SRLN · State Street(R) Blackstone Senior Loan ETF ETF

Alerts for SRLN

$40.57 +0.04 (+0.10%) At close · Sep 4

Options Chain

Underlying $40.57 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 38 contracts · mixed daily-bar sessions · Jul 23, 2026–Aug 19, 2026; 35 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

$40.00

$0.57 below spot

ATM implied vol

8.3%

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
—	—	71.4%	0.981	$8.90	$10.40	—		—	$0.00	$0.75	—	—	—	—
Call · $31 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.292 UTC Last — Breakeven — Implied vol 71.4% Delta 0.981 ≈98% ITM Gamma 0.009 Theta -0.013 Vega 0.004 Open interest — OI effective date — Model this call Put · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.720 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	63.7%	0.98	$7.90	$9.40	—		—	$0.00	$0.75	—	—	—	—
Call · $32 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.301 UTC Last — Breakeven — Implied vol 63.7% Delta 0.98 ≈98% ITM Gamma 0.01 Theta -0.012 Vega 0.004 Open interest — OI effective date — Model this call Put · $32 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.664 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	56.3%	0.978	$6.90	$8.40	—		—	$0.00	$0.75	—	—	—	—
Call · $33 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.291 UTC Last — Breakeven — Implied vol 56.3% Delta 0.978 ≈98% ITM Gamma 0.012 Theta -0.012 Vega 0.004 Open interest — OI effective date — Model this call Put · $33 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.580 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	49.1%	0.976	$5.90	$7.40	—		—	$0.00	$0.75	—	—	—	—
Call · $34 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.289 UTC Last — Breakeven — Implied vol 49.1% Delta 0.976 ≈98% ITM Gamma 0.015 Theta -0.012 Vega 0.004 Open interest — OI effective date — Model this call Put · $34 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.495 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	49.7%	0.949	$5.10	$6.30	—		—	$0.00	$0.75	—	—	—	—
Call · $35 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.296 UTC Last — Breakeven — Implied vol 49.7% Delta 0.949 ≈95% ITM Gamma 0.028 Theta -0.019 Vega 0.008 Open interest — OI effective date — Model this call Put · $35 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.401 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	41.9%	0.941	$4.10	$5.30	—		—	$0.00	$0.75	—	—	—	—
Call · $36 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.291 UTC Last — Breakeven — Implied vol 41.9% Delta 0.941 ≈94% ITM Gamma 0.036 Theta -0.018 Vega 0.009 Open interest — OI effective date — Model this call Put · $36 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.309 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	34.1%	0.931	$3.10	$4.30	—		—	$0.00	$0.75	—	—	—	—
Call · $37 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.296 UTC Last — Breakeven — Implied vol 34.1% Delta 0.931 ≈93% ITM Gamma 0.051 Theta -0.017 Vega 0.01 Open interest — OI effective date — Model this call Put · $37 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.288 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$2.00	$3.20	—		—	$0.00	$0.75	—	—	—	—
Call · $38 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.292 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $38 Daily-bar session Unknown Quote as of 2026-09-04 19:59:50.002 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	16.4%	0.908	$1.30	$2.05	—		—	$0.00	$0.75	—	—	—	—
Call · $39 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.940 UTC Last — Breakeven — Implied vol 16.4% Delta 0.908 ≈91% ITM Gamma 0.131 Theta -0.012 Vega 0.013 Open interest — OI effective date — Model this call Put · $39 Daily-bar session Unknown Quote as of 2026-09-04 19:59:50.002 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
40	10	8.3%	0.841	$0.30	$1.05	$0.92		—	$0.00	$0.15	—	—	—	—
Call · $40 In the money Daily-bar session Aug 19, 2026 Quote as of 2026-09-04 19:59:53.291 UTC Last $0.92 Breakeven $40.92 Implied vol 8.3% Delta 0.841 ≈84% ITM Gamma 0.383 Theta -0.009 Vega 0.019 Open interest 40 OI effective date Sep 3, 2026 Model this call Put · $40 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.496 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $40.57
6	6	—	—	$0.00	$0.75	$0.05		—	$0.00	$0.75	—	—	—	—
Call · $41 Daily-bar session Aug 14, 2026 Quote as of 2026-09-04 19:59:31.088 UTC Last $0.05 Breakeven $41.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 3, 2026 Model this call Put · $41 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.090 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
12	12	—	—	$0.00	$0.75	$0.07		—	$1.00	$1.75	—	—	—	—
Call · $42 Daily-bar session Jul 23, 2026 Quote as of 2026-09-04 19:59:31.106 UTC Last $0.07 Breakeven $42.07 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 OI effective date Sep 3, 2026 Model this call Put · $42 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.291 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$2.00	$2.75	-0.997	11.1%	—	—
Call · $43 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.192 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $43 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.304 UTC Last — Breakeven — Implied vol 11.1% Delta -0.997 ≈100% ITM Gamma 0.012 Theta 0.004 Vega 0.001 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$2.70	$3.90	—	—	—	—
Call · $44 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.287 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $44 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.289 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$3.80	$5.00	-0.967	29.1%	—	—
Call · $45 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.303 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $45 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.303 UTC Last — Breakeven — Implied vol 29.1% Delta -0.967 ≈97% ITM Gamma 0.033 Theta -0.002 Vega 0.006 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$4.80	$6.00	-0.97	34.4%	—	—
Call · $46 Daily-bar session Unknown Quote as of 2026-09-04 19:59:50.002 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $46 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.291 UTC Last — Breakeven — Implied vol 34.4% Delta -0.97 ≈97% ITM Gamma 0.026 Theta -0.002 Vega 0.005 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$5.60	$7.10	—	—	—	—
Call · $47 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.484 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $47 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.289 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$6.60	$8.10	—	—	—	—
Call · $48 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.573 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $48 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.292 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$7.60	$9.10	—	—	—	—
Call · $49 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.620 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $49 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:53.304 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 · Jul 23, 2026–Aug 19, 2026; 35 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.