Ionics, Inc. (PSE:ION)
1.140
+0.010 (0.88%)
At close: May 19, 2026
Ionics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| May 18, 2026 | 1.09 | 1.13 | 1.07 | 1.13 | 1.13 | 3.67% | 1,847,000 |
| May 15, 2026 | 1.11 | 1.14 | 1.08 | 1.09 | 1.09 | 6.86% | 7,630,000 |
| May 14, 2026 | 1.01 | 1.03 | 0.98 | 1.02 | 1.02 | 2.00% | 964,000 |
| May 13, 2026 | 1.00 | 1.02 | 0.98 | 1.00 | 1.00 | -0.99% | 977,000 |
| May 12, 2026 | 1.02 | 1.03 | 1.01 | 1.01 | 1.01 | -0.98% | 830,000 |
| May 11, 2026 | 1.04 | 1.04 | 1.01 | 1.02 | 1.02 | -1.92% | 860,000 |
| May 8, 2026 | 1.05 | 1.05 | 1.04 | 1.04 | 1.04 | -1.89% | 66,000 |
| May 7, 2026 | 1.02 | 1.06 | 1.01 | 1.06 | 1.06 | 3.92% | 831,000 |
| May 6, 2026 | 1.06 | 1.06 | 1.01 | 1.02 | 1.02 | -3.77% | 984,000 |
| May 5, 2026 | 1.04 | 1.07 | 1.03 | 1.06 | 1.06 | 1.92% | 706,000 |
| May 4, 2026 | 1.03 | 1.04 | 1.01 | 1.04 | 1.04 | 0.97% | 382,000 |
| Apr 30, 2026 | 1.03 | 1.03 | 1.02 | 1.03 | 1.03 | - | 141,000 |
| Apr 29, 2026 | 1.04 | 1.04 | 1.01 | 1.03 | 1.03 | -0.96% | 372,000 |
| Apr 28, 2026 | 1.05 | 1.05 | 1.02 | 1.04 | 1.04 | -0.95% | 430,000 |
| Apr 27, 2026 | 1.05 | 1.05 | 1.02 | 1.05 | 1.05 | - | 310,000 |
| Apr 24, 2026 | 1.06 | 1.06 | 1.04 | 1.05 | 1.05 | -0.94% | 226,000 |
| Apr 23, 2026 | 1.04 | 1.06 | 1.03 | 1.06 | 1.06 | 1.92% | 786,000 |
| Apr 22, 2026 | 1.05 | 1.07 | 1.03 | 1.04 | 1.04 | -0.95% | 1,008,000 |
| Apr 21, 2026 | 1.08 | 1.09 | 1.04 | 1.05 | 1.05 | -2.78% | 1,119,000 |
| Apr 20, 2026 | 1.05 | 1.10 | 1.05 | 1.08 | 1.08 | 3.85% | 3,411,000 |
| Apr 17, 2026 | 1.04 | 1.05 | 1.03 | 1.04 | 1.04 | - | 118,000 |
| Apr 16, 2026 | 1.05 | 1.05 | 1.04 | 1.04 | 1.04 | - | 358,000 |
| Apr 15, 2026 | 1.04 | 1.06 | 1.04 | 1.04 | 1.04 | - | 99,000 |
| Apr 14, 2026 | 1.03 | 1.05 | 1.03 | 1.04 | 1.04 | 0.97% | 154,000 |
| Apr 13, 2026 | 1.05 | 1.07 | 1.03 | 1.03 | 1.03 | -1.90% | 225,000 |
| Apr 10, 2026 | 1.05 | 1.05 | 1.04 | 1.05 | 1.05 | 0.96% | 168,000 |
| Apr 8, 2026 | 1.05 | 1.06 | 1.04 | 1.04 | 1.04 | - | 95,000 |
| Apr 7, 2026 | 1.06 | 1.06 | 1.03 | 1.04 | 1.04 | -1.89% | 287,000 |
| Apr 6, 2026 | 1.06 | 1.07 | 1.06 | 1.06 | 1.06 | -0.93% | 170,000 |
| Apr 1, 2026 | 1.05 | 1.07 | 1.03 | 1.07 | 1.07 | 1.90% | 510,000 |
| Mar 31, 2026 | 1.04 | 1.05 | 1.02 | 1.05 | 1.05 | 0.96% | 220,000 |
| Mar 30, 2026 | 1.05 | 1.05 | 1.03 | 1.04 | 1.04 | -0.95% | 99,000 |
| Mar 27, 2026 | 1.04 | 1.05 | 1.03 | 1.05 | 1.05 | 1.94% | 150,000 |
| Mar 26, 2026 | 1.04 | 1.08 | 1.03 | 1.03 | 1.03 | -0.96% | 117,000 |
| Mar 25, 2026 | 1.04 | 1.05 | 1.04 | 1.04 | 1.04 | - | 176,000 |
| Mar 24, 2026 | 1.03 | 1.06 | 1.02 | 1.04 | 1.04 | 0.97% | 218,000 |
| Mar 23, 2026 | 1.07 | 1.07 | 1.03 | 1.03 | 1.03 | -4.63% | 831,000 |
| Mar 19, 2026 | 1.07 | 1.10 | 1.06 | 1.08 | 1.08 | - | 453,000 |
| Mar 18, 2026 | 1.11 | 1.11 | 1.07 | 1.08 | 1.08 | -2.70% | 1,062,000 |
| Mar 17, 2026 | 1.13 | 1.13 | 1.10 | 1.11 | 1.11 | -1.77% | 401,000 |
| Mar 16, 2026 | 1.16 | 1.16 | 1.10 | 1.13 | 1.13 | -2.59% | 702,000 |
| Mar 13, 2026 | 1.17 | 1.18 | 1.14 | 1.16 | 1.16 | -1.69% | 473,000 |
| Mar 12, 2026 | 1.18 | 1.18 | 1.16 | 1.18 | 1.18 | - | 474,000 |
| Mar 11, 2026 | 1.18 | 1.18 | 1.16 | 1.18 | 1.18 | - | 818,000 |
| Mar 10, 2026 | 1.13 | 1.18 | 1.13 | 1.18 | 1.18 | 7.27% | 2,377,000 |
| Mar 9, 2026 | 1.14 | 1.15 | 1.09 | 1.10 | 1.10 | -4.35% | 1,759,000 |
| Mar 6, 2026 | 1.15 | 1.16 | 1.13 | 1.15 | 1.15 | - | 240,000 |
| Mar 5, 2026 | 1.15 | 1.16 | 1.11 | 1.15 | 1.15 | - | 666,000 |
| Mar 4, 2026 | 1.16 | 1.17 | 1.13 | 1.15 | 1.15 | - | 1,272,000 |
| Mar 3, 2026 | 1.14 | 1.16 | 1.12 | 1.15 | 1.15 | 2.68% | 1,241,000 |