38.63 USD
↘ 0.42 (1.09%)AFTER HOURS (AS OF Thu 07:59 PM EDT)
AMKR Stock After Hours
Amkor Technology Inc
AMKRNASDAQ • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
AMKR last traded at $38.63 after hours, down $0.42 (1.09%) from its regular-session close of $39.05.
📅 AMKR is scheduled to report earnings on Oct 26, 2026 after the close (confirmed), with an estimated EPS of $0.78. AMKR earnings details →
AMKR After Hours Chart
AMKR After Hours News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, AMKR has had 50 qualifying gap events (gaps of 5% or more at the open) — 29 gap-ups and 21 gap-downs. Gap-ups averaged +7.3%, 79% have fully filled, median time to fill 2 trading days. Gap-downs averaged -8.3%, 62% have fully filled, median time to fill 6 trading days. Most recent: a -5.4% gap down 1 day ago, still unfilled. AMKR has 2 unfilled gaps from the past 60 days; the largest is a -5.9% gap down on Oct 15, 2026, currently 88% retraced. Average 20-trading-day return after a AMKR gap up: -3.63%. After a gap down: +3.51%.
Gap Ups29 events
Fill Rate
79.3%
Avg Gap
7.3%
Avg 50% Fill
1d
Avg Fill
2d
Gap Downs21 events
Fill Rate
61.9%
Avg Gap
8.3%
Avg 50% Fill
1d
Avg Fill
6d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 76% | 90% | 90% | 90% |
| fills 50% | 59% | 83% | 86% | 86% |
| fills 75% | 34% | 76% | 79% | 83% |
| fills 100% | 24% | 59% | 66% | 72% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 81% | 90% | 90% | 90% |
| fills 50% | 43% | 62% | 67% | 67% |
| fills 75% | 33% | 43% | 52% | 67% |
| fills 100% | 19% | 38% | 38% | 52% |
Active Unfilled Gaps (past 60 days)
1 day ago
2026-10-22
Gap %
-5.40%
Gap From
$43.73
% vs Current
+11.98%
retraced 17% to $41.77
8 days ago
2026-10-15
Gap %
-5.87%
Gap From
$44.82
% vs Current
+14.78%
retraced 88% to $44.50
Complete Gap History — 50 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 1 day ago | $43.73 | -5.40% | Open | — | — | 17% | 17% | 17% | 17% |
| 2 days ago | $41.70 | +6.71% | Filled | 1d | 2d | 58% | 100% | 100% | 100% |
| 8 days ago | $44.82 | -5.87% | Open | 1d | — | 76% | 88% | 88% | 88% |
| 2026-09-14 | $51.73 | -8.53% | Filled | 5d | 6d | 30% | 100% | 100% | 100% |
| 2026-08-27 | $48.40 | +8.22% | Filled | 2d | 2d | 42% | 100% | 100% | 100% |
| 2026-08-18 | $61.30 | -6.22% | Open | — | — | 45% | 45% | 45% | 45% |
| 2026-07-31 | $48.26 | +5.51% | Filled | 1d | 2d | 65% | 100% | 100% | 100% |
| 2026-07-30 | $42.73 | +10.33% | Filled | 54d | 55d | 18% | 18% | 18% | 18% |
| 2026-07-28 | $60.71 | -14.68% | Filled | 6d | 15d | 3% | 52% | 59% | 100% |
| 2026-07-24 | $65.33 | +8.83% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-07-21 | $62.56 | +7.19% | Filled | 1d | 5d | 52% | 100% | 100% | 100% |
| 2026-07-14 | $66.06 | +5.68% | Filled | 2d | 2d | 49% | 100% | 100% | 100% |
| 2026-07-09 | $66.91 | +6.76% | Filled | 3d | 3d | 15% | 100% | 100% | 100% |
| 2026-07-07 | $69.88 | -5.36% | Filled | 3d | 3d | 44% | 100% | 100% | 100% |
| 2026-06-25 | $82.76 | +6.68% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-06-23 | $93.55 | -8.78% | Open | — | — | 33% | 37% | 37% | 37% |
| 2026-06-18 | $86.43 | +6.20% | Filled | 1d | 3d | 52% | 100% | 100% | 100% |
