GSBC · Great Southern Bancorp, Inc.

Track GSBC — free Ask ALVIS about GSBC

$81.42 -0.25 (-0.31%) At close · Aug 6

Market Cap

$886.92M

10.89M

Options Chain

15-min delayed Underlying $81.42 · at close Aug 6, 2026 Options Calculator

Positioning

Aug 21, 2026 · 14 days to expiry · 30 contracts

Put / call OI

6.50

Put-heavy positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$85.00

$3.58 above spot

ATM implied vol

29.4%

market's expected move

Open interest by strike

Calls Puts

100

105

110

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 14d Sep 18 42d Dec 18 133d Mar 19 224d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	142.7%	0.996	—		—	—	—	—	0
Call · $40 In the money Last — Breakeven — Implied vol 142.7% Delta 0.996 ≈100% ITM Gamma 0.001 Theta -0.009 Vega 0.002 Open interest 0 Model this call Put · $40 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	119.1%	0.995	—		—	—	—	—	0
Call · $45 In the money Last — Breakeven — Implied vol 119.1% Delta 0.995 ≈100% ITM Gamma 0.001 Theta -0.008 Vega 0.003 Open interest 0 Model this call Put · $45 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	97.7%	0.995	—		—	—	—	—	0
Call · $50 In the money Last — Breakeven — Implied vol 97.7% Delta 0.995 ≈99% ITM Gamma 0.001 Theta -0.007 Vega 0.003 Open interest 0 Model this call Put · $50 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	106%	0.976	—		—	-0.045	125.1%	—	0
Call · $55 In the money Last — Breakeven — Implied vol 106% Delta 0.976 ≈98% ITM Gamma 0.003 Theta -0.034 Vega 0.007 Open interest 0 Model this call Put · $55 Last — Breakeven — Implied vol 125.1% Delta -0.045 ≈4% ITM Gamma 0.005 Theta -0.066 Vega 0.014 Open interest 0 Model this put
0	—	84.4%	0.971	—		—	-0.054	102.9%	—	0
Call · $60 In the money Last — Breakeven — Implied vol 84.4% Delta 0.971 ≈97% ITM Gamma 0.005 Theta -0.031 Vega 0.014 Open interest 0 Model this call Put · $60 Last — Breakeven — Implied vol 102.9% Delta -0.054 ≈5% ITM Gamma 0.007 Theta -0.064 Vega 0.014 Open interest 0 Model this put
0	—	67.7%	0.957	—		—	-0.073	81.9%	—	0
Call · $65 In the money Last — Breakeven — Implied vol 67.7% Delta 0.957 ≈96% ITM Gamma 0.008 Theta -0.035 Vega 0.015 Open interest 0 Model this call Put · $65 Last — Breakeven — Implied vol 81.9% Delta -0.073 ≈7% ITM Gamma 0.01 Theta -0.063 Vega 0.026 Open interest 0 Model this put
0	1	53.7%	0.928	$10.41		—	-0.089	58.6%	—	0
Call · $70 In the money Last $10.41 Breakeven $80.41 Implied vol 53.7% Delta 0.928 ≈93% ITM Gamma 0.016 Theta -0.043 Vega 0.027 Open interest 0 Model this call Put · $70 Last — Breakeven — Implied vol 58.6% Delta -0.089 ≈9% ITM Gamma 0.017 Theta -0.052 Vega 0.027 Open interest 0 Model this put
0	1	37.3%	0.875	$4.62		$0.30	-0.275	79.2%	15	24
Call · $75 In the money Last $4.62 Breakeven $79.62 Implied vol 37.3% Delta 0.875 ≈88% ITM Gamma 0.034 Theta -0.045 Vega 0.041 Open interest 0 Model this call Put · $75 Last $0.30 Breakeven $74.70 Implied vol 79.2% Delta -0.275 ≈28% ITM Gamma 0.026 Theta -0.146 Vega 0.054 Open interest 24 Model this put
1	1	27.3%	0.64	$2.05		—	-0.375	31.5%	—	0
Call · $80 In the money Last $2.05 Breakeven $82.05 Implied vol 27.3% Delta 0.64 ≈64% ITM Gamma 0.085 Theta -0.059 Vega 0.064 Open interest 1 Model this call Put · $80 Last — Breakeven — Implied vol 31.5% Delta -0.375 ≈37% ITM Gamma 0.074 Theta -0.065 Vega 0.064 Open interest 0 Model this put
Underlying $81.42
3	1	35%	0.286	$1.55		—	-0.777	27%	—	0
Call · $85 Last $1.55 Breakeven $86.55 Implied vol 35% Delta 0.286 ≈29% ITM Gamma 0.06 Theta -0.067 Vega 0.058 Open interest 3 Model this call Put · $85 In the money Last — Breakeven — Implied vol 27% Delta -0.777 ≈78% ITM Gamma 0.069 Theta -0.043 Vega 0.045 Open interest 0 Model this put
0	—	42%	0.127	—		$12.00	-0.868	43.3%	2	2
Call · $90 Last — Breakeven — Implied vol 42% Delta 0.127 ≈13% ITM Gamma 0.03 Theta -0.049 Vega 0.031 Open interest 0 Model this call Put · $90 In the money Last $12.00 Breakeven $78.00 Implied vol 43.3% Delta -0.868 ≈87% ITM Gamma 0.031 Theta -0.049 Vega 0.03 Open interest 2 Model this put
0	—	56.9%	0.099	—		—	-0.896	58.3%	—	0
Call · $95 Last — Breakeven — Implied vol 56.9% Delta 0.099 ≈10% ITM Gamma 0.019 Theta -0.055 Vega 0.031 Open interest 0 Model this call Put · $95 In the money Last — Breakeven — Implied vol 58.3% Delta -0.896 ≈90% ITM Gamma 0.019 Theta -0.055 Vega 0.031 Open interest 0 Model this put
0	—	—	—	—		—	-0.912	72.5%	—	0
Call · $100 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $100 In the money Last — Breakeven — Implied vol 72.5% Delta -0.912 ≈91% ITM Gamma 0.014 Theta -0.061 Vega 0.032 Open interest 0 Model this put
0	—	—	—	—		—	-0.922	85.6%	—	0
Call · $105 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $105 In the money Last — Breakeven — Implied vol 85.6% Delta -0.922 ≈92% ITM Gamma 0.011 Theta -0.066 Vega 0.019 Open interest 0 Model this put
0	—	—	—	—		—	-0.929	96.4%	—	0
Call · $110 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $110 In the money Last — Breakeven — Implied vol 96.4% Delta -0.929 ≈93% ITM Gamma 0.009 Theta -0.069 Vega 0.019 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

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 854560 CUSIP 390905107 13F (30d) 24 filings 24 filers Visit website Investor relations