GBDC · Option chain

GBDC Option Chain

Every listed GBDC strike within 25% of spot, across the next 4 expirations — calls and puts side by side with last price, volume and open interest, plus the closing bid and ask.

Open interest and pricing as of the close on 2026-09-03. Recomputed every morning before the open.

Spot

$12.97

Call open interest

1,507

Put open interest

3,309

Put/call (volume)

0.00

76 contracts changed hands across these expirations — 76 calls against 0 puts. Calls outtraded puts Infinity to one.

Sep 18, 202613 days

call OI 58 · put OI 393

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	2.40 / 4.00	—	—	10	—	0.00 / 1.15	—	10
0.50	0.05 / 0.80	1	35	12.5	—	0.10 / 0.20	—	382
—	0.00 / 0.10	—	23	15	—	1.95 / 4.50	—	1
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 51 · put OI 26

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	0.20 / 0.75	—	51	12.5	—	0.00 / 1.15	—	26
A dash means the contract did not trade — not a price of zero.

Nov 20, 202676 days

call OI 1,040 · put OI 1,750

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	2.40 / 3.60	—	—	10	—	0.00 / 0.35	—	76
—	0.40 / 1.10	—	238	12.5	—	0.15 / 0.80	—	1,654
—	0.00 / 0.10	—	802	15	—	0.75 / 4.50	—	20
A dash means the contract did not trade — not a price of zero.

Feb 19, 2027167 days

call OI 358 · put OI 1,140

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	2.40 / 4.00	—	4	10	—	0.00 / 0.50	—	33
0.76	0.40 / 1.00	75	294	12.5	—	0.35 / 1.00	—	1,095
—	0.00 / 0.15	—	60	15	—	0.45 / 4.70	—	12
A dash means the contract did not trade — not a price of zero.

How to read this chain

Calls sit on the left, puts on the right, and every row is one strike. The highlighted row is the strike closest to spot. Open interest is the number of contracts still outstanding at that strike — positions that exist right now. Volume is how many traded on the session shown. Open interest builds slowly and marks where positioning has accumulated; volume spikes and marks where attention went today.

Strikes with no open interest and no trades on either side are omitted, and the ladder is trimmed to within 25% of spot — the far wings are almost entirely empty and say nothing about positioning.

More on GBDC

GBDC options score GBDC gamma walls GBDC max pain GBDC IV rank GBDC put/call ratio GBDC options flow

Weekly options-market digest

Sundays. What moved this week, what catalysts and earnings drive next week, and which 5-pillar setups stand out.

Free. One email per week. Unsubscribe with one click.

Educational, not investment advice. Options involve risk. Open interest is reported with a one-session lag by OCC, so these levels describe positioning as of the last settled session, not live intraday flow.