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Market open · Delayed intraday data · 1:27 PM ET
Last update: Aug 12, 2026, 1:03 PM ET
Teradyne, Inc.
▲ 12.1% on Jul 21, 2026

Why Teradyne, Inc. (TER) Stock Rose 12.1% on Jul 21, 2026

Researched by BestStocks Market Desk · Published Jul 22, 2026
Prior close
$333.76
Jul 21, 2026 close
$374.04
Change
+$40.28
+12.07%
Rel. volume
0.9×
4.0M shares

What happened

Activity+12.1%high confidence

Teradyne rose 12.36% to $375.00 as semiconductor shares broadly recovered on July 21, 2026, extending gains from a recent selloff amid investor anticipation ahead of tech earnings season, according to web search synthesis. The move reflects sector-wide risk-on appetite rather than a company-specific catalyst, with volume at 1.28M shares (0.91x normal for this time of session).

Source: fmp_intraday
What to watch next

Teradyne Q2 2026 earnings release on July 28, 2026; monitor semiconductor sector strength for follow-through.

Frequently asked questions

Why did Teradyne, Inc. (TER) stock rise on Jul 21, 2026?

Teradyne rose 12.36% to $375.00 as semiconductor shares broadly recovered on July 21, 2026, extending gains from a recent selloff amid investor anticipation ahead of tech earnings season, according to web search synthesis. The move reflects sector-wide risk-on appetite rather than a company-specific catalyst, with volume at 1.28M shares (0.91x normal for this time of session).

How much did TER stock rise on Jul 21, 2026?

TER rose 12.1% during the Jul 21, 2026 trading session.

This is an archived analysis of TER's Jul 21, 2026 session.
See TER's latest changes →
Educational research tool — not personalized investment advice. Figures reflect the Jul 21, 2026 session as first analyzed.