BankUnited (BKU) Options Chain
NYSE: BKUFinanceSavings InstitutionsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $42.28
- Put/call ratio (OI)
- 3.52
- Put/call ratio (volume)
- 1.75
- Expected move
- ±$11.15
- Open interest (C / P)
- 21 / 74
BKU options summary
The BKU options chain for the December 18, 2026 expiration lists 5 call and 6 put contracts, with 68 days until expiration. Open interest stands at 21 calls and 74 puts, a put/call ratio of 3.52, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $40.00 strike is 61.1%, which implies the market expects a move of about ±$11.15 (26.4%) in BankUnited stock by expiration.
The most open interest sits at the $45.00 call (8 contracts) and the $40.00 put (37 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
BKU options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 25.00 | 0.00 | 2.15 | 0.35 | |||||
| — | — | — | 30.00 | 0.00 | 2.35 | 0.70 | |||||
| — | — | — | 35.00 | 0.00 | 2.40 | 0.50 | |||||
| — | — | — | 40.00 | 0.30 | 3.30 | 1.60 | |||||
| 1.40 | 0.20 | 2.35 | 45.00 | 2.45 | 5.20 | 2.80 | |||||
| 1.75 | 0.00 | 2.40 | 50.00 | 4.00 | 6.80 | 4.20 | |||||
| 1.15 | 0.00 | 2.80 | 55.00 | — | — | — | |||||
| 0.51 | 0.00 | 1.30 | 60.00 | — | — | — | |||||
| 0.50 | 0.00 | 0.75 | 65.00 | — | — | — | |||||
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 BKU put/call ratio?
For the December 18, 2026 expiration, the BKU put/call ratio based on open interest is 3.52 (74 puts vs 21 calls), and 1.75 based on today's volume. A ratio above 1 means more puts than calls.
What is BKU's implied volatility?
At-the-money implied volatility for BKU options expiring December 18, 2026 is about 61.1%, an annualized estimate of how much the market expects BankUnited stock to move.
How many BKU option expiration dates are there?
BKU 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.