iRhythm (IRTC) Options Chain

NASDAQ: IRTCHealth CareMedical/Dental InstrumentsUSD

106.70+4.10 (+4.00%)

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

After hours: 106.70 0.00%

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $106.70
Put/call ratio (OI): 3.26
Put/call ratio (volume): 0.33
ATM implied volatility: 63.9%
Expected move: ±$9.44
Open interest (C / P): 129 / 420

IRTC options summary

The IRTC options chain for the October 16, 2026 expiration lists 7 call and 8 put contracts, with 7 days until expiration. Open interest stands at 129 calls and 420 puts, a put/call ratio of 3.26, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $105.00 strike is 63.9%, which implies the market expects a move of about ±$9.44 (8.8%) in iRhythm stock by expiration.

The most open interest sits at the $125.00 call (53 contracts) and the $105.00 put (174 contracts).

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

IRTC options chain · October 16, 2026

IRTC 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
—	—	—	—	—	—	85.00	0.00	1.35	0.55	114.7%	—	1
—	—	—	—	—	—	90.00	0.00	1.35	0.05	92.0%	10	50
—	—	—	—	—	—	100.00	0.00	1.50	2.00	65.3%	1	113
2	2	57.4%	20.00	2.00	4.50	105.00	0.50	3.60	1.82	70.4%	4	174
IRTC $106.70
2	2	59.8%	0.70	0.70	2.40	110.00	2.90	5.90	6.20	63.1%	1	60
28	10	55.6%	0.11	0.05	0.90	115.00	6.80	9.40	6.77	60.1%	1	14
14	2	50.0%	0.10	0.00	0.20	120.00	11.60	14.60	10.12	84.0%	5	7
53	56	76.3%	1.45	0.00	0.95	125.00	16.80	19.60	22.44	101.5%	2	1
5	1	97.8%	0.93	0.00	1.35	130.00	—	—	—	—	—	—
25	—	136.7%	2.27	0.00	2.05	140.00	—	—	—	—	—	—

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 IRTC put/call ratio?

For the October 16, 2026 expiration, the IRTC put/call ratio based on open interest is 3.26 (420 puts vs 129 calls), and 0.33 based on today's volume. A ratio above 1 means more puts than calls.

What is IRTC's implied volatility?

At-the-money implied volatility for IRTC options expiring October 16, 2026 is about 63.9%, an annualized estimate of how much the market expects iRhythm stock to move.

How many IRTC option expiration dates are there?

IRTC 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.