Teradyne, Inc. (TER) gained 4.56% on Wednesday, closing at $398.7 per share. The move extended a notable stretch of outperformance for the semiconductor test equipment maker.
Over the past seven days, TER has advanced 19.79%, one of the more significant short-term moves in the stock's recent history. The 30-day gain stands at 6.03%, suggesting the bulk of the near-term momentum has been concentrated in the most recent week of trading.
The company's market capitalization stood at $59.65 billion as of the close of trading on September 23, 2026, reflecting the cumulative impact of recent price appreciation across the broader timeframes tracked.
Teradyne operates in the automated test equipment sector, supplying testing systems used in semiconductor manufacturing and other industrial applications. The latest price action places the stock at $398.7, near the upper boundary of its recent trading range based on the figures available.
