51.65 USD
↗ 0.14 (0.27%)AFTER HOURS (AS OF Fri 08:13 PM EDT)
STM Stock After Hours
STMicroelectronics N.V.
STMNYSE • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
STM last traded at $51.65 after hours, up $0.14 (0.27%) from its regular-session close of $51.51.
📅 STM is expected to report earnings around Oct 29, 2026 before the open (estimated), with an estimated EPS of $0.40. STM earnings details →
STM After Hours Chart
STM After Hours News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, STM has had 53 qualifying gap events (gaps of 5% or more at the open) — 27 gap-ups and 26 gap-downs. Gap-ups averaged +6.3%, 56% have fully filled, median time to fill 5 trading days. Gap-downs averaged -7.6%, 85% have fully filled, median time to fill 7 trading days. Most recent: a +7.2% gap up on Jul 30, 2026, still unfilled. STM has 2 unfilled gaps from the past 60 days; the largest is a -17.3% gap down on Jul 23, 2026, currently 23% retraced. Average 20-trading-day return after a STM gap up: +4.96%. After a gap down: +8.34%.
Gap Ups27 events
Fill Rate
55.6%
Avg Gap
6.3%
Avg 50% Fill
4d
Avg Fill
5d
Gap Downs26 events
Fill Rate
84.6%
Avg Gap
7.6%
Avg 50% Fill
3d
Avg Fill
7d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 56% | 78% | 78% | 85% |
| fills 50% | 15% | 59% | 63% | 70% |
| fills 75% | 11% | 56% | 59% | 63% |
| fills 100% | 11% | 41% | 41% | 44% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 62% | 81% | 85% | 85% |
| fills 50% | 27% | 62% | 73% | 77% |
| fills 75% | 15% | 54% | 65% | 73% |
| fills 100% | 4% | 42% | 65% | 69% |
Active Unfilled Gaps (past 60 days)
45 days ago
2026-07-30
Gap %
+7.18%
Gap From
$48.36
% vs Current
-6.12%
retraced 97% to $48.47
52 days ago
2026-07-23
Gap %
-17.29%
Gap From
$65.77
% vs Current
+27.68%
retraced 23% to $57.04
Complete Gap History — 53 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-07-30 | $48.36 | +7.18% | Open | 16d | — | 12% | 33% | 33% | 83% |
| 2026-07-28 | $53.45 | -5.69% | Filled | 3d | 4d | 31% | 100% | 100% | 100% |
| 2026-07-23 | $65.77 | -17.29% | Open | — | — | 20% | 20% | 20% | 23% |
| 2026-07-21 | $61.78 | +5.75% | Filled | 3d | 3d | 35% | 100% | 100% | 100% |
| 2026-07-07 | $71.39 | -5.60% | Filled | 3d | 3d | 33% | 100% | 100% | 100% |
| 2026-06-25 | $71.84 | +5.47% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-06-23 | $79.91 | -9.90% | Open | — | — | 26% | 49% | 49% | 49% |
| 2026-06-08 | $70.72 | +5.68% | Filled | 2d | 2d | 13% | 100% | 100% | 100% |
| 2026-06-05 | $78.36 | -5.97% | Filled | 2d | 6d | 17% | 100% | 100% | 100% |
| 2026-06-04 | $79.71 | -5.91% | Filled | 1d | 8d | 77% | 77% | 100% | 100% |
| 2026-06-02 | $69.02 | +10.65% | Filled | 4d | 6d | 10% | 100% | 100% | 100% |
| 2026-05-15 | $64.38 | -5.84% | Filled | 2d | 4d | 42% | 100% | 100% | 100% |
| 2026-05-13 | $57.93 | +5.71% | Filled | 5d | 49d | 27% | 65% | 65% | 65% |
| 2026-04-23 | $44.86 | +7.29% | Open | — | — | 1% | 1% | 1% | 1% |
| 2026-04-08 | $35.68 | +6.63% | Open | — | — | 33% | 33% | 33% | 33% |
| 2026-04-02 | $34.52 | -5.16% | Filled | 1d | 2d | 93% | 100% | 100% | 100% |
| 2026-03-19 | $33.23 | -5.22% | Filled | 1d | 5d | 73% | 100% | 100% | 100% |
| 2026-03-06 | $33.31 | -5.24% | Filled | 2d | 2d | 18% | 100% | 100% | 100% |
| 2026-03-03 | $33.48 | -6.87% | Filled | 2d | 3d | 32% | 100% | 100% | 100% |
| 2026-02-09 | $29.85 | +7.20% | Open | 16d | — | 2% | 2% | 2% | 62% |
