Monthly IV Report: August 2026 — Highest IV Rank Stocks & Volatility Statistics
Data as of 2026-08-03 · Universe: 1096 liquid optionable US stocks · Source: institutional options data
According to ApexVol data as of 2026-08-03, the median IV rank across 1096 liquid optionable US stocks is 67.0, with 46.3% of names showing an IV rank above 70 and 17.7% below 30. ACN tops the high-IV-rank list at 100.0 (30-day implied volatility of 53.0%), and the median 30-day implied volatility across the universe is 53.8%.
Top 10 Highest IV-Rank Stocks
According to ApexVol data, these are the 10 liquid US stocks with the highest 1-year IV percentile in August 2026 — options premium in these names is the richest relative to its own 12-month history.
Top 10 Lowest IV-Rank Stocks (Cheapest Volatility)
According to ApexVol data, options in these names are the cheapest relative to their own 12-month IV history in August 2026 — relevant for long-premium strategies like calendars, straddles, and protective puts.
Top 10 IV-vs-HV Spreads (Richest Vol Risk Premium)
According to ApexVol data, these stocks show the widest gap between 30-day implied volatility and 20-day realized volatility in August 2026 — the market is pricing substantially more movement than these names have recently delivered.
| # | Ticker | IV − HV Spread | 30d IV | 20d HV | IV Rank |
|---|---|---|---|---|---|
| 1 | TENX | +316.6 pts | 411.2% | 94.5% | 100.0 |
| 2 | AMLX | +166.6 pts | 236.7% | 70.1% | 95.0 |
| 3 | EYPT | +159.3 pts | 233.7% | 74.4% | 89.0 |
| 4 | ANNX | +142.3 pts | 244.3% | 102.1% | 93.0 |
| 5 | SLS | +115.0 pts | 235.1% | 120.1% | 100.0 |
| 6 | SPCH | +109.3 pts | 247.3% | 137.9% | 93.0 |
| 7 | SSPC | +100.9 pts | 233.8% | 132.9% | 100.0 |
| 8 | MESO | +97.0 pts | 150.0% | 53.0% | 94.0 |
| 9 | MLTX | +92.0 pts | 151.4% | 59.3% | 61.0 |
| 10 | RARE | +79.6 pts | 138.1% | 58.4% | 99.0 |
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Methodology
Data source: our institutional data provider, the institutional options data provider that powers all ApexVol analytics. The universe is the full US equity coverage filtered to liquid optionable names: share price above $5, a 20-day average options volume of at least 1,000 contracts, and valid implied volatility data — 1096 stocks for August 2026. IV rank (1-year IV percentile) measures where a stock's current 30-day implied volatility sits relative to its own range over the past 252 trading days: 100 means IV is at a 1-year high, 0 means a 1-year low. IV-vs-HV spreads compare 30-day implied volatility against 20-day realized (historical) volatility; implied earnings moves are derived from earnings-dated straddle pricing. Statistics are computed once at the start of the month and are not updated intraday.
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