Golub Capital BDC (GBDC) Options Chain
NASDAQ: GBDCFinanceFinance: Consumer ServicesUSD
Market open · Delayed 15 min · as of Oct 9, 1:12 PM ET
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $12.18
- Put/call ratio (OI)
- 0.30
- Put/call ratio (volume)
- 0.01
- Expected move
- ±$0.9274
- Open interest (C / P)
- 233 / 69
GBDC options summary
The GBDC options chain for the October 16, 2026 expiration lists 4 call and 4 put contracts, with 7 days until expiration. Open interest stands at 233 calls and 69 puts, a put/call ratio of 0.30, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $12.50 strike is 55.0%, which implies the market expects a move of about ±$0.9274 (7.6%) in Golub Capital BDC stock by expiration.
The most open interest sits at the $12.50 call (228 contracts) and the $12.50 put (59 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
GBDC options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 10.40 | 9.00 | 10.50 | 2.50 | 0.00 | 0.05 | 0.05 | |||||
| 8.30 | 6.50 | 8.00 | 5.00 | 0.00 | 0.05 | 0.08 | |||||
| — | — | — | 7.50 | 0.00 | 0.05 | 0.12 | |||||
| 2.00 | 1.90 | 2.60 | 10.00 | — | — | — | |||||
| 0.30 | 0.00 | 0.10 | 12.50 | 0.10 | 0.75 | 0.50 | |||||
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 GBDC put/call ratio?
For the October 16, 2026 expiration, the GBDC put/call ratio based on open interest is 0.30 (69 puts vs 233 calls), and 0.01 based on today's volume. A ratio above 1 means more puts than calls.
What is GBDC's implied volatility?
At-the-money implied volatility for GBDC options expiring October 16, 2026 is about 55.0%, an annualized estimate of how much the market expects Golub Capital BDC stock to move.
How many GBDC option expiration dates are there?
GBDC has 4 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.