GUNR · FlexShares Morningstar Global Upstream Natural Resources Index Fund ETF

Alerts for GUNR

$56.78 -0.35 (-0.61%) At close · Sep 4

Options Chain

Underlying $56.78 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 34 contracts · mixed daily-bar sessions · Feb 25, 2026–Sep 1, 2026; 23 unknown

Put / call OI

0.08

Call-heavy positioning

Open interest

172

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$50.00

$6.78 below spot

ATM implied vol

23.3%

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 Dec 18 103d Mar 19 194d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
3	3	—	—	$20.20	$23.20	$20.71		—	$0.00	$0.50	—	—	—	—
Call · $35 In the money Daily-bar session Feb 25, 2026 Quote as of 2026-09-04 19:59:59.561 UTC Last $20.71 Breakeven $55.71 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 3, 2026 Model this call Put · $35 Daily-bar session Unknown Quote as of 2026-09-04 19:55:09.563 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	2	—	—	$15.50	$17.90	$13.70		—	$0.00	$0.50	—	—	—	—
Call · $40 In the money Daily-bar session Mar 19, 2026 Quote as of 2026-09-04 19:59:34.862 UTC Last $13.70 Breakeven $53.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $40 Daily-bar session Unknown Quote as of 2026-09-04 19:55:08.255 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$10.50	$12.90	—		—	$0.00	$0.50	—	—	—	—
Call · $45 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:34.267 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $45 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.862 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	110.6%	0.869	$9.90	$13.50	—		—	$0.00	$0.50	—	—	—	—
Call · $46 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:34.165 UTC Last — Breakeven — Implied vol 110.6% Delta 0.869 ≈87% ITM Gamma 0.018 Theta -0.101 Vega 0.023 Open interest — OI effective date — Model this call Put · $46 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.747 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	1	104.7%	0.856	$9.00	$12.50	$9.40		—	$0.00	$0.50	—	—	—	—
Call · $47 In the money Daily-bar session Apr 14, 2026 Quote as of 2026-09-04 19:59:34.064 UTC Last $9.40 Breakeven $56.40 Implied vol 104.7% Delta 0.856 ≈86% ITM Gamma 0.02 Theta -0.102 Vega 0.024 Open interest 1 OI effective date Sep 3, 2026 Model this call Put · $47 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.666 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	92.7%	0.854	$8.00	$11.30	—		—	$0.00	$0.50	—	—	—	—
Call · $48 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.962 UTC Last — Breakeven — Implied vol 92.7% Delta 0.854 ≈85% ITM Gamma 0.023 Theta -0.091 Vega 0.025 Open interest — OI effective date — Model this call Put · $48 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.572 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	88.8%	0.834	$7.00	$10.50	—		—	$0.00	$0.50	—	—	—	—
Call · $49 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.783 UTC Last — Breakeven — Implied vol 88.8% Delta 0.834 ≈83% ITM Gamma 0.026 Theta -0.095 Vega 0.027 Open interest — OI effective date — Model this call Put · $49 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.481 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
10	1	75.4%	0.835	$6.00	$9.20	$1.70		—	$0.00	$0.50	—	—	—	—
Call · $50 In the money Daily-bar session Jun 23, 2026 Quote as of 2026-09-04 19:59:33.673 UTC Last $1.70 Breakeven $51.70 Implied vol 75.4% Delta 0.835 ≈84% ITM Gamma 0.031 Theta -0.081 Vega 0.027 Open interest 10 OI effective date Sep 3, 2026 Model this call Put · $50 Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.335 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	44.2%	0.91	$5.10	$7.00	—		$1.00	$0.00	$0.50	—	—	4	9
