333.81 · 80.6%
1689.8901200.565711.240 1 2 3 4 5 6 7 8 9,10 11,12,13 14 15 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 26 Jul 2025 — 27 Jul 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
Weekend
Weekend
1373.8101 1385.7400 1318.7200 1333.8101 805,300
1359.8101 1409.9900 1359.5900 1397.1500 702,900
1353.9301 1419.9200 1350.4900 1398.4500 607,200
1385.8199 1396.0000 1364.6200 1383.2600 986,400
1332.9600 1371.1600 1323.7500 1328.8000 784,800
Weekend
Weekend
1245.7900 1342.8101 1231.0000 1312.0000 1,054,900
1318.0300 1332.4399 1284.2100 1305.6500 933,500
1406.0400 1406.0400 1310.1200 1352.6600 754,000
1367.6801 1401.2900 1345.0100 1376.4100 786,000
1307.1700 1317.7900 1277.6400 1291.3800 827,000
Weekend
Weekend
1335.7600 1364.0300 1316.2100 1352.7400 577,500
1399.2000 1407.0900 1360.3300 1374.1300 886,300
1264.2300 1329.1600 1260.5699 1315.5100 703,200
1274.5900 1299.3000 1232.0400 1272.8101 1,209,700
1325.7400 1371.3700 1305.0100 1346.1300 857,400
Weekend
Weekend
No trading
1332.8500 1382.9200 1258.6600 1288.1600 1,214,500
1344.8900 1386.6000 1328.6700 1331.7300 1,515,600
1325.9100 1388.5300 1322.4000 1382.3600 1,708,700
1328.3900 1342.1300 1276.2200 1312.7700 1,050,900
Weekend
Weekend
1357.4500 1373.9100 1301.4399 1313.3199 3,481,700
1495.1801 1510.7600 1373.8199 1438.3000 1,002,100
1423.0200 1446.9600 1392.5000 1434.9500 865,600
1443.0400 1486.9200 1403.3600 1423.7600 1,636,600
1592.6899 1594.8101 1506.3700 1537.8800 1,108,900
Weekend
Weekend
No trading
1529.2400 1581.0400 1515.6200 1563.7000 1,935,600
1545.5601 1548.0000 1435.8300 1448.2100 1,111,900
1650.8800 1656.2200 1496.5200 1498.7700 1,039,700
1652.5601 1666.6400 1605.0100 1652.2900 761,200
Weekend
Weekend
15 · 8-K After-hours · 16:01 ET 8-K ↗
1592.2100 1598.4200 1558.1899 1577.3199 567,500
1523.4399 1593.7700 1506.8199 1589.5500 896,700
1510.7600 1563.3700 1468.5000 1473.0400 737,300
1597.5100 1627.6400 1405.0000 1531.9800 985,900
1559.6700 1584.3600 1518.3400 1559.1801 870,700
Weekend
Weekend
1591.2500 1599.9900 1473.9500 1481.0500 1,369,000
1630.0400 1666.6899 1591.6400 1652.6000 679,000
1647.5100 1697.3500 1617.8300 1689.8900 443,700
1572.0000 1627.8500 1558.1100 1624.9900 692,900
1536.0800 1569.9900 1508.2400 1542.3900 593,200
Weekend
Weekend
1645.0000 1657.0000 1556.7700 1566.2100 1,164,100
1616.9301 1656.7800 1575.0000 1633.1700 501,000
1707.6200 1707.6200 1592.7600 1620.1700 858,600
1650.4900 1714.0900 1622.1000 1662.9800 821,400
No trading
Weekend
Weekend
1579.6200 1596.7500 1560.0000 1589.8101 476,600
1535.8000 1562.4900 1516.0100 1561.2500 449,800
1492.3700 1555.5500 1481.0699 1553.2700 753,100
1434.9100 1493.1400 1412.8900 1468.1100 639,400
1563.2800 1579.9900 1458.4399 1486.3300 806,900
Weekend
Weekend
1562.5500 1587.7400 1548.6100 1550.0200 685,000
1639.8500 1644.9000 1601.0000 1613.9700 373,600
1631.2000 1675.4200 1614.0000 1650.3500 626,900
1619.5400 1622.0100 1538.2500 1599.5200 731,800
