KORU · Option chain

KORU Option Chain

Every listed KORU strike within 25% of spot, across the next 6 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

$20.69

Call open interest

40,124

Put open interest

29,038

Put/call (volume)

2.11

9,214 contracts changed hands across these expirations — 2,958 calls against 6,256 puts. Puts outtraded calls 2.11 to one.

Sep 11, 20266 days

call OI 2,283 · put OI 1,974

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	4.40 / 5.30	—	21	16	0.15	0.10 / 0.20	97	618
—	4.00 / 4.80	—	3	16.5	0.15	0.10 / 0.20	99	94
3.03	3.60 / 4.40	26	399	17	0.21	0.15 / 0.25	162	321
—	3.10 / 3.90	—	1	17.5	0.28	0.10 / 0.35	135	57
2.98	2.80 / 3.20	8	40	18	0.40	0.35 / 0.60	715	282
—	2.40 / 3.10	—	3	18.5	0.50	0.45 / 0.55	116	48
2.10	2.10 / 2.45	18	193	19	0.70	0.60 / 0.70	1,481	115
—	1.65 / 2.35	—	55	19.5	0.82	0.75 / 0.90	57	79
1.46	1.50 / 1.80	39	138	20	1.10	0.95 / 1.30	1,026	116
1.33	1.10 / 1.60	88	34	20.5	1.25	1.10 / 1.55	73	10
1.20	0.90 / 1.25	317	130	21	1.80	1.40 / 1.85	10	68
1.00	0.65 / 1.25	79	14	21.5	2.05	1.65 / 2.15	10	21
0.80	0.55 / 0.95	281	236	22	2.25	1.75 / 2.40	9	33
0.60	0.35 / 0.75	37	53	22.5	2.50	2.10 / 2.80	1	1
0.50	0.25 / 0.70	100	433	23	—	2.55 / 3.20	—	21
0.39	0.15 / 0.45	3	13	23.5	—	2.95 / 3.70	—	—
0.30	0.15 / 0.50	441	183	24	—	3.20 / 4.00	—	86
0.22	0.20 / 0.30	97	7	24.5	—	3.60 / 4.50	—	—
0.18	0.15 / 0.25	33	321	25	4.60	4.30 / 5.00	1,001	4
0.15	0.00 / 0.25	3	6	25.5	—	4.50 / 5.40	—	—
A dash means the contract did not trade — not a price of zero.

