ISRG · Option chain

ISRG Option Chain

Every listed ISRG 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

$369.83

Call open interest

15,021

Put open interest

25,341

Put/call (volume)

3.00

3,350 contracts changed hands across these expirations — 838 calls against 2,512 puts. Puts outtraded calls 3.00 to one.

Sep 11, 20266 days

call OI 784 · put OI 616

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	87.70 / 93.00	—	—	280	—	0.00 / 8.00	—	1
—	71.00 / 78.20	—	—	295	—	0.00 / 5.10	—	6
—	66.00 / 73.40	—	1	300	—	0.00 / 6.80	—	—
—	62.80 / 68.70	—	—	305	—	0.00 / 0.45	—	5
—	57.80 / 63.70	—	—	310	3.19	0.00 / 6.80	2	—
—	46.40 / 53.80	—	—	320	—	0.00 / 5.10	—	8
—	42.90 / 48.80	—	—	325	0.13	0.00 / 0.20	1	3
—	38.00 / 43.90	—	—	330	0.19	0.00 / 0.90	1	4
—	31.50 / 39.00	—	—	335	—	0.00 / 0.60	—	3
—	26.50 / 33.70	—	—	340	0.57	0.00 / 0.55	1	13
—	25.80 / 31.80	—	—	342.5	0.90	0.00 / 1.00	30	—
—	21.70 / 29.20	—	—	345	0.70	0.00 / 2.85	12	1
—	21.10 / 27.20	—	—	347.5	—	0.00 / 2.50	—	2
20.50	18.10 / 22.00	3	—	350	1.00	0.60 / 1.60	14	112
17.20	15.10 / 22.80	10	—	352.5	2.05	0.00 / 5.70	8	14
—	12.90 / 20.70	—	—	355	1.85	0.60 / 5.00	24	41
—	10.30 / 18.70	—	—	357.5	1.80	0.00 / 3.20	12	12
13.90	8.60 / 16.00	2	4	360	2.80	0.75 / 8.30	46	35
—	7.70 / 15.20	—	—	362.5	3.63	1.85 / 5.10	3	34
9.70	7.10 / 12.90	4	17	365	—	2.00 / 8.80	—	30
8.73	3.60 / 9.20	3	—	367.5	5.50	3.60 / 7.10	3	14
7.05	4.40 / 10.90	17	28	370	6.66	3.60 / 8.50	14	103
6.03	3.40 / 9.70	9	30	372.5	7.30	4.20 / 12.60	2	6
5.23	1.10 / 6.10	5	77	375	10.90	5.70 / 13.50	2	54
—	0.00 / 8.60	—	30	377.5	11.25	7.30 / 13.90	13	29
3.50	0.45 / 4.50	9	31	380	12.05	11.00 / 17.80	3	24
—	0.05 / 5.30	—	23	382.5	—	11.10 / 19.60	—	—
2.16	0.00 / 6.00	16	57	385	—	13.10 / 19.50	—	3
1.50	0.75 / 3.00	4	14	387.5	15.65	15.30 / 23.20	1	16
1.19	0.30 / 2.00	4	43	390	21.60	17.50 / 25.40	12	14
—	0.45 / 3.20	—	32	392.5	—	20.80 / 27.50	—	—
0.50	0.00 / 2.55	5	28	395	28.15	22.70 / 29.80	4	21
0.80	0.00 / 2.20	2	66	397.5	—	25.60 / 32.20	—	—
1.00	0.20 / 1.20	1	110	400	—	27.20 / 34.60	—	6
—	0.00 / 6.60	—	1	402.5	—	29.40 / 37.00	—	—
—	0.00 / 7.00	—	22	405	—	31.80 / 39.30	—	1
0.16	0.00 / 0.90	1	39	410	—	36.80 / 44.50	—	1
—	0.00 / 6.90	—	31	415	—	41.80 / 49.50	—	—
—	0.00 / 0.40	—	71	420	—	46.80 / 54.50	—	—
—	0.00 / 0.25	—	17	425	—	51.80 / 59.50	—	—
—	0.00 / 6.80	—	6	430	—	56.80 / 64.50	—	—
—	0.00 / 6.80	—	1	435	—	61.80 / 69.50	—	—
—	0.00 / 6.80	—	1	440	—	66.80 / 74.50	—	—
—	0.00 / 6.80	—	4	450	—	77.30 / 84.50	—	—
A dash means the contract did not trade — not a price of zero.

