Why Is Teradyne (TER) Stock Down -14% Today?
Key Takeaways
- Shares of Teradyne (TER) are down approximately 14% in Wednesday's session, sliding from a prior close of $380.13 to trade near $327, in a classic "beat and guide lower" earnings reaction
- Primary catalyst: While Q1 2026 results were a blowout — revenue up 87% year-over-year to a record $1.282 billion and non-GAAP EPS of $2.56 beating consensus by 21% — management's Q2 2026 guidance signaled a meaningful sequential decline
- Q2 2026 revenue is guided at $1.15B–$1.25B (midpoint $1.2B), a step down from the record Q1; adjusted EPS guided at $1.86–$2.15, compared to $2.56 earned in Q1
- A richly elevated valuation — with a trailing P/E near 109, well above the average analyst price target — amplified profit-taking pressure on any sign of deceleration
- Despite the selloff, Teradyne's CEO emphasized that roughly 70% of revenues remain tied to AI-driven demand, a structural tailwind that supports longer-term positioning
- Traders are watching whether the Q2 sequential dip proves transient or reflects a broader softening in AI capital spending cycles
Opening Summary
Teradyne, Inc. (TER) is a North Reading, Massachusetts–based semiconductor test equipment company that designs and sells automated test systems used in the production of semiconductors, wireless products, data storage devices, and circuit boards. Shares plunged approximately 14% on Wednesday, falling from a prior close of $380.13 to trade near $327, as investors reacted negatively to the company's second-quarter outlook despite a record-breaking Q1 2026 earnings report. The market's sharply negative reaction underscores how elevated valuations leave little room for guidance that falls short of peak expectations, even when underlying results are objectively strong.
Q1 2026 Earnings: Record Beat
Teradyne's Q1 2026 results were, by any conventional measure, exceptional. Revenue surged 87% year-over-year to a record $1.282 billion, driven by $1.111 billion in Semiconductor Test revenues — the largest single-quarter result in the company's history. Non-GAAP EPS of $2.56 exceeded the Wall Street consensus of $2.11 by 21.4%, continuing a four-quarter streak of consensus beats. CEO Greg Smith noted that "roughly 70% of our revenue is linked to AI-driven demand," highlighting strength in compute and memory test as the core engine behind the record performance.
Q2 2026 Guidance: Sequential Pullback Disappoints
The selloff in TER is not a story of a miss — it is a story of a bar that was set too high by the market's own extrapolation. Teradyne guided Q2 2026 revenue at $1.15 billion to $1.25 billion (midpoint $1.2 billion), representing a sequential step down from Q1's record $1.282 billion. Adjusted EPS guidance of $1.86–$2.15 per diluted share implies a midpoint of $2.01, well below the $2.56 earned in Q1. While the Q2 revenue midpoint narrowly exceeded the analyst consensus of approximately $1.17 billion, investors had been pricing in sustained momentum at or near Q1 levels — and the sequential deceleration was sufficient to trigger aggressive profit-taking.
Valuation Overhang and Profit-Taking Risk
Entering Tuesday's earnings report, TER was trading at a trailing P/E of approximately 109, a level that demands consistent sequential growth to be sustained. The average analyst price target stood at $328.87 — meaning the stock had already traded well past what most sell-side models could justify on a near-term basis. At that valuation, any sequential guidance miss, however modest, carries outsized downside risk: when forward earnings estimates are revised lower even slightly, the multiple compression effect is magnified. The combination of a stretched valuation, a stock trading significantly above consensus price targets, and a Q2 outlook that signals a sequential profit decline created ideal conditions for the kind of double-digit selloff seen Wednesday.
Market Context and Trading Activity
Wednesday's TER decline was dramatically out of proportion with broader market or sector movements, making it unambiguously earnings-driven rather than macro-driven. Volume was substantially elevated relative to average daily trading, with heavy after-hours selling on Tuesday night continuing into the regular Wednesday session. Semiconductor peers and ETFs such as SMH did not exhibit comparable declines, isolating the move as idiosyncratic to Teradyne's guidance reset rather than a sector-wide rotation. The $380.13 prior close represented a technically extended level well above both the 50-day and 200-day moving averages, leaving significant air below when the selling commenced.
