GET DAILY SIGNALSWhy Is Teradyne (TER) Stock Down -5.38% Today?
Key Takeaways
- TER shares fell 5.38% to about $306.26, down from a prior close of $323.68.
- The primary catalyst was a third-quarter earnings report that beat expectations but included fourth-quarter guidance signaling decelerating sequential growth.
- Revenue declined modestly quarter-over-quarter and margins compressed, even as AI-driven demand remained robust.
- The pullback also reflects profit-taking after a roughly 66% year-to-date advance that had already priced in much of the AI test boom.
- Traders are watching management's earnings-call commentary, peer results, and any signals on 2027 demand momentum.
- You can explore deeper Price Targets, Earnings history, and AI-driven Forecast analysis on Tickeron's dedicated pages.
- Discover today's top-performing strategies in Tickeron's Trending AI Robots section.
Opening Summary
Teradyne, Inc. (TER), the North Reading, Massachusetts-based maker of semiconductor test equipment and advanced robotics systems, is trading sharply lower on Wednesday, down roughly 5.38% to near $306.26 from a prior session close of $323.68. The decline follows the company's third-quarter earnings release, in which results topped Wall Street forecasts but fourth-quarter guidance pointed to a flattening revenue trajectory and lower sequential earnings — a signal that markets read as the cresting of a powerful AI-fueled growth surge.
Earnings Results and Guidance
The immediate trigger for the selloff was guidance, not the headline numbers. TER delivered a strong September quarter, with revenue up about 70% year-over-year to $1.31 billion and adjusted earnings of $2.29 per share, ahead of consensus estimates near $2.08. Yet management's fourth-quarter outlook — revenue of $1.25 billion to $1.35 billion and adjusted EPS of $1.95 to $2.25 — implied revenue roughly flat versus the just-reported quarter and earnings below it. For a stock that had already surged on AI demand, the flattening trajectory outweighed the beat.
Decelerating Momentum and Margin Compression
Beneath the strong year-over-year growth, sequential trends showed a pause. Revenue slipped about 1.7% from the second quarter's record $1.33 billion to $1.31 billion, and non-GAAP operating margin compressed from 33.7% to 31.6% as selling, administrative, and R&D expenses rose against flat revenue. Inventories also climbed, a metric investors watch closely in the cyclical semiconductor equipment industry. The combination of plateauing revenue and softer margins reinforced the view that the growth rate is moderating after an extraordinary run.
Valuation and Profit-Taking
The market reaction also reflects the high expectations already embedded in the share price. TER had risen roughly two-thirds on the year and touched a 52-week high near $488, as investors front-loaded the AI test boom. With AI-linked demand now accounting for more than 60% of revenue, confirmation of strong results bought little new upside. When a stock has already discounted a story, a solid print can still trigger selling, and the shares have been trending below key moving averages over the past month.
Market Context and Trading Activity
The decline in TER was driven primarily by company-specific news rather than broad market weakness, though semiconductor-equipment peers remain sensitive to the same AI demand narrative. The stock had risen 4.8% during Tuesday's regular session ahead of the report before reversing in after-hours trading, with the downbeat guidance setting the tone for Wednesday's session. Traders are monitoring whether the weakness spills over into adjacent chip-testing and equipment names and whether the broader semiconductor complex follows suit.
What Comes Next for TER
Looking ahead, attention turns to the company's earnings call and management commentary on the durability of AI-related test demand into 2027. Key signposts include whether fourth-quarter results can exceed the top of guidance, the trajectory of memory, hard-disk-drive, and high-speed interconnect testing, and how rival equipment makers report. Risks center on the concentration of revenue in AI-driven demand — the same factor that powered the rally could amplify a downturn if hyperscaler test spending normalizes.
Trending AI Robots
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Disclaimer
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Contributor
Sergey Savastiouk, Ph.D. has a degree in Applied Mathematics from Moscow University and has extensive experience as an entrepreneur, investor, manager, and mathematician. His professional expertise is in applied mathematics, mathematical modeling, system and pattern analysis, and software and hardware system integration. He has served as the CEO of several hi-tech start-up companies and nonprofit organizations, which has given him proven capabilities in business strategy for high-tech start-up companies, market assessment, company formation, team building, product development, marketing, and sales. He has published numerous articles in journals and magazines on related fields. As a retail investor, he spent 15 years developing his proprietary trading and quantitative algorithms (now Tickeron’s A.I.), which brought him significant returns in trading the stock market. His current work and goal in founding Tickeron is to bring professional, sophisticated stock market analysis capabilities to retail investors via an easy-to-use interface.
TER in upward trend: price may ascend as a result of having broken its lower Bollinger Band on October 15, 2026
TER may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options. In 35 of 37 cases where TER's price broke its lower Bollinger Band, its price rose further in the following month. The odds of a continued upward trend are 90%.
Technical Analysis (Indicators)
Bullish Trend Analysis
The RSI Oscillator points to a transition from a downward trend to an upward trend -- in cases where TER's RSI Indicator exited the oversold zone, 20 of 24 resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are 83%.
The Stochastic Oscillator shows that the ticker has stayed in the oversold zone for 11 days. The price of this ticker is presumed to bounce back soon, since the longer the ticker stays in the oversold zone, the more promptly an upward trend is expected.
Following a +4.80% 3-day Advance, the price is estimated to grow further. 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%.
The Aroon Indicator entered an Uptrend today. In 239 of 301 cases where TER Aroon's Indicator entered an Uptrend, the price rose further within the following month. The odds of a continued Uptrend are 79%.
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on October 12, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on TER as a result. In 65 of 89 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are 73%.
The Moving Average Convergence Divergence Histogram (MACD) for TER turned negative on October 12, 2026. This could be a sign that the stock is set to turn lower in the coming weeks. Traders may want to sell the stock or buy put options. Tickeron's A.I.dvisor looked at 49 similar instances when the indicator turned negative. In 38 of the 49 cases the stock turned lower in the days that followed. This puts the odds of success at 78%.
TER moved below its 50-day moving average on October 13, 2026 date and that indicates a change from an upward trend to a downward trend.
The 10-day moving average for TER crossed bearishly below the 50-day moving average on October 19, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In 12 of 14 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 86%.
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%.
Fundamental Analysis (Ratings)
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 Profit vs. Risk Rating rating for this company is 38 (best 1 - 100 worst), indicating well-balanced risk and returns. The average Profit vs. Risk Rating rating for the industry is 72, placing this stock slightly better than average.
The Tickeron Seasonality Score of 41 (best 1 - 100 worst) indicates that the company is fair valued in the industry. The Tickeron Seasonality score describes the variance of predictable price changes around the same period every calendar year. These changes can be tied to a specific month, quarter, holiday or vacation period, as well as a meteorological or growing season.
The Tickeron Price Growth Rating for this company is 47 (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 PE Growth Rating for this company is 57 (best 1 - 100 worst), pointing to average 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 Valuation Rating of 80 (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 (14.723) is slightly higher than the industry average of (6.539). P/E Ratio (44.219) is within average values for comparable stocks, (92.867). Projected Growth (PEG Ratio) (0.734) is also within normal values, averaging (0.832). Dividend Yield (0.002) settles around the average of (0.008) among similar stocks. P/S Ratio (12.077) is also within normal values, averaging (27.093).
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General Information
an electronic test systems manufacturer
Industry ElectronicProductionEquipment
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