SEF · ProShares Short Financials ETF

Alerts for SEF

$29.22 +0.25 (+0.85%) At close · Sep 4

Options Chain

Underlying $29.22 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 42 contracts · mixed daily-bar sessions · Sep 2, 2026; 41 unknown

Put / call OI

0.00

Call-heavy positioning

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$33.00

$3.78 above spot

ATM implied vol

26.8%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 13d Nov 20 76d Feb 19 167d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	75.5%	0.997	$8.30	$10.20	—		—	$0.00	$0.90	—	—	—	—
Call · $20 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.671 UTC Last — Breakeven — Implied vol 75.5% Delta 0.997 ≈100% ITM Gamma 0.002 Theta -0.004 Vega 0.001 Open interest — OI effective date — Model this call Put · $20 Daily-bar session Unknown Quote as of 2026-09-04 19:00:12.949 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	63.9%	0.998	$7.30	$9.20	—		—	$0.00	$0.90	—	—	—	—
Call · $21 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.634 UTC Last — Breakeven — Implied vol 63.9% Delta 0.998 ≈100% ITM Gamma 0.002 Theta -0.003 Vega 0 Open interest — OI effective date — Model this call Put · $21 Daily-bar session Unknown Quote as of 2026-09-04 19:48:59.444 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	52.2%	0.998	$6.30	$8.20	—		—	$0.00	$0.90	—	—	—	—
Call · $22 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.579 UTC Last — Breakeven — Implied vol 52.2% Delta 0.998 ≈100% ITM Gamma 0.002 Theta -0.003 Vega 0 Open interest — OI effective date — Model this call Put · $22 Daily-bar session Unknown Quote as of 2026-09-04 19:59:06.551 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	36.1%	1	$5.30	$7.20	—		—	$0.00	$0.90	—	—	—	—
Call · $23 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.524 UTC Last — Breakeven — Implied vol 36.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.002 Vega 0 Open interest — OI effective date — Model this call Put · $23 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.538 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$4.30	$6.20	—		—	$0.00	$0.90	—	—	—	—
Call · $24 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.437 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $24 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.448 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$3.30	$5.20	—		—	$0.00	$0.90	—	—	—	—
Call · $25 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.332 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $25 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.351 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$2.25	$4.20	—		—	$0.00	$0.90	—	—	—	—
Call · $26 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.240 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $26 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.235 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	24.1%	0.963	$1.35	$3.20	—		—	$0.00	$0.90	—	—	—	—
Call · $27 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.179 UTC Last — Breakeven — Implied vol 24.1% Delta 0.963 ≈96% ITM Gamma 0.061 Theta -0.007 Vega 0.004 Open interest — OI effective date — Model this call Put · $27 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.115 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.35	$2.15	—		—	$0.00	$0.90	—	—	—	—
Call · $28 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.100 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $28 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.142 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	26.8%	0.579	$0.10	$1.35	—		—	$0.00	$1.05	—	—	—	—
Call · $29 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:56:27.202 UTC Last — Breakeven — Implied vol 26.8% Delta 0.579 ≈58% ITM Gamma 0.265 Theta -0.024 Vega 0.022 Open interest — OI effective date — Model this call Put · $29 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.112 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $29.22
—	—	—	—	$0.00	$1.00	—		—	$0.00	$1.80	—	—	—	—
Call · $30 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.099 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $30 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.163 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.90	—		—	$0.90	$2.70	-0.9	23.5%	—	—
Call · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.151 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 19:55:01.103 UTC Last — Breakeven — Implied vol 23.5% Delta -0.9 ≈90% ITM Gamma 0.135 Theta -0.006 Vega 0.01 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.90	—		—	$1.85	$3.70	-0.945	29.2%	—	—
Call · $32 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.124 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $32 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.109 UTC Last — Breakeven — Implied vol 29.2% Delta -0.945 ≈95% ITM Gamma 0.069 Theta -0.004 Vega 0.006 Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$0.90	$0.10		—	$2.85	$4.70	-0.954	37.1%	—	—
Call · $33 Daily-bar session Sep 2, 2026 Quote as of 2026-09-04 19:55:01.309 UTC Last $0.10 Breakeven $33.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $33 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.290 UTC Last — Breakeven — Implied vol 37.1% Delta -0.954 ≈95% ITM Gamma 0.047 Theta -0.004 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.90	—		—	$3.80	$5.70	-0.981	37.8%	—	—
Call · $34 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.394 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $34 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.392 UTC Last — Breakeven — Implied vol 37.8% Delta -0.981 ≈98% ITM Gamma 0.022 Theta 0 Vega 0.003 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.90	—		—	$4.80	$6.70	-0.982	44.4%	—	—
Call · $35 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.505 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $35 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.480 UTC Last — Breakeven — Implied vol 44.4% Delta -0.982 ≈98% ITM Gamma 0.018 Theta -0.001 Vega 0.002 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.90	—		—	$5.80	$7.70	-0.983	50.8%	—	—
Call · $36 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.596 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $36 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.557 UTC Last — Breakeven — Implied vol 50.8% Delta -0.983 ≈98% ITM Gamma 0.015 Theta -0.001 Vega 0.002 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.90	—		—	$6.80	$8.70	-0.983	57%	—	—
Call · $37 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.715 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $37 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.603 UTC Last — Breakeven — Implied vol 57% Delta -0.983 ≈98% ITM Gamma 0.013 Theta -0.001 Vega 0.002 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.90	—		—	$7.80	$9.70	-0.984	63%	—	—
Call · $38 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.830 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $38 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.645 UTC Last — Breakeven — Implied vol 63% Delta -0.984 ≈98% ITM Gamma 0.012 Theta -0.002 Vega 0.002 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.90	—		—	$8.80	$10.70	-0.984	68.9%	—	—
Call · $39 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.936 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $39 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.676 UTC Last — Breakeven — Implied vol 68.9% Delta -0.984 ≈98% ITM Gamma 0.011 Theta -0.002 Vega 0.002 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.90	—		—	$9.80	$11.70	-0.984	74.6%	—	—
Call · $40 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.016 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $40 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.691 UTC Last — Breakeven — Implied vol 74.6% Delta -0.984 ≈98% ITM Gamma 0.01 Theta -0.002 Vega 0.002 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 · Sep 2, 2026; 41 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.