CLGN · CollPlant Biotechnologies Ltd

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$0.31 -0.02 (-4.82%) At close · Jul 29

Market Cap

$6.20M

18.91M

Options Chain

15-min delayed Underlying $0.31 · at close Jul 29, 2026 Options Calculator

Positioning

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

Put / call OI

2.00

Put-heavy positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$5.00

$4.69 above spot

ATM implied vol

0.2%

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 $0.31
7	1	—	—	$0.34		$2.35	-1	0.2%	2	7
Call · $2.5 Last $0.34 Breakeven $2.84 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7 Model this call Put · $2.5 In the money Last $2.35 Breakeven $0.15 Implied vol 0.2% Delta -1 ≈100% ITM Gamma 0 Theta 0 Vega 0 Open interest 7 Model this put
1	1	—	—	$0.20		$4.85	—	—	4	6
Call · $5 Last $0.20 Breakeven $5.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $5 In the money Last $4.85 Breakeven $0.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this put
1	2	972.9%	0.457	$0.10		$7.35	—	—	4	5
Call · $7.5 Last $0.10 Breakeven $7.60 Implied vol 972.9% Delta 0.457 ≈46% ITM Gamma 0.476 Theta -0.007 Vega 0 Open interest 1 Model this call Put · $7.5 In the money Last $7.35 Breakeven $0.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 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 1631487 CUSIP M2R51X116 13F (30d) 2 filings 2 filers Visit website Investor relations