MGY · Magnolia Oil & Gas Corp · Options Chain

Track MGY — free

$25.18 -0.50 (-1.95%) At close · Sep 18

S&P 600 member Russell 2000 member Rebalance outlook locked

Market Cap

$5.97B

236.97M

Options Chain

Underlying $25.18 · at close Sep 18, 2026 Options Calculator

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Positioning

Oct 16, 2026 · 26 days to expiry · 16 contracts · mixed daily-bar sessions · Sep 14, 2026–Sep 18, 2026; 7 unknown

Put / call OI

0.07

Call-heavy positioning

Open interest

1,827

as of Sep 17, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$25.00

$0.18 below spot

ATM implied vol

36.4%

market's expected move

Open interest by strike

Calls Puts

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Oct 16 26d Nov 20 61d Dec 18 89d Mar 19 180d Dec 17 453d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$9.60	$12.30	—		—	$0.00	$0.75	—	—	—	—
Call · $15 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:57.025 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 2026-09-18 19:59:53.737 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$7.10	$9.00	—		—	$0.00	$0.75	—	—	—	—
Call · $17.5 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:56.492 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $17.5 Daily-bar session Unknown Quote as of 2026-09-18 19:59:56.262 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	6	78.6%	0.888	$5.00	$6.10	$4.90		—	$0.00	$0.75	—	—	—	—
Call · $20 In the money Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:54.966 UTC Last $4.90 Breakeven $24.90 Implied vol 78.6% Delta 0.888 ≈89% ITM Gamma 0.036 Theta -0.021 Vega 0.013 Open interest 2 OI effective date Sep 17, 2026 Model this call Put · $20 Daily-bar session Unknown Quote as of 2026-09-18 19:59:54.966 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
10	1	61.7%	0.783	$2.70	$3.90	$3.50		$0.15	$0.00	$0.40	—	—	9	9
Call · $22.5 In the money Daily-bar session Sep 17, 2026 Quote as of 2026-09-18 19:59:59.810 UTC Last $3.50 Breakeven $26.00 Implied vol 61.7% Delta 0.783 ≈78% ITM Gamma 0.071 Theta -0.025 Vega 0.02 Open interest 10 OI effective date Sep 17, 2026 Model this call Put · $22.5 Daily-bar session Sep 17, 2026 Quote as of 2026-09-18 19:59:51.727 UTC Last $0.15 Breakeven $22.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 9 OI effective date Sep 17, 2026 Model this put
560	184	36.4%	0.56	$0.95	$1.25	$1.20		$0.85	$0.80	$0.90	-0.44	36.4%	26	81
Call · $25 In the money Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:59.308 UTC Last $1.20 Breakeven $26.20 Implied vol 36.4% Delta 0.56 ≈56% ITM Gamma 0.161 Theta -0.02 Vega 0.027 Open interest 560 OI effective date Sep 17, 2026 Model this call Put · $25 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:55.124 UTC Last $0.85 Breakeven $24.15 Implied vol 36.4% Delta -0.44 ≈44% ITM Gamma 0.161 Theta -0.017 Vega 0.027 Open interest 81 OI effective date Sep 17, 2026 Model this put
Underlying $25.18
1.1k	263	41.1%	0.065	$0.05	$0.10	$0.09		$3.80	$4.40	$5.00	—	—	21	23
Call · $30 Daily-bar session Sep 18, 2026 Quote as of 2026-09-18 19:59:59.810 UTC Last $0.09 Breakeven $30.09 Implied vol 41.1% Delta 0.065 ≈6% ITM Gamma 0.046 Theta -0.007 Vega 0.009 Open interest 1.1k OI effective date Sep 17, 2026 Model this call Put · $30 In the money Daily-bar session Sep 16, 2026 Quote as of 2026-09-18 19:59:56.467 UTC Last $3.80 Breakeven $26.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 23 OI effective date Sep 17, 2026 Model this put
11	3	—	—	$0.00	$0.75	$0.24		$7.25	$7.80	$11.10	—	—	2	—
Call · $35 Daily-bar session Sep 16, 2026 Quote as of 2026-09-18 19:59:54.966 UTC Last $0.24 Breakeven $35.24 Implied vol — Delta — Gamma — Theta — Vega — Open interest 11 OI effective date Sep 17, 2026 Model this call Put · $35 In the money Daily-bar session Sep 14, 2026 Quote as of 2026-09-18 19:59:54.966 UTC Last $7.25 Breakeven $27.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.75	—		—	$13.50	$16.60	—	—	—	—
Call · $40 Daily-bar session Unknown Quote as of 2026-09-18 19:59:54.933 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 2026-09-18 19:59:54.966 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 · Sep 14, 2026–Sep 18, 2026; 7 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.

Key facts CIK 1698990 CUSIP 559663109 13F (30d) 12 filings 10 filers Visit website Investor relations