MBWM · Mercantile Bank Corp

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$58.49 +1.31 (+2.28%) At close · Jul 24

Market Cap

$1.01B

17.27M

Options Chain

15-min delayed Underlying $58.49 · today Options Calculator

Positioning

Aug 21, 2026 · 26 days to expiry · 22 contracts

Put / call OI

—

No open interest

Open interest

contracts outstanding

Volume

traded today

ATM implied vol

40.2%

market's expected move

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 26d Sep 18 54d Dec 18 145d Mar 19 236d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	181.4%	0.947	—		—	-0.036	157.5%	—	0
Call · $30 In the money Last — Breakeven — Implied vol 181.4% Delta 0.947 ≈95% ITM Gamma 0.004 Theta -0.057 Vega 0.019 Open interest 0 Model this call Put · $30 Last — Breakeven — Implied vol 157.5% Delta -0.036 ≈4% ITM Gamma 0.003 Theta -0.037 Vega 0.011 Open interest 0 Model this put
0	—	133.3%	0.948	—		—	-0.045	126.8%	—	0
Call · $35 In the money Last — Breakeven — Implied vol 133.3% Delta 0.948 ≈95% ITM Gamma 0.005 Theta -0.041 Vega 0.021 Open interest 0 Model this call Put · $35 Last — Breakeven — Implied vol 126.8% Delta -0.045 ≈4% ITM Gamma 0.005 Theta -0.036 Vega 0.012 Open interest 0 Model this put
0	—	103.1%	0.935	—		—	-0.057	98.9%	—	0
Call · $40 In the money Last — Breakeven — Implied vol 103.1% Delta 0.935 ≈93% ITM Gamma 0.008 Theta -0.038 Vega 0.023 Open interest 0 Model this call Put · $40 Last — Breakeven — Implied vol 98.9% Delta -0.057 ≈6% ITM Gamma 0.007 Theta -0.034 Vega 0.023 Open interest 0 Model this put
0	—	80.7%	0.906	—		—	-0.075	72.9%	—	0
Call · $45 In the money Last — Breakeven — Implied vol 80.7% Delta 0.906 ≈91% ITM Gamma 0.013 Theta -0.04 Vega 0.024 Open interest 0 Model this call Put · $45 Last — Breakeven — Implied vol 72.9% Delta -0.075 ≈7% ITM Gamma 0.012 Theta -0.031 Vega 0.024 Open interest 0 Model this put
0	—	59.5%	0.855	—		—	-0.141	58.8%	—	0
Call · $50 In the money Last — Breakeven — Implied vol 59.5% Delta 0.855 ≈85% ITM Gamma 0.024 Theta -0.04 Vega 0.038 Open interest 0 Model this call Put · $50 Last — Breakeven — Implied vol 58.8% Delta -0.141 ≈14% ITM Gamma 0.024 Theta -0.039 Vega 0.038 Open interest 0 Model this put
0	—	33.5%	0.768	—		—	-0.291	47.4%	—	0
Call · $55 In the money Last — Breakeven — Implied vol 33.5% Delta 0.768 ≈77% ITM Gamma 0.058 Theta -0.031 Vega 0.053 Open interest 0 Model this call Put · $55 Last — Breakeven — Implied vol 47.4% Delta -0.291 ≈29% ITM Gamma 0.046 Theta -0.049 Vega 0.053 Open interest 0 Model this put
Underlying $58.49
0	—	49.4%	0.451	—		—	-0.602	31%	—	0
Call · $60 Last — Breakeven — Implied vol 49.4% Delta 0.451 ≈45% ITM Gamma 0.051 Theta -0.059 Vega 0.063 Open interest 0 Model this call Put · $60 In the money Last — Breakeven — Implied vol 31% Delta -0.602 ≈60% ITM Gamma 0.08 Theta -0.036 Vega 0.063 Open interest 0 Model this put
0	—	44.4%	0.206	—		—	-0.9	29.7%	—	0
Call · $65 Last — Breakeven — Implied vol 44.4% Delta 0.206 ≈21% ITM Gamma 0.041 Theta -0.038 Vega 0.044 Open interest 0 Model this call Put · $65 In the money Last — Breakeven — Implied vol 29.7% Delta -0.9 ≈90% ITM Gamma 0.038 Theta -0.015 Vega 0.029 Open interest 0 Model this put
0	—	51.9%	0.112	—		—	—	—	—	0
Call · $70 Last — Breakeven — Implied vol 51.9% Delta 0.112 ≈11% ITM Gamma 0.023 Theta -0.029 Vega 0.03 Open interest 0 Model this call Put · $70 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $75 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $75 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	-1	0%	—	0
Call · $80 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $80 In the money Last — Breakeven — Implied vol 0% Delta -1 ≈100% ITM Gamma 0 Theta 0 Vega 0 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.

Key facts CIK 1042729 CUSIP 587376104 13F (30d) 35 filings 35 filers Visit website Investor relations