JFIN · Jiayin Group Inc.

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$2.19 +0.00 (+0.00%) At close · Jul 29

Market Cap

$114.60M

52.33M

Options Chain

15-min delayed Underlying $2.19 · at close Jul 29, 2026 Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 6 contracts

Put / call OI

0.05

Call-heavy positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$2.50

$0.31 above spot

ATM implied vol

249.1%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Oct 16 78d Jan 15 169d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
Underlying $2.19
1	1	199%	0.495	$0.15		$0.30	-0.42	299.2%	2	4
Call · $2.5 Last $0.15 Breakeven $2.65 Implied vol 199% Delta 0.495 ≈49% ITM Gamma 0.369 Theta -0.01 Vega 0.002 Open interest 1 Model this call Put · $2.5 In the money Last $0.30 Breakeven $2.20 Implied vol 299.2% Delta -0.42 ≈42% ITM Gamma 0.239 Theta -0.014 Vega 0.002 Open interest 4 Model this put
77	1	663.9%	0.632	$0.25		—	-0.618	409.9%	—	0
Call · $5 Last $0.25 Breakeven $5.25 Implied vol 663.9% Delta 0.632 ≈63% ITM Gamma 0.1 Theta -0.031 Vega 0.002 Open interest 77 Model this call Put · $5 In the money Last — Breakeven — Implied vol 409.9% Delta -0.618 ≈62% ITM Gamma 0.17 Theta -0.019 Vega 0.002 Open interest 0 Model this put
1	1	588.9%	0.46	$0.55		—	-0.505	627.6%	—	0
Call · $7.5 Last $0.55 Breakeven $8.05 Implied vol 588.9% Delta 0.46 ≈46% ITM Gamma 0.12 Theta -0.029 Vega 0.002 Open interest 1 Model this call Put · $7.5 In the money Last — Breakeven — Implied vol 627.6% Delta -0.505 ≈50% ITM Gamma 0.114 Theta -0.03 Vega 0.002 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 1743102 CUSIP 47737C104 13F (30d) 3 filings 3 filers Visit website Investor relations