Sep 18, 202613 days

call OI 32,196 · put OI 19,684

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	4.90 / 5.70	—	34	15.75	0.36	0.10 / 0.45	200	2,040
4.80	4.60 / 5.40	3	2,674	16	0.42	0.35 / 0.50	46	1,527
4.07	4.50 / 5.30	2	105	16.25	0.65	0.20 / 0.80	7	52
—	4.20 / 5.10	—	301	16.5	0.63	0.35 / 0.65	10	55
—	4.00 / 4.80	—	5	16.75	0.75	0.30 / 0.75	4	46
3.40	3.90 / 4.70	32	112	17	0.60	0.30 / 0.90	16	414
3.27	3.80 / 4.60	32	108	17.25	0.85	0.40 / 1.00	2	162
3.72	3.60 / 4.30	3	471	17.5	0.75	0.45 / 1.00	30	1,231
3.62	3.40 / 4.00	3	44	17.75	0.94	0.50 / 1.05	17	45
3.55	3.10 / 3.80	12	421	18	0.87	0.75 / 0.95	76	1,473
3.30	3.00 / 3.60	4	173	18.25	1.10	0.75 / 1.20	29	47
—	2.90 / 3.60	—	240	18.5	1.15	0.80 / 1.30	19	629
2.23	2.75 / 3.30	1	83	18.75	1.10	1.00 / 1.40	16	252
2.70	2.60 / 3.10	3	223	19	1.25	1.10 / 1.40	35	503
2.65	2.35 / 2.95	86	83	19.25	1.68	1.15 / 1.50	4	83
2.55	2.30 / 2.90	86	108	19.5	1.59	1.10 / 1.60	6	230
—	2.15 / 2.65	—	65	19.75	—	1.35 / 1.85	—	308
2.29	2.10 / 2.45	47	22,040	20	1.65	1.55 / 1.85	109	3,976
2.18	2.00 / 2.50	57	56	20.25	1.68	1.55 / 2.00	35	421
2.01	1.85 / 2.35	40	115	20.5	—	1.70 / 2.10	—	155
1.87	1.75 / 2.15	22	300	20.75	—	1.80 / 2.30	—	260
1.75	1.50 / 2.15	14	455	21	2.20	1.85 / 2.35	5	830
1.65	1.50 / 1.95	43	296	21.25	—	1.95 / 2.55	—	62
1.62	1.30 / 1.90	15	407	21.5	2.50	2.25 / 2.75	4	65
1.02	1.15 / 1.70	23	28	21.75	—	2.40 / 2.90	—	107
1.35	1.30 / 1.50	108	192	22	—	2.50 / 3.20	—	1,011
1.10	1.10 / 1.55	54	19	22.25	—	2.65 / 3.20	—	40
1.20	1.15 / 1.60	35	255	22.5	—	2.70 / 3.50	—	386
—	0.85 / 1.30	—	20	22.75	—	3.00 / 3.60	—	102
1.05	0.80 / 1.40	22	91	23	3.58	3.10 / 3.80	10	78
0.73	0.70 / 1.15	1	103	23.25	—	3.20 / 3.90	—	44
0.80	0.70 / 1.10	2	185	23.5	—	3.40 / 4.00	—	1,455
—	0.65 / 1.15	—	68	23.75	—	3.60 / 4.40	—	201
0.80	0.55 / 0.85	93	219	24	—	3.90 / 4.60	—	360
—	0.45 / 1.05	—	93	24.25	—	4.00 / 4.80	—	—
—	0.40 / 0.85	—	72	24.5	4.55	4.20 / 5.00	11	10
0.50	0.40 / 0.90	2	23	24.75	5.03	4.50 / 5.20	20	64
0.55	0.50 / 0.75	140	1,598	25	5.55	4.70 / 5.30	3	890
0.50	0.45 / 0.80	7	311	25.5	—	5.00 / 5.80	—	70
A dash means the contract did not trade — not a price of zero.

Sep 25, 202620 days

call OI 2,467 · put OI 1,081

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	4.90 / 5.50	—	1	16	0.70	0.50 / 0.75	5	38
—	4.50 / 5.10	—	23	16.5	—	0.65 / 0.90	—	12
4.40	4.10 / 4.70	20	33	17	0.95	0.80 / 1.05	158	93
4.00	3.80 / 4.40	1	8	17.5	1.40	0.95 / 1.40	1	10
3.00	3.50 / 4.00	5	47	18	1.35	1.10 / 1.45	4	245
3.20	3.10 / 3.70	5	12	18.5	—	1.10 / 1.75	—	27
—	2.85 / 3.40	—	119	19	2.02	1.45 / 1.90	10	70
—	2.60 / 3.10	—	6	19.5	—	1.65 / 2.15	—	12
2.04	2.35 / 2.85	1	262	20	—	1.80 / 2.25	—	40
—	2.10 / 2.65	—	53	20.5	—	2.00 / 2.65	—	1
—	1.85 / 2.45	—	31	21	—	2.30 / 2.90	—	505
—	1.65 / 2.15	—	12	21.5	—	2.70 / 3.20	—	1
—	1.45 / 1.90	—	327	22	3.75	3.00 / 3.60	10	12
—	1.30 / 1.75	—	21	22.5	—	3.30 / 3.90	—	4
1.20	1.15 / 1.55	13	36	23	4.30	3.60 / 4.30	3	5
—	1.00 / 1.45	—	5	23.5	—	4.00 / 4.60	—	—
1.14	0.85 / 1.20	159	1,058	24	—	4.30 / 5.00	—	—
0.80	0.60 / 1.00	3	413	25	—	5.10 / 5.80	—	6
A dash means the contract did not trade — not a price of zero.