1594.4900 1663.9900 1585.0000 1661.1000 526,600
Weekend
Weekend
1608.6400 1617.0500 1581.9399 1600.8400 686,600
1636.3300 1636.3300 1559.0000 1575.9600 600,100
1581.0000 1662.0000 1556.3101 1652.3500 854,100
1588.9399 1607.8700 1557.0500 1588.1200 682,200
14 · 10-Q After-hours · 16:01 ET FORM 10-Q ↗
1590.4700 1603.7000 1552.8400 1573.3000 515,400
Weekend
Weekend
1564.5601 1589.7100 1521.0000 1583.4800 898,700
13 · 8-K After-hours · 16:01 ET FORM 8-K ↗ 12 · DEFA14A After market open · 12:46 ET FORM DEFA14A ↗ 11 · DEF 14A After market open · 12:34 ET FORM DEF 14A ↗
1550.0000 1621.9100 1541.6100 1614.4100 1,077,600
1550.9600 1554.4100 1507.3400 1526.8400 690,200
1527.3199 1537.7400 1488.0300 1504.0800 637,600
1610.4301 1621.0300 1550.9200 1587.5699 608,100
Weekend
Weekend
1626.3300 1661.7900 1595.9000 1632.0601 692,300
1550.4000 1597.7600 1533.0000 1592.1700 638,700
1545.0601 1560.0900 1519.2100 1522.0400 538,600
1502.2600 1548.1700 1499.6000 1527.9500 551,900
1471.4500 1492.7500 1453.6700 1490.8600 384,500
Weekend
Weekend
1437.6200 1479.2300 1420.3400 1468.3500 635,600
1365.6200 1405.1400 1353.5500 1402.8101 467,900
1345.7200 1362.2500 1329.4600 1353.0000 466,100
1372.4900 1378.5500 1349.0100 1363.4200 557,500
1336.4100 1377.2500 1332.0400 1372.2300 393,500
Weekend
Weekend
1339.0100 1370.0000 1339.0100 1353.8500 522,400
1312.9399 1340.1100 1303.9399 1334.2100 554,800
1255.2600 1322.6200 1251.9800 1312.9399 1,012,900
1179.2100 1194.7300 1153.1700 1191.2200 438,900
1128.3500 1182.5699 1128.0300 1180.0300 499,400
Weekend
Weekend
No trading
1071.8900 1125.7300 1071.8900 1118.4900 344,000
1100.7500 1138.4200 1095.0100 1119.5100 668,200
1008.3800 1096.1600 1008.3800 1093.3500 815,400
1057.9100 1057.9100 996.0100 1002.3400 590,200
Weekend
Weekend
1049.2600 1073.3600 1039.0400 1053.0100 537,300
1101.4800 1112.4399 1057.0200 1058.2800 547,000
1116.3199 1127.7400 1101.8600 1118.6600 308,700
1068.7500 1109.9900 1060.0000 1101.5900 429,500
1100.0000 1108.8800 1074.8500 1076.3500 472,800
Weekend
Weekend
1094.4399 1103.2700 1050.9000 1068.8500 1,035,300
1041.4600 1104.1000 1033.9399 1092.6899 364,800
1080.5800 1094.5000 1070.6100 1075.2900 581,500
1069.8500 1085.0000 1060.0100 1066.6600 336,300
1078.8400 1097.0699 1073.7700 1077.4000 484,200
Weekend
Weekend
1054.1700 1083.9301 1042.8500 1052.5900 406,100
1045.9399 1049.4301 1021.7800 1033.8800 485,600
1059.0601 1078.2900 1053.8199 1071.0900 332,400
1051.7800 1091.3800 1040.0000 1055.8199 448,000
1013.0500 1066.0200 988.0000 1062.0000 913,300
Weekend
Weekend
1039.3700 1062.4100 1012.4600 1023.1600 756,900
1071.4900 1093.0601 1051.7900 1078.4399 588,100
1082.6400 1102.2000 1080.0000 1099.0200 433,700
1108.3300 1130.1801 1068.8101 1074.3700 820,500
1108.0800 1144.6000 1102.4600 1142.5800 540,200
Weekend
Weekend
10 · 10-K After-hours · 16:33 ET FORM 10-K ↗ 9 · 8-K After-hours · 16:31 ET FORM 8-K ↗
