Teradyne Stock Technical Analysis 2026: Reading the Chart After TER’s 19% Single-Day Crash

Price is below the 50-day, RSI is at 38, MACD is negative, and options are pricing ±16% swings. Here’s how to read the TER chart right now.

If you’re trying to figure out what to do with Teradyne stock after April 29’s brutal earnings selloff, the chart has a lot to say — though not all of it is clear. TER dropped 19.4% in a single session, closing at $306.33 after opening the day around $314. Volume was massive: 13.02 million shares traded against a recent daily average of roughly 3.5 million. That’s the kind of flush that changes a chart’s character.

This piece breaks down the Teradyne technical analysis picture as it stands on April 30, 2026 — the moving averages, momentum indicators, Bollinger Bands, volatility measures, and key price levels traders need to know. I’ll also look at what the options market is implying about near-term TER price targets.

Teradyne Stock Price Today: Where Things Stand

TER is currently trading at $306.33. To put that in context:

• 52-week high: $422.11 (hit on April 24, just five days before the crash)
• 52-week low: $73.11
• 50-day moving average: $328.64
• 200-day moving average: $206.90

The stock has fallen $115.78, or 27.4%, from its 52-week high in the span of a week. It’s now sitting in no man’s land — below the 50-day, well above the 200-day, and right around the lower Bollinger Band. The year-to-date return is still positive at +47.6%, which shows how extreme the 2026 run-up was before the selloff hit.

Moving Average Analysis: The 50-Day vs. 200-Day Story

The first thing most technical traders look at is moving average alignment, and TER’s current setup is genuinely mixed.

The 200-day moving average at $206.90 is far below current price. This means the long-term trend, as defined by the 200-day, remains firmly bullish. TER is roughly 48% above its own 200-day average. In a normal pullback environment, that’s the level where the trend gets defined — and it’s a long way down from here.

The 50-day moving average at $328.64 is the problem. TER closed below its 50-day on April 29, and the gap is meaningful: the stock is roughly 6.8% below that average right now. Price breaking the 50-day MAMAMastercard Incorporated$488.07+0.82% Valuation Verdict Fairly Valued For a complete valuation analysis, visit the Mastercard Incorporated Stock Analysis page.Run Full Analysis on above-average volume after an earnings miss is not a casual event. It’s a structural shift in short-term trend.

The 20-day moving average at $376.70 is even further above, functioning as resistance. Any recovery rally that tries to close this gap will likely stall as sellers who bought in the $370–$380 range see an exit opportunity.

For traders, the level to watch on the upside is $328.64 (50-day reclaim). Until that happens, the short-term bias leans bearish regardless of the longer-term trend.

RSI Analysis: Is Teradyne Oversold Yet?

The 14-day Relative Strength Index is sitting at 38.3. That’s below the neutral 50 level and getting closer to the conventional “oversold” threshold of 30, but it hasn’t crossed it yet.

Here’s the nuance: RSI at 38 in a stock that just dropped 19% in a day on high volume tells you momentum has shifted, but not necessarily that the stock is done going down. Stocks with strong downside momentum can push RSI into the 20s before a genuine reversal. The RSI level alone doesn’t give a strong buy signal here.

What to watch for: RSI crossing back above 40 on rising price would suggest momentum is stabilizing. A divergence — where price makes a new low but RSI doesn’t — would be a more meaningful signal that selling pressure is exhausting itself. Neither of those conditions exists yet.

One more data point worth noting: 13 of the last 20 trading days closed in the green (65% green days). That statistic predates the April 29 crash and reflects what the chart looked like during TER’s run to $422. The green-day count will shift as more sessions are added to the lookback.

MACD: Bearish Signal Confirmed

The MACD reading is -4.73, which puts it firmly in bearish territory. The MACD histogram is negative, confirming downside momentum pressure — the kind that develops when the faster moving average falls below the slower one.

For traders who use MACD as a primary signal, there’s no entry here until you get a bullish crossover. That crossover would require the fast (12-day EMA) line to cross back above the slow (26-day EMA) line. Given the speed of the recent selloff, that’s probably at minimum a week or two away, assuming the stock stabilizes at current levels.

The MACD signal is bearish short-term. If the stock grinds sideways from here, the MACD lines will eventually converge. A decisive upward cross with a positive histogram shift would be the cleaner entry signal for momentum traders.

Bollinger Bands: Testing the Lower Band

TER’s Bollinger Bands are centered on the 20-day SMA at $376.70. Given the selloff, the stock has blown well through the middle band and is now trading near — and briefly below — the lower Bollinger Band at $296.71.

Closing below the lower Bollinger Band isn’t automatically a buy signal. In strong downtrends, price can “walk the band” — trading at or below the lower band for multiple sessions as selling continues. But a single violent close below the lower band followed by a recovery back inside the bands can signal a reversal, particularly when combined with improving RSI or volume patterns.

The April 29 session closed at $306.33 with an intraday low of $301.86. The lower Bollinger Band is at $296.71. The stock is testing that level right now. How it behaves over the next few sessions will tell you whether the lower band provides support or fails.

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Key Support and Resistance Levels for TER

Here’s the price map traders should have in front of them:

Resistance levels (overhead):

• $328.64 — 50-day moving average; the key level for trend recovery
• $369.31 — cluster resistance, tested five times; a breakout above here with volume would signal real strength
• $374.68 — former cluster support now acting as overhead resistance, tested four times
• $376.70 — 20-day moving average; needs to be reclaimed for short-term bulls to regain confidence

Support levels (downside):

• $296.71 — lower Bollinger Band
• $206.90 — 200-day moving average; the longer-term trend floor

The gap between current price ($306.33) and the 200-day ($206.90) is $99.43, or roughly 32%. That’s a lot of space between here and a true “long-term support” buy. It also reflects how much the stock ran in 2026 before the selloff.

