Test Research, Inc. (TPE:3030)
340.50
+8.00 (2.41%)
Jun 18, 2026, 1:30 PM CST
Test Research Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Jun 18, 2026 | 333.50 | 344.00 | 333.00 | 340.50 | 340.50 | 2.41% | 1,669,989 |
| Jun 17, 2026 | 325.00 | 336.00 | 322.50 | 332.50 | 332.50 | 0.61% | 1,135,806 |
| Jun 16, 2026 | 341.00 | 344.50 | 330.00 | 330.50 | 330.50 | -1.64% | 1,770,515 |
| Jun 15, 2026 | 327.00 | 346.50 | 326.00 | 336.00 | 336.00 | 4.19% | 2,782,443 |
| Jun 12, 2026 | 336.50 | 336.50 | 318.00 | 322.50 | 322.50 | 3.04% | 1,785,557 |
| Jun 11, 2026 | 318.00 | 326.00 | 293.00 | 313.00 | 313.00 | -0.95% | 4,469,684 |
| Jun 10, 2026 | 340.00 | 345.00 | 323.00 | 323.00 | 316.00 | -6.10% | 3,513,979 |
| Jun 9, 2026 | 352.00 | 352.00 | 344.00 | 344.00 | 336.54 | -1.99% | 2,693,718 |
| Jun 8, 2026 | 330.00 | 357.00 | 330.00 | 351.00 | 343.39 | -4.10% | 3,299,550 |
| Jun 5, 2026 | 365.00 | 367.50 | 347.50 | 366.00 | 358.07 | 0.27% | 2,982,664 |
| Jun 4, 2026 | 370.00 | 377.00 | 363.00 | 365.00 | 357.09 | -2.01% | 2,882,835 |
| Jun 3, 2026 | 373.00 | 376.50 | 363.50 | 372.50 | 364.43 | 0.40% | 3,703,907 |
| Jun 2, 2026 | 403.00 | 403.00 | 368.00 | 371.00 | 362.96 | -9.07% | 8,973,271 |
| Jun 1, 2026 | 415.00 | 417.50 | 401.00 | 408.00 | 399.16 | 0.74% | 3,596,224 |
| May 29, 2026 | 428.00 | 428.00 | 405.00 | 405.00 | 396.22 | -0.98% | 4,977,039 |
| May 28, 2026 | 410.00 | 433.50 | 405.50 | 409.00 | 400.14 | 2.38% | 7,057,925 |
| May 27, 2026 | 415.50 | 420.00 | 395.00 | 399.50 | 390.84 | -2.44% | 5,881,676 |
| May 26, 2026 | 424.00 | 426.00 | 405.00 | 409.50 | 400.63 | -2.03% | 4,162,702 |
| May 25, 2026 | 446.00 | 457.50 | 415.50 | 418.00 | 408.94 | -0.36% | 8,265,283 |
| May 22, 2026 | 395.00 | 419.50 | 395.00 | 419.50 | 410.41 | 9.96% | 5,603,787 |
| May 21, 2026 | 362.00 | 381.50 | 361.00 | 381.50 | 373.23 | 9.94% | 2,005,317 |
| May 20, 2026 | 349.00 | 354.00 | 338.00 | 347.00 | 339.48 | -3.88% | 2,337,793 |
| May 19, 2026 | 386.50 | 386.50 | 348.50 | 361.00 | 353.18 | -6.72% | 2,622,513 |
| May 18, 2026 | 385.50 | 388.00 | 377.50 | 387.00 | 378.61 | -2.03% | 1,071,328 |
| May 15, 2026 | 408.50 | 412.00 | 395.00 | 395.00 | 386.44 | -1.86% | 1,502,888 |
| May 14, 2026 | 419.00 | 419.00 | 402.50 | 402.50 | 393.78 | -2.78% | 1,146,030 |
| May 13, 2026 | 399.00 | 416.00 | 395.00 | 414.00 | 405.03 | 1.47% | 1,411,241 |
| May 12, 2026 | 399.50 | 410.00 | 391.00 | 408.00 | 399.16 | 2.77% | 1,406,295 |
| May 11, 2026 | 397.50 | 398.00 | 386.00 | 397.00 | 388.40 | 1.93% | 1,706,534 |
| May 8, 2026 | 410.00 | 421.00 | 383.00 | 389.50 | 381.06 | -6.71% | 3,349,873 |
| May 7, 2026 | 420.00 | 430.50 | 410.00 | 417.50 | 408.45 | 1.09% | 6,278,649 |
| May 6, 2026 | 426.00 | 435.50 | 400.00 | 413.00 | 404.05 | -0.24% | 13,359,470 |
| May 5, 2026 | 398.00 | 414.00 | 398.00 | 414.00 | 405.03 | 9.96% | 5,957,365 |
| May 4, 2026 | 347.00 | 376.50 | 345.00 | 376.50 | 368.34 | 9.93% | 9,600,169 |
| Apr 30, 2026 | 356.00 | 358.00 | 339.50 | 342.50 | 335.08 | -0.58% | 6,994,340 |
| Apr 29, 2026 | 331.00 | 345.00 | 323.00 | 344.50 | 337.03 | 5.19% | 6,718,600 |
| Apr 28, 2026 | 314.50 | 340.00 | 309.00 | 327.50 | 320.40 | 4.63% | 6,146,876 |
| Apr 27, 2026 | 320.00 | 321.50 | 302.00 | 313.00 | 306.22 | -0.79% | 4,952,679 |
| Apr 24, 2026 | 323.00 | 324.50 | 310.00 | 315.50 | 308.66 | -2.17% | 7,115,951 |
| Apr 23, 2026 | 360.50 | 367.50 | 322.50 | 322.50 | 315.51 | -9.92% | 12,275,590 |
| Apr 22, 2026 | 345.00 | 374.50 | 342.00 | 358.00 | 350.24 | 4.99% | 9,221,467 |
| Apr 21, 2026 | 344.00 | 348.00 | 325.00 | 341.00 | 333.61 | -0.29% | 8,737,148 |
| Apr 20, 2026 | 347.00 | 357.50 | 336.50 | 342.00 | 334.59 | 1.03% | 11,324,920 |
| Apr 17, 2026 | 309.00 | 338.50 | 308.50 | 338.50 | 331.16 | 9.90% | 7,021,696 |
| Apr 16, 2026 | 309.00 | 310.50 | 303.50 | 308.00 | 301.33 | - | 3,301,971 |
| Apr 15, 2026 | 303.00 | 314.50 | 300.00 | 308.00 | 301.33 | 1.65% | 5,788,121 |
| Apr 14, 2026 | 318.00 | 318.00 | 297.00 | 303.00 | 296.43 | -2.42% | 7,665,560 |
| Apr 13, 2026 | 308.00 | 324.00 | 301.00 | 310.50 | 303.77 | 2.48% | 15,103,500 |
| Apr 10, 2026 | 290.00 | 303.00 | 284.50 | 303.00 | 296.43 | 9.98% | 15,159,210 |
| Apr 9, 2026 | 275.00 | 281.00 | 268.00 | 275.50 | 269.53 | 1.10% | 7,709,562 |