1,462.54 USD
↗ 15.14 (1.05%)AFTER HOURS (AS OF Thu 03:00 PM EST)
MPWR Stock After Hours
Monolithic Power Systems, Inc.
MPWRNASDAQ • USD
Market: OPEN
After-hours trading runs 4:00 PM – 8:00 PM ET.
MPWR last traded at $1462.54 after hours, up $15.14 (1.05%) from its regular-session close of $1447.40.
📅 MPWR is expected to report earnings around Feb 4, 2027 after the close (estimated), with an estimated EPS of $9.42. MPWR earnings details →
MPWR After Hours Chart
MPWR After Hours News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, MPWR has had 35 qualifying gap events (gaps of 5% or more at the open) — 23 gap-ups and 12 gap-downs. Gap-ups averaged +6.8%, 70% have fully filled, median time to fill 3 trading days. Gap-downs averaged -7.9%, 67% have fully filled, median time to fill 16 trading days. Most recent: a +5.5% gap up 2 days ago, still unfilled. MPWR has 2 unfilled gaps from the past 60 days; the largest is a +6.2% gap up on Nov 6, 2026, currently 69% retraced. Average 20-trading-day return after a MPWR gap up: +3.75%. After a gap down: +1.05%.
Gap Ups23 events
Fill Rate
69.6%
Avg Gap
6.8%
Avg 50% Fill
1.5d
Avg Fill
3d
Gap Downs12 events
Fill Rate
66.7%
Avg Gap
7.9%
Avg 50% Fill
8d
Avg Fill
16d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 61% | 70% | 78% | 87% |
| fills 50% | 43% | 61% | 70% | 83% |
| fills 75% | 17% | 52% | 57% | 65% |
| fills 100% | 9% | 43% | 43% | 57% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 50% | 92% | 92% | 92% |
| fills 50% | 17% | 42% | 67% | 75% |
| fills 75% | 17% | 33% | 33% | 58% |
| fills 100% | 0% | 17% | 25% | 42% |
Active Unfilled Gaps (past 60 days)
2 days ago
2026-11-11
Gap %
+5.48%
Gap From
$1357.60
% vs Current
-6.15%
retraced 57% to $1389.96
7 days ago
2026-11-06
Gap %
+6.18%
Gap From
$1131.43
% vs Current
-21.79%
retraced 69% to $1153.37
Complete Gap History — 35 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2 days ago | $1357.60 | +5.48% | Open | 1d | — | 56% | 56% | 56% | 56% |
| 7 days ago | $1131.43 | +6.18% | Open | 1d | — | 69% | 69% | 69% | 69% |
| 2026-07-31 | $1316.18 | +13.89% | Filled | 1d | 2d | 51% | 100% | 100% | 100% |
| 2026-07-14 | $1291.38 | +5.91% | Filled | 2d | 3d | 30% | 100% | 100% | 100% |
| 2026-07-09 | $1315.51 | +6.36% | Filled | 2d | 3d | 46% | 100% | 100% | 100% |
| 2026-07-07 | $1346.13 | -5.31% | Filled | 2d | 3d | 35% | 100% | 100% | 100% |
| 2026-06-26 | $1438.30 | -5.62% | Filled | 9d | 25d | 20% | 38% | 61% | 77% |
| 2026-06-23 | $1537.88 | -6.17% | Filled | 3d | 28d | 46% | 71% | 71% | 71% |
| 2026-06-18 | $1448.21 | +5.60% | Filled | 3d | 3d | 17% | 100% | 100% | 100% |
| 2026-06-08 | $1481.05 | +5.31% | Filled | 1d | 2d | 53% | 100% | 100% | 100% |
| 2026-04-08 | $1191.22 | +5.38% | Open | — | — | 5% | 5% | 5% | 5% |
| 2026-02-06 | $1155.99 | +8.13% | Filled | 1d | 3d | 86% | 100% | 100% | 100% |
| 2025-10-31 | $1087.56 | -6.20% | Filled | 54d | 55d | 27% | 30% | 30% | 30% |
| 2025-10-13 | $904.44 | +6.98% | Filled | 15d | 20d | 22% | 22% | 22% | 100% |
