Monolithic Power Systems, Inc MPWR

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

Paper trade (simulated — no real money)

Fill: USD 1140.1200 · FX 1 USD = 1.277900 SGD · about SGD 1456.9593 per unit

Sign in to practise with simulated trades before investing real money. 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 1074.91 → 1140.12 · 6.1%
1689.8901273.425856.960 1 2 3 4 5 6,7 8,9,10 11 12 13 14 15 Oct 25Jan 26Apr 26Jul 26Oct 26

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

Price & SEC Filing History 24 Oct 2025 — 25 Oct 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.

Weekend
Weekend
1156.3900 1169.0601 1126.5680 1140.1200 668,579
1227.1801 1230.4200 1147.1700 1167.9301 1,479,300
1265.5800 1288.2700 1259.8700 1283.3199 610,500
1232.8500 1284.8700 1222.2900 1248.7400 509,200
1255.4100 1283.5900 1236.2600 1253.6600 862,100
Weekend
Weekend
1223.3199 1249.0000 1207.2000 1210.8600 834,200
1198.1500 1260.2400 1195.0000 1249.2000 991,300
1295.0000 1300.7600 1234.3600 1243.1100 1,121,600
1294.2900 1322.4000 1283.8101 1319.5500 730,800
1365.3600 1365.3600 1314.5200 1319.2300 869,800
Weekend
Weekend
1396.5300 1401.7600 1351.2600 1386.2900 433,700
1405.9900 1416.6200 1349.3900 1369.8000 848,100
1447.6400 1450.7100 1412.6801 1425.9800 481,700
1487.8800 1491.6400 1458.7900 1473.6899 374,700
1444.4100 1482.9700 1432.3800 1479.8900 685,400
Weekend
Weekend
1406.0000 1455.9900 1393.1300 1439.7300 705,300
1359.9800 1368.6700 1331.0000 1360.9700 492,300
1353.7700 1361.4399 1324.9600 1347.2200 465,200
1372.0500 1374.3199 1347.8500 1355.9900 450,000
1353.1300 1359.7600 1320.8000 1351.2000 659,400
Weekend
Weekend
1332.6300 1377.1400 1329.4700 1367.4301 536,600
1317.0900 1349.6400 1313.0900 1335.5500 492,500
1367.0800 1371.6600 1302.1000 1355.4700 767,000
1278.0800 1387.4600 1271.0300 1380.6200 1,534,800
1243.2500 1283.8300 1217.2400 1277.6801 1,029,700
Weekend
Weekend
1185.5200 1221.5100 1176.2100 1217.8000 1,426,900
1183.1500 1184.1500 1146.4000 1169.5800 950,100
1157.4200 1176.0500 1133.8300 1147.6100 624,900
1164.9700 1171.1801 1136.6500 1142.4600 557,000
1184.4301 1185.8900 1141.3800 1143.2400 984,400
Weekend
Weekend
1200.8000 1241.0400 1194.4700 1234.4600 555,000
15 · 8-K After-hours · 16:01 ET 8-K ↗
1184.8500 1205.2000 1175.9500 1186.0800 625,200
1206.7000 1228.8199 1198.1700 1203.7500 508,400
1230.6400 1243.0900 1211.2200 1218.5000 763,400
No trading
Weekend
Weekend
1239.1300 1239.1300 1206.5500 1223.8600 625,900
1200.7000 1225.0000 1189.4900 1213.6500 413,600
1224.9200 1245.2300 1211.7400 1219.3600 405,200
1245.1100 1250.0000 1211.8600 1225.9600 757,900
1261.9000 1279.0000 1253.0000 1267.7700 689,000
Weekend
Weekend
1306.0300 1306.0300 1254.0100 1256.2600 706,200
1319.7500 1332.0000 1290.8600 1311.0800 459,000
1301.0400 1311.0200 1284.5601 1303.8800 254,500
1310.0601 1322.9900 1291.5400 1304.1500 359,500
1298.3800 1305.6400 1255.5601 1285.0300 897,600
Weekend
Weekend
1321.1300 1337.7000 1297.3000 1316.2800 529,600
1311.3400 1327.0000 1295.0200 1310.6000 437,100
1321.1200 1335.1899 1267.7700 1300.1400 710,800
1365.4500 1376.5300 1303.2200 1333.1801 1,144,300
1418.0100 1448.7600 1411.6000 1415.9900 542,800
Weekend
Weekend
1360.0000 1404.1400 1355.1100 1402.0100 440,300
1421.4399 1438.3800 1358.0000 1362.5500 506,200
1451.1801 1464.9900 1423.1000 1425.0100 623,100
1413.7800 1431.6300 1383.6300 1402.1100 413,700
1428.2200 1430.0000 1379.1700 1381.1000 493,600
Weekend
Weekend
1385.9700 1417.0900 1370.9500 1401.5400 605,700
1313.2500 1415.3700 1305.1300 1359.0800 629,500
14 · 10-Q After-hours · 16:01 ET 10-Q ↗
1320.0100 1358.6100 1308.4600 1345.4600 705,000
1402.1000 1425.9900 1333.3199 1335.0300 1,228,400
1417.7800 1421.6100 1305.0100 1344.3700 1,215,200
Weekend
Weekend
1499.0000 1568.2100 1405.9600 1426.0300 1,545,700
13 · 8-K After-hours · 16:01 ET 8-K ↗
1290.9700 1339.9900 1290.6300 1316.1801 1,720,100
1263.2700 1327.3101 1240.0200 1248.7600 1,181,900
1283.7700 1313.7400 1253.7000 1282.0100 1,007,000
1340.0000 1364.8500 1284.8199 1339.0800 848,700
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
12 · 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
11 · 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
10 · 8-K After-hours · 16:01 ET FORM 8-K ↗ 9 · DEFA14A After market open · 12:46 ET FORM DEFA14A ↗ 8 · 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
7 · 10-K After-hours · 16:33 ET FORM 10-K ↗ 6 · 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
5 · 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
4 · 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
3 · 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
2 · 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
1 · 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

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