ResMed (RMD) Options Chain

NYSE: RMDHealth CareMedical/Dental InstrumentsUSD

230.05+3.32 (+1.46%)

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

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 40
Share price: $230.05
Put/call ratio (OI): 1.19
Put/call ratio (volume): 0.58
ATM implied volatility: 39.5%
Expected move: ±$30.10
Open interest (C / P): 324 / 387

RMD options summary

The RMD options chain for the November 20, 2026 expiration lists 8 call and 11 put contracts, with 40 days until expiration. Open interest stands at 324 calls and 387 puts, a put/call ratio of 1.19, which is fairly balanced between calls and puts. At-the-money implied volatility near the $230.00 strike is 39.5%, which implies the market expects a move of about ±$30.10 (13.1%) in ResMed stock by expiration.

The most open interest sits at the $240.00 call (184 contracts) and the $185.00 put (114 contracts).

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

RMD options chain · November 20, 2026

RMD 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
—	—	—	—	—	—	155.00	0.00	1.85	1.02	71.4%	1	1
—	—	—	—	—	—	175.00	0.00	1.00	0.80	53.6%	—	4
—	—	—	—	—	—	180.00	0.25	2.15	1.94	51.3%	1	3
—	—	—	—	—	—	185.00	0.30	2.30	1.78	55.7%	1	114
—	—	—	—	—	—	190.00	0.25	1.45	0.95	44.3%	2	99
—	—	—	—	—	—	195.00	0.85	1.95	1.51	43.3%	1	4
4	—	50.5%	29.65	31.40	34.20	200.00	0.95	2.35	1.90	40.9%	3	33
2	1	46.7%	20.38	23.50	26.00	210.00	3.60	4.00	3.60	38.5%	19	61
16	2	43.1%	14.75	16.00	18.60	220.00	6.20	7.20	6.40	38.4%	1	44
27	2	40.9%	11.31	10.20	12.60	230.00	10.30	11.70	10.50	38.1%	1	22
RMD $230.05
184	1	38.6%	7.05	5.20	7.80	240.00	15.30	17.90	19.45	39.1%	1	2
77	8	39.1%	4.55	2.70	5.00	250.00	—	—	—	—	—	—
6	38	37.6%	2.30	1.05	2.70	260.00	—	—	—	—	—	—
8	1	41.2%	1.45	0.80	2.10	270.00	—	—	—	—	—	—

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 RMD put/call ratio?

For the November 20, 2026 expiration, the RMD put/call ratio based on open interest is 1.19 (387 puts vs 324 calls), and 0.58 based on today's volume. A ratio above 1 means more puts than calls.

What is RMD's implied volatility?

At-the-money implied volatility for RMD options expiring November 20, 2026 is about 39.5%, an annualized estimate of how much the market expects ResMed stock to move.

How many RMD option expiration dates are there?

RMD has 5 listed expiration dates, from Oct 16, 2026 to Apr 16, 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.