XBI option chain State Street SPDR S&P Biotech ETF

Expiration Cboe delayed options data · as of 12:46 UTC

Each row is one strike. The left half is the call, the right half the put. Bid/ask are what buyers and sellers currently quote; volume is contracts traded this session; open interest is standing contracts. The highlighted row sits closest to the stock price.

This expiration prices a move of about ±4.8% (140.77–154.97) · ATM IV 34.5% · P/C open interest 8.02

CALLS								Strike	PUTS
Bid	Ask	Vol	OIThe number of option contracts currently outstanding at a strike or expiration. High open interest shows where positions are concentrated.	IV	ΔModel sensitivity of an option's price to a $1 move in the stock; also used as a rough moneyness scale (a 25-delta option is well out of the money).	Γ	Θ		Bid	Ask	Vol	OI	IV	Δ	Γ	Θ
61.10	64.30				1.00	0.0002	-0.001	85	0	1.16			183.4%	-0.00	0.0002	-0.009
56.40	59.80			135.2%	1.00	0.0003	-0.003	90	0	0.5600			146.9%	-0.00	0.0003	-0.010
51.10	54.60				1.00	0.0004	-0.005	95	0	0.1600			110.8%	-0.00	0.0004	-0.011
46.15	49.60				0.99	0.0006	-0.007	100	0	0.5600			119.3%	-0.00	0.0006	-0.013
41.85	44.00				0.99	0.0008	-0.010	105	0	0.3600			99.0%	-0.01	0.0008	-0.015
36.30	39.45				0.99	0.0012	-0.013	110	0	0.1700			78.0%	-0.01	0.0012	-0.017
31.75	34.25			56.5%	0.99	0.0018	-0.017	115	0	0.1800			68.2%	-0.01	0.0018	-0.021
26.20	29.35				0.98	0.0028	-0.023	120	0	0.6100		3	71.4%	-0.02	0.0029	-0.026
21.40	24.55				0.97	0.0047	-0.032	125	0	0.3400		23	53.5%	-0.03	0.0047	-0.035
16.45	19.85		8	41.7%	0.95	0.0082	-0.045	130	0	0.5500	2	15.4K	47.2%	-0.05	0.0083	-0.048
0	0				0.00	0.0000	0.000	131	0	0				0.00	0.0000	0.000
0	0				0.00	0.0000	0.000	132	0	0				0.00	0.0000	0.000
0	0				0.00	0.0000	0.000	133	0	0				0.00	0.0000	0.000
0	0				0.00	0.0000	0.000	134	0	0				0.00	0.0000	0.000
11.70	15.20	2	4	40.4%	0.91	0.0154	-0.070	135	0.1300	0.7100	8	203	39.9%	-0.09	0.0155	-0.072
11.20	13.75			38.5%	0.90	0.0175	-0.078	136	0	0.9000	4	4	38.2%	-0.10	0.0176	-0.080
10.40	12.50			35.4%	0.88	0.0199	-0.086	137	0.3900	0.7700	3	10	38.4%	-0.12	0.0200	-0.088
9.70	11.50		2	35.9%	0.86	0.0224	-0.095	138	0.2000	1.16	17	25	37.7%	-0.14	0.0226	-0.097
8.15	11.35			35.9%	0.84	0.0252	-0.105	139	0.6400	0.9500	1	23	36.9%	-0.16	0.0253	-0.106
8.35	9.60		39	36.5%	0.81	0.0280	-0.115	140	0.9400	1.03	3,080	19.8K	36.9%	-0.19	0.0282	-0.117
6.70	8.90			31.0%	0.78	0.0308	-0.125	141	0.8900	1.44		18	36.4%	-0.22	0.0310	-0.127
6.90	8.20			37.9%	0.75	0.0335	-0.135	142	1.19	1.62	294	597	36.3%	-0.25	0.0338	-0.136
6.40	7.20		42	37.4%	0.72	0.0361	-0.144	143	0.7800	2.37	713	902	35.0%	-0.28	0.0364	-0.145
4.75	7.40	41	79	36.8%	0.68	0.0385	-0.151	144	1.71	2.40	111	109	36.8%	-0.32	0.0388	-0.153
4.25	5.90		12	33.0%	0.64	0.0405	-0.158	145	1.93	2.66	46	379	35.4%	-0.36	0.0408	-0.159
3.65	5.90	7	82	36.1%	0.60	0.0422	-0.163	146	2.36	3.65	6	1,266	38.5%	-0.40	0.0425	-0.164
3.80	4.60		51	35.8%	0.56	0.0434	-0.165	147	2.74	3.95	10	43	37.4%	-0.45	0.0437	-0.167
3.30	3.90	48	46	35.0%	0.51	0.0441	-0.166	148	3.25	3.75	13	177	34.1%	-0.49	0.0444	-0.167
2.80	3.65	33	98	35.9%	0.47	0.0443	-0.165	149	3.65	4.95	140	386	36.7%	-0.53	0.0446	-0.166
2.28	3.95		2	37.0%	0.45	0.0442	-0.163	149.5	3.45	4.60	9	33	31.2%	-0.56	0.0445	-0.164
2.43	2.73	37	149	33.7%	0.43	0.0439	-0.161	150	3.80	5.70	2,011	6,548	35.5%	-0.58	0.0442	-0.162
1.88	2.68	27	60	34.5%	0.38	0.0430	-0.156	151	4.70	5.70	41	102	33.7%	-0.62	0.0433	-0.157
1.31	2.31	2	7	33.1%	0.34	0.0415	-0.148	152	5.25	7.00	6	1,323	36.5%	-0.66	0.0419	-0.149
