GRO (Brazil Potash Corp.)
Historical IV Rank & Volatility Regime
IV Rank measures where GRO'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 GRO 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.
GRO IV Rank Summary
Current
1%
Compressed — premium buying regime
30-Day Avg
24%
60-Day Avg
—
90-Day Avg
43%
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 GRO'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.
GRO IV Rank — Last 90 Trading Days
| Date | IV Rank | Avg IV |
|---|---|---|
| 20260925 | 1% | 0.7% |
| 20260924 | 0% | 0.7% |
| 20260923 | 12% | 1.1% |
| 20260922 | 18% | 1.3% |
| 20260921 | 1% | 0.8% |
| 20260918 | 0% | 0.8% |
| 20260917 | 33% | 1.8% |
| 20260916 | 7% | 1.1% |
| 20260915 | 6% | 1.1% |
| 20260914 | 32% | 1.7% |
| 20260911 | 45% | 1.5% |
| 20260910 | 28% | 0.9% |
| 20260909 | 0% | 0.0% |
| 20260908 | 36% | 1.2% |
| 20260904 | 57% | 1.9% |
| 20260903 | 0% | 0.0% |
| 20260902 | 58% | 2.4% |
| 20260901 | 44% | 2.1% |
| 20260831 | 7% | 1.3% |
| 20260828 | 18% | 1.6% |
| 20260827 | 29% | 1.8% |
| 20260826 | 10% | 1.4% |
| 20260825 | 18% | 1.6% |
| 20260824 | 25% | 1.7% |
| 20260821 | 0% | 1.2% |
| 20260820 | 41% | 2.2% |
| 20260819 | 40% | 2.1% |
| 20260818 | 51% | 2.4% |
| 20260817 | 62% | 2.6% |
| 20260814 | 52% | 2.4% |
| 20260813 | 39% | 2.1% |
| 20260812 | 15% | 1.6% |
| 20260811 | 46% | 2.3% |
| 20260810 | 40% | 2.1% |
| 20260806 | 39% | 2.1% |
| 20260805 | 82% | 3.0% |
| 20260804 | 73% | 2.8% |
| 20260803 | 100% | 3.4% |
| 20260731 | 84% | 2.6% |
| 20260730 | 86% | 2.6% |
| 20260729 | 92% | 2.7% |
| 20260728 | 77% | 2.5% |
| 20260727 | 100% | 2.8% |
| 20260724 | 100% | 2.2% |
| 20260723 | 100% | 2.0% |
| 20260722 | 100% | 2.0% |
| 20260721 | 54% | 1.5% |
| 20260720 | 80% | 1.6% |
| 20260716 | 33% | 1.4% |
| 20260715 | 100% | 1.7% |
| 20260714 | 0% | 1.3% |
| 20260713 | 50% | 1.4% |