| 2025-05-12 | $637.77 | +8.81% | Open | 10d | — | 25% | 25% | 81% | 90% |
| 2025-04-23 | $511.82 | +6.66% | Open | — | — | 39% | 39% | 39% | 39% |
| 2025-04-14 | $533.13 | +5.18% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-04-10 | $561.84 | -6.38% | Filled | 3d | 10d | 13% | 97% | 100% | 100% |
| 2025-04-03 | $590.65 | -6.38% | Filled | 15d | 17d | 23% | 39% | 39% | 100% |
| 2024-11-11 | $761.30 | -17.34% | Open | 48d | — | 16% | 46% | 46% | 46% |
| 2024-10-31 | $919.81 | -10.16% | Open | — | — | 3% | 3% | 3% | 3% |
| 2024-08-05 | $795.76 | -5.97% | Filled | 1d | 2d | 95% | 100% | 100% | 100% |
| 2024-07-31 | $781.85 | +5.46% | Filled | 2d | 2d | 17% | 100% | 100% | 100% |
| 2024-02-08 | $645.41 | +5.36% | Filled | 28d | 28d | 2% | 2% | 2% | 2% |
| 2023-10-31 | $404.00 | +5.35% | Open | 1d | — | 77% | 77% | 77% | 77% |
| 2023-08-01 | $559.49 | -8.49% | Open | 1d | — | 91% | 91% | 91% | 91% |
| 2023-07-20 | $574.51 | -5.14% | Open | 8d | — | 17% | 46% | 64% | 64% |
| 2023-05-25 | $415.73 | +9.23% | Open | — | — | 19% | 19% | 19% | 19% |
| 2023-05-05 | $458.93 | -11.74% | Filled | 10d | 15d | 26% | 34% | 56% | 100% |
| 2023-02-09 | $463.00 | +5.76% | Filled | 9d | 33d | 0% | 14% | 56% | 64% |
| 2022-12-13 | $393.03 | +5.05% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2022-11-10 | $343.84 | +5.87% | Filled | 12d | 30d | 1% | 14% | 14% | 65% |
| 2022-08-02 | $462.30 | +6.93% | Filled | 19d | 20d | 40% | 40% | 40% | 100% |
| 2022-05-03 | $410.87 | +8.31% | Filled | 1d | 5d | 54% | 100% | 100% | 100% |
| 2022-02-11 | $407.29 | +8.20% | Filled | 1d | 16d | 60% | 89% | 89% | 100% |
Frequently Asked Questions
What is MPWR's after-hours price?
Monolithic Power Systems (MPWR) is trading at $1462.54 after hours, up $15.14 (1.05%) from its regular-session close of $1447.40.
Why is MPWR moving after hours?
MPWR is up 1.05% in after-hours trading. Moves in this session almost always follow something released after the 4:00 PM ET close — an earnings report, guidance, a filing, or news — and trade on far thinner volume than the regular session, so the size of the move can overstate what the market will settle on at the next open.
When does MPWR after-hours trading start and end?
After-hours trading in MPWR on the NASDAQ runs from 4:00 PM to 8:00 PM ET on trading days, immediately after the regular session closes. Not every broker offers the full window, and liquidity thins sharply after about 6:30 PM ET.
Will MPWR's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and MPWR's gap history is the best guide to what happens next: 70% of MPWR gap-ups have fully filled, and 67% of gap-downs have filled over the past 5 years. Fill rates this high mean a large after-hours move is more often faded than extended.
When does MPWR report earnings?
MPWR is expected to report earnings around Feb 4, 2027 after the close (estimated), with an estimated EPS of $9.42. Earnings are the most common cause of a large after-hours move, since most companies report after the close.