Teradyne Stock Surges 15%, With A 5-Day Winning Spree
Teradyne (TER) stock hit day 5 of a continuous streak of days with gains, with cumulative gains over this period amounting to a 15% return. The company has gained about $2.9 Bil in value over the last 5 days, with its current market capitalization at about $22 Bil. The stock remains 43.3% above its value at the end of 2024. This compares with year-to-date returns of 15.8% for the S&P 500.
Teradyne’s recent move stems from an impressive Q3 earnings beat and a strong Q4 outlook, driven by burgeoning AI demand in its semiconductor test division. With Q3 revenue at $769M and upgraded analyst targets, the narrative for sustained growth appears robust.
What is the point? Momentum often precedes conviction. A multi-day win streak can signal growing investor confidence or spark follow-on buying. Tracking such trends can help you ride the strength, or prepare for a well-timed entry if momentum fades. Our take: There are a few things to fear in TER stock given its overall Moderate operating performance and financial condition. But keeping in mind its Very High valuation, we think that the stock is Unattractive (see Buy or Sell TER).
For quick background, TER provides test solutions for semiconductor, system, industrial automation, and wireless device development and manufacturing, including smartphones, tablets, laptops, and IoT devices.
Comparing TER Stock Returns With The S&P 500
The following table summarizes the return for TER stock vs. the S&P 500 index over different periods, including the current streak:
| Return Period | TER | S&P 500 |
|---|---|---|
| 1D | 0.1% | 0.0% |
| 5D (Current Streak) | 15.2% | 4.2% |
| 1M (21D) | 3.3% | -1.1% |
| 3M (63D) | 52.2% | 5.5% |
| YTD 2025 | 43.3% | 15.8% |
| 2024 | 16.5% | 23.3% |
| 2023 | 24.8% | 24.2% |
| 2022 | -46.3% | -19.4% |
However, big gains can follow sharp reversals – but how has TER behaved after prior drops? See TER Dip Buyer Analysis to learn more.
Gains and Losses Streaks: S&P 500 Constituents
There are currently 127 S&P constituents with 3 days or more of consecutive gains and 4 constituents with 3 days or more of consecutive losses.
| Consecutive Days | # of Gainers | # of Losers |
|---|---|---|
| 3D | 69 | 2 |
| 4D | 9 | 2 |
| 5D | 46 | 0 |
| 6D | 2 | 0 |
| 7D or more | 1 | 0 |
| Total >=3 D | 127 | 4 |
Key Financials for Teradyne (TER)
Last 2 Fiscal Years:
| Metric | FY2023 | FY2024 |
|---|---|---|
| Revenues | $2.7 Bil | $2.8 Bil |
| Operating Income | $522.3 Mil | $552.2 Mil |
| Net Income | $448.8 Mil | $542.4 Mil |
Last 2 Fiscal Quarters:
| Metric | 2025 FQ2 | 2025 FQ3 |
|---|---|---|
| Revenues | $651.8 Mil | $769.2 Mil |
| Operating Income | $93.1 Mil | $151.9 Mil |
| Net Income | $78.4 Mil | $119.6 Mil |
While TER stock looks attractive given its winning streak, investing in a single stock without detailed, thorough analysis can be risky. The Trefis High Quality (HQ) Portfolio, with a collection of 30 stocks, has a track record of comfortably outperforming its benchmark that includes all 3 — the S&P 500, S&P mid-cap, and Russell 2000 indices. Why is that? As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index; less of a roller-coaster ride, as evident in HQ Portfolio performance metrics.