1156.0699 1163.3800 1128.6000 1142.7400 805,300
1237.2000 1239.7000 1152.7800 1180.1300 644,500
1226.8101 1256.2200 1220.2400 1231.9500 435,400
1200.0100 1240.2500 1161.8101 1213.6700 610,500
1204.4399 1220.0000 1171.4200 1190.0601 463,200
Weekend
Weekend
1160.3101 1205.7500 1160.3101 1204.1000 375,900
1170.2800 1175.6200 1152.8500 1175.2200 301,900
1177.7300 1202.9200 1172.3500 1188.3199 357,100
1150.1500 1191.3500 1139.6300 1173.1801 446,700
No trading
Weekend
Weekend
1149.0601 1173.3800 1136.0900 1171.4700 434,200
1206.2500 1225.1700 1151.2300 1155.9301 726,100
1165.0000 1204.0000 1154.4000 1196.7300 768,900
1197.2600 1197.2600 1127.3400 1142.0200 779,600
1216.0000 1240.9000 1180.2200 1206.1801 660,900
Weekend
Weekend
1250.0000 1250.0000 1169.6200 1229.8199 1,556,700
8 · 8-K After-hours · 16:01 ET FORM 8-K ↗
1125.6000 1179.0000 1100.0000 1155.9900 820,400
1167.5000 1226.3000 1109.0000 1136.8300 1,263,300
1185.0100 1199.7600 1142.7100 1164.8300 840,300
1110.6801 1182.4100 1100.0000 1173.2200 729,300
Weekend
Weekend
1153.7300 1188.6600 1113.8400 1124.1500 1,046,100
1165.9301 1185.0500 1120.9900 1183.1500 642,900
1110.4800 1171.5699 1109.5000 1161.7800 667,700
1094.1400 1110.1801 1088.0100 1095.4900 578,700
1062.2600 1077.2500 1051.9600 1068.1400 683,700
Weekend
Weekend
1077.6100 1087.4399 1050.8800 1063.7400 402,500
1092.6400 1098.9301 1071.9399 1076.6700 409,400
1046.8400 1087.8101 1043.8900 1074.9301 601,200
1009.5100 1055.0000 1008.5000 1034.4900 661,900
No trading
Weekend
Weekend
1030.0000 1047.9900 1019.4900 1033.1700 547,700
1014.0600 1041.9500 1008.0500 1009.5400 537,200
980.5500 998.6500 964.1100 983.6000 420,900
976.5400 1004.7400 970.7400 983.2800 341,900
946.4600 970.9900 944.0000 967.1600 350,200
Weekend
Weekend
965.0000 975.6300 950.4100 958.9700 529,500
947.6700 960.3700 941.1000 959.0900 457,300
990.2800 998.5900 936.7400 959.0800 727,100
969.7900 1009.5900 967.3600 1005.3800 658,900
946.1600 966.0600 938.2400 955.0300 649,100
Weekend
Weekend
927.6100 957.1000 926.1800 936.3100 618,800
No trading
926.3600 928.0700 906.3300 906.3600 381,900
929.3900 935.1600 923.1200 923.9100 287,900
938.0000 949.2900 928.9000 930.0400 446,300
Weekend
Weekend
960.4400 960.4400 944.6200 946.3200 221,600
No trading
954.7500 958.0800 947.0500 953.2500 191,700
939.8800 946.5100 935.8300 943.5500 355,300
976.0500 976.0500 937.1000 945.1600 569,200
Weekend
Weekend
941.8900 966.3300 937.1100 937.1100 5,577,200
936.4100 951.6300 922.8800 929.4800 731,400
959.6100 966.1400 909.0000 912.2500 855,800
947.8100 968.8400 942.0000 951.3600 577,000
960.8000 975.0000 946.4500 949.4000 690,800
Weekend
Weekend
7 · 8-K After-hours · 16:01 ET FORM 8-K ↗
980.0000 988.1000 941.3700 946.5100 781,600
967.6200 987.5900 950.5500 981.4800 590,900
968.5400 989.2500 962.9500 979.0200 446,700
978.5400 988.0500 957.3900 962.9500 440,200
976.0300 1002.5000 974.4600 983.5800 444,800
Weekend
Weekend
