Olin (OLN) Options Chain

NYSE: OLNIndustrialsMajor ChemicalsUSD

14.89-0.72 (-4.61%)

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

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 41
Share price: $14.89
Put/call ratio (OI): 0.95
Put/call ratio (volume): 4.29
ATM implied volatility: 54.4%
Expected move: ±$2.72
Open interest (C / P): 4.25K / 4.05K

OLN options summary

The OLN options chain for the November 20, 2026 expiration lists 13 call and 9 put contracts, with 41 days until expiration. Open interest stands at 4,254 calls and 4,047 puts, a put/call ratio of 0.95, which is fairly balanced between calls and puts. At-the-money implied volatility near the $15.00 strike is 54.4%, which implies the market expects a move of about ±$2.72 (18.2%) in Olin stock by expiration.

The most open interest sits at the $22.50 call (1.34K contracts) and the $20.00 put (2.13K contracts).

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

OLN options chain · November 20, 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
—	—	—	—	—	—	10.00	0.00	1.00	0.22	127.2%	10	10
5	2	60.8%	3.49	2.10	3.30	12.50	0.15	0.45	0.25	60.1%	42	159
OLN $14.89
158	107	56.0%	1.20	0.95	1.20	15.00	1.05	1.20	1.10	52.9%	23	544
558	79	51.9%	0.35	0.20	0.35	17.50	2.80	3.10	3.10	56.3%	570	926
785	1	54.7%	0.10	0.00	0.15	20.00	4.80	5.30	4.91	68.2%	4	2,127
1,338	1	65.6%	0.10	0.00	0.10	22.50	6.00	8.40	5.80	132.7%	24	42
126	6	92.8%	0.05	0.00	0.25	25.00	8.00	11.70	9.00	198.3%	507	16
217	1	145.3%	0.06	0.00	1.00	27.50	12.10	12.90	12.10	126.2%	36	223
273	100	127.5%	0.04	0.00	0.40	30.00	—	—	—	—	—	—
114	1	174.2%	0.04	0.00	1.10	32.50	—	—	—	—	—	—
95	2	106.3%	0.05	0.00	0.05	35.00	15.70	19.60	13.10	—	100	0
560	5	212.7%	0.50	0.00	1.55	37.50	—	—	—	—	—	—
16	2	243.5%	1.30	0.00	2.15	40.00	—	—	—	—	—	—
9	—	193.9%	0.30	0.00	0.75	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 November 20, 2026 expiration, the OLN put/call ratio based on open interest is 0.95 (4,047 puts vs 4,254 calls), and 4.29 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 November 20, 2026 is about 54.4%, 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.