
Onterris Inc. (ONT)
Showing Closing Date Range from Sep 1 to Sep 29, 2026 compared to Sep 1 to Sep 29, 2025.
Compare Last 28 Days Same Dates of Previous Year
Investor Relations:investors.montrose-env.com
Current Period Close
$14.00
Sep 01, 2026 - Sep 29, 2026
Previous Year Close
$27.70
Sep 01, 2025 - Sep 29, 2025
Net Comparison Delta
$-13.70 (-49.46%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(18 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Sep 25, 2026 | $14.00 | Sep 25, 2025 | $27.90 | -49.82% |
| Sep 24, 2026 | $16.82 | Sep 24, 2025 | $27.93 | -39.78% |
| Sep 23, 2026 | $17.02 | Sep 23, 2025 | $27.85 | -38.89% |
| Sep 22, 2026 | $16.94 | Sep 22, 2025 | $28.91 | -41.40% |
| Sep 21, 2026 | $17.48 | Sep 19, 2025 | $28.57 | -38.82% |
| Sep 18, 2026 | $18.11 | Sep 18, 2025 | $29.43 | -38.46% |
| Sep 17, 2026 | $17.58 | Sep 17, 2025 | $29.33 | -40.06% |
| Sep 16, 2026 | $17.53 | Sep 16, 2025 | $30.50 | -42.52% |
| Sep 15, 2026 | $17.80 | Sep 15, 2025 | $30.65 | -41.92% |
| Sep 14, 2026 | $18.86 | Sep 12, 2025 | $29.81 | -36.73% |
| Sep 11, 2026 | $18.33 | Sep 11, 2025 | $30.00 | -38.90% |
| Sep 10, 2026 | $18.16 | Sep 10, 2025 | $29.02 | -37.42% |
| Sep 09, 2026 | $17.82 | Sep 09, 2025 | $28.52 | -37.52% |
| Sep 08, 2026 | $17.91 | Sep 08, 2025 | $29.20 | -38.66% |
| Sep 04, 2026 | $17.85 | Sep 05, 2025 | $30.41 | -41.30% |
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