Sep 18, 202613 days

call OI 8,207 · put OI 15,072

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	86.30 / 94.00	—	14	280	—	0.00 / 1.10	—	71
—	81.30 / 89.00	—	—	285	—	0.00 / 1.45	—	14
—	76.30 / 84.00	—	14	290	—	0.00 / 1.45	—	61
—	73.10 / 79.00	—	—	295	—	0.00 / 1.05	—	61
—	66.40 / 74.00	—	31	300	—	0.00 / 1.10	—	418
—	61.40 / 69.10	—	3	305	—	0.00 / 1.30	—	181
—	56.50 / 64.10	—	17	310	—	0.00 / 0.50	—	3,709
—	53.30 / 59.20	—	3	315	—	0.00 / 1.00	—	160
—	48.40 / 54.10	—	36	320	0.29	0.20 / 1.00	1	975
—	43.50 / 49.40	—	9	325	—	0.30 / 1.05	—	313
—	36.70 / 44.60	—	42	330	0.69	0.05 / 1.10	2	365
—	33.70 / 39.50	—	359	335	—	0.70 / 2.20	—	542
—	27.80 / 35.40	—	254	340	1.47	1.00 / 2.35	12	775
—	24.80 / 31.00	—	72	345	1.95	0.25 / 2.00	4	150
25.90	21.00 / 28.90	1	—	347.5	—	1.00 / 5.80	—	7
24.30	19.70 / 25.40	1	216	350	3.00	2.50 / 3.30	11	2,476
18.10	15.30 / 21.50	62	47	355	3.20	1.15 / 8.80	3	198
—	13.50 / 19.60	—	—	357.5	4.50	0.50 / 5.50	1	2
14.80	11.20 / 19.60	2	120	360	5.05	4.70 / 8.90	4	344
13.80	9.40 / 18.00	1	2	362.5	—	2.25 / 10.80	—	11
11.53	8.10 / 16.60	1	222	365	—	5.70 / 11.60	—	500
—	7.20 / 14.30	—	3	367.5	9.00	4.40 / 12.80	51	26
10.60	5.40 / 13.90	6	305	370	8.75	6.70 / 12.10	14	812
7.70	4.90 / 12.30	1	24	372.5	10.30	7.70 / 14.40	64	30
7.45	3.90 / 11.50	12	358	375	14.50	8.30 / 14.00	37	307
5.50	2.40 / 10.00	25	447	377.5	—	9.70 / 16.40	—	15
5.40	4.70 / 9.60	58	305	380	16.45	13.40 / 18.50	5	466
—	0.30 / 9.10	—	11	382.5	—	15.00 / 20.10	—	1
3.53	3.00 / 8.80	4	172	385	—	14.90 / 23.60	—	113
—	0.20 / 8.50	—	8	387.5	—	19.70 / 24.50	—	2
3.30	2.80 / 4.80	157	528	390	22.60	18.90 / 25.10	3	322
—	0.00 / 4.90	—	8	392.5	24.44	21.20 / 28.90	1	—
2.79	1.65 / 5.60	2	126	395	28.90	24.00 / 29.40	4	72
2.48	1.00 / 5.40	1	16	397.5	—	25.40 / 33.20	—	—
1.65	1.10 / 2.20	31	1,095	400	—	28.50 / 33.70	—	258
—	0.20 / 2.60	—	17	402.5	—	29.90 / 38.00	—	—
—	0.75 / 1.70	—	174	405	—	33.20 / 38.40	—	207
0.78	0.25 / 1.95	1	420	410	—	37.00 / 44.50	—	317
—	0.00 / 1.75	—	170	415	—	42.50 / 47.80	—	43
0.38	0.00 / 1.50	8	714	420	—	46.80 / 54.90	—	334
0.40	0.00 / 0.80	2	201	425	—	51.80 / 59.30	—	30
0.25	0.00 / 0.95	13	215	430	62.92	56.80 / 64.30	124	98
—	0.00 / 1.00	—	75	435	—	61.80 / 68.10	—	2
0.20	0.00 / 0.60	1	426	440	72.50	67.00 / 72.50	602	122
—	0.00 / 1.00	—	78	445	78.30	72.50 / 77.70	19	10
0.10	0.00 / 0.50	28	586	450	79.10	76.80 / 85.00	249	31
—	0.00 / 1.10	—	61	455	—	82.40 / 87.70	—	6
0.29	0.00 / 1.10	1	203	460	90.60	87.60 / 93.90	917	115
A dash means the contract did not trade — not a price of zero.

