KSTR · Option chain

KSTR Option Chain

Every listed KSTR strike within 25% of spot, across the next 5 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

$23.39

Call open interest

9,381

Put open interest

3,770

Put/call (volume)

1.96

252 contracts changed hands across these expirations — 85 calls against 167 puts. Puts outtraded calls 1.96 to one.

Sep 18, 202613 days

call OI 6,058 · put OI 1,544

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	4.90 / 5.70	—	12	18	—	0.00 / 0.55	—	5
—	3.90 / 4.90	—	5	19	—	0.00 / 0.55	—	22
—	3.10 / 3.90	—	9	20	—	0.00 / 0.50	—	66
—	2.15 / 2.80	—	12	21	—	0.00 / 0.75	—	11
—	1.35 / 2.10	—	27	22	0.39	0.30 / 0.50	10	173
—	0.90 / 1.30	—	110	23	0.64	0.45 / 0.75	45	188
0.64	0.50 / 0.65	29	2,722	24	—	1.00 / 1.40	—	548
0.34	0.15 / 0.45	34	1,973	25	2.01	1.70 / 2.20	105	486
—	0.05 / 0.30	—	772	26	—	2.55 / 3.40	—	35
—	0.05 / 0.20	—	255	27	—	3.30 / 4.20	—	5
—	0.00 / 0.25	—	157	28	—	4.30 / 5.10	—	2
—	0.00 / 0.60	—	4	29	—	5.30 / 6.10	—	3
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 809 · put OI 774

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	4.20 / 5.00	—	—	19	—	0.00 / 0.65	—	3
—	3.60 / 4.20	—	8	20	—	0.25 / 0.60	—	—
—	2.85 / 3.40	—	—	21	0.60	0.45 / 0.75	2	6
—	2.20 / 2.75	—	1	22	—	0.80 / 0.95	—	1
—	1.50 / 2.15	—	215	23	—	1.00 / 1.45	—	224
1.33	1.20 / 1.45	1	277	24	—	1.65 / 2.25	—	268
0.95	0.95 / 1.05	10	292	25	—	2.30 / 2.85	—	272
—	0.50 / 0.80	—	5	26	—	3.00 / 3.70	—	—
—	0.30 / 0.65	—	5	27	—	3.60 / 4.70	—	—
—	0.10 / 0.55	—	6	28	—	4.50 / 5.40	—	—
A dash means the contract did not trade — not a price of zero.

Dec 18, 2026104 days

call OI 1,110 · put OI 1,224

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	5.80 / 6.70	—	—	18	—	0.40 / 1.15	—	15
—	5.00 / 5.90	—	—	19	—	0.60 / 1.25	—	3
—	4.30 / 5.00	—	42	20	—	1.00 / 1.50	—	8
—	3.70 / 4.80	—	8	21	—	1.25 / 1.85	—	143
—	3.30 / 4.00	—	23	22	—	1.65 / 2.20	—	407
3.00	2.75 / 3.60	4	231	23	2.40	2.20 / 2.95	5	286
2.57	2.30 / 2.60	1	294	24	—	2.70 / 3.20	—	242
2.05	1.90 / 2.25	1	131	25	—	3.30 / 4.00	—	116
—	1.60 / 1.90	—	164	26	—	3.80 / 4.60	—	1
1.65	1.25 / 1.60	1	29	27	—	4.60 / 5.30	—	—
—	1.00 / 1.60	—	140	28	—	5.40 / 6.20	—	2
—	0.75 / 1.35	—	48	29	—	6.10 / 7.00	—	1
A dash means the contract did not trade — not a price of zero.

Jan 15, 2027132 days

call OI 649 · put OI 146

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	5.90 / 7.20	—	—	18	—	0.60 / 1.70	—	1
—	5.40 / 7.30	—	—	19	—	0.95 / 1.70	—	2
—	4.80 / 6.10	—	34	20	—	1.10 / 2.60	—	46
—	4.20 / 5.10	—	3	21	—	1.45 / 2.65	—	—
—	3.60 / 4.50	—	21	22	—	2.00 / 2.65	—	7
—	3.10 / 3.90	—	4	23	—	2.55 / 3.10	—	18
—	2.70 / 3.40	—	13	24	—	2.90 / 3.60	—	3
—	2.30 / 3.00	—	182	25	—	3.60 / 4.40	—	27
—	1.90 / 2.50	—	26	26	—	4.20 / 5.00	—	—
—	1.55 / 2.15	—	8	27	—	4.90 / 5.60	—	37
—	1.35 / 1.70	—	336	28	—	5.60 / 6.60	—	—
—	1.20 / 1.55	—	22	29	—	6.40 / 7.50	—	5
A dash means the contract did not trade — not a price of zero.

Mar 19, 2027195 days

call OI 755 · put OI 82

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	5.50 / 6.10	—	535	20	—	1.75 / 2.40	—	13
—	4.80 / 5.50	—	1	21	—	2.15 / 2.70	—	3
—	4.20 / 4.90	—	103	22	—	2.55 / 3.10	—	5
—	3.70 / 4.40	—	4	23	—	2.90 / 3.70	—	—
—	3.10 / 4.00	—	59	24	—	3.50 / 4.20	—	34
3.25	2.85 / 3.70	4	24	25	—	4.10 / 4.90	—	22
—	2.50 / 3.10	—	3	26	—	4.70 / 5.60	—	—
—	2.15 / 2.90	—	13	27	—	5.40 / 6.30	—	—
—	2.00 / 2.55	—	13	28	—	6.10 / 6.90	—	3
—	1.80 / 2.30	—	—	29	—	6.80 / 7.80	—	2
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 KSTR

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

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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.