Call · $51 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:23.068 UTC Last — Breakeven — Implied vol 44.2% Delta 0.91 ≈91% ITM Gamma 0.034 Theta -0.034 Vega 0.017 Open interest — OI effective date — Model this call Put · $51 Daily-bar session Jul 22, 2026 Quote as of 2026-09-04 19:55:01.335 UTC Last $1.00 Breakeven $50.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 9 OI effective date Sep 3, 2026 Model this put
10	11	59.9%	0.801	$4.00	$7.20	$4.82		—	$0.00	$0.75	—	—	—	—
Call · $52 In the money Daily-bar session May 12, 2026 Quote as of 2026-09-04 19:59:33.462 UTC Last $4.82 Breakeven $56.82 Implied vol 59.9% Delta 0.801 ≈80% ITM Gamma 0.043 Theta -0.073 Vega 0.03 Open interest 10 OI effective date Sep 3, 2026 Model this call Put · $52 Daily-bar session Unknown Quote as of 2026-09-04 19:59:36.453 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	56.7%	0.761	$3.20	$6.30	—		—	$0.00	$0.75	—	—	—	—
Call · $53 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:36.447 UTC Last — Breakeven — Implied vol 56.7% Delta 0.761 ≈76% ITM Gamma 0.051 Theta -0.076 Vega 0.033 Open interest — OI effective date — Model this call Put · $53 Daily-bar session Unknown Quote as of 2026-09-04 19:59:36.257 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	55.2%	0.708	$2.20	$5.80	—		—	$0.00	$0.75	—	—	—	—
Call · $54 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.181 UTC Last — Breakeven — Implied vol 55.2% Delta 0.708 ≈71% ITM Gamma 0.058 Theta -0.082 Vega 0.037 Open interest — OI effective date — Model this call Put · $54 Daily-bar session Unknown Quote as of 2026-09-04 19:59:55.057 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
4	1	49.2%	0.657	$1.35	$4.90	$1.80		$1.00	$0.00	$1.65	—	—	3	3
Call · $55 In the money Daily-bar session May 28, 2026 Quote as of 2026-09-04 19:59:33.055 UTC Last $1.80 Breakeven $56.80 Implied vol 49.2% Delta 0.657 ≈66% ITM Gamma 0.07 Theta -0.078 Vega 0.039 Open interest 4 OI effective date Sep 3, 2026 Model this call Put · $55 Daily-bar session Aug 19, 2026 Quote as of 2026-09-04 19:59:35.866 UTC Last $1.00 Breakeven $54.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 3, 2026 Model this put
16	2	18.3%	0.676	$0.95	$1.60	$1.20		—	$0.35	$3.20	-0.419	51.3%	—	—
Call · $56 In the money Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:55:01.335 UTC Last $1.20 Breakeven $57.20 Implied vol 18.3% Delta 0.676 ≈68% ITM Gamma 0.184 Theta -0.031 Vega 0.039 Open interest 16 OI effective date Sep 3, 2026 Model this call Put · $56 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.875 UTC Last — Breakeven — Implied vol 51.3% Delta -0.419 ≈42% ITM Gamma 0.071 Theta -0.08 Vega 0.042 Open interest — OI effective date — Model this put
Underlying $56.78
116	2	18.6%	0.478	$0.45	$1.00	$1.10		—	$0.75	$1.80	-0.509	28.1%	—	—
Call · $57 Daily-bar session Aug 21, 2026 Quote as of 2026-09-04 19:59:59.131 UTC Last $1.10 Breakeven $58.10 Implied vol 18.6% Delta 0.478 ≈48% ITM Gamma 0.2 Theta -0.033 Vega 0.043 Open interest 116 OI effective date Sep 3, 2026 Model this call Put · $57 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:58.858 UTC Last — Breakeven — Implied vol 28.1% Delta -0.509 ≈51% ITM Gamma 0.133 Theta -0.043 Vega 0.043 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$2.80	$4.20	-0.806	32%	—	—
Call · $60 Daily-bar session Unknown Quote as of 2026-09-04 19:59:55.057 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $60 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:04.344 UTC Last — Breakeven — Implied vol 32% Delta -0.806 ≈81% ITM Gamma 0.08 Theta -0.031 Vega 0.03 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		$12.30	$7.80	$9.30	-0.867	60.7%	2	—
Call · $65 Daily-bar session Unknown Quote as of 2026-09-04 19:59:55.057 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $65 In the money Daily-bar session Mar 19, 2026 Quote as of 2026-09-04 19:55:09.285 UTC Last $12.30 Breakeven $52.70 Implied vol 60.7% Delta -0.867 ≈87% ITM Gamma 0.033 Theta -0.048 Vega 0.023 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 25, 2026–Sep 1, 2026; 23 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.