Sep 25, 202620 days

call OI 964 · put OI 550

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	57.00 / 64.70	—	—	310	0.50	0.00 / 4.50	3	11
—	52.10 / 59.50	—	—	315	—	0.35 / 1.00	—	6
—	47.70 / 54.40	—	1	320	—	0.35 / 1.00	—	12
—	42.60 / 49.60	—	15	325	—	0.00 / 7.20	—	2
—	38.60 / 45.20	—	1	330	—	0.50 / 1.30	—	17
—	33.00 / 40.90	—	—	335	—	0.00 / 4.00	—	4
—	30.00 / 36.50	—	—	340	2.10	0.00 / 2.60	6	41
—	24.30 / 32.30	—	—	345	3.00	0.40 / 3.40	15	47
—	20.20 / 28.40	—	—	350	3.60	2.30 / 7.70	7	47
—	16.20 / 25.00	—	—	355	5.90	2.10 / 6.60	10	15
—	13.70 / 21.70	—	7	360	—	3.00 / 11.00	—	94
15.31	10.40 / 18.70	2	5	365	9.76	5.40 / 12.00	2	21
—	8.10 / 12.70	—	28	370	—	7.50 / 14.40	—	110
—	5.10 / 13.70	—	26	375	—	10.00 / 16.60	—	19
8.00	6.40 / 11.60	7	12	380	—	13.10 / 21.70	—	33
—	1.10 / 10.00	—	5	385	—	16.40 / 22.80	—	15
4.37	1.95 / 8.70	1	22	390	—	20.10 / 28.00	—	18
—	0.00 / 7.90	—	30	395	30.67	25.30 / 32.00	10	28
2.70	2.00 / 5.80	4	52	400	—	28.00 / 36.90	—	5
2.12	0.20 / 5.20	1	202	405	—	33.60 / 41.10	—	—
—	0.00 / 4.00	—	16	410	—	37.90 / 45.30	—	3
—	0.00 / 2.80	—	59	415	—	42.60 / 50.00	—	—
1.15	0.00 / 2.40	12	23	420	—	47.20 / 54.80	—	1
—	0.00 / 4.80	—	7	425	—	52.20 / 59.70	—	—
—	0.00 / 9.60	—	269	430	—	56.90 / 64.60	—	1
—	0.00 / 5.60	—	39	435	—	61.90 / 69.60	—	—
—	0.00 / 1.60	—	104	440	—	66.90 / 74.50	—	—
—	0.00 / 5.50	—	13	445	—	71.80 / 79.50	—	—
—	0.00 / 3.30	—	19	450	—	76.80 / 84.50	—	—
—	0.00 / 5.40	—	1	455	—	81.80 / 89.50	—	—
—	0.00 / 7.10	—	8	460	—	86.80 / 94.50	—	—
A dash means the contract did not trade — not a price of zero.

