ECL · Ecolab Inc. · Options Chain

Track ECL — free

$269.46 -2.22 (-0.82%) At close · Sep 18

S&P 500 member Russell 1000 member Rebalance outlook locked

Market Cap

$76.94B

280.33M

Options Chain

Underlying $269.46 · at close Sep 18, 2026 Options Calculator

Pull option chains with greeks and open interest through the options chain API or MCP →

Positioning

Oct 16, 2026 · 26 days to expiry · 58 contracts · mixed daily-bar sessions · Mar 18, 2026–Sep 18, 2026; 21 unknown

Put / call OI

0.59

Call-heavy positioning

Open interest

6,221

as of Sep 17, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$270.00

$0.54 above spot

ATM implied vol

22.1%

market's expected move

Open interest by strike · near the money

Calls Puts

180

185

190

195

200

210

220

230

240

250

260

270

280

290

300

310

320

330

340

350

360

370

380

390

400

410

420

430

440

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Oct 16 26d Nov 20 61d Dec 18 89d Jan 15 117d Apr 16 208d Jan 21 488d Jan 19 852d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	86.2%	0.97	$88.50	$92.30	—		$1.05	$0.00	$2.15	—	—	1	1
Call · $180 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:40.887 UTC Last — Breakeven — Implied vol 86.2% Delta 0.97 ≈97% ITM Gamma 0.001 Theta -0.1 Vega 0.049 Open interest — OI effective date — Model this call Put · $180 Daily-bar session May 26, 2026 Quote as of 2026-09-18 19:59:59.907 UTC Last $1.05 Breakeven $178.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this put
—	—	75.5%	0.976	$83.30	$87.00	—		$1.25	$0.00	$2.15	—	—	1	1
Call · $185 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:40.923 UTC Last — Breakeven — Implied vol 75.5% Delta 0.976 ≈98% ITM Gamma 0.001 Theta -0.078 Vega 0.041 Open interest — OI effective date — Model this call Put · $185 Daily-bar session May 26, 2026 Quote as of 2026-09-18 19:59:59.907 UTC Last $1.25 Breakeven $183.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this put
—	—	77.6%	0.964	$78.60	$82.40	—		$2.29	$0.00	$2.15	—	—	1	1
Call · $190 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:40.888 UTC Last — Breakeven — Implied vol 77.6% Delta 0.964 ≈96% ITM Gamma 0.001 Theta -0.104 Vega 0.057 Open interest — OI effective date — Model this call Put · $190 Daily-bar session Mar 18, 2026 Quote as of 2026-09-18 19:59:59.907 UTC Last $2.29 Breakeven $187.71 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this put
—	—	72.5%	0.962	$73.60	$77.40	—		$0.32	$0.00	$2.15	—	—	1	11
Call · $195 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:40.888 UTC Last — Breakeven — Implied vol 72.5% Delta 0.962 ≈96% ITM Gamma 0.002 Theta -0.102 Vega 0.059 Open interest — OI effective date — Model this call Put · $195 Daily-bar session Jul 9, 2026 Quote as of 2026-09-18 19:59:59.907 UTC Last $0.32 Breakeven $194.68 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 OI effective date Sep 17, 2026 Model this put
23	1	65.9%	0.963	$68.40	$72.40	$86.10		$0.53	$0.00	$1.95	—	—	2	9
Call · $200 In the money Daily-bar session Jul 28, 2026 Quote as of 2026-09-18 19:59:40.888 UTC Last $86.10 Breakeven $286.10 Implied vol 65.9% Delta 0.963 ≈96% ITM Gamma 0.002 Theta -0.093 Vega 0.058 Open interest 23 OI effective date Sep 17, 2026 Model this call Put · $200 Daily-bar session Jul 8, 2026 Quote as of 2026-09-18 19:59:59.907 UTC Last $0.53 Breakeven $199.47 Implied vol — Delta — Gamma — Theta — Vega — Open interest 9 OI effective date Sep 17, 2026 Model this put
—	—	60.1%	0.95	$58.90	$62.40	—		$0.17	$0.00	$0.95	—	—	1	12
Call · $210 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:40.888 UTC Last — Breakeven — Implied vol 60.1% Delta 0.95 ≈95% ITM Gamma 0.002 Theta -0.106 Vega 0.074 Open interest — OI effective date — Model this call Put · $210 Daily-bar session Sep 15, 2026 Quote as of 2026-09-18 19:59:59.907 UTC Last $0.17 Breakeven $209.83 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 OI effective date Sep 17, 2026 Model this put
