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Heartflow HTFL 50.68 1.11 2.24%

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ATM IV
0.737
Put Call Ratio (OI)
0.527
Put Call Ratio (Vol)
0.844
IV Rank
54.6
IV Percentile
28.4
Max Pain
40

Delta exposure (2026-09-18)

Delta approximates how many cents the option moves for a $1 move in the underlying.

A 0.50 call gains ~$0.50 if the stock goes up $1. Delta also approximates the option's probability of finishing in the money.

DTE \text{DTE}
0.0
455.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-38.3
38.3