STE · STERIS plc · Options Chain

Track STE — free

$216.25 -2.19 (-1.00%)

S&P 500 member Russell 1000 member Rebalance outlook locked

Market Cap

$21.90B

97.50M

Options Chain

Underlying $216.25 · today Options Calculator

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

Positioning

Sep 18, 2026 · 9 days to expiry · 64 contracts · mixed daily-bar sessions · Feb 5, 2026–Sep 8, 2026; 30 unknown

Put / call OI

0.32

Call-heavy positioning

Open interest

576

as of Sep 4, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$230.00

$13.75 above spot

ATM implied vol

25.3%

market's expected move

Open interest by strike · near the money

Calls Puts

140

145

150

155

160

165

170

175

180

185

190

195

200

210

220

230

240

250

260

270

280

290

300

310

320

330

340

350

360

370

380

390

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 9d Oct 16 37d Dec 18 100d Mar 19 191d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$75.10	$78.50	—		—	$0.00	$1.35	—	—	—	—
Call · $140 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:25:00.872 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $140 Daily-bar session Unknown Quote as of 2026-09-09 17:28:29.200 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$70.90	$73.30	—		—	$0.00	$0.75	—	—	—	—
Call · $145 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:24:49.407 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $145 Daily-bar session Unknown Quote as of 2026-09-09 17:25:32.868 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	50	—	—	$65.40	$68.50	$77.83		$0.65	$0.00	$0.75	—	—	17	17
Call · $150 In the money Daily-bar session Sep 3, 2026 Quote as of 2026-09-09 17:24:49.402 UTC Last $77.83 Breakeven $227.83 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $150 Daily-bar session Jun 24, 2026 Quote as of 2026-09-09 17:16:05.206 UTC Last $0.65 Breakeven $149.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 17 OI effective date Sep 4, 2026 Model this put
—	50	—	—	$60.10	$63.40	$72.83		—	$0.00	$0.75	—	—	—	—
Call · $155 In the money Daily-bar session Sep 3, 2026 Quote as of 2026-09-09 17:24:06.879 UTC Last $72.83 Breakeven $227.83 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $155 Daily-bar session Unknown Quote as of 2026-09-09 16:07:15.190 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$55.40	$58.50	—		—	$0.00	$0.75	—	—	—	—
Call · $160 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:08:58.567 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $160 Daily-bar session Unknown Quote as of 2026-09-09 16:07:15.161 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	1	89.6%	0.977	$50.20	$53.20	$41.90		—	$0.00	$0.75	—	—	—	—
Call · $165 In the money Daily-bar session May 12, 2026 Quote as of 2026-09-09 17:03:32.540 UTC Last $41.90 Breakeven $206.90 Implied vol 89.6% Delta 0.977 ≈98% ITM Gamma 0.002 Theta -0.107 Vega 0.018 Open interest — OI effective date — Model this call Put · $165 Daily-bar session Unknown Quote as of 2026-09-09 16:08:08.179 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	1	98.9%	0.949	$45.90	$48.50	$37.20		$3.97	$0.00	$0.75	—	—	1	1
Call · $170 In the money Daily-bar session May 12, 2026 Quote as of 2026-09-09 17:25:01.061 UTC Last $37.20 Breakeven $207.20 Implied vol 98.9% Delta 0.949 ≈95% ITM Gamma 0.003 Theta -0.212 Vega 0.036 Open interest — OI effective date — Model this call Put · $170 Daily-bar session May 11, 2026 Quote as of 2026-09-09 16:08:50.696 UTC Last $3.97 Breakeven $166.03 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 4, 2026 Model this put
—	—	63.3%	0.986	$40.30	$42.80	—		$2.60	$0.00	$0.75	—	—	26	6
Call · $175 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:24:49.390 UTC Last — Breakeven — Implied vol 63.3% Delta 0.986 ≈99% ITM Gamma 0.002 Theta -0.061 Vega 0.012 Open interest — OI effective date — Model this call Put · $175 Daily-bar session Apr 30, 2026 Quote as of 2026-09-09 17:16:10.789 UTC Last $2.60 Breakeven $172.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 4, 2026 Model this put
—	2	74.3%	0.95	$35.40	$38.60	$64.20		$0.17	$0.00	$0.75	—	—	3	3
Call · $180 In the money Daily-bar session Feb 5, 2026 Quote as of 2026-09-09 17:24:49.235 UTC Last $64.20 Breakeven $244.20 Implied vol 74.3% Delta 0.95 ≈95% ITM Gamma 0.004 Theta -0.163 Vega 0.035 Open interest — OI effective date — Model this call Put · $180 Daily-bar session Aug 11, 2026 Quote as of 2026-09-09 17:20:00.163 UTC Last $0.17 Breakeven $179.83 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 4, 2026 Model this put
—	1	43.8%	0.99	$30.20	$32.80	$59.70		—	$0.00	$0.75	—	—	—	—
