XBI option chain State Street SPDR S&P Biotech ETF

Expiration Cboe delayed options data · as of 15:46 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 ±5.3% (139.32–154.92) · ATM IV 37.8% · P/C open interest 8.55

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
60.40	62.80				1.00	0.0001	0.000	85	0	0.5600			159.4%	-0.00	0.0001	-0.003
55.40	57.80				1.00	0.0002	0.000	90	0	0.1600			121.0%	-0.00	0.0002	-0.005
50.40	52.80				1.00	0.0004	-0.002	95	0	0.1600			108.9%	-0.00	0.0004	-0.008
45.40	47.85				1.00	0.0006	-0.006	100	0	0.3600			109.3%	-0.00	0.0006	-0.011
40.45	42.80				0.99	0.0009	-0.010	105	0	0.1600			86.4%	-0.01	0.0009	-0.015
35.45	37.80				0.99	0.0014	-0.015	110	0	0.1700			76.4%	-0.01	0.0014	-0.019
30.45	32.80				0.99	0.0021	-0.020	115	0	0.1800			66.7%	-0.01	0.0021	-0.024
25.45	27.85				0.98	0.0032	-0.026	120	0	0.2100		3	57.9%	-0.02	0.0032	-0.029
20.45	22.90				0.97	0.0051	-0.033	125	0	0.2800		23	50.2%	-0.03	0.0051	-0.036
15.60	17.85		8		0.95	0.0088	-0.047	130	0.1300	0.3100	2	15.4K	43.6%	-0.05	0.0089	-0.049
11.10	13.25	2	3		0.90	0.0170	-0.079	135	0.4000	0.8400	4	198	42.6%	-0.10	0.0171	-0.081
10.10	12.50				0.88	0.0192	-0.087	136	0.4600	0.7900	1		40.1%	-0.12	0.0193	-0.089
10.10	11.75			35.8%	0.86	0.0216	-0.097	137	0.5400	1.31		7	42.7%	-0.14	0.0217	-0.099
8.50	10.90		2	28.4%	0.84	0.0241	-0.107	138	0.6600	1.51	10	32	42.3%	-0.16	0.0243	-0.108
7.75	10.10			30.6%	0.82	0.0267	-0.116	139	0.8600	1.23		22	38.8%	-0.18	0.0269	-0.118
7.10	8.80		39	28.4%	0.79	0.0294	-0.126	140	1.10	1.61	2,009	18.8K	40.0%	-0.21	0.0296	-0.128
6.35	8.80			34.6%	0.76	0.0320	-0.135	141	1.10	1.68		18	37.2%	-0.24	0.0322	-0.137
6.50	7.20			34.7%	0.73	0.0346	-0.143	142	1.59	1.82	77	450	37.6%	-0.27	0.0348	-0.145
5.30	6.75		42	33.3%	0.69	0.0370	-0.151	143	1.89	2.23	70	247	38.0%	-0.31	0.0373	-0.152
5.20	5.75	41	40	34.5%	0.65	0.0391	-0.157	144	2.22	2.38	108	64	36.6%	-0.35	0.0395	-0.158
3.80	5.60		12	32.9%	0.61	0.0410	-0.161	145	2.56	2.97	31	408	37.5%	-0.39	0.0413	-0.163
3.85	4.50	1	87	33.5%	0.57	0.0424	-0.164	146	2.80	3.60		1,266	37.5%	-0.43	0.0428	-0.166
3.65	4.75		51	38.9%	0.53	0.0434	-0.165	147	3.35	3.85		39	36.8%	-0.47	0.0438	-0.167
3.00	3.40	2	24	33.8%	0.49	0.0438	-0.165	148	3.85	5.20	10	178	40.7%	-0.52	0.0442	-0.166
2.40	3.05		76	33.5%	0.44	0.0437	-0.162	149	4.35	4.95	107	414	36.4%	-0.56	0.0441	-0.163
1.90	2.83		2	31.9%	0.42	0.0434	-0.160	149.5	4.55	6.35		24	41.4%	-0.58	0.0438	-0.161
2.37	2.52	33	118	34.7%	0.40	0.0430	-0.157	150	5.00	5.65	2,000	6,544	37.2%	-0.61	0.0434	-0.158
