Iron Mountain (Delaware)Common Stock REIT (IRM) Options Chain

NYSE: IRMReal EstateReal Estate Investment TrustsUSD

114.51+1.54 (+1.36%)

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

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 468
Share price: $114.51
Put/call ratio (OI): 10.44
Put/call ratio (volume): 0.39
ATM implied volatility: 34.9%
Expected move: ±$45.27
Open interest (C / P): 1.40K / 14.60K

IRM options summary

The IRM options chain for the January 21, 2028 expiration lists 31 call and 20 put contracts, with 468 days until expiration. Open interest stands at 1,398 calls and 14,598 puts, a put/call ratio of 10.44, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $115.00 strike is 34.9%, which implies the market expects a move of about ±$45.27 (39.5%) in Iron Mountain (Delaware)Common Stock REIT stock by expiration.

The most open interest sits at the $155.00 call (238 contracts) and the $50.00 put (13.34K contracts).

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

IRM options chain · January 21, 2028

IRM 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
193	200	68.7%	69.10	67.50	72.50	45.00	0.05	2.70	0.95	56.0%	1	23
0	20	62.0%	64.00	62.50	67.50	50.00	0.05	3.00	0.83	51.7%	4	13,342
0	—	—	46.95	0.00	0.00	55.00	1.90	4.90	5.60	58.3%	6	12
10	10	53.0%	57.40	53.50	58.00	60.00	0.00	3.30	1.35	52.1%	5	79
2	1	46.4%	48.10	49.00	52.70	65.00	0.40	3.50	2.61	47.9%	1	14
37	10	45.4%	44.25	44.90	48.60	70.00	2.00	3.00	3.00	40.8%	2	8
24	3	57.1%	51.78	47.00	50.00	75.00	2.25	4.20	3.45	41.1%	1	11
55	3	45.5%	36.00	37.00	41.50	80.00	2.45	6.00	3.96	42.5%	2	35
9	1	41.2%	34.87	34.40	36.70	85.00	4.60	5.40	5.20	36.0%	5	378
27	1	43.6%	33.57	30.00	34.50	90.00	5.70	8.20	8.40	39.1%	1	5
29	1	41.0%	29.18	26.50	30.50	95.00	6.20	8.80	8.22	35.8%	2	5
45	4	40.1%	23.30	23.50	27.40	100.00	8.10	10.30	8.95	34.4%	2	109
14	1	38.5%	21.25	20.50	24.10	105.00	9.00	12.90	11.54	35.0%	140	440
70	1	38.4%	19.80	18.00	21.70	110.00	12.00	15.30	13.80	34.6%	1	1
IRM $114.51
56	1	37.4%	15.80	15.50	19.00	115.00	13.50	17.00	16.03	32.5%	1	68
79	1	38.4%	16.00	13.00	17.60	120.00	16.10	19.60	18.55	31.7%	1	0
59	1	36.9%	11.80	11.70	15.00	125.00	19.80	23.70	21.80	33.4%	1	63
63	8	37.6%	11.27	9.70	13.80	130.00	22.60	26.70	23.00	32.6%	1	0
0	1	3.1%	16.35	0.00	0.00	135.00	25.00	30.00	30.68	32.0%	—	4
18	3	36.1%	8.03	6.00	10.30	140.00	—	—	—	—	—	—
141	140	34.6%	11.11	5.30	8.40	145.00	—	—	—	—	—	—
175	2	35.2%	6.86	4.60	7.70	150.00	36.00	40.50	36.55	29.2%	—	1
238	1	34.3%	5.75	3.00	6.40	155.00	—	—	—	—	—	—
0	3	6.3%	9.50	0.00	0.00	160.00	—	—	—	—	—	—
0	—	6.3%	7.80	0.00	0.00	165.00	—	—	—	—	—	—
14	32	34.5%	3.84	1.95	4.40	170.00	—	—	—	—	—	—
1	1	34.0%	4.25	0.85	3.70	175.00	—	—	—	—	—	—
5	3	33.9%	2.80	1.20	3.20	180.00	—	—	—	—	—	—
11	1	34.9%	1.41	1.00	3.10	185.00	—	—	—	—	—	—
4	1	36.5%	1.75	0.05	3.20	190.00	—	—	—	—	—	—
19	1	37.3%	1.25	0.05	3.10	195.00	—	—	—	—	—	—

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 IRM put/call ratio?

For the January 21, 2028 expiration, the IRM put/call ratio based on open interest is 10.44 (14,598 puts vs 1,398 calls), and 0.39 based on today's volume. A ratio above 1 means more puts than calls.

What is IRM's implied volatility?

At-the-money implied volatility for IRM options expiring January 21, 2028 is about 34.9%, an annualized estimate of how much the market expects Iron Mountain (Delaware)Common Stock REIT stock to move.

How many IRM option expiration dates are there?

IRM has 14 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

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.