Ecolab (ECL) Options Chain

NYSE: ECLConsumer DiscretionaryPackage Goods/CosmeticsUSD

281.83+0.14 (+0.05%)

At close: Oct 9, 4:01 PM ET · Delayed 15 min

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 6
Share price: $281.83
Put/call ratio (OI): 0.47
Put/call ratio (volume): 14.55
ATM implied volatility: 33.5%
Expected move: ±$12.10
Open interest (C / P): 7.92K / 3.71K

ECL options summary

The ECL options chain for the October 16, 2026 expiration lists 20 call and 18 put contracts, with 6 days until expiration. Open interest stands at 7,925 calls and 3,714 puts, a put/call ratio of 0.47, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $280.00 strike is 33.5%, which implies the market expects a move of about ±$12.10 (4.3%) in Ecolab stock by expiration.

The most open interest sits at the $300.00 call (3.68K contracts) and the $270.00 put (2.11K contracts).

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

ECL options chain · October 16, 2026

ECL 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
—	—	—	—	—	—	180.00	0.00	0.00	1.05	50.0%	—	0
—	—	—	—	—	—	185.00	0.00	0.00	1.25	50.0%	1	0
—	—	—	—	—	—	190.00	0.00	2.00	2.29	168.3%	—	1
—	—	—	—	—	—	195.00	0.00	0.95	0.32	138.8%	1	11
23	1	119.2%	71.60	80.70	83.50	200.00	0.00	0.75	0.53	125.5%	2	9
—	—	—	—	—	—	210.00	0.00	2.15	0.17	133.8%	1	12
—	—	—	—	—	—	220.00	0.00	2.15	0.05	116.3%	1	12
1	2	—	46.29	36.00	39.60	230.00	0.00	0.95	0.15	83.8%	12	36
9	1	144.6%	45.63	46.60	49.50	240.00	0.00	0.25	0.05	55.1%	5	81
12	2	62.5%	36.70	30.20	32.70	250.00	0.00	0.30	0.12	49.7%	4	336
121	1	53.0%	16.40	20.70	23.20	260.00	0.00	0.45	0.07	39.3%	856	843
455	3	36.8%	12.45	11.60	13.40	270.00	0.45	0.80	0.50	28.9%	6	2,106
564	8	35.0%	4.61	4.10	6.40	280.00	1.35	4.10	2.50	32.0%	8	232
ECL $281.83
2,381	25	30.5%	0.83	0.35	1.80	290.00	8.00	10.70	19.38	36.2%	1	23
3,684	4	30.9%	0.14	0.00	0.40	300.00	37.20	40.50	33.96	180.1%	2	12
166	2	49.3%	0.23	0.00	0.75	310.00	26.60	29.50	19.35	57.5%	—	0
244	3	53.0%	0.35	0.00	0.75	320.00	—	—	—	—	—	—
151	2	78.4%	1.60	0.00	2.15	330.00	42.20	45.20	67.50	—	1	0
12	4	72.6%	1.10	0.00	0.75	340.00	51.30	55.30	77.50	—	1	0
8	2	81.6%	0.60	0.00	0.75	350.00	—	—	—	—	—	—
6	1	98.3%	0.55	0.00	0.75	370.00	—	—	—	—	—	—
85	1	127.5%	0.14	0.00	2.15	380.00	—	—	—	—	—	—
0	—	50.0%	2.10	0.00	0.00	390.00	—	—	—	—	—	—
1	—	153.5%	0.15	0.00	2.25	410.00	—	—	—	—	—	—
1	—	160.5%	0.20	0.00	2.20	420.00	—	—	—	—	—	—
1	—	175.0%	0.20	0.00	2.20	440.00	—	—	—	—	—	—

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 ECL put/call ratio?

For the October 16, 2026 expiration, the ECL put/call ratio based on open interest is 0.47 (3,714 puts vs 7,925 calls), and 14.55 based on today's volume. A ratio above 1 means more puts than calls.

What is ECL's implied volatility?

At-the-money implied volatility for ECL options expiring October 16, 2026 is about 33.5%, an annualized estimate of how much the market expects Ecolab stock to move.

How many ECL option expiration dates are there?

ECL 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.