Analyst Report: TER

1. EXECUTIVE SUMMARY

Teradyne closed at $212.74 on Thursday 5 November 2026, down 15.24% on volume of 11,072,000 shares, 3.72 times its 50-session average. The brief establishes no company-specific news for the day. Bloomberg and Yahoo Finance attribute the fall to a sector-wide chip sell-off, in which investors began repricing the AI trade after the Democrats' midterm sweep raised concern about tighter AI and data-center rules. Teradyne fell further than Applied Materials (-13.58%) and KLA (-13.35%), but less than Lam Research (-16.36%), so it sat in the middle of a group that fell hard together. The stock had already lost ground after a flat Q4 guide, and it is now 46.64% below its close of 8 October. The next company-specific test is the 27 January 2027 earnings report, with Applied Materials reporting on 12 November as the nearest read on the group.

2. THE CATALYST

The sell-off built over two sessions. Per TIKR, data-center stocks sold off on Wednesday 4 November after the election, and Qualcomm's weak guidance after that day's close added pressure. Teradyne closed down 6.82% that Wednesday at $250.99.

On Thursday, Bloomberg reported that semiconductor stocks plunged as investors turned skeptical of the AI trade after the Democrats dominated the midterms. The Philadelphia Semiconductor Index was down about 9.2% intraday, on pace for its worst day since June, and about 12% over the week. Seoul Economic Daily reported that the Nasdaq fell 5.52% into correction territory on fears of tighter Democratic regulation. The S&P 500 fell 4.36% in the session. Qualcomm fell 12% after its smartphone-chip sales missed estimates (American Bazaar).

MarketBeat framed Teradyne's move as profit-taking during the AI sell-off and found no new company development. An eToro analyst quoted by Yahoo Finance/Reuters read the move as the midterm risk premium unwinding after a Wednesday rally. Pluang called the sell-off an overreaction and argued that leading chipmakers face limited direct impact from the political delays.

3. COMPANY PROFILE

Teradyne designs and sells automated test systems and robotics products. Its Semiconductor Test segment serves wafer-level, device-package and system-level testing across automotive, industrial, communications, consumer, smartphone and cloud applications. The other segments are Robotics and Other. Peers in semiconductor equipment include Applied Materials, Lam Research and KLA.

Q3 results, per Zacks via Yahoo Finance, showed revenue of $1.31bn, up 69.8% year over year, and adjusted EPS of $2.29, ahead of consensus. Investing.com reported that AI-related revenue exceeded 60% of sales and that quarterly revenue has held near $1.3bn for a third straight quarter. AD HOC NEWS reported that Robotics posted its highest third-quarter revenue to date and reached profitability.

Guidance for Q4 is revenue of roughly $1.25bn to $1.35bn against a $1.27bn consensus, with adjusted EPS of $1.95 to $2.25, below the Q3 print of $2.29 (TIKR). The market capitalisation is $33.21bn, with a forward P/E of 17.7 and a trailing P/E of 24.5.

4. DEEP DIVE ANALYSIS

Timeline of the slide

Do fundamentals justify the move? The Thursday fall has no company-specific trigger in the brief. The earlier decline traces to the Q4 guide: TIKR and Yahoo Finance reported a fall of about 17% in the week to 3 November, and investors apparently read the flat guide as a sign that AI test demand had peaked. Revenue was flat at about $1.3bn for a third quarter while the share price had previously priced in strong growth. TIKR cited a forward multiple of about 70x at the end of June and about 25x at the 2 November close, against a 5-year average of 32x.

Peers. Over the same period AMAT fell 13.58%, LRCX 16.36%, KLA 13.35% and Qualcomm (Q) 7.36%. TIKR noted that Applied Materials fell on no news of its own and that its analysts had not cut earnings estimates. No source explains why Teradyne fell more than KLA or Applied Materials. As inference, its beta of about 1.75 (StockAnalysis) amplified the sector move.

Analyst actions. After the Q3 print, UBS cut its target from $485 to $430 (Buy, 29 October) and Goldman Sachs cut from $465 to $440 (Buy, 28 October). Morgan Stanley cut from $397 to $380 (Equal Weight, undated), and Argus lowered its target to $307 on 4 November. Baird's change is unconfirmed: MarketBeat reports a cut to neutral with a $420 target, while StockAnalysis reports a cut to $385 from $420, and neither source gives a date. StockAnalysis puts the consensus of 17 analysts at about $425 with a Buy rating, and MarketBeat's average is about $406 with Moderate Buy. Every target in the brief sits above the $212.74 close; the lowest, Argus at $307, is well above it. Insiders sold 12,000 shares worth about $4.4m over the 90 days to early November (MarketBeat).

Comparable episodes. Bloomberg described the chip index's weekly decline as its worst since April 2025, with a fifth straight weekly drop in prospect. Pluang said the Nasdaq was heading for its worst day since April 2025. TIKR noted that at the October 2018 equipment-boom peak the sector's forward multiple later fell to 8.2x, with Applied Materials as the reference.

Bull case. The sell-off is sector-driven and, per Pluang, an overreaction. Q3 revenue and EPS beat, Robotics turned profitable, and the forward P/E of 17.7 sits well below the 5-year average of 32x cited by TIKR. Analyst targets remain far above the price.

Bear case. The guide implies lower EPS next quarter, AI demand dependence exceeds 60% of sales, and a regulatory shift could slow data-center spending. The 2018 precedent shows how far multiples can fall after a boom peak.

5. TECHNICAL SNAPSHOT

The $212.74 close sits 40.0% below the 50-day average of $354.67 and 39.2% below the 200-day average of $349.77, and 56.4% below the 52-week high of $487.72 set on 30 June. It remains 40.7% above the 52-week low of $151.23 from 21 November 2025. Thursday's close is the lowest in the ten-session table, so no nearby support level exists in the recent closes; the intraday low was $211.63. The stock opened at $242.05, which was also the session high, and sold off all day. Volume of 11,072,000 was 3.72 times the 50-session average and exceeded the prior heavy day of 8,620,300 on 30 October. Resistance in the recent closes starts at $250.99, Wednesday's close.

6. RISK FACTORS

• Regulatory risk: tighter AI and data-center rules after the midterms could slow customer spending, which is the stated concern behind the sell-off.
• Demand concentration: AI-related revenue exceeded 60% of Q3 sales, and the Q4 EPS guide sits below Q3.
• Momentum: the chip index was on track for a fifth straight weekly decline (Bloomberg), and Teradyne has fallen 28.18% in five sessions.
• Estimate risk: analysts have cut targets since the print, and Argus sits at $307.

Dated catalysts

7. ACTIONABLE OUTLOOK

Short term (1-2 weeks): Direction depends on the sector. Applied Materials' 12 November report is the main scheduled event, and further regulatory headlines would drive the AI trade. A rebound toward $250.99 would be the first test of resistance, while a break below the $211.63 intraday low would extend the slide with no recent closing support beneath it.

Medium term (1-3 months): The stock needs evidence that Q4 results land at or above the top half of the $1.25bn to $1.35bn revenue guide, and that the sector sell-off stabilises. Analyst targets of $307 to $440 imply the Street sees value well above the current price, though several of those targets predate this week's fall.

Long term: The thesis has not changed on the evidence in the brief, since no Teradyne-specific news emerged. The Q3 beat, the Robotics profitability and a forward P/E of 17.7 stand as before, and the open question is the durability of AI test demand beyond a flat revenue run rate. This is analysis only and not personal financial advice.