FSBC · Five Star Bancorp · Options Chain

Track FSBC — free

$44.47 -0.24 (-0.54%) At close · Sep 18

Russell 2000 member Rebalance outlook locked

Market Cap

$1.10B

24.54M

Options Chain

Underlying $44.47 · at close Sep 18, 2026 Options Calculator

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Positioning

Oct 16, 2026 · 27 days to expiry · 20 contracts · mixed daily-bar sessions · Aug 21, 2026–Sep 17, 2026; 18 unknown

Put / call OI

0.25

Call-heavy positioning

Open interest

as of Sep 17, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$45.00

$0.53 above spot

ATM implied vol

39.1%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Oct 16 27d Nov 20 62d Jan 15 118d Feb 19 153d May 21 244d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$17.50	$22.00	—		—	$0.00	$4.80	—	—	—	—
Call · $25 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:58.805 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $25 Daily-bar session Unknown Quote as of 2026-09-18 19:59:50.216 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$12.80	$17.00	—		—	$0.00	$4.80	—	—	—	—
Call · $30 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:56:12.508 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $30 Daily-bar session Unknown Quote as of 2026-09-18 19:59:50.216 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	58.9%	0.944	$7.50	$12.00	—		—	$0.00	$4.80	—	—	—	—
Call · $35 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:55:07.290 UTC Last — Breakeven — Implied vol 58.9% Delta 0.944 ≈94% ITM Gamma 0.016 Theta -0.018 Vega 0.014 Open interest — OI effective date — Model this call Put · $35 Daily-bar session Unknown Quote as of 2026-09-18 19:59:50.216 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	47%	0.82	$2.85	$7.50	—		—	$0.00	$4.80	—	—	—	—
Call · $40 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:56:12.507 UTC Last — Breakeven — Implied vol 47% Delta 0.82 ≈82% ITM Gamma 0.046 Theta -0.031 Vega 0.032 Open interest — OI effective date — Model this call Put · $40 Daily-bar session Unknown Quote as of 2026-09-18 19:59:50.216 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $44.47
—	—	55.2%	0.506	$0.05	$4.90	—		$1.90	$1.15	$1.50	-0.545	23%	1	1
Call · $45 Daily-bar session Unknown Quote as of 2026-09-18 19:59:50.216 UTC Last — Breakeven — Implied vol 55.2% Delta 0.506 ≈51% ITM Gamma 0.06 Theta -0.051 Vega 0.048 Open interest — OI effective date — Model this call Put · $45 In the money Daily-bar session Aug 21, 2026 Quote as of 2026-09-18 19:59:57.476 UTC Last $1.90 Breakeven $43.10 Implied vol 23% Delta -0.545 ≈54% ITM Gamma 0.143 Theta -0.018 Vega 0.048 Open interest 1 OI effective date Sep 17, 2026 Model this put
4	4	—	—	$0.00	$1.20	$0.68		—	$3.50	$7.50	-0.924	28.5%	—	—
Call · $50 Daily-bar session Sep 17, 2026 Quote as of 2026-09-18 19:57:52.556 UTC Last $0.68 Breakeven $50.68 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 17, 2026 Model this call Put · $50 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:56:08.433 UTC Last — Breakeven — Implied vol 28.5% Delta -0.924 ≈92% ITM Gamma 0.041 Theta -0.004 Vega 0.017 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$1.15	—		—	$8.50	$12.50	-0.944	46.6%	—	—
Call · $55 Daily-bar session Unknown Quote as of 2026-09-18 19:56:04.910 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $55 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:56:12.507 UTC Last — Breakeven — Implied vol 46.6% Delta -0.944 ≈94% ITM Gamma 0.02 Theta -0.006 Vega 0.014 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$4.80	—		—	$13.50	$17.50	-0.952	62.5%	—	—
Call · $60 Daily-bar session Unknown Quote as of 2026-09-18 19:55:01.805 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $60 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:45.894 UTC Last — Breakeven — Implied vol 62.5% Delta -0.952 ≈95% ITM Gamma 0.013 Theta -0.008 Vega 0.012 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$4.80	—		—	$18.50	$22.50	-0.956	76.7%	—	—
Call · $65 Daily-bar session Unknown Quote as of 2026-09-18 19:55:01.867 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $65 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:58.805 UTC Last — Breakeven — Implied vol 76.7% Delta -0.956 ≈96% ITM Gamma 0.01 Theta -0.009 Vega 0.011 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$4.90	—		—	$23.00	$27.50	—	—	—	—
Call · $70 Daily-bar session Unknown Quote as of 2026-09-18 19:47:06.389 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $70 In the money Daily-bar session Unknown Quote as of 2026-09-18 19:59:45.894 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 · Aug 21, 2026–Sep 17, 2026; 18 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 1275168 CUSIP 33830T103 13F (30d) 4 filings 4 filers Visit website Investor relations