CTKB · Cytek Biosciences, Inc.

Track CTKB — free Ask ALVIS about CTKB

$4.45 -0.11 (-2.41%) At close · Jul 24

Market Cap

$575.98M

129.14M

Options Chain

15-min delayed Underlying $4.45 · today Options Calculator

Positioning

Aug 21, 2026 · 25 days to expiry · 6 contracts

Put / call OI

0.00

Call-heavy positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$7.50

$3.05 above spot

ATM implied vol

87.1%

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 25d Sep 18 53d Oct 16 81d Jan 15 172d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	389.4%	0.86	—		—	—	—	—	0
Call · $2.5 In the money Last — Breakeven — Implied vol 389.4% Delta 0.86 ≈86% ITM Gamma 0.048 Theta -0.02 Vega 0.003 Open interest 0 Model this call Put · $2.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
Underlying $4.45
0	—	132%	0.442	—		—	-0.835	42.3%	—	0
Call · $5 Last — Breakeven — Implied vol 132% Delta 0.442 ≈44% ITM Gamma 0.257 Theta -0.012 Vega 0.005 Open interest 0 Model this call Put · $5 In the money Last — Breakeven — Implied vol 42.3% Delta -0.835 ≈84% ITM Gamma 0.529 Theta -0.002 Vega 0.003 Open interest 0 Model this put
1	1	240.8%	0.311	$0.10		—	—	—	—	0
Call · $7.5 Last $0.10 Breakeven $7.60 Implied vol 240.8% Delta 0.311 ≈31% ITM Gamma 0.125 Theta -0.02 Vega 0.004 Open interest 1 Model this call Put · $7.5 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 1831915 CUSIP 23285D109 13F (30d) 20 filings 20 filers Visit website Investor relations