Quest Diagnostics (DGX) went public on December 17, 1996, when it opened at a split-adjusted price of $2.65.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
May 2026 | $194.50 | $196.34 | $186.23 | $190.85 | 6,342,716 |
April 2026 | $194.66 | $209.79 | $187.50 | $194.20 | 22,129,850 |
March 2026 | $211.60 | $212.34 | $191.90 | $195.13 | 18,689,085 |
February 2026 | $185.21 | $212.58 | $181.57 | $210.99 | 22,181,977 |
January 2026 | $171.78 | $190.24 | $169.66 | $186.22 | 20,033,113 |
December 2025 | $186.83 | $187.71 | $171.86 | $171.99 | 20,468,197 |
November 2025 | $174.22 | $192.05 | $172.82 | $187.51 | 22,046,452 |
October 2025 | $188.16 | $195.80 | $172.79 | $174.39 | 26,628,695 |
September 2025 | $178.51 | $188.96 | $174.70 | $188.06 | 14,493,234 |
August 2025 | $166.01 | $183.16 | $165.74 | $179.24 | 17,557,302 |
July 2025 | $176.19 | $178.50 | $162.47 | $165.19 | 29,448,980 |
June 2025 | $169.46 | $179.15 | $168.02 | $176.45 | 16,264,778 |
May 2025 | $173.27 | $176.81 | $165.48 | $170.27 | 25,094,818 |
April 2025 | $165.15 | $175.99 | $154.42 | $175.07 | 35,005,038 |
March 2025 | $169.74 | $174.85 | $159.34 | $165.40 | 25,594,810 |
February 2025 | $158.20 | $172.47 | $156.41 | $169.01 | 20,149,912 |
January 2025 | $147.82 | $163.32 | $145.36 | $159.43 | 21,041,998 |
December 2024 | $158.04 | $158.51 | $145.01 | $146.75 | 16,153,613 |
November 2024 | $151.67 | $160.82 | $147.92 | $158.23 | 17,802,030 |
October 2024 | $149.85 | $156.57 | $142.19 | $150.61 | 17,966,024 |
September 2024 | $151.97 | $154.25 | $144.73 | $150.28 | 14,764,452 |
August 2024 | $138.28 | $152.30 | $138.28 | $151.94 | 15,897,023 |
July 2024 | $132.40 | $145.76 | $131.23 | $137.74 | 22,667,024 |
June 2024 | $135.68 | $138.48 | $130.43 | $131.79 | 14,134,514 |
May 2024 | $133.16 | $140.20 | $130.23 | $136.69 | 19,394,866 |