55.34 USD
↗ 1.84 (3.44%)PRE MARKET (AS OF Fri 09:29 AM EDT)
STM Stock Premarket
STMicroelectronics N.V.
STMNYSE • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
STM last traded at $55.34 in premarket, up $1.84 (3.44%) from its previous close of $53.50.
📅 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 Premarket Chart
STM Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, STM has had 54 qualifying gap events (gaps of 5% or more at the open) — 27 gap-ups and 27 gap-downs. Gap-ups averaged +6.3%, 59% have fully filled, median time to fill 5 trading days. Gap-downs averaged -7.5%, 85% have fully filled, median time to fill 6 trading days. Most recent: a -7% gap down on Sep 14, 2026, which filled in 6 trading days. Average 20-trading-day return after a STM gap up: +4.96%. After a gap down: +8.34%.
Gap Ups27 events
Fill Rate
59.3%
Avg Gap
6.3%
Avg 50% Fill
4d
Avg Fill
5d
Gap Downs27 events
Fill Rate
85.2%
Avg Gap
7.5%
Avg 50% Fill
3d
Avg Fill
6d
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% | 59% | 81% | 85% | 85% |
| fills 50% | 26% | 63% | 74% | 78% |
| fills 75% | 15% | 56% | 67% | 74% |
| fills 100% | 4% | 44% | 67% | 70% |
Complete Gap History — 54 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 19 days ago | $51.51 | -7.05% | Filled | 5d | 6d | 19% | 100% | 100% | 100% |
| 2026-07-30 | $48.36 | +7.18% | Filled | 16d | 32d | 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% |
Related: STM quote & chart · After hours · Technical analysis · Fundamentals · Earnings · Short interest
Frequently Asked Questions
What is STM's premarket price?
STMicroelectronics N.V. (STM) is trading at $55.34 in premarket, up $1.84 (3.44%) from the previous close of $53.50.
Why is STM moving in premarket?
STMicroelectronics N.V. (STM) is up 3.44% from its previous close in premarket trading. Premarket moves are usually driven by company-specific news, earnings results, analyst rating or price-target changes, or broad market and sector sentiment. Check the latest STM premarket headlines and gap history below for the likely catalyst.
When does STM premarket trading start?
Premarket trading for STM on the NYSE runs from 4:00 AM to 9:30 AM Eastern Time, ahead of the regular session (9:30 AM – 4:00 PM ET). After-hours runs from 4:00 PM to 8:00 PM ET.
How often does STM fill its gaps?
Over the past 5 years, 59% of STM gap-ups have fully filled and 85% of gap-downs have filled. Median time to fill is 5 trading days for gap-ups and 6 trading days for gap-downs.
Does STM have any unfilled gaps?
No. STM has no unfilled gap events from the past 60 days; all recent gaps have been filled.
What's the average return after a STM gap?
Based on 54 qualifying gap events over the past 5 years, the average 20-trading-day return after a STM gap up is +4.96%, and after a gap down is +8.34%.
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.