SPRB (Spruce Biosciences, Inc. Common Stock)
Historical IV Rank & Volatility Regime
IV Rank measures where SPRB's current 30-day implied volatility sits in its trailing 90-day distribution (0% = lowest in 90 days, 100% = highest). It's the most reliable signal for whether options on SPRB are priced rich or cheap relative to its own recent regime.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
SPRB IV Rank Summary
Current
0%
Compressed — premium buying regime
30-Day Avg
62%
60-Day Avg
69%
90-Day Avg
54%
90-Day Low
0%
90-Day High
100%
IV Rank is bounded 0%–100% by construction. Sustained levels above 75% historically
precede mean reversion in SPRB's implied vol; sustained sub-25% readings
often coincide with low-realized regimes ahead of catalyst events. See the
Vol Arb Screener for symbols where current IV
rank diverges most from realized volatility.
SPRB IV Rank — Last 90 Trading Days
| Date | IV Rank | Avg IV |
|---|---|---|
| 20251219 | 0% | 0.0% |
| 20251218 | 0% | 0.0% |
| 20251217 | 0% | 0.0% |
| 20251216 | 0% | 0.0% |
| 20251215 | 0% | 0.0% |
| 20251212 | 0% | 0.0% |
| 20251211 | 0% | 0.0% |
| 20251210 | 0% | 0.0% |
| 20251209 | 0% | 0.0% |
| 20251208 | 55% | 9.9% |
| 20251205 | 48% | 8.8% |
| 20251204 | 47% | 8.6% |
| 20251203 | 100% | 18.1% |
| 20251202 | 100% | 17.6% |
| 20251201 | 100% | 16.7% |
| 20251128 | 100% | 15.8% |
| 20251126 | 55% | 8.4% |
| 20251125 | 100% | 15.2% |
| 20251124 | 100% | 14.6% |
| 20251121 | 96% | 13.9% |
| 20251120 | 60% | 8.7% |
| 20251119 | 100% | 14.4% |
| 20251118 | 100% | 13.4% |
| 20251117 | 100% | 13.1% |
| 20251114 | 100% | 12.5% |
| 20251113 | 100% | 12.4% |
| 20251112 | 100% | 12.5% |
| 20251111 | 100% | 12.5% |
| 20251110 | 100% | 11.8% |
| 20251107 | 99% | 11.8% |
| 20251106 | 96% | 11.4% |
| 20251105 | 96% | 11.4% |
| 20251104 | 100% | 11.9% |
| 20251103 | 98% | 11.0% |
| 20251031 | 52% | 5.8% |
| 20251030 | 94% | 10.6% |
| 20251029 | 93% | 10.4% |
| 20251028 | 88% | 9.9% |
| 20251027 | 96% | 10.7% |
| 20251024 | 89% | 10.0% |
| 20251023 | 89% | 9.9% |
| 20251022 | 86% | 9.6% |
| 20251021 | 41% | 4.6% |
| 20251020 | 81% | 9.0% |
| 20251017 | 90% | 10.1% |
| 20251016 | 38% | 4.3% |
| 20251015 | 40% | 4.4% |
| 20251014 | 88% | 9.8% |
| 20251013 | 39% | 4.4% |
| 20251010 | 76% | 8.5% |
| 20251009 | 43% | 4.9% |
| 20251008 | 38% | 4.3% |
| 20251007 | 80% | 8.9% |
| 20251006 | 100% | 11.2% |
| 20251003 | 100% | 10.1% |
| 20251002 | 100% | 10.1% |
| 20251001 | 100% | 10.0% |
| 20250930 | 56% | 5.1% |
| 20250929 | 56% | 5.1% |
| 20250926 | 54% | 4.9% |
| 20250925 | 53% | 4.9% |
| 20250924 | 53% | 4.9% |
| 20250923 | 53% | 4.9% |
| 20250922 | 53% | 4.8% |
| 20250919 | 0% | 0.0% |
| 20250918 | 0% | 0.0% |
| 20250917 | 0% | 0.0% |
| 20250916 | 0% | 0.0% |
| 20250429 | 0% | 0.0% |
| 20250428 | 0% | 0.0% |
| 20250425 | 0% | 0.0% |
| 20250424 | 0% | 0.0% |
| 20250423 | 95% | 8.7% |
| 20250422 | 0% | 0.0% |
| 20250421 | 0% | 0.0% |
| 20250417 | 0% | 0.0% |
| 20250415 | 0% | 0.0% |
| 20250414 | 0% | 0.0% |
| 20250411 | 0% | 0.0% |
| 20250410 | 69% | 6.3% |
| 20250409 | 0% | 0.0% |
| 20250408 | 0% | 0.0% |
| 20250407 | 76% | 7.0% |
| 20250404 | 0% | 0.0% |
| 20250403 | 0% | 0.0% |
| 20250402 | 0% | 0.0% |
| 20250401 | 0% | 0.0% |
| 20250331 | 65% | 5.9% |
| 20250328 | 89% | 8.1% |
| 20250327 | 61% | 5.6% |