| 2026-06-17 | $86.55 | +5.14% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-06-15 | $82.78 | +5.71% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-06-08 | $64.95 | +5.31% | Filled | 2d | 20d | 47% | 93% | 93% | 100% |
| 2026-06-04 | $75.20 | -5.23% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-05-26 | $65.75 | +9.51% | Filled | 4d | 9d | 42% | 81% | 100% | 100% |
| 2026-04-28 | $75.62 | -12.64% | Filled | 1d | 6d | 76% | 100% | 100% | 100% |
| 2026-04-24 | $72.91 | +6.65% | Filled | 1d | 3d | 66% | 100% | 100% | 100% |
| 2026-04-08 | $47.62 | +9.03% | Open | — | — | 19% | 19% | 19% | 19% |
| 2026-04-02 | $46.49 | -6.22% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-02-13 | $51.59 | -7.18% | Filled | 8d | 37d | 34% | 34% | 85% | 85% |
| 2026-01-15 | $48.67 | +7.30% | Filled | 1d | 2d | 88% | 100% | 100% | 100% |
| 2026-01-05 | $42.92 | +6.95% | Filled | 22d | 22d | 15% | 15% | 15% | 17% |
| 2025-11-20 | $31.43 | +6.54% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-11-04 | $37.84 | -5.76% | Filled | 1d | 19d | 52% | 75% | 75% | 100% |
| 2025-11-03 | $32.28 | +5.14% | Filled | 9d | 9d | 8% | 48% | 100% | 100% |
| 2025-10-28 | $33.18 | -7.75% | Filled | 1d | 2d | 92% | 100% | 100% | 100% |
| 2025-10-16 | $31.28 | +5.26% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-10-13 | $28.26 | +6.33% | Open | — | — | 19% | 37% | 37% | 37% |
| 2025-10-07 | $30.57 | +9.72% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-09-16 | $25.68 | +8.70% | Open | 1d | — | 64% | 79% | 79% | 79% |
| 2025-08-07 | $22.21 | +5.09% | Open | 1d | — | 79% | 79% | 79% | 79% |
| 2025-07-29 | $21.23 | +15.50% | Open | 3d | — | 4% | 90% | 90% | 90% |
| 2025-04-23 | $15.96 | +6.02% | Open | 1d | — | 70% | 70% | 70% | 70% |
| 2025-04-10 | $17.98 | -5.45% | Filled | 3d | 16d | 15% | 50% | 67% | 100% |
| 2025-02-11 | $24.36 | -8.58% | Open | — | — | 43% | 44% | 49% | 49% |
| 2024-10-29 | $29.53 | -15.37% | Open | 1d | — | 70% | 70% | 76% | 76% |
| 2024-10-04 | $29.09 | +5.50% | Filled | 2d | 14d | 40% | 64% | 64% | 100% |
| 2024-08-05 | $28.63 | -6.04% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-07-30 | $37.60 | -6.99% | Open | — | — | 34% | 34% | 34% | 34% |
| 2024-07-17 | $44.68 | -7.27% | Open | — | — | 33% | 33% | 33% | 33% |
| 2024-04-30 | $31.47 | +11.31% | Filled | 1d | 2d | 77% | 100% | 100% | 100% |
| 2023-10-31 | $20.44 | -9.49% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2023-09-07 | $27.26 | -14.75% | Filled | 50d | 55d | 3% | 3% | 3% | 3% |
Frequently Asked Questions
What is AMKR's after-hours price?
Amkor Technology (AMKR) is trading at $38.63 after hours, down $0.42 (1.09%) from its regular-session close of $39.05.
Why is AMKR moving after hours?
AMKR is down 1.09% 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 AMKR after-hours trading start and end?
After-hours trading in AMKR 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 AMKR's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and AMKR's gap history is the best guide to what happens next: 79% of AMKR gap-ups have fully filled, and 62% 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 AMKR report earnings?
AMKR is scheduled to report earnings on Oct 26, 2026 after the close (confirmed), with an estimated EPS of $0.78. Earnings are the most common cause of a large after-hours move, since most companies report after the close.