Call · $185 In the money Daily-bar session Feb 5, 2026 Quote as of 2026-09-09 17:32:08.721 UTC Last $59.70 Breakeven $244.70 Implied vol 43.8% Delta 0.99 ≈99% ITM Gamma 0.002 Theta -0.041 Vega 0.009 Open interest — OI effective date — Model this call Put · $185 Daily-bar session Unknown Quote as of 2026-09-09 17:03:32.540 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	1	52.3%	0.948	$25.20	$28.50	$59.50		$0.75	$0.00	$0.75	—	—	1	1
Call · $190 In the money Daily-bar session Feb 5, 2026 Quote as of 2026-09-09 17:16:05.206 UTC Last $59.50 Breakeven $249.50 Implied vol 52.3% Delta 0.948 ≈95% ITM Gamma 0.006 Theta -0.122 Vega 0.036 Open interest — OI effective date — Model this call Put · $190 Daily-bar session Aug 10, 2026 Quote as of 2026-09-09 17:20:27.219 UTC Last $0.75 Breakeven $189.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 4, 2026 Model this put
—	—	48.2%	0.922	$20.50	$23.60	—		$1.40	$0.00	$0.75	—	—	1	4
Call · $195 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:03:32.540 UTC Last — Breakeven — Implied vol 48.2% Delta 0.922 ≈92% ITM Gamma 0.009 Theta -0.15 Vega 0.05 Open interest — OI effective date — Model this call Put · $195 Daily-bar session Aug 4, 2026 Quote as of 2026-09-09 17:03:34.673 UTC Last $1.40 Breakeven $193.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 4, 2026 Model this put
—	2	40.7%	0.898	$15.70	$18.60	$17.50		$2.49	$0.00	$0.75	—	—	1	3
Call · $200 In the money Daily-bar session May 12, 2026 Quote as of 2026-09-09 15:03:24.081 UTC Last $17.50 Breakeven $217.50 Implied vol 40.7% Delta 0.898 ≈90% ITM Gamma 0.013 Theta -0.155 Vega 0.061 Open interest — OI effective date — Model this call Put · $200 Daily-bar session Jul 28, 2026 Quote as of 2026-09-09 17:20:27.220 UTC Last $2.49 Breakeven $197.51 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 4, 2026 Model this put
9	3	28.7%	0.757	$6.60	$9.20	$11.90		$0.80	$0.65	$3.20	-0.271	33.2%	1	67
Call · $210 In the money Daily-bar session Jul 23, 2026 Quote as of 2026-09-09 17:20:27.220 UTC Last $11.90 Breakeven $221.90 Implied vol 28.7% Delta 0.757 ≈76% ITM Gamma 0.032 Theta -0.185 Vega 0.106 Open interest 9 OI effective date Sep 4, 2026 Model this call Put · $210 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 17:32:58.951 UTC Last $0.80 Breakeven $209.20 Implied vol 33.2% Delta -0.271 ≈27% ITM Gamma 0.029 Theta -0.201 Vega 0.113 Open interest 67 OI effective date Sep 4, 2026 Model this put
Underlying $216.25
6	1	29.4%	0.372	$1.30	$3.70	$2.75		$1.88	$4.10	$5.90	-0.68	21.3%	3	18
Call · $220 Daily-bar session Sep 8, 2026 Quote as of 2026-09-09 17:32:56.252 UTC Last $2.75 Breakeven $222.75 Implied vol 29.4% Delta 0.372 ≈37% ITM Gamma 0.038 Theta -0.218 Vega 0.129 Open interest 6 OI effective date Sep 4, 2026 Model this call Put · $220 In the money Daily-bar session Aug 27, 2026 Quote as of 2026-09-09 17:25:00.155 UTC Last $1.88 Breakeven $218.12 Implied vol 21.3% Delta -0.68 ≈68% ITM Gamma 0.05 Theta -0.128 Vega 0.122 Open interest 18 OI effective date Sep 4, 2026 Model this put
143	9	—	—	$0.00	$2.00	$7.30		$3.93	$11.80	$14.60	—	—	5	21
Call · $230 Daily-bar session Sep 2, 2026 Quote as of 2026-09-09 17:08:58.567 UTC Last $7.30 Breakeven $237.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 143 OI effective date Sep 4, 2026 Model this call Put · $230 In the money Daily-bar session Aug 28, 2026 Quote as of 2026-09-09 17:25:32.148 UTC Last $3.93 Breakeven $226.07 Implied vol — Delta — Gamma — Theta — Vega — Open interest 21 OI effective date Sep 4, 2026 Model this put
41	1	—	—	$0.00	$0.35	$0.91		$15.64	$21.80	$24.30	—	—	1	—
Call · $240 Daily-bar session Sep 1, 2026 Quote as of 2026-09-09 17:16:05.206 UTC Last $0.91 Breakeven $240.91 Implied vol — Delta — Gamma — Theta — Vega — Open interest 41 OI effective date Sep 4, 2026 Model this call Put · $240 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-09 17:25:04.159 UTC Last $15.64 Breakeven $224.36 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
162	1	—	—	$0.00	$0.75	$0.84		$29.50	$32.10	$34.60	—	—	2	—
Call · $250 Daily-bar session Aug 28, 2026 Quote as of 2026-09-09 17:15:45.166 UTC Last $0.84 Breakeven $250.84 Implied vol — Delta — Gamma — Theta — Vega — Open interest 162 OI effective date Sep 4, 2026 Model this call Put · $250 In the money Daily-bar session Apr 14, 2026 Quote as of 2026-09-09 16:17:42.203 UTC Last $29.50 Breakeven $220.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
13	12	—	—	$0.00	$0.25	$0.19		$20.01	$42.10	$44.30	—	—	1	—
