TOP TIERMARKET NEWSWIRE
Movers explained · October 28, 2026

Why Is TERADYNE INC (TER) Stock Moving Today?

By the Top Tier Newswire AI Desk · October 2, 2026 at 11:16 AM ET · reviewed against 15 wire stories

TERADYNE INC (TER) is drawing unusual attention today. Our newswire has captured 15 stories on TER across 10 sources in the last 36 hours, with AI sentiment reading bullish (avg 59/100).

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TER stock rose 7.37% to $446.43 on Thursday, driven by strong AI-related semiconductor test demand and a positive intraday session that included a 1.7% gap up open and a high of $446.79. The stock’s performance reflects continued momentum in the AI sector and Teradyne’s robust revenue growth.

What Happened

Teradyne reported Q2 2026 revenue rising 104% year over year to $1.329 billion, fueled by strong demand for AI-related semiconductor testing. This growth has positioned the stock for a sharp intraday move, with the session high reached just before noon. The stock opened at $422.98, well above the previous close of $415.79, and continued to climb throughout the morning. The volume of 1.0 million shares is 0.3 times the 3-month daily average, suggesting a relatively concentrated buying interest. The stock closed the session near its high at $445.85, with the price now within $42 of its 52-week high of $487.91.

What The Data Shows

Teradyne’s fundamentals show a company in high-growth mode, with trailing twelve-month revenue up 57.9% and a net margin of 25.8%. The stock trades at a price-to-earnings ratio of 57.1 and has a market cap of $62.7 billion. Despite the strong move, the 52-week tape showed only one fresh 52-week low and 15 fresh 52-week highs on October 2. Recent insider transactions include several sales by directors and the CEO, with a total of $5.9 million in sales reported in the last 90 days. Congressional trades show one sell by Donald J. Trump in July.

What To Watch

The stock’s next potential catalyst may come from continued AI-driven demand or a shift in investor sentiment. With no earnings date provided, coverage breadth and any unusual options activity will be key to watch in the coming days.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.

TER by the numbers

Coverage: 15 stories / 10 sourcesAI sentiment: 59/100 (bullish)Mkt cap: $62.7BP/E: 57.152w: $131.75 to $487.91
TER · Oct 2 session (5-min) · +8.36% vs prior close · updated 8:58 PM ET
$414$434$454prev close $415.79$450.567:00 AM10:13 AM1:27 PM4:41 PM7:55 PM7:00 AM · $422.987:05 AM · $425.007:10 AM · $424.507:15 AM · $424.237:20 AM · $425.557:25 AM · $423.547:30 AM · $425.907:35 AM · $425.007:40 AM · $425.067:50 AM · $424.988:05 AM · $423.468:10 AM · $425.258:15 AM · $425.198:20 AM · $426.008:25 AM · $427.008:30 AM · $430.508:35 AM · $429.188:40 AM · $431.008:45 AM · $432.508:50 AM · $432.188:55 AM · $433.009:00 AM · $433.009:05 AM · $431.849:10 AM · $432.179:15 AM · $431.069:20 AM · $430.009:25 AM · $428.019:30 AM · $431.319:35 AM · $435.939:40 AM · $437.099:45 AM · $437.939:50 AM · $437.579:55 AM · $439.4010:00 AM · $444.4710:05 AM · $441.5010:10 AM · $442.2510:15 AM · $442.6810:20 AM · $443.7410:25 AM · $441.2510:30 AM · $442.1210:35 AM · $442.4710:40 AM · $441.9910:45 AM · $442.7710:50 AM · $441.4310:55 AM · $444.0811:00 AM · $443.4311:05 AM · $444.1111:10 AM · $445.0511:15 AM · $445.5311:20 AM · $442.6911:25 AM · $445.3811:30 AM · $447.3911:35 AM · $448.2511:40 AM · $448.0811:45 AM · $447.8411:50 AM · $448.7011:55 AM · $449.8612:00 PM · $448.6712:05 PM · $448.9012:10 PM · $448.5312:15 PM · $448.8812:20 PM · $448.7312:25 PM · $449.2512:30 PM · $448.3612:35 PM · $449.6812:40 PM · $448.6012:45 PM · $448.4612:50 PM · $448.7612:55 PM · $449.311:00 PM · $449.001:05 PM · $447.721:10 PM · $447.281:15 PM · $446.731:20 PM · $447.341:25 PM · $446.721:30 PM · $447.591:35 PM · $448.211:40 PM · $447.981:45 PM · $449.021:50 PM · $449.991:55 PM · $449.562:00 PM · $448.362:05 PM · $447.412:10 PM · $448.632:15 PM · $447.622:20 PM · $447.662:25 PM · $448.252:30 PM · $449.182:35 PM · $447.532:40 PM · $449.712:45 PM · $450.252:50 PM · $451.642:55 PM · $450.523:00 PM · $450.613:05 PM · $449.193:10 PM · $449.503:15 PM · $448.623:20 PM · $448.743:25 PM · $448.703:30 PM · $449.943:35 PM · $449.613:40 PM · $449.303:45 PM · $449.323:50 PM · $448.553:55 PM · $449.054:00 PM · $449.944:05 PM · $449.044:10 PM · $449.044:20 PM · $449.644:35 PM · $449.044:40 PM · $449.444:45 PM · $449.504:50 PM · $449.005:00 PM · $449.045:25 PM · $449.245:45 PM · $449.466:15 PM · $449.506:40 PM · $449.457:30 PM · $448.017:35 PM · $449.507:40 PM · $449.007:45 PM · $451.007:55 PM · $450.56
AI sentiment, last 36h · averaged over 15 stories · 59/100 bullish
AI sentiment 59/100 (bullish)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 10 stories on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agonowThe Fly · sentiment 52 · Teradyne sees Q4 adjusted EPS $1.95-$2.25, consensus $2.03The Fly · 52Teradyne sees Q4 adjusted EPS $1.95-$2.25, consensus $2.03Investors.com · sentiment 58 · Teradyne Stock Falls Despite Chip-Gear Maker Beating Q3 GoalsInvestors.com · 58Teradyne Stock Falls Despite Chip-Gear Maker Beating Q3 GoalsMarketWatch · sentiment 63 · Teradyne Inc. stock outperforms competitors on strong trading dayMarketWatch · 63Teradyne Inc. stock outperforms competitors on strong trading dayGuruFocus · sentiment 42 · Teradyne (TER) Q3 Earnings Beat Estimates, Shares Drop Despite Strong ResultsGuruFocus · 42Teradyne (TER) Q3 Earnings Beat Estimates, Shares Drop Despite Strong ResultsGuruFocus · sentiment 67 · Teradyne (TER) Reports Q3 Revenue Beat Amid Strong AI DemandGuruFocus · 67Teradyne (TER) Reports Q3 Revenue Beat Amid Strong AI DemandWSJ Business · sentiment 74 · Teradyne Revenue, Profit Jump on Semiconductor Test GrowthWSJ Business · 74Teradyne Revenue, Profit Jump on Semiconductor Test GrowthYahoo Finance · sentiment 74 · Western Digital, Allegro MicroSystems, Amtech, and Teradyne shares skyrocket, what you need to knowYahoo Finance · 74Western Digital, Allegro MicroSystems, Amtech, and Teradyne shares skyrocket, what you ne…SEC 8-K · sentiment 50 · TERADYNE, INC (TER) files 8-KSEC 8-K · 50TERADYNE, INC (TER) files 8-KSeeking Alpha · sentiment 50 · Teradyne, Inc. 2026 Q3 - Results - Earnings Call PresentationSeeking Alpha · 50Teradyne, Inc. 2026 Q3 - Results - Earnings Call PresentationInvesting.com Markets · sentiment 38 · Why is Teradyne stock sliding today?Investing.com Markets · 38Why is Teradyne stock sliding today?
2h agoInvesting.com MarketsBEARISH 38General