| 2026-01-29 | $30.33 | -6.76% | Filled | 5d | 8d | 28% | 66% | 100% | 100% |
| 2026-01-02 | $25.94 | +6.09% | Open | — | — | 17% | 17% | 17% | 39% |
| 2025-10-23 | $29.12 | -11.06% | Filled | 49d | 51d | 16% | 16% | 16% | 16% |
| 2025-09-18 | $27.19 | +5.04% | Filled | 2d | 17d | 49% | 79% | 79% | 100% |
| 2025-07-24 | $31.77 | -15.55% | Open | 52d | — | 2% | 2% | 2% | 2% |
| 2025-06-04 | $25.67 | +7.99% | Filled | 35d | 40d | 1% | 1% | 1% | 1% |
| 2025-05-27 | $24.41 | +5.41% | Open | 2d | — | 40% | 90% | 90% | 90% |
| 2025-05-12 | $23.93 | +5.73% | Open | 10d | — | 29% | 29% | 75% | 75% |
| 2025-04-24 | $21.78 | +7.12% | Open | 5d | — | 32% | 88% | 88% | 88% |
| 2025-04-10 | $21.60 | -7.69% | Filled | 8d | 9d | 9% | 47% | 100% | 100% |
| 2025-01-30 | $24.74 | -8.89% | Filled | 10d | 14d | 11% | 17% | 67% | 100% |
| 2025-01-06 | $24.41 | +5.12% | Filled | 4d | 5d | 5% | 100% | 100% | 100% |
| 2024-08-05 | $30.22 | -5.20% | Filled | 1d | 9d | 78% | 78% | 100% | 100% |
| 2024-07-25 | $39.54 | -12.65% | Open | — | — | 17% | 17% | 17% | 17% |
| 2024-04-24 | $39.98 | +5.88% | Filled | 4d | 5d | 26% | 100% | 100% | 100% |
| 2023-11-14 | $41.28 | +5.60% | Open | 43d | — | 17% | 17% | 17% | 17% |
| 2023-09-07 | $46.09 | -5.10% | Filled | 22d | 53d | 26% | 49% | 49% | 49% |
| 2023-07-27 | $51.55 | +6.38% | Filled | 2d | 6d | 22% | 100% | 100% | 100% |
| 2023-04-27 | $46.28 | -7.71% | Filled | 16d | 29d | 7% | 26% | 26% | 77% |
| 2023-03-02 | $48.97 | -5.63% | Filled | 1d | 3d | 64% | 100% | 100% | 100% |
| 2023-01-26 | $43.33 | +5.91% | Open | — | — | 26% | 26% | 26% | 26% |
| 2022-12-13 | $38.92 | +5.45% | Filled | 1d | 2d | 75% | 100% | 100% | 100% |
| 2022-11-10 | $32.86 | +7.24% | Open | — | — | 11% | 11% | 11% | 11% |
| 2022-11-04 | $29.91 | +6.99% | Open | — | — | 33% | 33% | 33% | 33% |
| 2022-10-27 | $34.58 | -6.30% | Filled | 9d | 11d | 39% | 39% | 100% | 100% |
| 2022-10-18 | $31.76 | +5.07% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2022-10-04 | $32.06 | +5.46% | Filled | 4d | 5d | 11% | 100% | 100% | 100% |
| 2022-07-05 | $30.40 | -6.48% | Filled | 1d | 3d | 58% | 100% | 100% | 100% |
| 2022-06-13 | $36.31 | -5.51% | Filled | 3d | 31d | 22% | 66% | 66% | 66% |
| 2022-03-09 | $36.72 | +7.49% | Filled | 3d | 27d | 31% | 76% | 76% | 76% |
| 2022-03-04 | $40.36 | -7.66% | Filled | 4d | 9d | 31% | 97% | 100% | 100% |
| 2022-02-24 | $41.63 | -5.91% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2022-01-27 | $44.33 | +5.84% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
Frequently Asked Questions
What is STM's after-hours price?
STMicroelectronics N.V. (STM) is trading at $51.65 after hours, up $0.14 (0.27%) from its regular-session close of $51.51.
Why is STM moving after hours?
STM is up 0.27% 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 STM after-hours trading start and end?
After-hours trading in STM on the NYSE 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 STM's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and STM's gap history is the best guide to what happens next: 56% of STM gap-ups have fully filled, and 85% 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 STM report earnings?
STM is expected to report earnings around Oct 29, 2026 before the open (estimated), with an estimated EPS of $0.40. Earnings are the most common cause of a large after-hours move, since most companies report after the close.