Oct 02, 202627 days

call OI 622 · put OI 2,192

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
5.20	5.10 / 5.70	1	—	16	1.15	0.60 / 1.25	20	841
—	4.60 / 5.40	—	—	16.5	—	0.75 / 1.35	—	5
—	4.40 / 5.10	—	4	17	1.35	1.05 / 1.50	5	46
—	3.90 / 4.70	—	1	17.5	—	1.15 / 1.65	—	26
—	3.70 / 4.30	—	34	18	1.65	1.25 / 1.90	12	1,046
—	3.40 / 4.00	—	20	18.5	2.20	1.55 / 2.05	20	28
—	3.10 / 3.70	—	7	19	—	1.80 / 2.30	—	8
3.32	2.90 / 3.60	21	11	19.5	—	2.00 / 2.50	—	3
—	2.65 / 3.20	—	20	20	—	2.30 / 2.80	—	56
2.55	2.45 / 3.00	1	13	20.5	—	2.55 / 3.10	—	50
—	2.20 / 2.75	—	27	21	3.00	2.80 / 3.40	4	—
2.40	2.00 / 2.65	2	2	21.5	—	3.00 / 3.60	—	—
2.25	1.80 / 2.45	1	39	22	—	3.30 / 4.00	—	5
—	1.60 / 2.15	—	50	22.5	—	3.70 / 4.20	—	3
—	1.45 / 1.90	—	45	23	—	3.90 / 4.70	—	—
—	1.30 / 1.90	—	41	23.5	—	4.30 / 4.90	—	—
—	1.15 / 1.60	—	54	24	—	4.70 / 5.30	—	50
—	1.05 / 1.60	—	25	24.5	—	5.10 / 5.70	—	—
1.28	1.00 / 1.35	33	229	25	—	5.30 / 6.10	—	25
A dash means the contract did not trade — not a price of zero.

Oct 09, 202634 days

call OI 62 · put OI 109

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	5.10 / 5.90	—	—	16	—	0.95 / 1.35	—	56
—	4.80 / 5.60	—	—	16.5	—	1.00 / 1.65	—	3
—	4.50 / 5.30	—	—	17	1.55	1.25 / 1.80	10	1
—	4.30 / 4.90	—	—	17.5	—	1.30 / 1.95	—	20
—	3.40 / 4.10	—	—	19	2.40	2.10 / 2.60	3	10
—	3.20 / 3.80	—	—	19.5	2.95	2.25 / 2.85	1	—
—	2.95 / 3.60	—	14	20	—	2.50 / 3.10	—	1
—	2.75 / 3.30	—	1	20.5	—	2.80 / 3.40	—	1
—	2.15 / 2.75	—	—	22	—	3.60 / 4.40	—	6
—	1.95 / 2.50	—	7	22.5	—	4.00 / 4.70	—	6
2.00	1.75 / 2.35	1	—	23	—	4.30 / 4.90	—	—
—	1.50 / 1.95	—	14	24	—	5.00 / 5.60	—	5
—	1.35 / 1.90	—	8	24.5	—	5.40 / 6.00	—	—
—	1.25 / 1.90	—	18	25	—	5.70 / 6.40	—	—
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 2,494 · put OI 3,998

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	5.30 / 6.10	—	30	16	1.37	1.00 / 1.70	3	20
—	4.60 / 5.50	—	7	17	1.80	1.40 / 2.00	34	51
4.30	4.20 / 4.90	10	6	18	2.10	2.00 / 2.25	20	254
—	3.70 / 4.30	—	3	19	2.58	2.25 / 2.85	13	1,603
3.50	3.30 / 3.80	37	233	20	3.25	2.70 / 3.30	11	8
3.10	2.80 / 3.30	5	2,043	21	3.60	3.30 / 3.70	153	2,031
2.80	2.50 / 3.00	31	28	22	—	4.00 / 4.60	—	10
2.17	2.05 / 2.55	2	41	23	—	4.60 / 5.30	—	—
2.07	1.75 / 2.25	4	27	24	5.60	5.30 / 5.90	30	21
1.80	1.40 / 1.95	40	76	25	6.59	6.00 / 6.70	20	—
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 KORU

KORU options score KORU gamma walls KORU max pain KORU IV rank KORU put/call ratio KORU 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.