HTFL (Heartflow, Inc. Common Stock)
Historical IV Rank & Volatility Regime
IV Rank measures where HTFL'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 HTFL 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.
HTFL IV Rank Summary
Current
8%
Compressed — premium buying regime
30-Day Avg
12%
60-Day Avg
11%
90-Day Avg
27%
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 HTFL'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.
HTFL IV Rank — Last 90 Trading Days
| Date | IV Rank | Avg IV |
|---|---|---|
| 20260811 | 8% | 1.1% |
| 20260810 | 10% | 1.1% |
| 20260806 | 2% | 0.9% |
| 20260805 | 23% | 1.4% |
| 20260804 | 16% | 1.3% |
| 20260803 | 22% | 1.4% |
| 20260731 | 18% | 1.3% |
| 20260730 | 13% | 1.2% |
| 20260729 | 15% | 1.3% |
| 20260728 | 12% | 1.2% |
| 20260727 | 12% | 1.2% |
| 20260724 | 16% | 1.3% |
| 20260723 | 11% | 1.1% |
| 20260722 | 11% | 1.1% |
| 20260721 | 10% | 1.1% |
| 20260720 | 9% | 1.1% |
| 20260716 | 7% | 1.0% |
| 20260715 | 4% | 1.0% |
| 20260714 | 5% | 1.0% |
| 20260713 | 5% | 1.0% |
| 20260710 | 1% | 0.9% |
| 20260709 | 4% | 1.0% |
| 20260708 | 0% | 0.9% |
| 20260707 | 0% | 0.9% |
| 20260706 | 4% | 1.0% |
| 20260702 | 23% | 1.5% |
| 20260701 | 20% | 1.4% |
| 20260630 | 33% | 1.7% |
| 20260629 | 30% | 1.7% |
| 20260626 | 13% | 1.3% |
| 20260625 | 22% | 1.5% |
| 20260624 | 20% | 1.4% |
| 20260623 | 7% | 1.1% |
| 20260622 | 13% | 1.3% |
| 20260618 | 6% | 1.1% |
| 20260617 | 10% | 1.2% |
| 20260616 | 16% | 1.3% |
| 20260615 | 10% | 1.2% |
| 20260613 | 6% | 1.1% |
| 20260612 | 2% | 1.0% |
| 20260611 | 6% | 1.1% |
| 20260610 | 1% | 1.0% |
| 20260609 | 7% | 1.1% |
| 20260608 | 8% | 1.1% |
| 20260605 | 7% | 1.1% |
| 20260604 | 5% | 1.1% |
| 20260603 | 1% | 1.0% |
| 20260602 | 21% | 1.5% |
| 20260601 | 18% | 1.4% |
| 20260529 | 13% | 1.3% |
| 20260528 | 13% | 1.3% |
| 20260527 | 10% | 1.2% |
| 20260526 | 12% | 1.2% |
| 20260522 | 4% | 1.0% |
| 20260521 | 4% | 1.1% |
| 20260520 | 9% | 1.0% |
| 20260519 | 10% | 1.1% |
| 20260518 | 11% | 1.1% |
| 20260515 | 8% | 1.0% |
| 20260514 | 8% | 1.0% |
| 20260513 | 8% | 1.0% |
| 20260512 | 10% | 1.1% |
| 20260511 | 12% | 1.1% |
| 20260510 | 10% | 1.0% |
| 20260508 | 9% | 1.0% |
| 20260507 | 8% | 1.0% |
| 20260506 | 8% | 1.0% |
| 20260505 | 8% | 1.0% |
| 20260504 | 9% | 1.0% |
| 20260502 | 100% | 3.3% |
| 20260501 | 100% | 2.8% |
| 20260430 | 91% | 2.5% |
| 20260429 | 92% | 2.5% |
| 20260428 | 80% | 2.3% |
| 20260427 | 84% | 2.3% |
| 20260424 | 87% | 2.4% |
| 20260423 | 80% | 2.3% |
| 20260422 | 100% | 2.7% |
| 20260421 | 95% | 2.4% |
| 20260420 | 100% | 2.5% |
| 20260417 | 93% | 2.1% |
| 20260416 | 98% | 2.2% |
| 20260415 | 82% | 1.9% |
| 20260414 | 89% | 2.0% |
| 20260413 | 100% | 2.2% |
| 20260410 | 39% | 1.0% |
| 20260409 | 62% | 1.2% |
| 20260408 | 56% | 1.1% |
| 20260407 | 46% | 1.0% |
| 20260406 | 46% | 1.0% |