Pre-market · Regular session opens 9:30 AM ET
Last update: Oct 22, 2026, 6:16 PM ET
Teradyne, Inc.
▼ 10.6% on Oct 22, 2026

Why Teradyne, Inc. (TER) Stock Fell 10.6% on Oct 22, 2026

Researched by BestStocks Market Desk · Published Oct 22, 2026
Prior close
$345.49
Oct 22, 2026 close
$308.75
Change
−$36.74
-10.63%
Rel. volume
2.1×
5.9M shares

What happened

Valuation-10.6%high confidence

Teradyne fell 10.19% to $310.27 as pre-earnings nervousness and valuation concerns drove selling ahead of the company's Q3 earnings report scheduled for October 27, 2026, according to market analysis cited by finance.yahoo.com. Elevated volume of 1.26M shares (2.17x average for this time of day) underscored the move, with investors repositioning exposure in semiconductor test equipment ahead of consensus EPS guidance of $2.08.

Source: fmp_intraday
What to watch next

Teradyne Q3 2026 earnings release on October 27, 2026 — monitor for actual EPS vs. $2.08 consensus and any guidance revisions for Q4 and full-year 2026.

Other developments that session

News

Diversify Advisory Services LLC increased its TER stake by 31.8% to 13,839 shares in Q3.

Source: defenseworld.net

Frequently asked questions

Why did Teradyne, Inc. (TER) stock fall on Oct 22, 2026?

Teradyne fell 10.19% to $310.27 as pre-earnings nervousness and valuation concerns drove selling ahead of the company's Q3 earnings report scheduled for October 27, 2026, according to market analysis cited by finance.yahoo.com. Elevated volume of 1.26M shares (2.17x average for this time of day) underscored the move, with investors repositioning exposure in semiconductor test equipment ahead of consensus EPS guidance of $2.08.

How much did TER stock fall on Oct 22, 2026?

TER fell 10.6% during the Oct 22, 2026 trading session.

This is an archived analysis of TER's Oct 22, 2026 session.
See TER's latest changes →
Educational research tool — not personalized investment advice. Figures reflect the Oct 22, 2026 session as first analyzed.