Teradyne, Inc. (TER)
NASDAQ: TER · Real-Time Price · USD
402.68
+3.96 (0.99%)
At close: Oct 9, 2026, 4:00 PM EDT
404.00
+1.32 (0.33%)
After-hours: Oct 9, 2026, 7:59 PM EDT
Teradyne Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | 405.19 | 414.26 | 399.31 | 402.68 | 402.68 | 0.99% | 1,814,319 |
| Oct 8, 2026 | 405.00 | 410.73 | 388.85 | 398.72 | 398.72 | -3.17% | 3,317,014 |
| Oct 7, 2026 | 415.18 | 416.69 | 404.80 | 411.78 | 411.78 | -4.31% | 2,372,854 |
| Oct 6, 2026 | 445.07 | 448.00 | 427.04 | 430.32 | 430.32 | -3.20% | 1,993,912 |
| Oct 5, 2026 | 447.09 | 447.71 | 435.50 | 444.53 | 444.53 | -1.00% | 1,678,445 |
| Oct 2, 2026 | 430.80 | 451.86 | 427.03 | 449.04 | 449.04 | 8.00% | 3,401,925 |
| Oct 1, 2026 | 402.90 | 419.37 | 401.24 | 415.79 | 415.79 | 3.71% | 1,709,169 |
| Sep 30, 2026 | 402.60 | 404.46 | 393.14 | 400.91 | 400.91 | -0.52% | 1,524,169 |
| Sep 29, 2026 | 410.85 | 415.61 | 399.84 | 403.02 | 403.02 | 0.43% | 2,568,728 |
| Sep 28, 2026 | 394.70 | 401.97 | 383.50 | 401.30 | 401.30 | 0.73% | 2,027,704 |
| Sep 25, 2026 | 394.85 | 400.46 | 388.38 | 398.38 | 398.38 | 2.75% | 1,606,820 |
| Sep 24, 2026 | 383.08 | 388.54 | 376.02 | 387.70 | 387.70 | -0.37% | 1,333,468 |
| Sep 23, 2026 | 398.00 | 398.68 | 378.31 | 389.14 | 389.14 | -2.40% | 2,011,537 |
| Sep 22, 2026 | 373.00 | 399.40 | 370.45 | 398.69 | 398.69 | 4.49% | 2,318,879 |
| Sep 21, 2026 | 378.71 | 384.99 | 370.88 | 381.54 | 381.54 | 2.71% | 3,394,386 |
| Sep 18, 2026 | 359.24 | 371.71 | 356.97 | 371.47 | 371.47 | 5.19% | 4,292,952 |
| Sep 17, 2026 | 352.86 | 360.26 | 350.00 | 353.13 | 353.13 | 3.51% | 2,598,550 |
| Sep 16, 2026 | 340.51 | 347.00 | 336.57 | 341.15 | 341.15 | 2.49% | 2,550,159 |
| Sep 15, 2026 | 337.83 | 338.48 | 326.37 | 332.85 | 332.85 | 1.11% | 2,692,589 |
| Sep 14, 2026 | 347.12 | 349.46 | 328.59 | 329.20 | 329.20 | -13.30% | 4,889,699 |
| Sep 11, 2026 | 380.37 | 385.68 | 374.38 | 379.72 | 379.72 | 2.57% | 2,394,327 |
| Sep 10, 2026 | 372.21 | 375.00 | 365.82 | 370.19 | 370.19 | -3.52% | 2,312,767 |
| Sep 9, 2026 | 368.48 | 384.45 | 368.48 | 383.69 | 383.69 | 3.13% | 2,286,055 |
| Sep 8, 2026 | 365.03 | 377.76 | 364.42 | 372.06 | 372.06 | 4.21% | 2,791,345 |
| Sep 4, 2026 | 345.89 | 359.00 | 342.29 | 357.03 | 357.03 | 5.49% | 2,247,433 |
| Sep 3, 2026 | 332.86 | 341.61 | 326.00 | 338.59 | 338.46 | -0.89% | 1,692,777 |
| Sep 2, 2026 | 334.01 | 347.00 | 330.12 | 341.62 | 341.49 | 1.84% | 1,817,055 |
| Sep 1, 2026 | 341.30 | 342.31 | 328.10 | 335.46 | 335.33 | -4.11% | 2,586,783 |
| Aug 31, 2026 | 357.36 | 361.83 | 347.81 | 349.83 | 349.70 | -1.45% | 1,904,598 |
| Aug 28, 2026 | 368.54 | 370.58 | 353.25 | 354.97 | 354.83 | -4.59% | 2,400,963 |
| Aug 27, 2026 | 370.20 | 372.68 | 360.44 | 372.06 | 371.92 | 2.47% | 2,447,395 |
| Aug 26, 2026 | 366.17 | 366.52 | 357.03 | 363.10 | 362.96 | -0.91% | 2,225,067 |
| Aug 25, 2026 | 374.28 | 378.75 | 360.65 | 366.43 | 366.29 | 0.42% | 1,680,018 |
| Aug 24, 2026 | 360.12 | 367.82 | 349.01 | 364.90 | 364.76 | -2.88% | 2,663,294 |
| Aug 21, 2026 | 381.80 | 385.57 | 365.01 | 375.74 | 375.60 | -1.93% | 1,910,901 |
| Aug 20, 2026 | 377.34 | 385.93 | 372.90 | 383.15 | 383.00 | 0.92% | 1,995,949 |
| Aug 19, 2026 | 405.19 | 405.19 | 374.01 | 379.65 | 379.50 | -6.09% | 2,765,150 |
| Aug 18, 2026 | 419.15 | 424.76 | 392.18 | 404.29 | 404.13 | -8.77% | 4,293,754 |
| Aug 17, 2026 | 425.00 | 444.17 | 420.22 | 443.14 | 442.97 | 5.81% | 3,107,360 |
| Aug 14, 2026 | 410.51 | 419.00 | 398.42 | 418.79 | 418.63 | 2.01% | 1,842,643 |
| Aug 13, 2026 | 399.40 | 422.32 | 398.00 | 410.52 | 410.36 | 1.93% | 1,880,297 |
| Aug 12, 2026 | 396.50 | 408.55 | 393.16 | 402.74 | 402.59 | 6.11% | 2,957,077 |
| Aug 11, 2026 | 373.79 | 387.81 | 371.20 | 379.56 | 379.41 | 3.96% | 1,810,680 |
| Aug 10, 2026 | 386.66 | 387.00 | 364.26 | 365.10 | 364.96 | -3.75% | 2,377,231 |
| Aug 7, 2026 | 397.60 | 397.60 | 372.80 | 379.31 | 379.16 | -1.45% | 3,737,946 |
| Aug 6, 2026 | 382.01 | 396.59 | 370.00 | 384.89 | 384.74 | -1.16% | 2,629,616 |
| Aug 5, 2026 | 402.47 | 409.40 | 386.08 | 389.39 | 389.24 | -3.51% | 3,183,616 |
| Aug 4, 2026 | 388.61 | 409.72 | 382.87 | 403.56 | 403.41 | 10.32% | 4,144,088 |
| Aug 3, 2026 | 359.92 | 370.40 | 349.31 | 365.80 | 365.66 | -0.51% | 2,698,676 |
| Jul 31, 2026 | 382.99 | 392.00 | 362.23 | 367.69 | 367.55 | 0.60% | 3,771,504 |