394.47 USD
↗ 9.58 (2.49%)PRE MARKET (AS OF 09:20 AM EDT)
TER Stock Premarket
Teradyne, Inc. Common Stock
TERNASDAQ • USD
Market: OPEN
Premarket trading runs 4:00 AM – 9:30 AM ET.
TER is trading at $394.47 in premarket, up $9.58 (2.49%) from its previous close of $384.89.
📅 TER reported earnings on Aug 4, 2026 after the close, with an estimated EPS of $2.06. TER earnings details →
TER Premarket Chart
TER Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, TER has had 37 qualifying gap events (gaps of 5% or more at the open) — 20 gap-ups and 17 gap-downs. Gap-ups averaged +8%, 60% have fully filled, median time to fill 5.5 trading days. Gap-downs averaged -9.2%, 76% have fully filled, median time to fill 3 trading days. Most recent: a +6.2% gap up 3 days ago, still unfilled. TER has 2 unfilled gaps from the past 60 days; the largest is a +8.9% gap up on Jul 30, 2026, currently 12% retraced. Average 20-trading-day return after a TER gap up: +6.28%. After a gap down: +3.13%.
Gap Ups20 events
Fill Rate
60.0%
Avg Gap
8.0%
Avg 50% Fill
2d
Avg Fill
5.5d
Gap Downs17 events
Fill Rate
76.5%
Avg Gap
9.2%
Avg 50% Fill
3d
Avg Fill
3d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 55% | 70% | 70% | 80% |
| fills 50% | 30% | 55% | 60% | 75% |
| fills 75% | 10% | 45% | 50% | 60% |
| fills 100% | 10% | 35% | 40% | 50% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 65% | 82% | 82% | 88% |
| fills 50% | 29% | 53% | 65% | 76% |
| fills 75% | 29% | 53% | 59% | 71% |
| fills 100% | 24% | 47% | 53% | 59% |
Active Unfilled Gaps (past 60 days)
3 days ago
2026-08-04
Gap %
+6.24%
Gap From
$365.80
% vs Current
-4.96%
retraced 82% to $370.00
8 days ago
2026-07-30
Gap %
+8.92%
Gap From
$319.41
% vs Current
-17.01%
retraced 12% to $344.51
Complete Gap History — 37 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 3 days ago | $365.80 | +6.24% | Open | 3d | — | 25% | 82% | 82% | 82% |
| 8 days ago | $319.41 | +8.92% | Open | — | — | 12% | 12% | 12% | 12% |
| 9 days ago | $320.65 | +14.73% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 17 days ago | $333.76 | +8.16% | Filled | 4d | 5d | 18% | 100% | 100% | 100% |
| 21 days ago | $322.30 | -5.09% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 24 days ago | $341.11 | +6.58% | Filled | 1d | 2d | 73% | 100% | 100% | 100% |
| 29 days ago | $351.57 | +7.87% | Filled | 1d | 2d | 67% | 100% | 100% | 100% |
| 2026-07-07 | $379.52 | -6.71% | Filled | 3d | 3d | 27% | 100% | 100% | 100% |
| 2026-06-25 | $427.20 | +6.27% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-06-23 | $457.00 | -10.25% | Filled | 3d | 3d | 40% | 100% | 100% | 100% |
| 2026-06-15 | $403.20 | +5.77% | Filled | 2d | 13d | 15% | 78% | 78% | 100% |
| 2026-06-08 | $357.93 | +5.56% | Filled | 2d | 2d | 47% | 100% | 100% | 100% |
| 2026-04-30 | $306.33 | +6.75% | Filled | 13d | 54d | 1% | 1% | 1% | 85% |
| 2026-04-29 | $380.13 | -17.26% | Filled | 2d | 6d | 31% | 100% | 100% | 100% |
| 2026-04-08 | $320.48 | +7.35% | Filled | 16d | 16d | 17% | 17% | 17% | 100% |
| 2026-04-02 | $312.20 | -7.11% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-03-03 | $325.83 | -5.32% | Filled | 16d | 16d | 14% | 37% | 37% | 100% |
| 2025-10-29 | $144.38 | +17.75% | Open | 17d | — | 31% | 31% | 31% | 72% |
| 2025-10-13 | $132.08 | +5.01% | Open | 2d | — | 32% | 56% | 56% | 56% |
| 2025-09-22 | $119.85 | +5.51% | Open | — | — | 7% | 7% | 7% | 7% |
| 2025-07-30 | $90.55 | +16.76% | Open | — | — | 21% | 22% | 22% | 22% |
| 2025-05-12 | $77.42 | +7.30% | Filled | 8d | 10d | 25% | 47% | 100% | 100% |
| 2025-04-23 | $71.29 | +5.30% | Filled | 1d | 6d | 54% | 100% | 100% | 100% |
| 2025-04-10 | $79.44 | -5.36% | Filled | 10d | 22d | 29% | 29% | 59% | 81% |
| 2025-04-04 | $75.09 | -5.31% | Filled | 2d | 2d | 33% | 100% | 100% | 100% |
| 2025-04-03 | $83.62 | -5.90% | Filled | 27d | 27d | 21% | 35% | 35% | 35% |
| 2025-03-11 | $104.97 | -12.46% | Open | — | — | 19% | 19% | 19% | 19% |
| 2025-01-30 | $122.05 | -16.43% | Open | 1d | — | 77% | 84% | 84% | 93% |
| 2024-10-24 | $124.43 | -5.01% | Filled | 32d | 37d | 2% | 2% | 2% | 2% |
| 2024-08-05 | $117.27 | -5.21% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-07-25 | $143.54 | -10.52% | Open | 20d | — | 10% | 21% | 21% | 54% |
| 2024-04-25 | $100.70 | +6.67% | Open | 1d | — | 51% | 51% | 51% | 51% |
| 2024-01-31 | $104.59 | -8.70% | Filled | 8d | 9d | 36% | 36% | 100% | 100% |
| 2022-11-10 | $84.37 | +6.67% | Filled | 27d | 30d | 23% | 26% | 26% | 38% |
| 2022-07-27 | $98.15 | -7.09% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2022-01-27 | $143.37 | -22.91% | Open | 43d | — | 6% | 31% | 36% | 36% |
| 2021-10-28 | $123.07 | +5.63% | Open | — | — | 23% | 23% | 23% | 23% |
Frequently Asked Questions
What is TER's premarket price?
Teradyne (TER) is trading at $394.47 in premarket, up $9.58 (2.49%) from the previous close of $384.89.
Why is TER moving in premarket?
Teradyne (TER) is up 2.49% 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 TER premarket headlines and gap history below for the likely catalyst.
When does TER premarket trading start?
Premarket trading for TER on the NASDAQ 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 TER fill its gaps?
Over the past 5 years, 60% of TER gap-ups have fully filled and 76% of gap-downs have filled. Median time to fill is 6 trading days for gap-ups and 3 trading days for gap-downs.
Does TER have any unfilled gaps?
Yes. TER has 2 unfilled gaps from the past 60 days. The largest is a +8.9% gap up from Jul 30, 2026 and is currently 12% retraced.
What's the average return after a TER gap?
Based on 37 qualifying gap events over the past 5 years, the average 20-trading-day return after a TER gap up is +6.28%, and after a gap down is +3.13%.
When does TER report earnings?
TER reported earnings on Aug 4, 2026 after the close, with an estimated EPS of $2.06.