Oct 02, 202627 days

call OI 266 · put OI 2,655

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	62.40 / 69.40	—	1	305	—	0.00 / 7.10	—	—
—	57.60 / 64.70	—	—	310	—	0.00 / 6.50	—	2
—	48.10 / 55.20	—	—	320	—	0.35 / 1.90	—	5
—	45.20 / 51.20	—	15	325	—	0.00 / 7.60	—	94
—	40.00 / 46.30	—	—	330	2.23	0.50 / 3.50	3	19
—	35.30 / 42.30	—	—	335	—	0.55 / 9.70	—	2,329
—	31.00 / 38.00	—	1	340	—	2.25 / 3.90	—	21
—	26.50 / 34.10	—	3	345	4.50	3.10 / 5.20	2	17
27.05	22.00 / 28.90	1	2	350	—	1.30 / 9.30	—	20
—	18.80 / 26.80	—	1	355	—	2.80 / 10.60	—	9
—	15.00 / 23.60	—	—	360	9.40	4.70 / 13.10	3	50
—	12.10 / 20.60	—	2	365	10.10	6.60 / 13.60	2	45
—	12.60 / 14.90	—	3	370	—	11.10 / 17.40	—	18
—	7.00 / 15.60	—	11	375	—	11.70 / 20.10	—	4
—	5.00 / 13.90	—	24	380	19.77	14.50 / 21.00	1	6
—	3.10 / 11.70	—	23	385	—	18.00 / 26.40	—	3
5.36	2.65 / 10.10	3	5	390	—	21.30 / 29.90	—	3
—	1.00 / 9.90	—	8	395	—	25.20 / 33.10	—	1
4.00	0.90 / 8.70	1	23	400	—	29.20 / 36.10	—	4
—	1.45 / 7.90	—	60	405	—	33.40 / 42.10	—	—
2.35	0.35 / 7.90	14	3	410	—	38.00 / 45.80	—	—
—	0.00 / 6.30	—	8	415	—	43.10 / 50.10	—	—
1.30	0.00 / 4.20	29	53	420	—	47.20 / 55.00	—	2
—	0.40 / 7.30	—	13	425	—	52.30 / 59.60	—	3
—	0.00 / 7.10	—	3	435	—	61.80 / 69.40	—	—
—	0.00 / 2.70	—	1	440	—	65.80 / 75.00	—	—
—	0.00 / 2.50	—	3	450	—	76.80 / 84.50	—	—
A dash means the contract did not trade — not a price of zero.

Oct 09, 202634 days

call OI 132 · put OI 24

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	49.30 / 56.00	—	—	320	—	0.00 / 6.10	—	1
—	44.90 / 51.20	—	—	325	—	0.00 / 6.40	—	4
—	39.40 / 46.80	—	—	330	—	0.00 / 3.80	—	1
—	36.20 / 42.60	—	6	335	—	1.95 / 7.20	—	3
—	27.00 / 34.50	—	—	345	5.50	1.50 / 8.30	1	6
—	20.10 / 27.40	—	—	355	—	4.40 / 9.40	—	1
—	17.00 / 24.20	—	—	360	9.77	6.20 / 13.10	2	—
18.00	16.60 / 20.90	1	7	365	10.50	8.30 / 15.10	2	—
13.90	12.00 / 18.60	4	7	370	—	10.60 / 17.50	—	1
—	9.00 / 16.40	—	53	375	—	13.20 / 20.10	—	2
—	7.00 / 14.30	—	1	380	—	16.10 / 23.00	—	—
8.71	5.40 / 12.40	1	1	385	—	19.30 / 26.00	—	1
—	4.00 / 10.80	—	1	390	—	23.00 / 29.60	—	—
—	2.10 / 9.40	—	15	395	—	26.40 / 33.30	—	—
—	1.00 / 8.30	—	17	400	—	30.30 / 37.30	—	1
—	0.05 / 7.70	—	2	405	—	34.40 / 41.40	—	1
3.03	0.00 / 6.00	1	16	410	—	39.00 / 45.70	—	—
—	0.00 / 6.80	—	1	415	—	43.10 / 50.10	—	1
—	0.00 / 6.40	—	—	420	50.58	47.70 / 54.60	1	1
—	0.00 / 3.00	—	1	430	—	56.90 / 64.00	—	—
—	0.00 / 5.80	—	4	435	—	61.70 / 68.90	—	—
A dash means the contract did not trade — not a price of zero.

