The highest closing price for Quantum (QMCO) all-time was $7,860, on May 5, 1997. The latest price is $12.70.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
June 2026 | $9.55 | $18.48 | $9.36 | $12.70 | 15,819,187 |
May 2026 | $7.15 | $10.64 | $7.15 | $9.71 | 14,433,871 |
April 2026 | $4.85 | $7.66 | $4.81 | $7.14 | 9,090,890 |
March 2026 | $5.13 | $5.94 | $4.19 | $4.75 | 8,995,932 |
February 2026 | $6.12 | $6.47 | $4.89 | $5.48 | 11,365,527 |
January 2026 | $6.72 | $8.24 | $6.11 | $6.20 | 11,485,374 |
December 2025 | $7.52 | $10.01 | $6.22 | $6.45 | 11,160,679 |
November 2025 | $9.40 | $9.49 | $6.55 | $7.85 | 13,768,782 |
October 2025 | $9.81 | $15.33 | $8.90 | $9.44 | 49,584,859 |
September 2025 | $7.19 | $12.83 | $7.01 | $9.92 | 59,497,527 |
August 2025 | $7.74 | $8.39 | $6.51 | $7.43 | 10,446,817 |
July 2025 | $8.67 | $9.82 | $7.83 | $8.01 | 17,482,492 |
June 2025 | $11.77 | $12.53 | $7.25 | $9.97 | 34,043,516 |
May 2025 | $11.26 | $14.40 | $10.10 | $11.87 | 56,711,414 |
April 2025 | $14.73 | $15.30 | $9.59 | $10.80 | 12,317,182 |
March 2025 | $11.88 | $24.40 | $10.11 | $14.38 | 41,273,091 |
February 2025 | $21.05 | $25.46 | $11.21 | $11.79 | 22,054,613 |
January 2025 | $54.45 | $60.88 | $19.31 | $22.40 | 36,068,447 |
December 2024 | $17.33 | $90.64 | $11.05 | $53.92 | 89,989,768 |
November 2024 | $4.57 | $33.00 | $2.88 | $17.41 | 94,653,530 |
October 2024 | $3.47 | $5.85 | $3.22 | $4.31 | 960,069 |
September 2024 | $3.01 | $3.78 | $2.22 | $3.50 | 798,058 |
August 2024 | $7.51 | $7.69 | $2.95 | $3.08 | 23,213,685 |
July 2024 | $8.09 | $10.03 | $7.50 | $7.51 | 5,855,656 |
June 2024 | $9.55 | $17.00 | $6.38 | $8.18 | 16,140,791 |
Daily pricing data for Quantum dates back to 12/29/1982, and may be incomplete.