RLI (RLI Corp.)

Historical IV Rank & Volatility Regime

IV Rank measures where RLI'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 RLI 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.

RLI IV Rank Summary
Current
45%
Subdued — neutral to long-vol
30-Day Avg
43%
60-Day Avg
38%
90-Day Avg
44%
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 RLI'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.
RLI IV Rank — Last 90 Trading Days
DateIV RankAvg IV
20260605 45% 0.6%
20260604 43% 0.6%
20260603 23% 0.5%
20260602 74% 0.8%
20260601 79% 0.9%
20260529 0% 0.3%
20260528 37% 0.6%
20260527 30% 0.5%
20260526 41% 0.6%
20260522 14% 0.4%
20260521 9% 0.4%
20260520 17% 0.5%
20260519 13% 0.4%
20260518 39% 0.6%
20260515 46% 0.6%
20260514 45% 0.6%
20260513 40% 0.6%
20260512 45% 0.6%
20260511 47% 0.7%
20260510 51% 0.7%
20260508 38% 0.6%
20260507 35% 0.6%
20260506 42% 0.6%
20260505 46% 0.6%
20260504 42% 0.6%
20260502 90% 0.9%
20260501 63% 0.8%
20260430 75% 0.8%
20260429 66% 0.8%
20260428 60% 0.7%
20260427 53% 0.7%
20260424 48% 0.7%
20260423 32% 0.6%
20260422 39% 0.6%
20260421 26% 0.5%
20260420 27% 0.5%
20260417 23% 0.5%
20260416 18% 0.4%
20260415 28% 0.5%
20260414 29% 0.5%
20260413 29% 0.5%
20260410 5% 0.3%
20260409 29% 0.5%
20260408 29% 0.5%
20260407 26% 0.5%
20260406 32% 0.5%
20260402 24% 0.5%
20260401 37% 0.6%
20260331 37% 0.6%
20260330 44% 0.6%
20260327 34% 0.5%
20260326 40% 0.6%
20260325 43% 0.6%
20260324 34% 0.5%
20260323 49% 0.7%
20260320 34% 0.5%
20260319 27% 0.5%
20260318 29% 0.5%
20260317 37% 0.6%
20260316 42% 0.6%
20260313 33% 0.5%
20260312 29% 0.5%
20260311 24% 0.5%
20260310 29% 0.5%
20260309 23% 0.5%
20260308 30% 0.5%
20260306 27% 0.5%
20260305 24% 0.5%
20260304 100% 1.0%
20260303 100% 1.0%
20260302 95% 0.8%
20260227 100% 0.8%
20260226 91% 0.8%
20260225 58% 0.6%
20260224 56% 0.6%
20260223 78% 0.7%
20260221 75% 0.7%
20260220 73% 0.7%
20260219 57% 0.6%
20260218 78% 0.7%
20260217 56% 0.6%
20260213 41% 0.5%
20260212 64% 0.7%
20260211 44% 0.5%
20260210 53% 0.6%
20260209 37% 0.5%
20260206 42% 0.5%
20260205 57% 0.6%
20260204 46% 0.6%
20260203 49% 0.6%