Teradyne Stock Volatility: What the Numbers Say

The volatility picture around TER right now is worth understanding before sizing any position.

30-day Historical Volatility (Close-to-Close): 98.4%. The full-history average for TER is 37.6%. So current volatility is running at 2.6x the long-term norm. That’s what a 19% single-day move does to the 30-day HV number.

Beta: 1.79x. TER already moves roughly 79% more than the broader market in normal conditions. Layer in 98% realized volatility and you have a stock that can swing 4–5% on a quiet market day.

Value at Risk (5% confidence): -3.40% — meaning in the worst 5% of daily outcomes, TER historically loses more than 3.4%. At 1% confidence, that VaR jumps to -6.53%. The conditional VaR (expected loss given a bad day) at 5% is -5.51%.

This isn’t a stock for traders who can’t stomach watching a position move $15–20 in a day. Position sizing matters here.

Options Market Implied Volatility: What the Market Expects Next

The options market is pricing significant uncertainty into TER’s near-term moves.

ATM Implied Volatility: 72.3%, which puts it at an IV Context Score of 85 out of 100. That means options are in the most expensive 15% of their recent range — premium sellers historically have an edge in this environment, though that doesn’t make it easy money.

Nearest-expiry implied move (through May 29): ±16.2%, or ±$49.60. At current price, that puts the market-implied range at roughly $256.73 on the downside and $355.93 on the upside by May 29 expiry.

The Put/Call Ratio is 0.49x — relatively low, which suggests options traders haven’t loaded up heavily on downside protection despite the selloff. That could mean the market doesn’t expect a catastrophic further decline, or it could mean put buying simply hasn’t caught up yet.

For options traders: Elevated IV means selling premium (strangles, cash-secured puts at support levels) has a statistical edge — but you need to be comfortable with TER pinning far outside your spread in a volatile tape.

Recent Trading Data: The Last 15 Sessions

Looking at the last 15 sessions from April 9 through April 29:

The average daily volume over this period was 3.5 million shares. April 29’s 13 million share session was 3.7x the recent average. That’s distribution volume — institutional selling, not casual profit-taking. When that much stock changes hands at a 19% discount, the sellers were motivated.

The 15-session return: -15.89%.

Insider Activity: Insiders Were Already Selling

One data point that deserves attention: insiders have been selling shares throughout March and April 2026.

Over the last three months, there were 28 insider transactions: 6 open-market sales, 0 open-market purchases, and 19 award-related transactions (stock grants and tax-related dispositions). The open-market sales:

• Regan Mills sold shares on April 8 ($342.17), April 2 ($290.88)
• Mercedes Johnson sold 625 shares on April 6 at $312.20

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Insider selling by itself isn’t a red flag — executives sell shares for all kinds of reasons — but zero open-market buys combined with multiple discretionary sales ahead of an earnings-driven selloff is worth noting. Nobody at the company stepped in to buy the dip before April 29.

Short Interest: Not a Major Factor

Short interest is modest at 5 million shares (3.62% of the float), with a Short Ratio of 1.6 days to cover. That hasn’t changed from the prior month. At this level, a short squeeze isn’t a realistic catalyst — there simply aren’t enough shorts to create a meaningful covering rally. The bearish bets on TER are relatively small, which means any recovery needs to come from buyers showing up rather than short sellers getting squeezed out.

Teradyne Technical Analysis: The Trading Plan

Pulling this together, here’s a practical framework for different types of traders:

Short-term traders: The setup is bearish to neutral. MACD is negative, RSI is below 50, price is below the 50-day and 20-day MAs. The path of least resistance favors consolidation or further weakness unless a clear catalyst emerges. Watch for the $296.71 lower Bollinger Band — a hold and recovery from that level would be the first meaningful technical positive.

Swing traders: The next clean long entry is a confirmed break back above the 50-day SMA at $328.64, ideally on above-average volume. A failed test of that level that sends price back toward $296–300 could set up a higher-low structure worth buying into.

Long-term investors: TER is still 48% above its 200-day moving average. The long-term trend is intact. If you believe in the semiconductor testing thesis and AI hardware buildout, the 200-day at $206.90 is where the trend structure breaks. Until then, you’re in a pullback within a larger uptrend — uncomfortable but not structurally broken.

New buyers: Wait for confirmation. Either a sustained move above $369.31 with volume, or a controlled pullback that holds and bounces from the lower Bollinger Band area. Buying into a falling knife where MACD is negative and RSI hasn’t stabilized requires a high conviction thesis and tight risk management.

The Bottom Line on TER Stock Technicals

Teradyne’s chart tells a specific story: this was a very extended stock that ran from $73 to $422 in a year, then got hit with a margin guidance miss that created a 19% single-session flush. The technicals went from bullish to neutral-to-bearish in one day.

The long-term trend structure is fine. The short-term picture is not great. Volatility is near historic highs. Options are expensive. The 50-day moving average needs to be reclaimed. Analysts still have a Buy consensus with a $355.53 mean target, suggesting the selloff may have gone too far — but the market will determine that, not analyst ratings.

For now, TER is a stock that demands patience over impulse.

This article is for informational and educational purposes only. Nothing here constitutes investment or trading advice. Options trading involves substantial risk of loss. Consult a qualified financial professional before making investment decisions.