Olin (OLN) Options Chain

NYSE: OLNIndustrialsMajor ChemicalsUSD

15.61-0.31 (-1.95%)

At close: Oct 8, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 7
Share price: $15.61
Put/call ratio (OI): 0.27
Put/call ratio (volume): 1.27
ATM implied volatility: 57.4%
Expected move: ±$1.24
Open interest (C / P): 7.79K / 2.09K

OLN options summary

The OLN options chain for the October 16, 2026 expiration lists 16 call and 12 put contracts, with 7 days until expiration. Open interest stands at 7,795 calls and 2,089 puts, a put/call ratio of 0.27, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $15.00 strike is 57.4%, which implies the market expects a move of about ±$1.24 (8.0%) in Olin stock by expiration.

The most open interest sits at the $25.00 call (1.77K contracts) and the $17.50 put (895 contracts).

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

OLN options chain · October 16, 2026

OLN 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
0	85	956.3%	12.23	8.40	11.90	5.00	0.00	0.00	0.05	50.0%	2	0
0	2	—	17.10	0.00	0.00	7.50	—	—	—	—	—	—
1	2	1907.0%	13.78	11.60	15.70	10.00	0.00	0.10	0.10	171.1%	35	107
3	2	239.1%	2.65	1.15	3.90	12.50	0.00	0.15	0.10	105.5%	11	54
172	2	60.0%	0.80	0.60	0.90	15.00	0.10	0.25	0.12	54.9%	1	843
OLN $15.61
1,283	12	55.5%	0.05	0.00	0.10	17.50	1.65	2.30	2.02	63.7%	15	895
934	6	87.5%	0.03	0.00	0.05	20.00	3.20	4.90	4.70	189.4%	595	190
766	2	120.3%	0.05	0.00	0.05	22.50	4.90	7.40	5.40	238.5%	2	0
1,771	2	148.4%	0.04	0.00	0.05	25.00	7.30	9.90	8.00	279.1%	4	0
234	1	173.4%	0.08	0.00	0.05	27.50	9.80	12.70	11.22	361.9%	1	0
681	2	193.8%	0.13	0.00	0.05	30.00	12.30	15.20	13.20	394.1%	8	0
233	200	214.1%	0.05	0.00	0.05	32.50	—	—	—	—	—	—
1,044	2	367.2%	0.01	0.00	0.75	35.00	—	—	—	—	—	—
35	10	425.4%	0.10	0.00	1.10	37.50	19.80	23.20	20.97	545.7%	1	0
0	200	50.0%	0.51	0.00	0.00	40.00	22.30	25.70	22.24	568.0%	1	0
638	1	527.3%	0.25	0.00	1.80	42.50	—	—	—	—	—	—

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 OLN put/call ratio?

For the October 16, 2026 expiration, the OLN put/call ratio based on open interest is 0.27 (2,089 puts vs 7,795 calls), and 1.27 based on today's volume. A ratio above 1 means more puts than calls.

What is OLN's implied volatility?

At-the-money implied volatility for OLN options expiring October 16, 2026 is about 57.4%, an annualized estimate of how much the market expects Olin stock to move.

How many OLN option expiration dates are there?

OLN has 7 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.