Oct 16, 202641 days

call OI 4,668 · put OI 6,424

Calls				Strike	Puts
Last	Bid / Ask	Vol	OI		Last	Bid / Ask	Vol	OI
—	87.70 / 95.40	—	27	280	0.80	0.00 / 1.60	2	80
—	82.80 / 90.50	—	—	285	—	0.00 / 7.00	—	2
—	77.90 / 85.60	—	18	290	—	0.10 / 1.80	—	70
—	73.10 / 80.80	—	—	295	—	0.05 / 2.25	—	15
71.45	69.50 / 76.00	2	16	300	1.03	0.70 / 1.25	2	139
—	63.60 / 71.30	—	3	305	—	0.45 / 6.00	—	7
60.80	60.40 / 66.70	2	18	310	1.50	1.00 / 2.00	1	181
—	56.00 / 62.10	—	2	315	—	1.00 / 3.00	—	20
—	49.60 / 57.60	—	15	320	2.84	1.20 / 2.90	3	173
—	47.20 / 53.30	—	3	325	2.82	2.40 / 3.20	5	222
—	43.50 / 49.00	—	20	330	3.70	2.80 / 4.30	5	325
—	39.20 / 45.00	—	13	335	5.00	3.90 / 5.00	8	129
—	35.10 / 41.00	—	5	340	5.57	4.90 / 6.20	13	1,102
—	29.20 / 37.40	—	7	345	7.55	6.00 / 8.40	5	98
28.55	27.00 / 32.70	1	150	350	8.30	6.10 / 10.00	3	456
—	22.00 / 30.50	—	47	355	10.30	6.10 / 11.90	1	116
—	21.00 / 27.50	—	86	360	12.10	9.20 / 15.00	2	392
21.50	16.70 / 24.60	3	130	365	14.00	11.30 / 17.90	6	127
19.00	17.40 / 19.00	72	91	370	16.20	14.30 / 17.80	45	256
16.07	14.20 / 19.50	3	155	375	—	17.30 / 23.40	—	185
13.20	9.20 / 16.00	10	290	380	22.95	18.00 / 26.40	1	617
11.10	8.50 / 12.10	5	20	385	24.88	22.30 / 29.50	1	74
9.60	5.40 / 13.80	2	231	390	29.60	24.40 / 31.80	1	275
8.34	4.90 / 12.40	2	88	395	—	28.90 / 36.50	—	56
7.36	5.10 / 7.50	60	305	400	37.49	32.50 / 40.20	1	470
5.66	3.20 / 7.50	11	335	405	—	36.60 / 43.70	—	44
5.00	3.30 / 6.20	40	288	410	—	41.10 / 48.40	—	112
4.10	2.10 / 7.50	7	230	415	—	44.50 / 52.40	—	306
3.50	2.30 / 4.90	7	348	420	51.33	49.80 / 56.00	1	47
3.09	2.40 / 6.10	5	112	425	—	54.30 / 60.30	—	77
2.60	0.20 / 5.10	6	119	430	—	58.60 / 65.50	—	112
2.10	0.00 / 4.20	1	160	435	—	62.20 / 70.20	—	28
2.25	0.20 / 3.40	1	334	440	—	67.00 / 74.70	—	14
1.42	0.00 / 2.00	1	96	445	—	71.90 / 79.60	—	36
1.04	0.55 / 5.00	1	396	450	—	76.80 / 84.50	—	44
—	0.15 / 1.90	—	242	455	—	81.30 / 89.80	—	5
—	0.05 / 1.85	—	268	460	—	86.80 / 94.40	—	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 ISRG

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