OGS · ONE Gas, Inc. · Options Chain

Track OGS — free

$79.12 -1.63 (-2.02%) At close · Sep 9

S&P 400 member Russell 2000 member Rebalance outlook locked

Market Cap

$4.97B

62.86M

Options Chain

Underlying $79.12 · at close Sep 9, 2026 Options Calculator

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Positioning

Sep 18, 2026 · 8 days to expiry · 34 contracts · mixed daily-bar sessions · Jul 17, 2026–Sep 9, 2026; 30 unknown

Put / call OI

0.07

Call-heavy positioning

Open interest

as of Sep 8, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$80.00

$0.88 above spot

ATM implied vol

27.6%

market's expected move

Open interest by strike

Calls Puts

100

105

110

115

120

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 8d Oct 16 36d Jan 15 127d Apr 16 218d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$37.50	$40.40	—		—	$0.00	$0.65	—	—	—	—
Call · $40 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:50.324 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $40 Daily-bar session Unknown Quote as of 2026-09-09 19:59:06.537 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$32.50	$35.40	—		—	$0.00	$0.65	—	—	—	—
Call · $45 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:55.633 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 2026-09-09 19:59:01.612 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$27.50	$30.50	—		—	$0.00	$0.65	—	—	—	—
Call · $50 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:27.472 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $50 Daily-bar session Unknown Quote as of 2026-09-09 19:59:19.522 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$22.10	$25.30	—		—	$0.00	$0.65	—	—	—	—
Call · $55 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:52.370 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $55 Daily-bar session Unknown Quote as of 2026-09-09 19:59:19.514 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$17.50	$20.50	—		—	$0.00	$0.70	—	—	—	—
Call · $60 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:51.538 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $60 Daily-bar session Unknown Quote as of 2026-09-09 19:58:57.686 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$12.60	$15.40	—		—	$0.00	$0.75	—	—	—	—
Call · $65 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:33.559 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $65 Daily-bar session Unknown Quote as of 2026-09-09 19:59:19.196 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$7.80	$10.50	—		—	$0.00	$0.75	—	—	—	—
Call · $70 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:02.819 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $70 Daily-bar session Unknown Quote as of 2026-09-09 19:58:51.525 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$3.30	$4.90	—		$0.41	$0.05	$0.80	-0.168	39.4%	1	2
Call · $75 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:59.457 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $75 Daily-bar session Aug 31, 2026 Quote as of 2026-09-09 19:59:46.973 UTC Last $0.41 Breakeven $74.59 Implied vol 39.4% Delta -0.168 ≈17% ITM Gamma 0.055 Theta -0.071 Vega 0.03 Open interest 2 OI effective date Sep 8, 2026 Model this put
Underlying $79.12
13	1	22%	0.383	$0.40	$0.95	$0.55		—	$1.35	$2.65	-0.573	33.2%	—	—
Call · $80 Daily-bar session Sep 9, 2026 Quote as of 2026-09-09 19:59:57.954 UTC Last $0.55 Breakeven $80.55 Implied vol 22% Delta 0.383 ≈38% ITM Gamma 0.148 Theta -0.064 Vega 0.045 Open interest 13 OI effective date Sep 8, 2026 Model this call Put · $80 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:48.444 UTC Last — Breakeven — Implied vol 33.2% Delta -0.573 ≈57% ITM Gamma 0.101 Theta -0.091 Vega 0.046 Open interest — OI effective date — Model this put
16	2	—	—	$0.00	$0.75	$0.24		—	$5.00	$7.40	-0.851	44.5%	—	—
Call · $85 Daily-bar session Aug 24, 2026 Quote as of 2026-09-09 19:58:51.524 UTC Last $0.24 Breakeven $85.24 Implied vol — Delta — Gamma — Theta — Vega — Open interest 16 OI effective date Sep 8, 2026 Model this call Put · $85 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:50.355 UTC Last — Breakeven — Implied vol 44.5% Delta -0.851 ≈85% ITM Gamma 0.044 Theta -0.068 Vega 0.027 Open interest — OI effective date — Model this put
1	1	—	—	$0.00	$0.50	$0.49		—	$9.70	$12.50	-0.91	62.3%	—	—
Call · $90 Daily-bar session Jul 17, 2026 Quote as of 2026-09-09 13:54:28.653 UTC Last $0.49 Breakeven $90.49 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 8, 2026 Model this call Put · $90 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:59:38.224 UTC Last — Breakeven — Implied vol 62.3% Delta -0.91 ≈91% ITM Gamma 0.022 Theta -0.066 Vega 0.019 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.70	—		—	$14.50	$17.60	-0.935	78.2%	—	—
Call · $95 Daily-bar session Unknown Quote as of 2026-09-09 19:59:01.611 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $95 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:55.590 UTC Last — Breakeven — Implied vol 78.2% Delta -0.935 ≈94% ITM Gamma 0.014 Theta -0.063 Vega 0.015 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.65	—		—	$19.50	$23.10	-0.911	110.5%	—	—
Call · $100 Daily-bar session Unknown Quote as of 2026-09-09 19:59:44.372 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $100 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:55.590 UTC Last — Breakeven — Implied vol 110.5% Delta -0.911 ≈91% ITM Gamma 0.013 Theta -0.121 Vega 0.019 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.65	—		—	$24.50	$28.10	—	—	—	—
Call · $105 Daily-bar session Unknown Quote as of 2026-09-09 19:59:18.009 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $105 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:55.590 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.65	—		—	$29.70	$33.10	—	—	—	—
Call · $110 Daily-bar session Unknown Quote as of 2026-09-09 19:59:18.009 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $110 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:51.542 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.65	—		—	$34.70	$37.60	—	—	—	—
Call · $115 Daily-bar session Unknown Quote as of 2026-09-09 19:59:18.008 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $115 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:50.324 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.15	—		—	$39.60	$43.20	—	—	—	—
Call · $120 Daily-bar session Unknown Quote as of 2026-09-09 19:59:17.716 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $120 In the money Daily-bar session Unknown Quote as of 2026-09-09 19:58:50.607 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 17, 2026–Sep 9, 2026; 30 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 1587732 CUSIP 68235P108 13F (30d) 228 filings 227 filers Visit website Investor relations