SRTY · ProShares UltraPro Short Russell2000 ETF

Alerts for SRTY

$22.50 -0.13 (-0.57%) At close · Sep 4

Options Chain

Underlying $22.50 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 44 contracts · mixed daily-bar sessions · Aug 3, 2026–Sep 4, 2026; 15 unknown

Put / call OI

0.27

Call-heavy positioning

Open interest

1,554

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$21.00

$1.50 below spot

ATM implied vol

46.9%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 12d Oct 16 40d Nov 20 75d Feb 19 166d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$9.30	$10.00	—		—	$0.00	$0.05	—	—	—	—
Call · $13 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.491 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $13 Daily-bar session Unknown Quote as of 2026-09-04 19:59:34.236 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$8.10	$9.00	—		—	$0.00	$0.05	—	—	—	—
Call · $14 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.573 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $14 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.936 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	—	—	$7.30	$8.00	$6.73		$0.03	$0.00	$0.05	—	—	1	1
Call · $15 In the money Daily-bar session Aug 21, 2026 Quote as of 2026-09-04 19:59:21.917 UTC Last $6.73 Breakeven $21.73 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $15 Daily-bar session Aug 21, 2026 Quote as of 2026-09-04 19:58:48.703 UTC Last $0.03 Breakeven $14.97 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
1	1	—	—	$6.30	$7.00	$6.78		$0.03	$0.00	$0.05	—	—	1	1
Call · $16 In the money Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:59:21.352 UTC Last $6.78 Breakeven $22.78 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $16 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:58:48.702 UTC Last $0.03 Breakeven $15.97 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	103.6%	0.938	$5.30	$6.00	—		—	$0.00	$0.05	—	—	—	—
Call · $17 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:28.335 UTC Last — Breakeven — Implied vol 103.6% Delta 0.938 ≈94% ITM Gamma 0.028 Theta -0.022 Vega 0.005 Open interest — OI effective date — Model this call Put · $17 Daily-bar session Unknown Quote as of 2026-09-04 19:58:48.703 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	1	62.7%	0.975	$4.10	$5.00	$4.78		$0.05	$0.00	$0.05	—	—	1	2
Call · $18 In the money Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:59:38.325 UTC Last $4.78 Breakeven $22.78 Implied vol 62.7% Delta 0.975 ≈97% ITM Gamma 0.022 Theta -0.008 Vega 0.003 Open interest 2 OI effective date Sep 3, 2026 Model this call Put · $18 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:55:10.746 UTC Last $0.05 Breakeven $17.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this put
1	1	61.5%	0.937	$3.20	$4.00	$3.03		$0.05	$0.00	$0.10	—	—	20	220
Call · $19 In the money Daily-bar session Aug 24, 2026 Quote as of 2026-09-04 19:59:31.652 UTC Last $3.03 Breakeven $22.03 Implied vol 61.5% Delta 0.937 ≈94% ITM Gamma 0.048 Theta -0.014 Vega 0.005 Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $19 Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:59:57.542 UTC Last $0.05 Breakeven $18.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 220 OI effective date Sep 3, 2026 Model this put
37	4	36.3%	0.962	$2.30	$2.80	$2.60		$0.54	$0.00	$0.10	—	—	1	51
Call · $20 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:59:31.461 UTC Last $2.60 Breakeven $22.60 Implied vol 36.3% Delta 0.962 ≈96% ITM Gamma 0.054 Theta -0.007 Vega 0.004 Open interest 37 OI effective date Sep 3, 2026 Model this call Put · $20 Daily-bar session Aug 3, 2026 Quote as of 2026-09-04 19:59:21.352 UTC Last $0.54 Breakeven $19.46 Implied vol — Delta — Gamma — Theta — Vega — Open interest 51 OI effective date Sep 3, 2026 Model this put
22	3	41.6%	0.825	$1.55	$1.85	$2.37		$0.19	$0.15	$0.25	-0.188	44%	2	40
Call · $21 In the money Daily-bar session Sep 2, 2026 Quote as of 2026-09-04 19:59:31.266 UTC Last $2.37 Breakeven $23.37 Implied vol 41.6% Delta 0.825 ≈82% ITM Gamma 0.146 Theta -0.019 Vega 0.011 Open interest 22 OI effective date Sep 3, 2026 Model this call Put · $21 Daily-bar session Sep 2, 2026 Quote as of 2026-09-04 19:59:36.549 UTC Last $0.19 Breakeven $20.81 Implied vol 44% Delta -0.188 ≈19% ITM Gamma 0.144 Theta -0.019 Vega 0.011 Open interest 40 OI effective date Sep 3, 2026 Model this put
606	1	45.2%	0.626	$0.95	$1.15	$1.00		$0.60	$0.50	$0.65	-0.38	48.5%	2	7
Call · $22 In the money Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:59:59.960 UTC Last $1.00 Breakeven $23.00 Implied vol 45.2% Delta 0.626 ≈63% ITM Gamma 0.197 Theta -0.029 Vega 0.016 Open interest 606 OI effective date Sep 3, 2026 Model this call Put · $22 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:59:59.994 UTC Last $0.60 Breakeven $21.40 Implied vol 48.5% Delta -0.38 ≈38% ITM Gamma 0.185 Theta -0.029 Vega 0.016 Open interest 7 OI effective date Sep 3, 2026 Model this put
Underlying $22.50
177	5	49%	0.43	$0.55	$0.70	$0.65		$1.15	$1.05	$1.20	-0.567	50.8%	1	2
