Heartflow (HTFL) Options Chain

NASDAQ: HTFLHealth CareMedical/Dental InstrumentsUSD

49.74+2.11 (+4.43%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 69
Share price: $49.74
Put/call ratio (OI): 0.59
Put/call ratio (volume): 7.49
ATM implied volatility: 80.2%
Expected move: ±$17.34
Open interest (C / P): 764 / 447

HTFL options summary

The HTFL options chain for the December 18, 2026 expiration lists 13 call and 8 put contracts, with 69 days until expiration. Open interest stands at 764 calls and 447 puts, a put/call ratio of 0.59, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $50.00 strike is 80.2%, which implies the market expects a move of about ±$17.34 (34.9%) in Heartflow stock by expiration.

The most open interest sits at the $35.00 call (361 contracts) and the $35.00 put (372 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

HTFL options chain · December 18, 2026

HTFL calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
2	—	—	20.12	15.50	18.70	12.50	—	—	—	—	—	—
4	2	168.8%	14.00	33.80	36.50	15.00	—	—	—	—	—	—
—	—	—	—	—	—	20.00	0.00	0.00	0.64	50.0%	—	0
1	12	—	12.73	8.60	11.50	22.50	0.00	0.00	0.75	50.0%	2	0
13	1	99.7%	25.04	23.20	27.00	25.00	0.00	0.00	2.75	25.0%	1	0
11	1	98.8%	20.00	18.70	22.70	30.00	0.00	1.40	0.75	90.3%	2	4
361	2	99.8%	15.82	15.00	18.70	35.00	0.55	2.10	1.25	83.5%	341	372
55	1	85.9%	11.65	10.90	14.30	40.00	1.75	3.60	3.10	83.0%	4	27
132	4	83.5%	9.48	7.70	11.20	45.00	3.10	5.80	4.62	80.2%	1	42
HTFL $49.74
158	10	82.3%	6.70	5.30	8.60	50.00	5.40	8.30	7.45	78.0%	1	2
14	11	83.5%	4.79	3.60	6.80	55.00	—	—	—	—	—	—
6	1	81.2%	3.32	2.20	5.00	60.00	—	—	—	—	—	—
4	1	81.9%	2.17	1.45	3.80	65.00	—	—	—	—	—	—
3	1	75.4%	2.29	0.65	2.30	70.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the HTFL put/call ratio?

For the December 18, 2026 expiration, the HTFL put/call ratio based on open interest is 0.59 (447 puts vs 764 calls), and 7.49 based on today's volume. A ratio above 1 means more puts than calls.

What is HTFL's implied volatility?

At-the-money implied volatility for HTFL options expiring December 18, 2026 is about 80.2%, an annualized estimate of how much the market expects Heartflow stock to move.

How many HTFL option expiration dates are there?

HTFL has 7 listed expiration dates, from Oct 16, 2026 to Dec 17, 2027.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.