NB Bancorp (NBBK) Options Chain
NASDAQ: NBBKFinanceBanksUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $22.12
- Put/call ratio (OI)
- 9.38
- Put/call ratio (volume)
- 5.92
- Expected move
- ±$2.58
- Open interest (C / P)
- 71 / 666
NBBK options summary
The NBBK options chain for the November 20, 2026 expiration lists 5 call and 4 put contracts, with 40 days until expiration. Open interest stands at 71 calls and 666 puts, a put/call ratio of 9.38, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $22.50 strike is 35.3%, which implies the market expects a move of about ±$2.58 (11.7%) in NB Bancorp stock by expiration.
The most open interest sits at the $20.00 call (62 contracts) and the $22.50 put (446 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
NBBK options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 4.27 | 0.00 | 0.00 | 17.50 | 0.00 | 0.30 | 0.10 | |||||
| 2.31 | 2.15 | 2.95 | 20.00 | 0.10 | 0.30 | 0.15 | |||||
| 0.80 | 0.45 | 0.95 | 22.50 | 0.90 | 1.15 | 1.10 | |||||
| 0.26 | 0.00 | 0.35 | 25.00 | 0.80 | 3.90 | 2.30 | |||||
| 0.10 | 0.00 | 0.00 | 30.00 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the NBBK put/call ratio?
For the November 20, 2026 expiration, the NBBK put/call ratio based on open interest is 9.38 (666 puts vs 71 calls), and 5.92 based on today's volume. A ratio above 1 means more puts than calls.
What is NBBK's implied volatility?
At-the-money implied volatility for NBBK options expiring November 20, 2026 is about 35.3%, an annualized estimate of how much the market expects NB Bancorp stock to move.
How many NBBK option expiration dates are there?
NBBK has 5 listed expiration dates, from Oct 16, 2026 to May 21, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.