964.2500 971.1200 954.3900 963.2800 348,100
950.1000 959.3800 931.9800 952.7400 478,800
954.3100 962.2200 933.8200 958.0200 464,100
938.6500 963.9100 931.6000 952.1800 603,000
908.7200 937.6900 894.3900 928.3500 545,000
Weekend
Weekend
919.0600 930.4000 910.0300 928.1700 357,500
No trading
920.1900 931.7800 914.3400 924.9500 603,700
883.6900 913.2600 864.4500 908.6100 559,700
887.6900 903.6300 881.8900 892.9700 1,145,200
Weekend
Weekend
6 · 8-K After-hours · 16:00 ET FORM 8-K ↗
864.1600 883.7900 833.1800 872.3500 763,000
908.6200 917.4400 852.6900 857.1900 1,053,100
866.1600 890.8400 859.9700 884.6500 843,200
887.2200 894.5100 852.0400 856.9600 878,600
914.2900 924.0000 879.4200 897.0100 483,900
Weekend
Weekend
879.1100 938.5400 866.3800 920.1900 486,200
950.6700 959.1700 912.9500 924.2900 675,800
973.9900 980.9500 957.0000 958.3500 543,900
967.1900 978.7600 951.1200 954.7100 580,500
986.6500 989.7200 947.8700 976.3100 608,300
Weekend
Weekend
944.0000 959.0100 904.0600 958.2600 739,900
995.1500 1006.0000 954.0900 958.0700 676,700
5 · 10-Q After-hours · 16:02 ET FORM 10-Q ↗
961.0400 1014.9900 956.6800 1000.1500 697,100
966.1200 976.9100 953.0900 957.8700 866,100
1030.0000 1040.3900 984.7500 1003.9300 828,000
Weekend
Weekend
1020.1600 1038.3300 935.9300 1005.0000 1,646,500
4 · 8-K After-hours · 16:01 ET FORM 8-K ↗
1070.7600 1100.5100 1070.7600 1087.5601 1,262,700
1095.9700 1123.3800 1090.5000 1094.0800 817,300
1097.8500 1111.0300 1085.9900 1086.3600 475,700
1097.2800 1112.0601 1093.7000 1105.0500 555,000
Weekend
Weekend
1086.1000 1091.9100 1073.5300 1074.9100 378,600
1045.0000 1076.0000 1038.6000 1070.8000 727,500
1013.5500 1022.7600 980.7800 1001.4000 713,000
1027.3199 1035.7000 1012.3500 1028.6700 255,000
1018.5800 1037.8900 1018.5800 1031.5900 442,600
Weekend
Weekend
1002.9000 1024.3400 994.8600 1004.6500 502,800
1011.5200 1041.5000 1007.9300 1026.8300 517,700
1000.0000 1016.9600 987.3100 1007.9300 631,900
967.5400 994.8300 960.0000 968.2500 754,100
967.6000 990.6700 953.6600 981.6700 774,000
Weekend
Weekend
985.4500 990.2500 901.3900 904.4400 872,600
973.8300 980.1000 961.9400 979.2500 361,400
947.1900 983.4800 945.9900 980.9000 570,100
969.7000 972.7400 940.8800 945.4900 423,000
932.5800 986.6300 930.6100 968.1000 652,000
Weekend
Weekend
940.4400 954.8100 916.8000 918.8300 420,400
927.2500 940.1100 925.0500 930.5100 389,300
907.3700 923.3400 894.8900 915.8700 444,000
898.1600 929.5000 894.3800 920.6400 505,700
908.5200 915.6500 885.9200 886.5900 333,100
Weekend
Weekend
888.5500 892.5400 877.0000 887.5500 304,300
897.6500 898.1900 872.2900 891.3900 336,500
920.3300 920.3300 899.9000 908.4500 349,400
917.6400 932.2500 907.0200 914.2700 425,500
920.4000 938.0400 917.7900 922.8100 416,300
Weekend
Weekend
923.3700 923.3700 893.0700 916.3600 1,232,000
895.3500 924.4000 890.0900 917.7800 853,300
856.4200 884.4600 850.0000 877.6600 408,400
847.5700 860.2000 844.6300 857.0200 401,200