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What Comes Next for TER
Teradyne's next major milestone is its Q2 2026 earnings report, which will serve as the definitive test of whether the sequential pullback in guidance is a temporary air pocket or a more sustained deceleration in AI-related semiconductor test demand. Analysts at Stifel, who raised their price target to $390 following the Q1 print, will be watching closely to see whether Q2 revenue comes in at the high end of the guided $1.15B–$1.25B range as a sign of execution. Robotics — a smaller but strategically important segment that generated $91 million in Q1 — remains a source of uncertainty, with softness in industrial automation end markets partially offsetting semiconductor test strength. Broader macro risks, including tariff policy and capital expenditure cycles among large hyperscaler customers, add an additional layer of uncertainty to the second-half demand picture. Analysts will also monitor whether the recent valuation reset brings TER back into alignment with consensus price targets, potentially providing a more durable support level for long-term investors.
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Financial writer and active order flow futures trader with a focus on fundamental analysis, macroeconomic factors, and equity research. I make in-depth blogs on stocks and ETFs, bridging the gap between raw market data and real-world trading decisions.
TER in +7.33% Uptrend, advancing for three consecutive days on September 22, 2026
Moving higher for three straight days is viewed as a bullish sign. Keep an eye on this stock for future growth. Considering data from situations where TER advanced for three days, in 254 of 315 cases, the price rose further within the following month. The odds of a continued upward trend are 81%.
Technical Analysis (Indicators)
Bullish Trend Analysis
The Momentum Indicator moved above the 0 level on September 16, 2026. You may want to consider a long position or call options on TER as a result. In 66 of 89 past instances where the momentum indicator moved above 0, the stock continued to climb. The odds of a continued upward trend are 74%.
The Moving Average Convergence Divergence (MACD) for TER just turned positive on September 18, 2026. Looking at past instances where TER's MACD turned positive, the stock continued to rise in 32 of 49 cases over the following month. The odds of a continued upward trend are 65%.
TER moved above its 50-day moving average on September 18, 2026 date and that indicates a change from a downward trend to an upward trend.
Bearish Trend Analysis
The 10-day RSI Indicator for TER moved out of overbought territory on August 18, 2026. This could be a bearish sign for the stock. Traders may want to consider selling the stock or buying put options. Tickeron's A.I.dvisor looked at 48 similar instances where the indicator moved out of overbought territory. In 36 of the 48 cases, the stock moved lower in the following days. This puts the odds of a move lower at 75%.
The Stochastic Oscillator has been in the overbought zone for 1 day. Expect a price pull-back in the near future.
The 10-day moving average for TER crossed bearishly below the 50-day moving average on August 28, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In 11 of 13 past instances when the 10-day crossed below the 50-day, the stock continued to move higher over the following month. The odds of a continued downward trend are 85%.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where TER declined for three days, the price rose further in 50 of 62 cases within the following month. The odds of a continued downward trend are 66%.
TER broke above its upper Bollinger Band on August 17, 2026. This could be a sign that the stock is set to drop as the stock moves back below the upper band and toward the middle band. You may want to consider selling the stock or exploring put options.
The Aroon Indicator for TER entered a downward trend on September 15, 2026. This could indicate a strong downward move is ahead for the stock. Traders may want to consider selling the stock or buying put options.
Fundamental Analysis (Ratings)
The Tickeron PE Growth Rating for this company is 21 (best 1 - 100 worst), pointing to outstanding earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
The Tickeron Profit vs. Risk Rating rating for this company is 26 (best 1 - 100 worst), indicating low risk on high returns. The average Profit vs. Risk Rating rating for the industry is 61, placing this stock better than average.
The Tickeron SMR rating for this company is 28 (best 1 - 100 worst), indicating very strong sales and a profitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Price Growth Rating for this company is 37 (best 1 - 100 worst), indicating steady price growth. TER’s price grows at a higher rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron Valuation Rating of 72 (best 1 - 100 worst) indicates that the company is slightly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: TER's P/B Ratio (18.149) is slightly higher than the industry average of (7.599). P/E Ratio (54.765) is within average values for comparable stocks, (153.531). Projected Growth (PEG Ratio) (0.730) is also within normal values, averaging (0.796). Dividend Yield (0.001) settles around the average of (0.002) among similar stocks. P/S Ratio (12.077) is also within normal values, averaging (27.897).
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General Information
an electronic test systems manufacturer
Industry ElectronicProductionEquipment
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