WABC · Westamerica Bancorporation

Track WABC — free

$58.10 -1.09 (-1.84%) At close · Aug 19

Market Cap

$1.37B

23.11M

Options Chain

Underlying $58.10 · at close Aug 19, 2026 Options Calculator

Positioning

Aug 21, 2026 · 1 days to expiry · 24 contracts · mixed snapshot sessions · Jul 17, 2026–Jul 21, 2026; 20 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

—

dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 1d Sep 18 29d Oct 16 57d Jan 15 148d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	—	—	—	0
Call · $30 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $30 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $35 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $35 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $40 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $40 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	-0.077	274.6%	—	0
Call · $45 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $45 Snapshot session Unknown Last — Breakeven — Implied vol 274.6% Delta -0.077 ≈8% ITM Gamma 0.013 Theta -0.45 Vega 0.006 Open interest 0 Model this put
0	—	115.7%	0.973	—		—	-0.134	209%	—	0
Call · $50 In the money Snapshot session Unknown Last — Breakeven — Implied vol 115.7% Delta 0.973 ≈97% ITM Gamma 0.013 Theta -0.082 Vega 0.002 Open interest 0 Model this call Put · $50 Snapshot session Unknown Last — Breakeven — Implied vol 209% Delta -0.134 ≈13% ITM Gamma 0.026 Theta -0.52 Vega 0.01 Open interest 0 Model this put
0	10	43.8%	0.966	$5.77		$2.32	-0.193	94%	10	20
Call · $55 In the money Snapshot session Jul 17, 2026 Last $5.77 Breakeven $60.77 Implied vol 43.8% Delta 0.966 ≈97% ITM Gamma 0.042 Theta -0.038 Vega 0.004 Open interest 0 Model this call Put · $55 Snapshot session Jul 17, 2026 Last $2.32 Breakeven $52.68 Implied vol 94% Delta -0.193 ≈19% ITM Gamma 0.072 Theta -0.296 Vega 0.01 Open interest 20 Model this put
Underlying $58.10
1	1	71.9%	0.269	$2.60		—	—	—	—	0
Call · $60 Snapshot session Jul 17, 2026 Last $2.60 Breakeven $62.60 Implied vol 71.9% Delta 0.269 ≈27% ITM Gamma 0.114 Theta -0.273 Vega 0.014 Open interest 1 Model this call Put · $60 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	146.7%	0.145	—		—	-1	51.1%	—	0
Call · $65 Snapshot session Unknown Last — Breakeven — Implied vol 146.7% Delta 0.145 ≈14% ITM Gamma 0.039 Theta -0.387 Vega 0.011 Open interest 0 Model this call Put · $65 In the money Snapshot session Unknown Last — Breakeven — Implied vol 51.1% Delta -1 ≈100% ITM Gamma 0.001 Theta 0 Vega 0 Open interest 0 Model this put
113	3	262.2%	0.177	$0.30		—	-1	83.4%	—	0
Call · $70 Snapshot session Jul 21, 2026 Last $0.30 Breakeven $70.30 Implied vol 262.2% Delta 0.177 ≈18% ITM Gamma 0.024 Theta -0.779 Vega 0.012 Open interest 113 Model this call Put · $70 In the money Snapshot session Unknown Last — Breakeven — Implied vol 83.4% Delta -1 ≈100% ITM Gamma 0 Theta 0 Vega 0 Open interest 0 Model this put
0	—	259.2%	0.092	—		—	-0.98	174.7%	—	0
Call · $75 Snapshot session Unknown Last — Breakeven — Implied vol 259.2% Delta 0.092 ≈9% ITM Gamma 0.016 Theta -0.489 Vega 0.008 Open interest 0 Model this call Put · $75 In the money Snapshot session Unknown Last — Breakeven — Implied vol 174.7% Delta -0.98 ≈98% ITM Gamma 0.007 Theta -0.095 Vega 0.002 Open interest 0 Model this put
0	—	—	—	—		—	-0.983	212.8%	—	0
Call · $80 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $80 In the money Snapshot session Unknown Last — Breakeven — Implied vol 212.8% Delta -0.983 ≈98% ITM Gamma 0.005 Theta -0.101 Vega 0.002 Open interest 0 Model this put
0	—	—	—	—		—	-0.985	248.5%	—	0
Call · $85 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $85 In the money Snapshot session Unknown Last — Breakeven — Implied vol 248.5% Delta -0.985 ≈98% ITM Gamma 0.004 Theta -0.107 Vega 0.002 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 17, 2026–Jul 21, 2026; 20 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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 311094 CUSIP 957090103 13F (30d) 191 filings 190 filers Visit website Investor relations