Golub Capital BDC (GBDC) Options Chain

NASDAQ: GBDCFinanceFinance: Consumer ServicesUSD

12.10-0.11 (-0.90%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Feb 19, 2027
Days to expiration: 131
Share price: $12.10
Put/call ratio (OI): 7.05
Put/call ratio (volume): 4.02
ATM implied volatility: 30.1%
Expected move: ±$2.18
Open interest (C / P): 336 / 2.37K

GBDC options summary

The GBDC options chain for the February 19, 2027 expiration lists 5 call and 6 put contracts, with 131 days until expiration. Open interest stands at 336 calls and 2,368 puts, a put/call ratio of 7.05, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $12.50 strike is 30.1%, which implies the market expects a move of about ±$2.18 (18.0%) in Golub Capital BDC stock by expiration.

The most open interest sits at the $12.50 call (272 contracts) and the $12.50 put (2.34K contracts).

Summary generated from market data by MetaCap's automated system. Methodology

GBDC options chain · February 19, 2027

GBDC calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
0	45	198.1%	10.70	9.00	10.70	2.50	0.00	2.15	0.05	343.0%	—	3
0	—	121.7%	7.30	6.50	8.30	5.00	—	—	—	—	—	—
—	—	—	—	—	—	7.50	0.00	2.15	0.09	123.8%	1	2
4	4	74.3%	3.17	1.75	4.60	10.00	0.10	0.20	0.15	33.3%	10	23
GBDC $12.10
272	3	24.9%	0.50	0.00	0.55	12.50	0.45	1.25	1.00	35.3%	200	2,340
60	1	30.7%	0.05	0.00	0.15	15.00	0.00	0.00	2.55	—	2	0
—	—	—	—	—	—	25.00	11.30	13.90	12.53	120.3%	—	0

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 February 19, 2027 expiration, the GBDC put/call ratio based on open interest is 7.05 (2,368 puts vs 336 calls), and 4.02 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 February 19, 2027 is about 30.1%, 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.