Call · $23 Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:59:59.960 UTC Last $0.65 Breakeven $23.65 Implied vol 49% Delta 0.43 ≈43% ITM Gamma 0.189 Theta -0.032 Vega 0.017 Open interest 177 OI effective date Sep 3, 2026 Model this call Put · $23 In the money Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:59:59.994 UTC Last $1.15 Breakeven $21.85 Implied vol 50.8% Delta -0.567 ≈57% ITM Gamma 0.182 Theta -0.031 Vega 0.017 Open interest 2 OI effective date Sep 3, 2026 Model this put
90	4	53.3%	0.281	$0.30	$0.45	$0.40		$3.46	$1.75	$2.05	-0.703	57.1%	1	1
Call · $24 Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:59:59.994 UTC Last $0.40 Breakeven $24.40 Implied vol 53.3% Delta 0.281 ≈28% ITM Gamma 0.149 Theta -0.03 Vega 0.014 Open interest 90 OI effective date Sep 3, 2026 Model this call Put · $24 In the money Daily-bar session Aug 7, 2026 Quote as of 2026-09-04 19:59:55.606 UTC Last $3.46 Breakeven $20.54 Implied vol 57.1% Delta -0.703 ≈70% ITM Gamma 0.143 Theta -0.031 Vega 0.015 Open interest 1 OI effective date Sep 3, 2026 Model this put
114	11	59.1%	0.19	$0.20	$0.30	$0.55		$3.32	$2.60	$2.90	-0.797	61.9%	1	3
Call · $25 Daily-bar session Sep 2, 2026 Quote as of 2026-09-04 19:59:57.775 UTC Last $0.55 Breakeven $25.55 Implied vol 59.1% Delta 0.19 ≈19% ITM Gamma 0.108 Theta -0.027 Vega 0.012 Open interest 114 OI effective date Sep 3, 2026 Model this call Put · $25 In the money Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:59:59.851 UTC Last $3.32 Breakeven $21.68 Implied vol 61.9% Delta -0.797 ≈80% ITM Gamma 0.107 Theta -0.027 Vega 0.012 Open interest 3 OI effective date Sep 3, 2026 Model this put
66	1	64.7%	0.133	$0.10	$0.25	$0.20		$4.37	$3.50	$3.80	-0.863	65.7%	1	1
Call · $26 Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:59:56.339 UTC Last $0.20 Breakeven $26.20 Implied vol 64.7% Delta 0.133 ≈13% ITM Gamma 0.078 Theta -0.023 Vega 0.009 Open interest 66 OI effective date Sep 3, 2026 Model this call Put · $26 In the money Daily-bar session Aug 3, 2026 Quote as of 2026-09-04 19:59:56.497 UTC Last $4.37 Breakeven $21.63 Implied vol 65.7% Delta -0.863 ≈86% ITM Gamma 0.079 Theta -0.021 Vega 0.009 Open interest 1 OI effective date Sep 3, 2026 Model this put
13	1	69.7%	0.095	$0.05	$0.20	$0.29		$3.86	$4.10	$4.80	—	—	1	2
Call · $27 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:52.751 UTC Last $0.29 Breakeven $27.29 Implied vol 69.7% Delta 0.095 ≈10% ITM Gamma 0.057 Theta -0.019 Vega 0.007 Open interest 13 OI effective date Sep 3, 2026 Model this call Put · $27 In the money Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:21.917 UTC Last $3.86 Breakeven $23.14 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this put
21	2	—	—	$0.00	$0.15	$0.20		—	$5.10	$6.00	-0.933	73.4%	—	—
Call · $28 Daily-bar session Sep 2, 2026 Quote as of 2026-09-04 19:59:33.021 UTC Last $0.20 Breakeven $28.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 21 OI effective date Sep 3, 2026 Model this call Put · $28 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.067 UTC Last — Breakeven — Implied vol 73.4% Delta -0.933 ≈93% ITM Gamma 0.042 Theta -0.013 Vega 0.006 Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$0.15	$0.10		—	$6.10	$6.70	—	—	—	—
Call · $29 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:58:48.703 UTC Last $0.10 Breakeven $29.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $29 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.251 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
19	17	—	—	$0.00	$0.10	$0.12		—	$7.10	$7.60	—	—	—	—
Call · $30 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:58:48.703 UTC Last $0.12 Breakeven $30.12 Implied vol — Delta — Gamma — Theta — Vega — Open interest 19 OI effective date Sep 3, 2026 Model this call Put · $30 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.461 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$8.10	$8.80	—	—	—	—
Call · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:58:48.703 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $31 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:22.138 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	2	—	—	$0.00	$0.10	$0.11		—	$9.10	$9.80	—	—	—	—
Call · $32 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:34.243 UTC Last $0.11 Breakeven $32.11 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this call Put · $32 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:21.916 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$10.10	$11.00	—	—	—	—
Call · $33 Daily-bar session Unknown Quote as of 2026-09-04 19:59:21.352 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $33 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.873 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
50	50	—	—	$0.00	$0.10	$0.10		—	$12.10	$13.00	—	—	—	—
Call · $35 Daily-bar session Aug 21, 2026 Quote as of 2026-09-04 19:58:48.703 UTC Last $0.10 Breakeven $35.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 50 OI effective date Sep 3, 2026 Model this call Put · $35 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:21.924 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 · Aug 3, 2026–Sep 4, 2026; 15 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. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.