1.52	1.97	45	76	34.0%	0.32	0.0406	-0.144	152.5	5.60	6.80		11	33.6%	-0.68	0.0410	-0.145
0.9400	2.19	11	22	33.6%	0.30	0.0396	-0.139	153	6.00	7.70		85	36.8%	-0.70	0.0400	-0.140
1.05	1.60	2	10	33.8%	0.26	0.0373	-0.129	154	6.75	8.60		61	37.9%	-0.74	0.0377	-0.130
0.8600	1.38	38	1,668	34.1%	0.23	0.0346	-0.118	155	7.40	9.25		80	36.6%	-0.78	0.0350	-0.118
0.5900	1.00	32	93	32.2%	0.19	0.0317	-0.106	156	8.15	10.30	10	40	38.0%	-0.81	0.0322	-0.107
0.2500	1.00	41	115	31.9%	0.16	0.0286	-0.094	157	9.00	10.60	1	7	34.5%	-0.84	0.0292	-0.095
0.3300	0.8400	89	102	32.4%	0.15	0.0271	-0.089	157.5	9.30	11.00		6	33.2%	-0.86	0.0276	-0.089
0.3200	1.08	43	283	35.5%	0.14	0.0255	-0.083	158	9.80	12.05		27	38.8%	-0.87	0.0261	-0.084
0.2300	0.8100	106	594	34.5%	0.11	0.0225	-0.072	159	10.75	12.70	11	4	37.9%	-0.89	0.0231	-0.073
0.1800	0.5900	60	397	33.7%	0.09	0.0196	-0.063	160	11.50	13.60	11	81	36.7%	-0.91	0.0203	-0.064
0.1300	0.4500	34	468	33.3%	0.08	0.0170	-0.055	161	12.10	14.55	10	13	33.2%	-0.93	0.0177	-0.056
0.1400	0.3100	4	145	33.2%	0.07	0.0147	-0.048	162	13.10	15.60	10	7	35.8%	-0.94	0.0154	-0.048
0.0300	0.4000		74	33.8%	0.06	0.0137	-0.044	162.5	13.80	15.80			35.1%	-0.95	0.0144	-0.045
0.1100	0.2500	3	100	32.2%	0.06	0.0127	-0.042	163	13.70	17.00		11	37.6%	-0.95	0.0134	-0.042
0	0.2800		33	33.4%	0.05	0.0110	-0.037	164	15.25	17.60	1	10	41.6%	-0.96	0.0118	-0.037
0.0100	0.3800	4	138	37.3%	0.04	0.0096	-0.033	165	15.85	18.80		4	40.4%	-0.97	0.0104	-0.033
0	0.2700		6	36.4%	0.04	0.0084	-0.030	166	16.45	19.95			36.5%	-0.98	0.0093	-0.030
0	0.1600		60	34.8%	0.03	0.0074	-0.027	167	18.05	20.70		9	45.5%	-0.98	0.0082	-0.027
0	0.1500		10	35.1%	0.03	0.0070	-0.026	167.5	18.30	21.30			43.7%	-0.98	0.0077	-0.026
0	0.2300		75	38.4%	0.03	0.0066	-0.025	168	19.15	21.55			46.4%	-0.98	0.0073	-0.025
0	0.2200		345	39.6%	0.02	0.0059	-0.023	169	19.45	21.95				-0.99	0.0064	-0.023
0	0.1900	5	162	40.1%	0.02	0.0053	-0.022	170	20.90	23.55			44.1%	-0.99	0.0058	-0.022
0	0.2000		6	41.8%	0.02	0.0048	-0.021	171	21.45	24.80				-0.99	0.0052	-0.020
0	0.2000		6	43.2%	0.02	0.0044	-0.020	172	22.10	26.00				-0.99	0.0047	-0.019
0	0.1900		8	43.5%	0.02	0.0042	-0.019	172.5	22.60	26.55				-0.99	0.0044	-0.019
0	0.1900		7	44.2%	0.02	0.0041	-0.019	173	24.20	26.20			46.9%	-0.99	0.0041	-0.018
0	0.1800	10	72	45.2%	0.02	0.0037	-0.018	174	24.60	27.95			52.8%	-0.99	0.0037	-0.018
0	0.1700		65	46.2%	0.02	0.0034	-0.018	175	25.65	28.55				-0.99	0.0033	-0.017
0	0.1700		35	52.6%	0.01	0.0024	-0.015	180	31.20	33.80			70.9%	-1.00	0.0018	-0.015
0	0.3700		18	66.1%	0.01	0.0018	-0.013	185	36.25	38.80			79.4%	-1.00	0.0011	-0.013
0	0.1200		91	61.9%	0.01	0.0013	-0.011	190	40.40	43.85				-1.00	0.0006	-0.013
0	0.1600		2	69.8%	0.01	0.0010	-0.010	195	46.20	48.60			88.5%	-1.00	0.0003	-0.012
0	0.3600			84.2%	0.00	0.0008	-0.009	200	50.10	54.10				-1.00	0.0001	-0.012

Strikes shown: within ±50% of the underlying price. Intrinsic value = max(0, price − strike) for calls, max(0, strike − price) for puts; extrinsic = option price − intrinsic. Greeks and IV as computed by the exchange feed.

Volatility smile — Oct 30, 2026

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Implied volatility per strike for this expiration. Out-of-the-money puts usually price higher IV than calls — the skew.

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XBI option chain State Street SPDR S&P Biotech ETF

Volatility smile — Oct 30, 2026

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