ClearSign Technologies Corporation Common Stock (DE) (CLIR)
Showing Closing Date Range from Oct 22, 2025 to Oct 22, 2026 compared to Oct 21, 2024 to Oct 21, 2025.
Compare Last 12 Months with Previous Period
Investor Relations:ir.clearsign.com
Current Period Close
$2.45
Oct 22, 2025 - Oct 22, 2026
Previous Period Close
$8.60
Oct 21, 2024 - Oct 21, 2025
Net Comparison Delta
$-6.15 (-71.51%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(249 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 22, 2026 | $2.45 | Oct 17, 2025 | $8.50 | -71.18% |
| Oct 21, 2026 | $2.44 | Oct 16, 2025 | $8.70 | -71.95% |
| Oct 20, 2026 | $2.49 | Oct 15, 2025 | $9.70 | -74.33% |
| Oct 19, 2026 | $2.34 | Oct 14, 2025 | $10.00 | -76.60% |
| Oct 16, 2026 | $2.40 | Oct 13, 2025 | $9.20 | -73.91% |
| Oct 15, 2026 | $2.45 | Oct 10, 2025 | $8.60 | -71.51% |
| Oct 14, 2026 | $2.64 | Oct 09, 2025 | $9.20 | -71.36% |
| Oct 13, 2026 | $2.88 | Oct 08, 2025 | $9.80 | -70.61% |
| Oct 12, 2026 | $2.96 | Oct 07, 2025 | $9.60 | -69.17% |
| Oct 09, 2026 | $3.21 | Oct 06, 2025 | $10.60 | -69.72% |
| Oct 08, 2026 | $3.11 | Oct 03, 2025 | $8.60 | -63.84% |
| Oct 07, 2026 | $3.30 | Oct 02, 2025 | $8.40 | -60.71% |
| Oct 06, 2026 | $3.30 | Oct 01, 2025 | $7.90 | -58.23% |
| Oct 05, 2026 | $3.30 | Sep 30, 2025 | $7.70 | -57.14% |
| Oct 02, 2026 | $3.51 | Sep 29, 2025 | $8.00 | -56.13% |
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