147.70 USD
↘ 0.13 (0.09%)AFTER HOURS (AS OF Thu 04:00 PM EDT)
KLAC Stock After Hours
KLA Corporation Common Stock
KLACNASDAQ • USD
Market: OPEN
After-hours trading runs 4:00 PM – 8:00 PM ET.
KLAC last traded at $147.70 after hours, down $0.13 (0.09%) from its regular-session close of $147.83.
📅 KLAC is scheduled to report earnings on Oct 28, 2026 after the close (confirmed), with an estimated EPS of $1.18. KLAC earnings details →
KLAC After Hours Chart
KLAC After Hours News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, KLAC has had 34 qualifying gap events (gaps of 5% or more at the open) — 15 gap-ups and 19 gap-downs. Gap-ups averaged +6.7%, 67% have fully filled, median time to fill 5 trading days. Gap-downs averaged -10.7%, 74% have fully filled, median time to fill 6 trading days. Most recent: a -5.3% gap down 1 day ago, still unfilled. KLAC has 1 unfilled gap from the past 60 days — a -5.3% gap down on Oct 22, 2026, currently 3% retraced. Average 20-trading-day return after a KLAC gap up: -2%. After a gap down: +4.34%.
Gap Ups15 events
Fill Rate
66.7%
Avg Gap
6.7%
Avg 50% Fill
1.5d
Avg Fill
5d
Gap Downs19 events
Fill Rate
73.7%
Avg Gap
10.7%
Avg 50% Fill
3d
Avg Fill
6d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 87% | 93% | 93% | 93% |
| fills 50% | 40% | 73% | 73% | 73% |
| fills 75% | 13% | 47% | 47% | 53% |
| fills 100% | 0% | 40% | 47% | 53% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 74% | 84% | 84% | 84% |
| fills 50% | 37% | 68% | 68% | 68% |
| fills 75% | 21% | 53% | 63% | 63% |
| fills 100% | 16% | 42% | 53% | 63% |
Active Unfilled Gaps (past 60 days)
1 day ago
2026-10-22
Gap %
-5.28%
Gap From
$163.43
% vs Current
+10.55%
retraced 3% to $155.04
Complete Gap History — 34 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 | $163.43 | -5.28% | Open | — | — | 3% | 3% | 3% | 3% |
| 2026-09-14 | $180.64 | -6.95% | Filled | 5d | 6d | 39% | 100% | 100% | 100% |
| 2026-08-18 | $205.76 | -5.00% | Filled | 32d | 33d | 39% | 39% | 39% | 39% |
| 2026-08-04 | $182.75 | +5.05% | Filled | 3d | 14d | 42% | 67% | 67% | 100% |
| 2026-07-30 | $170.19 | +9.79% | Filled | 3d | 24d | 48% | 74% | 74% | 74% |
| 2026-07-29 | $190.80 | -6.91% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-07-21 | $207.60 | +6.09% | Filled | 2d | 4d | 48% | 100% | 100% | 100% |
| 2026-07-14 | $222.25 | +6.82% | Filled | 1d | 2d | 73% | 100% | 100% | 100% |
| 2026-07-09 | $221.18 | +8.07% | Filled | 1d | 3d | 62% | 100% | 100% | 100% |
| 2026-07-07 | $233.31 | -6.94% | Filled | 3d | 3d | 41% | 100% | 100% | 100% |
| 2026-07-01 | $301.71 | -5.37% | Open | — | — | 33% | 33% | 33% | 33% |
| 2026-06-25 | $240.48 | +6.10% | Filled | 1d | 6d | 79% | 100% | 100% | 100% |
| 2026-06-23 | $269.16 | -7.84% | Filled | 3d | 5d | 15% | 100% | 100% | 100% |
| 2026-06-08 | $192.92 | +5.22% | Filled | 30d | 31d | 26% | 34% | 34% | 34% |
| 2026-05-11 | $186.92 | -90.09% | Open | — | — | 0% | 0% | 1% | 2% |
| 2026-04-30 | $181.62 | -7.06% | Filled | 1d | 5d | 79% | 100% | 100% | 100% |
| 2026-04-28 | $190.00 | -6.37% | Filled | 1d | 13d | 63% | 63% | 98% | 100% |
| 2026-04-08 | $154.88 | +7.58% | Open | — | — | 26% | 26% | 26% | 26% |
| 2026-01-30 | $168.47 | -8.59% | Filled | 47d | 47d | 31% | 31% | 31% | 31% |
| 2026-01-15 | $143.45 | +7.22% | Filled | 3d | 11d | 13% | 83% | 100% | 100% |
| 2025-07-31 | $92.50 | -6.54% | Filled | 1d | 8d | 54% | 95% | 100% | 100% |
| 2025-05-12 | $70.12 | +6.25% | Open | — | — | 8% | 8% | 8% | 10% |
| 2025-04-16 | $67.62 | -5.61% | Filled | 1d | 6d | 55% | 100% | 100% | 100% |
| 2025-04-10 | $70.33 | -5.46% | Filled | 3d | 14d | 41% | 51% | 92% | 100% |
| 2024-09-26 | $77.21 | +5.36% | Filled | 1d | 3d | 81% | 100% | 100% | 100% |
| 2024-08-05 | $69.62 | -6.65% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-08-02 | $75.61 | -5.93% | Filled | 3d | 7d | 31% | 98% | 100% | 100% |
| 2024-07-31 | $75.89 | +6.14% | Filled | 2d | 2d | 33% | 100% | 100% | 100% |
| 2024-07-17 | $86.72 | -5.76% | Open | — | — | 24% | 24% | 24% | 24% |
| 2023-04-27 | $35.74 | +7.38% | Open | 1d | — | 56% | 56% | 56% | 56% |
| 2023-01-27 | $42.88 | -5.54% | Open | 5d | — | 23% | 71% | 71% | 71% |
| 2022-11-10 | $33.75 | +5.94% | Open | — | — | 40% | 40% | 40% | 40% |
| 2022-10-13 | $27.48 | -5.64% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2021-10-28 | $34.06 | +7.59% | Open | 1d | — | 54% | 56% | 56% | 56% |
Frequently Asked Questions
What is KLAC's after-hours price?
KLA (KLAC) is trading at $147.70 after hours, down $0.13 (0.09%) from its regular-session close of $147.83.
Why is KLAC moving after hours?
KLAC is down 0.09% 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 KLAC after-hours trading start and end?
After-hours trading in KLAC 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 KLAC's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and KLAC's gap history is the best guide to what happens next: 67% of KLAC gap-ups have fully filled, and 74% 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 KLAC report earnings?
KLAC is scheduled to report earnings on Oct 28, 2026 after the close (confirmed), with an estimated EPS of $1.18. Earnings are the most common cause of a large after-hours move, since most companies report after the close.