The highest closing price for Quantum (QMCO) last month was $10.03, on May 6. It was up 35.8% for the month. The latest price is $12.70.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
May 29 2026 | $9.31 | $9.92 | $9.05 | $9.71 | 520,200 |
May 28 2026 | $8.65 | $9.54 | $8.61 | $9.32 | 607,800 |
May 27 2026 | $8.68 | $8.96 | $8.33 | $8.82 | 399,700 |
May 26 2026 | $9.08 | $9.11 | $8.45 | $8.73 | 565,700 |
May 22 2026 | $9.40 | $10.18 | $9.00 | $9.05 | 1,860,000 |
May 21 2026 | $8.33 | $9.65 | $8.28 | $9.41 | 1,303,500 |
May 20 2026 | $7.78 | $8.36 | $7.78 | $8.16 | 319,000 |
May 19 2026 | $7.80 | $7.96 | $7.46 | $7.71 | 385,900 |
May 18 2026 | $8.29 | $8.44 | $7.65 | $7.98 | 471,700 |
May 15 2026 | $8.39 | $8.57 | $8.10 | $8.35 | 402,000 |
May 14 2026 | $8.70 | $9.00 | $8.20 | $8.80 | 469,500 |
May 13 2026 | $8.94 | $9.08 | $8.57 | $8.81 | 380,200 |
May 12 2026 | $9.58 | $9.83 | $8.49 | $8.94 | 678,300 |
May 11 2026 | $9.62 | $10.26 | $9.17 | $9.78 | 934,200 |
May 08 2026 | $9.29 | $9.86 | $8.85 | $9.62 | 504,800 |
May 07 2026 | $9.70 | $9.72 | $8.76 | $9.13 | 881,800 |
May 06 2026 | $9.01 | $10.64 | $9.00 | $10.03 | 2,269,700 |
May 05 2026 | $7.60 | $8.30 | $7.41 | $8.27 | 765,300 |
May 04 2026 | $7.46 | $7.67 | $7.16 | $7.56 | 342,200 |
May 01 2026 | $7.15 | $7.59 | $7.15 | $7.52 | 359,100 |
Daily pricing data for Quantum dates back to 12/29/1982, and may be incomplete.