Why is Teradyne stock sliding today?

Why is Teradyne stock sliding today?

3h agoSeeking AlphaNEUTRAL 50Earnings

Teradyne, Inc. 2026 Q3 - Results - Earnings Call Presentation

2026-10-28. The following slide deck was published by Teradyne, Inc.

6h agoSEC 8-KNEUTRAL 50General

TERADYNE, INC (TER) files 8-K

Filed: 2026-10-28 AccNo: 0001193125-26-434981 Size: 1 MB Item 2.02: Results of Operations and Financial Condition Item 9.01: Financial Statements and Exhibits

17h agoYahoo FinanceBULLISH 74General

Western Digital, Allegro MicroSystems, Amtech, and Teradyne shares skyrocket, what you need to know

A number of stocks jumped in the afternoon session after major artificial intelligence deals and landmark financing agreements reinforced investor confidence in sustained technological demand as reported by AP News.

19h agoWSJ BusinessBULLISH 74Earnings

Teradyne Revenue, Profit Jump on Semiconductor Test Growth

The automated test developer posted third-quarter net income of $342.4 million, up from $119.6 million the year prior.

19h agoGuruFocusBULLISH 67Earnings

Teradyne (TER) Reports Q3 Revenue Beat Amid Strong AI Demand

19h agoGuruFocusBEARISH 42Earnings

Teradyne (TER) Q3 Earnings Beat Estimates, Shares Drop Despite Strong Results

19h agoMarketWatchBULLISH 63General

Teradyne Inc. stock outperforms competitors on strong trading day

19h agoInvestors.comBULLISH 58Earnings

Teradyne Stock Falls Despite Chip-Gear Maker Beating Q3 Goals

Teradyne topped Wall Street's targets for the third quarter and with its guidance for Q4. But Teradyne stock fell.

19h agoThe FlyNEUTRAL 52Earnings

Teradyne sees Q4 adjusted EPS $1.95-$2.25, consensus $2.03

Frequently asked questions

Why is TER stock moving today?

TERADYNE INC (TER) is drawing unusual attention today. Our newswire has captured 15 stories on TER across 10 sources in the last 36 hours, with AI sentiment reading bullish (avg 59/100). The most recent driver: "Why is Teradyne stock sliding today?" (Investing.com Markets).

Is TER a buy right now?

Top Tier Newswire does not give financial advice. Our AI sentiment across the last 36 hours of TER coverage reads 59/100 over 15 stories; treat it as a research signal and do your own diligence.

How fast does this page update?

The data sections refresh continuously as the newswire lands coverage; the written analysis is published once per trading day. Pro subscribers additionally get real-time push alerts, watchlists, and the full live terminal.

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More on TER: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.

Earlier TER move explainers: 2026-10-02 · 2026-09-15 · 2026-09-14 · 2026-09-01 · 2026-08-21 · 2026-08-18 · 2026-08-17