ClearSign Technologies Corporation Common Stock (DE) (CLIR)
Showing Closing Date Range from Apr 19 to Oct 16, 2026 compared to Oct 20, 2025 to Apr 18, 2026.
Compare Last 6 Months with Previous Period
Investor Relations:ir.clearsign.com
Current Period Close
$2.40
Apr 19, 2026 - Oct 16, 2026
Previous Period Close
$5.45
Oct 20, 2025 - Apr 18, 2026
Net Comparison Delta
$-3.05 (-55.96%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(123 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 16, 2026 | $2.40 | Apr 16, 2026 | $5.33 | -54.97% |
| Oct 15, 2026 | $2.45 | Apr 15, 2026 | $5.84 | -58.05% |
| Oct 14, 2026 | $2.64 | Apr 14, 2026 | $5.38 | -51.02% |
| Oct 13, 2026 | $2.88 | Apr 13, 2026 | $5.39 | -46.57% |
| Oct 12, 2026 | $2.96 | Apr 10, 2026 | $5.29 | -44.05% |
| Oct 09, 2026 | $3.21 | Apr 09, 2026 | $6.18 | -48.06% |
| Oct 08, 2026 | $3.11 | Apr 08, 2026 | $6.47 | -51.93% |
| Oct 07, 2026 | $3.30 | Apr 07, 2026 | $6.15 | -46.34% |
| Oct 06, 2026 | $3.30 | Apr 06, 2026 | $6.94 | -52.45% |
| Oct 05, 2026 | $3.30 | Apr 02, 2026 | $4.83 | -31.68% |
| Oct 02, 2026 | $3.51 | Apr 01, 2026 | $4.71 | -25.48% |
| Sep 30, 2026 | $3.55 | Mar 31, 2026 | $4.36 | -18.58% |
| Sep 25, 2026 | $3.45 | Mar 30, 2026 | $3.85 | -10.39% |
| Sep 24, 2026 | $3.46 | Mar 27, 2026 | $3.74 | -7.49% |
| Sep 23, 2026 | $3.54 | Mar 26, 2026 | $3.72 | -4.84% |
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