—	—	45.8%	0.958	$48.50	$52.10	—		$1.10	$0.00	$0.95	—	—	1	12
Call · $220 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:41.008 UTC Last — Breakeven — Implied vol 45.8% Delta 0.958 ≈96% ITM Gamma 0.003 Theta -0.078 Vega 0.064 Open interest — OI effective date — Model this call Put · $220 Daily-bar session Aug 26, 2026 Quote as of 2026-09-18 19:59:51.020 UTC Last $1.10 Breakeven $218.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 OI effective date Sep 17, 2026 Model this put
1	2	41.4%	0.934	$38.80	$42.50	$46.29		$0.20	$0.00	$0.25	—	—	4	35
Call · $230 In the money Daily-bar session Jun 18, 2026 Quote as of 2026-09-18 19:59:52.289 UTC Last $46.29 Breakeven $276.29 Implied vol 41.4% Delta 0.934 ≈93% ITM Gamma 0.004 Theta -0.096 Vega 0.093 Open interest 1 OI effective date Sep 17, 2026 Model this call Put · $230 Daily-bar session Aug 26, 2026 Quote as of 2026-09-18 19:59:47.135 UTC Last $0.20 Breakeven $229.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 35 OI effective date Sep 17, 2026 Model this put
9	1	38.3%	0.884	$29.90	$32.90	$45.63		$0.25	$0.25	$0.45	-0.044	26.3%	2	75
Call · $240 In the money Daily-bar session Jun 24, 2026 Quote as of 2026-09-18 19:59:04.050 UTC Last $45.63 Breakeven $285.63 Implied vol 38.3% Delta 0.884 ≈88% ITM Gamma 0.007 Theta -0.125 Vega 0.14 Open interest 9 OI effective date Sep 17, 2026 Model this call Put · $240 Daily-bar session Sep 17, 2026 Quote as of 2026-09-18 19:59:55.545 UTC Last $0.25 Breakeven $239.75 Implied vol 26.3% Delta -0.044 ≈4% ITM Gamma 0.005 Theta -0.033 Vega 0.067 Open interest 75 OI effective date Sep 17, 2026 Model this put
12	2	28.6%	0.851	$20.00	$22.90	$36.70		$1.15	$0.75	$1.15	-0.111	24.1%	2	324
Call · $250 In the money Daily-bar session Jul 29, 2026 Quote as of 2026-09-18 19:58:50.985 UTC Last $36.70 Breakeven $286.70 Implied vol 28.6% Delta 0.851 ≈85% ITM Gamma 0.011 Theta -0.114 Vega 0.167 Open interest 12 OI effective date Sep 17, 2026 Model this call Put · $250 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:42.063 UTC Last $1.15 Breakeven $248.85 Implied vol 24.1% Delta -0.111 ≈11% ITM Gamma 0.011 Theta -0.06 Vega 0.136 Open interest 324 OI effective date Sep 17, 2026 Model this put
121	1	28%	0.704	$12.50	$15.00	$16.40		$2.50	$2.20	$2.65	-0.252	21.8%	834	1.6k
Call · $260 In the money Daily-bar session Sep 16, 2026 Quote as of 2026-09-18 19:59:59.948 UTC Last $16.40 Breakeven $276.40 Implied vol 28% Delta 0.704 ≈70% ITM Gamma 0.017 Theta -0.153 Vega 0.248 Open interest 121 OI effective date Sep 17, 2026 Model this call Put · $260 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:59.562 UTC Last $2.50 Breakeven $257.50 Implied vol 21.8% Delta -0.252 ≈25% ITM Gamma 0.02 Theta -0.089 Vega 0.229 Open interest 1.6k OI effective date Sep 17, 2026 Model this put
Underlying $269.46
105	369	24.2%	0.51	$6.10	$7.60	$6.95		$6.10	$5.00	$6.60	-0.493	20%	60	115
Call · $270 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:59.976 UTC Last $6.95 Breakeven $276.95 Implied vol 24.2% Delta 0.51 ≈51% ITM Gamma 0.023 Theta -0.147 Vega 0.287 Open interest 105 OI effective date Sep 17, 2026 Model this call Put · $270 In the money Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:48.478 UTC Last $6.10 Breakeven $263.90 Implied vol 20% Delta -0.493 ≈49% ITM Gamma 0.028 Theta -0.095 Vega 0.287 Open interest 115 OI effective date Sep 17, 2026 Model this put
596	3	22.5%	0.279	$1.60	$3.80	$3.33		$9.50	$10.90	$13.20	-0.757	19.2%	1	151
Call · $280 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:59.536 UTC Last $3.33 Breakeven $283.33 Implied vol 22.5% Delta 0.279 ≈28% ITM Gamma 0.021 Theta -0.112 Vega 0.241 Open interest 596 OI effective date Sep 17, 2026 Model this call Put · $280 In the money Daily-bar session Sep 17, 2026 Quote as of 2026-09-18 19:59:59.908 UTC Last $9.50 Breakeven $270.50 Implied vol 19.2% Delta -0.757 ≈76% ITM Gamma 0.023 Theta -0.06 Vega 0.225 Open interest 151 OI effective date Sep 17, 2026 Model this put
