COMB · GraniteShares Bloomberg Commodity Broad Strategy No K-1 ETF ETF

Alerts for COMB

$27.99 -0.14 (-0.50%) At close · Sep 4

Options Chain

Underlying $27.99 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 42 contracts · mixed daily-bar sessions · Aug 20, 2026–Aug 31, 2026; 40 unknown

Put / call OI

—

No open interest

Open interest

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$27.00

$0.99 below spot

ATM implied vol

23.7%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 13d Oct 16 41d Jan 15 132d Apr 16 223d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$11.70	$14.10	—		—	$0.00	$0.75	—	—	—	—
Call · $15 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:10.771 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $15 Daily-bar session Unknown Quote as of 2026-09-04 19:55:08.076 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$10.70	$13.10	—		—	$0.00	$0.75	—	—	—	—
Call · $16 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:10.603 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $16 Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.716 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$10.20	$11.70	—		—	$0.00	$0.75	—	—	—	—
Call · $17 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:10.475 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $17 Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.241 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$9.20	$10.70	—		—	$0.00	$0.75	—	—	—	—
Call · $18 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:10.260 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $18 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.872 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$8.20	$9.70	—		—	$0.00	$0.75	—	—	—	—
Call · $19 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:10.004 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $19 Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.432 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$7.20	$8.70	—		—	$0.00	$0.75	—	—	—	—
Call · $20 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.782 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $20 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.925 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$6.20	$7.70	—		—	$0.00	$0.75	—	—	—	—
Call · $21 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.186 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $21 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.459 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$5.20	$6.70	—		—	$0.00	$0.75	—	—	—	—
Call · $22 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:08.521 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $22 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.994 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$4.30	$5.50	—		—	$0.00	$0.75	—	—	—	—
Call · $23 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:07.662 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $23 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.430 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$3.40	$4.60	—		—	$0.00	$0.75	—	—	—	—
Call · $24 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:06.657 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 19:55:03.972 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$2.30	$3.50	—		—	$0.00	$0.75	—	—	—	—
Call · $25 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.341 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 19:55:03.560 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	71.1%	0.734	$1.65	$3.70	—		$0.26	$0.00	$0.75	—	—	1	1
Call · $26 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.318 UTC Last — Breakeven — Implied vol 71.1% Delta 0.734 ≈73% ITM Gamma 0.087 Theta -0.049 Vega 0.017 Open interest — OI effective date — Model this call Put · $26 Daily-bar session Aug 20, 2026 Quote as of 2026-09-04 19:55:03.012 UTC Last $0.26 Breakeven $25.74 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	53.8%	0.662	$0.75	$2.65	—		$0.25	$0.00	$0.75	—	—	1	2
Call · $27 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.438 UTC Last — Breakeven — Implied vol 53.8% Delta 0.662 ≈66% ITM Gamma 0.129 Theta -0.042 Vega 0.019 Open interest — OI effective date — Model this call Put · $27 Daily-bar session Aug 31, 2026 Quote as of 2026-09-04 19:55:02.831 UTC Last $0.25 Breakeven $26.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this put
Underlying $27.99
—	—	21.9%	0.517	$0.10	$0.85	—		—	$0.15	$0.90	-0.483	25.6%	—	—
Call · $28 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.690 UTC Last — Breakeven — Implied vol 21.9% Delta 0.517 ≈52% ITM Gamma 0.344 Theta -0.019 Vega 0.021 Open interest — OI effective date — Model this call Put · $28 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.499 UTC Last — Breakeven — Implied vol 25.6% Delta -0.483 ≈48% ITM Gamma 0.295 Theta -0.019 Vega 0.021 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$0.00	$1.70	—	—	—	—
Call · $29 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.766 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $29 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.325 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$0.70	$2.60	—	—	—	—
Call · $30 Daily-bar session Unknown Quote as of 2026-09-04 19:55:02.951 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 19:55:04.200 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$2.50	$3.70	-0.881	43.7%	—	—
Call · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.500 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 19:55:05.222 UTC Last — Breakeven — Implied vol 43.7% Delta -0.881 ≈88% ITM Gamma 0.086 Theta -0.015 Vega 0.011 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$3.50	$4.70	-0.898	53.3%	—	—
Call · $32 Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.912 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 19:55:06.549 UTC Last — Breakeven — Implied vol 53.3% Delta -0.898 ≈90% ITM Gamma 0.063 Theta -0.016 Vega 0.009 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$4.50	$5.70	-0.909	62.2%	—	—
Call · $33 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.376 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 19:55:07.558 UTC Last — Breakeven — Implied vol 62.2% Delta -0.909 ≈91% ITM Gamma 0.05 Theta -0.018 Vega 0.009 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$5.30	$6.80	-0.939	63.6%	—	—
Call · $34 Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.937 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 19:55:08.426 UTC Last — Breakeven — Implied vol 63.6% Delta -0.939 ≈94% ITM Gamma 0.036 Theta -0.012 Vega 0.006 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$6.30	$7.80	-0.944	71.2%	—	—
Call · $35 Daily-bar session Unknown Quote as of 2026-09-04 19:55:05.398 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 19:55:09.095 UTC Last — Breakeven — Implied vol 71.2% Delta -0.944 ≈94% ITM Gamma 0.03 Theta -0.013 Vega 0.006 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 20, 2026–Aug 31, 2026; 40 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.