Call · $260 Daily-bar session Aug 28, 2026 Quote as of 2026-09-09 17:15:49.281 UTC Last $0.19 Breakeven $260.19 Implied vol — Delta — Gamma — Theta — Vega — Open interest 13 OI effective date Sep 4, 2026 Model this call Put · $260 In the money Daily-bar session Feb 20, 2026 Quote as of 2026-09-09 17:24:49.279 UTC Last $20.01 Breakeven $239.99 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	2	—	—	$0.00	$0.95	$2.45		$59.00	$51.70	$54.40	—	—	1	—
Call · $270 Daily-bar session Apr 16, 2026 Quote as of 2026-09-09 17:20:27.220 UTC Last $2.45 Breakeven $272.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 4, 2026 Model this call Put · $270 In the money Daily-bar session Jul 14, 2026 Quote as of 2026-09-09 17:24:49.285 UTC Last $59.00 Breakeven $211.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
18	4	—	—	$0.00	$0.20	$1.42		—	$61.70	$65.00	—	—	—	—
Call · $280 Daily-bar session Mar 12, 2026 Quote as of 2026-09-09 17:31:28.921 UTC Last $1.42 Breakeven $281.42 Implied vol — Delta — Gamma — Theta — Vega — Open interest 18 OI effective date Sep 4, 2026 Model this call Put · $280 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:26:53.108 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
40	2	—	—	$0.00	$0.25	$0.35		—	$71.80	$74.70	—	—	—	—
Call · $290 Daily-bar session Aug 3, 2026 Quote as of 2026-09-09 17:29:05.996 UTC Last $0.35 Breakeven $290.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 40 OI effective date Sep 4, 2026 Model this call Put · $290 In the money Daily-bar session Unknown Quote as of 2026-09-09 16:17:42.203 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$0.75	$2.60		—	$81.70	$84.80	—	—	—	—
Call · $300 Daily-bar session Feb 6, 2026 Quote as of 2026-09-09 16:07:15.165 UTC Last $2.60 Breakeven $302.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 4, 2026 Model this call Put · $300 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:30:46.641 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$92.10	$94.30	—	—	—	—
Call · $310 Daily-bar session Unknown Quote as of 2026-09-09 16:08:08.183 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $310 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:24:49.390 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$101.70	$104.60	—	—	—	—
Call · $320 Daily-bar session Unknown Quote as of 2026-09-09 16:24:47.081 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $320 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:26:53.017 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$111.70	$115.00	—	—	—	—
Call · $330 Daily-bar session Unknown Quote as of 2026-09-09 17:16:05.206 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $330 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:26:53.013 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		$136.00	$121.70	$124.90	—	—	1	—
Call · $340 Daily-bar session Unknown Quote as of 2026-09-09 17:20:27.220 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $340 In the money Daily-bar session May 12, 2026 Quote as of 2026-09-09 17:26:53.099 UTC Last $136.00 Breakeven $204.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$131.70	$135.00	—	—	—	—
Call · $350 Daily-bar session Unknown Quote as of 2026-09-09 16:19:40.668 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $350 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:29:51.850 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$141.70	$144.70	—	—	—	—
Call · $360 Daily-bar session Unknown Quote as of 2026-09-09 17:20:27.220 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 2026-09-09 16:17:42.212 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$151.70	$154.60	—	—	—	—
Call · $370 Daily-bar session Unknown Quote as of 2026-09-09 14:46:53.344 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $370 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:26:53.017 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$161.70	$164.80	—	—	—	—
Call · $380 Daily-bar session Unknown Quote as of 2026-09-09 17:24:50.450 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $380 In the money Daily-bar session Unknown Quote as of 2026-09-09 17:26:53.016 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.95	—		$178.00	$171.70	$174.80	—	—	1	—
Call · $390 Daily-bar session Unknown Quote as of 2026-09-09 16:49:52.018 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $390 In the money Daily-bar session Jul 14, 2026 Quote as of 2026-09-09 17:26:53.017 UTC Last $178.00 Breakeven $212.00 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 · Feb 5, 2026–Sep 8, 2026; 30 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 25 strikes around the money are shown by default — switch to "All 32" 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 1757898 CUSIP G8473T100 13F (30d) 417 filings 413 filers Visit website Investor relations