722	1.6k	23.1%	0.127	$0.75	$1.30	$1.30		$19.85	$18.70	$21.40	—	—	10	8
Call · $290 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:59.754 UTC Last $1.30 Breakeven $291.30 Implied vol 23.1% Delta 0.127 ≈13% ITM Gamma 0.013 Theta -0.07 Vega 0.15 Open interest 722 OI effective date Sep 17, 2026 Model this call Put · $290 In the money Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:42.019 UTC Last $19.85 Breakeven $270.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 8 OI effective date Sep 17, 2026 Model this put
1.6k	2.4k	22.6%	0.043	$0.15	$0.40	$0.27		$33.96	$29.00	$32.30	-0.928	26.5%	2	—
Call · $300 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:59.976 UTC Last $0.27 Breakeven $300.27 Implied vol 22.6% Delta 0.043 ≈4% ITM Gamma 0.006 Theta -0.03 Vega 0.065 Open interest 1.6k OI effective date Sep 17, 2026 Model this call Put · $300 In the money Daily-bar session Jun 18, 2026 Quote as of 2026-09-18 19:59:40.891 UTC Last $33.96 Breakeven $266.04 Implied vol 26.5% Delta -0.928 ≈93% ITM Gamma 0.007 Theta -0.02 Vega 0.098 Open interest — OI effective date — Model this put
167	1	—	—	$0.00	$0.20	$0.50		$19.35	$38.30	$41.90	-0.988	22.8%	1	—
Call · $310 Daily-bar session Sep 16, 2026 Quote as of 2026-09-18 19:59:59.536 UTC Last $0.50 Breakeven $310.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 167 OI effective date Sep 17, 2026 Model this call Put · $310 In the money Daily-bar session Aug 26, 2026 Quote as of 2026-09-18 19:59:59.906 UTC Last $19.35 Breakeven $290.65 Implied vol 22.8% Delta -0.988 ≈99% ITM Gamma 0.002 Theta 0.023 Vega 0.023 Open interest — OI effective date — Model this put
244	1	—	—	$0.00	$0.75	$0.50		—	$48.30	$52.30	-0.968	33.7%	—	—
Call · $320 Daily-bar session Sep 8, 2026 Quote as of 2026-09-18 19:59:59.992 UTC Last $0.50 Breakeven $320.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 244 OI effective date Sep 17, 2026 Model this call Put · $320 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:40.891 UTC Last — Breakeven — Implied vol 33.7% Delta -0.968 ≈97% ITM Gamma 0.003 Theta -0.001 Vega 0.052 Open interest — OI effective date — Model this put
151	2	—	—	$0.00	$0.75	$1.60		$67.50	$58.30	$62.10	-0.977	37%	1	—
Call · $330 Daily-bar session Aug 28, 2026 Quote as of 2026-09-18 19:59:51.034 UTC Last $1.60 Breakeven $331.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 151 OI effective date Sep 17, 2026 Model this call Put · $330 In the money Daily-bar session Jul 23, 2026 Quote as of 2026-09-18 19:59:40.892 UTC Last $67.50 Breakeven $262.50 Implied vol 37% Delta -0.977 ≈98% ITM Gamma 0.002 Theta 0.006 Vega 0.04 Open interest — OI effective date — Model this put
12	4	—	—	$0.00	$0.75	$1.10		$77.50	$68.30	$72.30	-0.97	44.5%	1	—
Call · $340 Daily-bar session Jul 29, 2026 Quote as of 2026-09-18 19:59:51.021 UTC Last $1.10 Breakeven $341.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 OI effective date Sep 17, 2026 Model this call Put · $340 In the money Daily-bar session Jul 23, 2026 Quote as of 2026-09-18 19:59:40.892 UTC Last $77.50 Breakeven $262.50 Implied vol 44.5% Delta -0.97 ≈97% ITM Gamma 0.002 Theta -0.006 Vega 0.048 Open interest — OI effective date — Model this put
8	2	—	—	$0.00	$0.75	$0.60		—	$78.30	$82.30	-0.971	49.6%	—	—
Call · $350 Daily-bar session Jul 10, 2026 Quote as of 2026-09-18 19:59:59.566 UTC Last $0.60 Breakeven $350.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 8 OI effective date Sep 17, 2026 Model this call Put · $350 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:40.892 UTC Last — Breakeven — Implied vol 49.6% Delta -0.971 ≈97% ITM Gamma 0.002 Theta -0.009 Vega 0.047 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.95	—		—	$88.30	$92.30	-0.972	54.6%	—	—
