FISI · Financial Institutions Inc

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$41.29 -0.87 (-2.06%) At close · Jul 29

Market Cap

$812.06M

19.69M

Options Chain

15-min delayed Underlying $41.29 · today Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 18 contracts

Put / call OI

7.00

Put-heavy positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$40.00

$1.29 below spot

ATM implied vol

47.9%

market's expected move

Open interest by strike

Calls Puts

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Dec 18 141d Mar 19 232d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	206.5%	0.952	—		—	—	—	—	0
Call · $20 In the money Last — Breakeven — Implied vol 206.5% Delta 0.952 ≈95% ITM Gamma 0.005 Theta -0.045 Vega 0.012 Open interest 0 Model this call Put · $20 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	176.9%	0.945	—		—	—	—	—	0
Call · $22.5 In the money Last — Breakeven — Implied vol 176.9% Delta 0.945 ≈94% ITM Gamma 0.006 Theta -0.044 Vega 0.013 Open interest 0 Model this call Put · $22.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	150.5%	0.936	—		—	—	—	—	0
Call · $25 In the money Last — Breakeven — Implied vol 150.5% Delta 0.936 ≈94% ITM Gamma 0.008 Theta -0.042 Vega 0.014 Open interest 0 Model this call Put · $25 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	108.5%	0.905	—		$0.05	-0.08	100%	5	5
Call · $30 In the money Last — Breakeven — Implied vol 108.5% Delta 0.905 ≈91% ITM Gamma 0.015 Theta -0.041 Vega 0.015 Open interest 0 Model this call Put · $30 Last $0.05 Breakeven $29.95 Implied vol 100% Delta -0.08 ≈8% ITM Gamma 0.014 Theta -0.034 Vega 0.015 Open interest 5 Model this put
0	—	68.8%	0.851	—		$0.45	-0.132	63.9%	1	1
Call · $35 In the money Last — Breakeven — Implied vol 68.8% Delta 0.851 ≈85% ITM Gamma 0.033 Theta -0.036 Vega 0.025 Open interest 0 Model this call Put · $35 Last $0.45 Breakeven $34.55 Implied vol 63.9% Delta -0.132 ≈13% ITM Gamma 0.033 Theta -0.031 Vega 0.025 Open interest 1 Model this put
1	1	52.5%	0.618	$1.40		$2.50	-0.366	43.4%	1	1
Call · $40 In the money Last $1.40 Breakeven $41.40 Implied vol 52.5% Delta 0.618 ≈62% ITM Gamma 0.071 Theta -0.046 Vega 0.04 Open interest 1 Model this call Put · $40 Last $2.50 Breakeven $37.50 Implied vol 43.4% Delta -0.366 ≈37% ITM Gamma 0.085 Theta -0.037 Vega 0.04 Open interest 1 Model this put
Underlying $41.29
0	—	40.4%	0.209	—		—	—	—	—	0
Call · $45 Last — Breakeven — Implied vol 40.4% Delta 0.209 ≈21% ITM Gamma 0.07 Theta -0.027 Vega 0.029 Open interest 0 Model this call Put · $45 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	67.4%	0.143	—		—	—	—	—	0
Call · $50 Last — Breakeven — Implied vol 67.4% Delta 0.143 ≈14% ITM Gamma 0.033 Theta -0.035 Vega 0.02 Open interest 0 Model this call Put · $50 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $55 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $55 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 862831 CUSIP 317585404 13F (30d) 25 filings 25 filers Visit website