INSM · Option chain

INSM Option Chain

Every listed INSM 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

$126.68

Call open interest

37,978

Put open interest

9,282

Put/call (volume)

0.07

611 contracts changed hands across these expirations — 572 calls against 39 puts. Calls outtraded puts 14.67 to one.

Sep 18, 202613 days

call OI 7,288 · put OI 5,386

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	24.80 / 28.50	—	16	100	—	0.00 / 0.55	—	18
—	19.90 / 23.30	—	697	105	—	0.00 / 0.75	—	127
—	15.00 / 18.50	—	17	110	—	0.00 / 1.85	—	123
—	10.70 / 13.90	—	1,053	115	—	0.00 / 1.35	—	645
—	5.90 / 9.30	—	183	120	1.20	0.30 / 1.60	12	1,904
4.45	3.20 / 6.00	8	509	125	—	1.00 / 4.90	—	2,036
2.40	2.35 / 2.60	143	1,629	130	—	3.60 / 6.70	—	472
1.15	1.05 / 1.15	270	1,690	135	—	7.80 / 11.30	—	57
0.45	0.20 / 0.65	18	716	140	—	12.00 / 15.10	—	3
—	0.00 / 2.05	—	347	145	—	16.70 / 20.40	—	1
1.00	0.00 / 2.35	1	423	150	—	21.70 / 25.30	—	—
0.45	0.00 / 0.45	39	8	155	—	26.70 / 30.30	—	—
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 634 · put OI 253

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	20.70 / 24.20	—	—	105	0.50	0.00 / 0.80	1	3
—	16.10 / 19.50	—	2	110	—	0.00 / 1.55	—	4
—	11.90 / 15.30	—	—	115	2.05	0.30 / 2.70	5	42
—	8.40 / 11.80	—	49	120	3.60	1.55 / 4.30	3	109
6.72	6.00 / 8.90	3	71	125	5.70	3.40 / 7.50	9	94
—	3.40 / 6.60	—	144	130	—	6.00 / 9.30	—	—
3.60	1.25 / 3.90	4	123	135	—	9.60 / 13.20	—	—
2.03	0.45 / 3.70	1	234	140	—	14.00 / 16.50	—	1
—	0.00 / 3.10	—	11	145	—	17.70 / 20.50	—	—
1.56	0.15 / 3.10	1	—	150	—	22.10 / 25.80	—	—
0.45	0.00 / 1.25	4	—	155	—	27.00 / 30.50	—	—
A dash means the contract did not trade — not a price of zero.

Nov 20, 202676 days

call OI 10,564 · put OI 1,322

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	29.70 / 33.00	—	1	97.5	—	0.05 / 3.80	—	5
—	27.60 / 31.00	—	179	100	—	1.00 / 3.90	—	337
—	23.60 / 27.00	—	51	105	—	1.55 / 3.80	—	100
—	19.90 / 22.40	—	429	110	—	2.55 / 6.20	—	263
—	16.50 / 20.00	—	379	115	6.50	4.20 / 7.90	3	201
15.70	13.40 / 17.40	5	814	120	—	6.30 / 10.00	—	189
—	10.70 / 14.30	—	179	125	—	8.20 / 12.20	—	163
10.00	8.40 / 12.10	13	6,015	130	13.40	10.90 / 14.80	3	37
—	6.40 / 10.30	—	461	135	—	14.10 / 17.80	—	16
—	4.70 / 8.40	—	1,655	140	—	17.30 / 21.10	—	10
—	3.40 / 7.00	—	127	145	—	20.90 / 24.70	—	—
—	2.20 / 4.90	—	215	150	—	24.80 / 28.60	—	1
—	1.30 / 5.10	—	59	155	—	29.00 / 32.60	—	—
A dash means the contract did not trade — not a price of zero.

Jan 15, 2027132 days

call OI 18,591 · put OI 2,187

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	31.90 / 35.70	—	83	97.5	—	1.90 / 5.50	—	6
—	30.00 / 33.70	—	873	100	4.16	2.15 / 5.20	2	47
—	26.40 / 30.00	—	186	105	—	3.40 / 7.40	—	31
—	23.00 / 26.50	—	235	110	—	5.10 / 8.90	—	130
—	19.80 / 23.40	—	7,226	115	9.40	6.80 / 10.70	1	10
—	16.90 / 20.90	—	690	120	—	8.90 / 12.80	—	1,604
16.20	14.30 / 17.90	1	644	125	—	11.30 / 15.10	—	90
13.70	13.70 / 15.30	20	255	130	—	13.60 / 17.80	—	23
12.10	9.90 / 13.00	9	252	135	—	16.90 / 20.70	—	6
11.00	8.10 / 12.00	2	203	140	—	19.90 / 23.80	—	5
—	6.60 / 10.40	—	34	145	—	23.50 / 27.30	—	74
—	5.30 / 9.00	—	7,742	150	—	27.20 / 31.00	—	22
—	4.10 / 8.20	—	168	155	—	30.80 / 34.80	—	139
A dash means the contract did not trade — not a price of zero.

Feb 19, 2027167 days

call OI 84 · put OI 46

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	31.70 / 35.00	—	1	100	—	3.60 / 7.50	—	—
—	28.20 / 31.60	—	4	105	—	5.10 / 9.00	—	36
26.25	25.10 / 28.50	1	11	110	—	6.80 / 10.60	—	5
—	22.00 / 25.50	—	8	115	—	8.70 / 12.50	—	2
—	19.30 / 23.00	—	26	120	—	10.90 / 14.70	—	—
18.42	16.90 / 20.50	20	11	125	—	13.40 / 17.10	—	1
—	14.50 / 18.50	—	4	130	—	16.00 / 19.80	—	1
14.30	12.40 / 16.40	1	2	135	—	18.90 / 22.70	—	—
12.50	11.60 / 14.40	1	2	140	—	22.10 / 25.80	—	1
—	8.90 / 12.80	—	1	145	—	25.40 / 29.20	—	—
—	7.50 / 11.30	—	14	150	—	28.80 / 32.70	—	—
A dash means the contract did not trade — not a price of zero.

Mar 19, 2027195 days

call OI 817 · put OI 88

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	34.70 / 38.50	—	7	97.5	—	3.90 / 7.80	—	35
—	33.00 / 36.90	—	5	100	—	4.40 / 8.50	—	10
—	29.70 / 33.50	—	2	105	—	6.20 / 10.10	—	2
—	26.60 / 30.40	—	215	110	—	8.10 / 11.90	—	1
—	23.70 / 27.70	—	22	115	—	10.10 / 13.90	—	7
—	21.10 / 25.00	—	29	120	—	12.30 / 16.20	—	1
—	18.60 / 22.40	—	12	125	—	14.80 / 18.70	—	3
18.30	16.30 / 19.70	5	20	130	—	17.60 / 21.40	—	1
16.65	14.40 / 18.00	2	24	135	—	20.90 / 24.30	—	25
—	12.60 / 16.40	—	11	140	—	23.70 / 27.50	—	3
—	11.00 / 14.50	—	10	145	—	26.90 / 30.80	—	—
—	9.50 / 13.40	—	36	150	—	30.40 / 34.30	—	—
—	8.30 / 12.00	—	424	155	—	34.00 / 38.00	—	—
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 INSM

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