838.0000 852.5400 831.0000 849.7100 393,100
Weekend
Weekend
844.9600 844.9600 830.0000 834.1400 329,700
3 · 8-K After-hours · 16:01 ET FORM 8-K ↗
855.1600 860.6000 830.3700 840.3800 576,000
868.8800 869.7000 846.0000 855.1800 751,800
865.7100 869.3200 848.1300 857.8700 281,900
869.3100 879.5000 850.6600 864.3200 495,400
Weekend
Weekend
853.6500 867.2200 846.3400 865.8600 491,500
827.5600 850.1400 817.5700 848.1100 424,500
830.2600 830.2600 809.5400 827.5600 432,600
811.1100 824.9700 800.9700 823.6500 517,400
No trading
Weekend
Weekend
849.4100 853.4900 825.1600 835.7600 568,900
866.9800 875.0500 857.4000 858.4600 468,100
847.9000 870.0000 843.5300 866.3200 326,600
839.8600 857.9900 839.8600 850.6400 404,000
841.4100 850.4400 832.2000 837.8600 348,000
Weekend
Weekend
822.2400 859.7900 820.6400 844.0000 548,800
814.2200 831.3100 812.0000 820.7400 413,000
840.8300 847.5700 805.9400 826.2700 673,100
854.4000 868.0000 839.9600 844.8000 557,900
823.5900 853.2400 823.0100 850.3100 563,800
Weekend
Weekend
851.9200 851.9200 823.8500 826.4700 575,600
845.5300 854.9900 836.5100 848.8100 582,300
845.6000 865.1300 840.0000 861.8000 543,900
807.8000 844.0000 803.0000 840.5600 713,900
806.2300 815.4000 795.8200 797.5100 540,400
Weekend
Weekend
798.5200 815.0000 794.5000 804.2900 399,400
816.3000 819.5000 785.0000 797.9400 640,200
802.0000 807.4000 790.0700 805.8500 416,400
830.0000 834.4400 774.1400 802.7800 988,800
2 · 10-Q After-hours · 16:01 ET FORM 10-Q ↗
791.4200 831.9700 778.9000 830.6300 1,360,400
Weekend
Weekend
740.0000 803.0000 711.4600 785.6200 1,524,100
1 · 8-K After-hours · 16:01 ET FORM 8-K ↗
731.2400 740.0000 706.0000 711.2400 1,344,500
734.4600 747.5000 726.0500 730.5400 629,600
745.5200 751.4900 715.0000 724.3700 488,700
722.5600 741.0700 721.7200 738.5500 545,500
Weekend
Weekend

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

15 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
14 10-Q FORM 10-Q (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
13 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
12 DEFA14A FORM DEFA14A (opens SEC filing in a new tab) After market open · 12:46 ET Summarise
11 DEF 14A FORM DEF 14A (opens SEC filing in a new tab) After market open · 12:34 ET Summarise
10 10-K FORM 10-K (opens SEC filing in a new tab) After-hours · 16:33 ET Summarise
9 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
8 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
7 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
6 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:00 ET Summarise
5 10-Q FORM 10-Q (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
4 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
3 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
2 10-Q FORM 10-Q (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
1 8-K FORM 8-K (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise