TER Stock After Hours

Teradyne, Inc. Common Stock
TERNASDAQ • USD
258.71 USD
↘ 7.07 (2.66%)AFTER HOURS (AS OF Wed 07:59 PM EST)
🔴Market: CLOSED

After-hours trading runs 4:00 PM – 8:00 PM ET.

TER last traded at $258.71 after hours, down $7.07 (2.66%) from its regular-session close of $265.78.

📅 TER is expected to report earnings around Jan 27, 2027 after the close (estimated), with an estimated EPS of $2.12. TER earnings details →

Gap Analytics — 5-year history, 5% minimum gap

Over the past 5 years, TER has had 44 qualifying gap events (gaps of 5% or more at the open) — 22 gap-ups and 22 gap-downs. Gap-ups averaged +8%, 73% have fully filled, median time to fill 5 trading days. Gap-downs averaged -8.6%, 68% have fully filled, median time to fill 6 trading days. Most recent: a +7.7% gap up 1 day ago, still unfilled. TER has 4 unfilled gaps from the past 60 days; the largest is a +7.7% gap up on Nov 11, 2026, currently 68% retraced. Average 20-trading-day return after a TER gap up: +4.74%. After a gap down: +4.16%.

Gap Ups22 events
Fill Rate
72.7%
Avg Gap
8.0%
Avg 50% Fill
2d
Avg Fill
5d
Avg 20d return after gap-up: +4.74%
Gap Downs22 events
Fill Rate
68.2%
Avg Gap
8.6%
Avg 50% Fill
3d
Avg Fill
6d
Avg 20d return after gap-down: +4.16%
Avg Gap Fill by Timeframes
Gap Ups
1 day1 week2 week4 week
fills 25%64%77%77%86%
fills 50%41%64%68%82%
fills 75%14%50%55%64%
fills 100%14%45%50%59%
Gap Downs
1 day1 week2 week4 week
fills 25%59%77%77%82%
fills 50%27%50%59%68%
fills 75%23%45%50%59%
fills 100%18%41%45%50%
Active Unfilled Gaps (past 60 days)
1 day ago
2026-11-11
Gap %
+7.71%
Gap From
$245.40
% vs Current
-7.58%
retraced 68% to $251.38
13 days ago
2026-10-30
Gap %
-6.31%
Gap From
$296.23
% vs Current
+11.56%
retraced 35% to $284.16
15 days ago
2026-10-28
Gap %
-6.49%
Gap From
$323.68
% vs Current
+21.90%
retraced 68% to $317.00
21 days ago
2026-10-22
Gap %
-6.32%
Gap From
$345.49
% vs Current
+30.11%
retraced 24% to $328.83
Complete Gap History — 44 events
DateGap FromGap %StatusDays to 50%Days to Fill% of Gap Filled After
1 day1 week2 week4 week
1 day ago$245.40+7.71%Open1d—68%68%68%68%
6 days ago$212.74+8.93%Filled1d1d100%100%100%100%
13 days ago$296.23-6.31%Open——35%35%35%35%
15 days ago$323.68-6.49%Open1d—68%68%68%68%
21 days ago$345.49-6.32%Open——4%24%24%24%
24 days ago$325.00+5.08%Filled1d2d52%100%100%100%
2026-09-14$379.72-8.59%Filled5d6d7%100%100%100%
2026-08-18$443.14-5.41%Filled33d33d23%23%23%23%
2026-08-04$365.80+6.24%Filled3d5d25%100%100%100%
2026-07-30$319.41+8.92%Filled24d60d12%12%12%12%
2026-07-29$320.65+14.73%Filled1d1d100%100%100%100%
2026-07-21$333.76+8.16%Filled4d5d18%100%100%100%
2026-07-17$322.30-5.09%Filled1d1d100%100%100%100%
2026-07-14$341.11+6.58%Filled1d2d73%100%100%100%
2026-07-09$351.57+7.87%Filled1d2d67%100%100%100%
2026-07-07$379.52-6.71%Filled3d3d27%100%100%100%
2026-06-25$427.20+6.27%Filled1d1d100%100%100%100%
2026-06-23$457.00-10.25%Filled3d3d40%100%100%100%
2026-06-15$403.20+5.77%Filled2d13d15%78%78%100%
2026-06-08$357.93+5.56%Filled2d2d47%100%100%100%
2026-04-30$306.33+6.75%Filled13d54d1%1%1%85%
2026-04-29$380.13-17.26%Filled2d6d31%100%100%100%
2026-04-08$320.48+7.35%Filled16d16d17%17%17%100%
2026-04-02$312.20-7.11%Filled1d1d100%100%100%100%
2026-03-03$325.83-5.32%Filled16d16d14%37%37%100%
2025-10-29$144.38+17.75%Open17d—31%31%31%72%
2025-10-13$132.08+5.01%Open2d—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%Filled8d10d25%47%100%100%
2025-04-23$71.29+5.30%Filled1d6d54%100%100%100%
2025-04-10$79.44-5.36%Filled10d22d29%29%59%81%
2025-04-04$75.09-5.31%Filled2d2d33%100%100%100%
2025-04-03$83.62-5.90%Filled27d27d21%35%35%35%
2025-03-11$104.97-12.46%Open——19%19%19%19%
2025-01-30$122.05-16.43%Open1d—77%84%84%93%
2024-10-24$124.43-5.01%Filled32d37d2%2%2%2%
2024-08-05$117.27-5.21%Filled1d1d100%100%100%100%
2024-07-25$143.54-10.52%Open20d—10%21%21%54%
2024-04-25$100.70+6.67%Open1d—51%51%51%51%
2024-01-31$104.59-8.70%Filled8d9d36%36%100%100%
2022-11-10$84.37+6.67%Filled27d30d23%26%26%38%
2022-07-27$98.15-7.09%Filled1d1d100%100%100%100%
2022-01-27$143.37-22.91%Open43d—6%31%36%36%

Frequently Asked Questions

What is TER's after-hours price?

Teradyne (TER) is trading at $258.71 after hours, down $7.07 (2.66%) from its regular-session close of $265.78.

Why is TER moving after hours?

TER is down 2.66% 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 TER after-hours trading start and end?

After-hours trading in TER 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 TER's after-hours move hold at the open?

An after-hours move that carries into the next session becomes an opening gap, and TER's gap history is the best guide to what happens next: 73% of TER gap-ups have fully filled, and 68% 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 TER report earnings?

TER is expected to report earnings around Jan 27, 2027 after the close (estimated), with an estimated EPS of $2.12. Earnings are the most common cause of a large after-hours move, since most companies report after the close.