Call · $360 Daily-bar session Unknown Quote as of 2026-09-18 19:59:51.370 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $360 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:40.892 UTC Last — Breakeven — Implied vol 54.6% Delta -0.972 ≈97% ITM Gamma 0.002 Theta -0.012 Vega 0.047 Open interest — OI effective date — Model this put
6	1	—	—	$0.00	$0.30	$0.55		—	$98.30	$102.10	-0.977	57.1%	—	—
Call · $370 Daily-bar session Jun 17, 2026 Quote as of 2026-09-18 19:59:59.907 UTC Last $0.55 Breakeven $370.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 17, 2026 Model this call Put · $370 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:40.892 UTC Last — Breakeven — Implied vol 57.1% Delta -0.977 ≈98% ITM Gamma 0.001 Theta -0.004 Vega 0.039 Open interest — OI effective date — Model this put
88	1	—	—	$0.00	$2.15	$0.19		—	$108.30	$112.30	-0.972	64.1%	—	—
Call · $380 Daily-bar session Jul 2, 2026 Quote as of 2026-09-18 19:59:59.907 UTC Last $0.19 Breakeven $380.19 Implied vol — Delta — Gamma — Theta — Vega — Open interest 88 OI effective date Sep 17, 2026 Model this call Put · $380 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:43.654 UTC Last — Breakeven — Implied vol 64.1% Delta -0.972 ≈97% ITM Gamma 0.001 Theta -0.017 Vega 0.046 Open interest — OI effective date — Model this put
1	—	—	—	$0.00	$2.15	—		—	$118.30	$122.30	-0.972	68.7%	—	—
Call · $390 Daily-bar session Unknown Quote as of 2026-09-18 19:59:51.060 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this call Put · $390 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:43.654 UTC Last — Breakeven — Implied vol 68.7% Delta -0.972 ≈97% ITM Gamma 0.001 Theta -0.02 Vega 0.046 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.15	—		—	$128.30	$132.30	-0.973	73.2%	—	—
Call · $400 Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.907 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $400 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:43.654 UTC Last — Breakeven — Implied vol 73.2% Delta -0.973 ≈97% ITM Gamma 0.001 Theta -0.022 Vega 0.046 Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$2.15	$0.15		—	$138.30	$142.30	-0.973	77.5%	—	—
Call · $410 Daily-bar session Jun 17, 2026 Quote as of 2026-09-18 19:59:59.907 UTC Last $0.15 Breakeven $410.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this call Put · $410 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:43.654 UTC Last — Breakeven — Implied vol 77.5% Delta -0.973 ≈97% ITM Gamma 0.001 Theta -0.025 Vega 0.045 Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$2.15	$0.20		—	$148.30	$151.40	-0.992	66.6%	—	—
Call · $420 Daily-bar session Jun 17, 2026 Quote as of 2026-09-18 19:59:40.894 UTC Last $0.20 Breakeven $420.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this call Put · $420 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:59.744 UTC Last — Breakeven — Implied vol 66.6% Delta -0.992 ≈99% ITM Gamma 0.001 Theta 0.024 Vega 0.016 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.15	—		—	$158.30	$162.30	—	—	—	—
Call · $430 Daily-bar session Unknown Quote as of 2026-09-18 19:57:38.353 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $430 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:43.654 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$2.15	$0.20		—	$168.30	$172.30	—	—	—	—
Call · $440 Daily-bar session Jun 17, 2026 Quote as of 2026-09-18 19:55:15.156 UTC Last $0.20 Breakeven $440.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 17, 2026 Model this call Put · $440 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:43.654 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put

About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Mar 18, 2026–Sep 18, 2026; 21 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. The 24 strikes around the money are shown by default — switch to "All 29" for the wings. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 31462 CUSIP 278865100 13F (30d) 54 filings 30 filers Visit website Investor relations