1.61	2.26	1	35	33.0%	0.36	0.0418	-0.150	151	5.65	6.15	1	124	36.5%	-0.65	0.0422	-0.151
1.39	2.45	1	7	36.1%	0.32	0.0401	-0.142	152	6.25	6.95		1,317	36.7%	-0.69	0.0405	-0.143
1.23	1.80	2	33	33.3%	0.30	0.0391	-0.138	152.5	6.55	7.25		11	36.1%	-0.71	0.0395	-0.139
1.33	1.53	9	11	33.8%	0.28	0.0379	-0.133	153	6.60	8.45		85	39.0%	-0.73	0.0384	-0.134
0.9300	1.43	1	8	33.7%	0.24	0.0354	-0.123	154	7.40	9.70		61	42.4%	-0.76	0.0359	-0.124
0.8500	1.05	3	1,642	33.3%	0.21	0.0327	-0.113	155	8.30	9.20		80	35.4%	-0.80	0.0332	-0.114
0.4500	1.29		61	34.7%	0.18	0.0298	-0.102	156	9.05	11.40		38	44.2%	-0.83	0.0304	-0.103
0.5000	0.7900		75	33.5%	0.15	0.0269	-0.091	157	10.20	11.60	1	6	42.6%	-0.85	0.0275	-0.092
0.2900	1.05		18	35.1%	0.14	0.0254	-0.086	157.5	10.45	12.65		6	45.9%	-0.87	0.0261	-0.088
0.2500	0.8900		280	34.4%	0.13	0.0240	-0.082	158	10.80	12.40		27	40.6%	-0.88	0.0247	-0.083
0.3300	0.5400	3	488	33.9%	0.11	0.0213	-0.072	159	11.75	12.80	11	11	37.3%	-0.90	0.0220	-0.074
0.1800	0.5100		339	33.8%	0.09	0.0187	-0.064	160	12.65	14.95	11	91	48.4%	-0.92	0.0194	-0.066
0.1300	0.4400		434	34.2%	0.08	0.0164	-0.057	161	13.50	15.20	3	19	43.0%	-0.93	0.0172	-0.059
0.1400	0.3200	4	147	34.3%	0.07	0.0144	-0.051	162	14.45	16.25	3	11	45.1%	-0.94	0.0152	-0.052
0.0300	0.4000		74	34.7%	0.06	0.0135	-0.048	162.5	15.05	17.35			52.4%	-0.95	0.0143	-0.050
0.0100	0.3700		100	34.7%	0.06	0.0127	-0.046	163	15.40	17.85		11	52.2%	-0.95	0.0135	-0.047
0.0500	0.2800		33	35.3%	0.05	0.0112	-0.042	164	16.50	18.25	1	11	49.6%	-0.96	0.0120	-0.043
0.0400	0.2200		134	35.4%	0.05	0.0099	-0.038	165	17.70	19.15		4	52.6%	-0.97	0.0107	-0.039
0	0.2700		6	37.1%	0.04	0.0088	-0.035	166	18.35	20.80			57.5%	-0.97	0.0096	-0.036
0	0.2500		60	38.2%	0.04	0.0079	-0.033	167	19.45	21.75		9	60.0%	-0.98	0.0086	-0.033
0	0.1900		10	37.2%	0.03	0.0075	-0.032	167.5	19.95	22.25			61.0%	-0.98	0.0081	-0.032
0	0.2300		75	39.1%	0.03	0.0072	-0.031	168	20.40	22.75			61.5%	-0.98	0.0077	-0.031
0	0.2200		345	40.3%	0.03	0.0065	-0.029	169	21.35	23.75			62.9%	-0.98	0.0069	-0.030
0	0.1900	5	162	40.7%	0.03	0.0060	-0.028	170	22.40	24.75			65.3%	-0.98	0.0062	-0.028
0	0.2000		6	42.5%	0.03	0.0055	-0.027	171	23.40	25.75			67.2%	-0.99	0.0057	-0.027
0	0.2000		6	43.9%	0.02	0.0051	-0.026	172	24.40	26.75			69.1%	-0.99	0.0052	-0.026
0	0.1900		8	44.2%	0.02	0.0049	-0.026	172.5	24.90	27.25			70.0%	-0.99	0.0050	-0.026
0	0.1900		7	44.9%	0.02	0.0047	-0.025	173	25.40	27.75			70.9%	-0.99	0.0048	-0.025
0	0.1900		72	46.2%	0.02	0.0044	-0.025	174	26.40	28.80			73.3%	-0.99	0.0044	-0.024
0	0.1800		65	47.2%	0.02	0.0041	-0.024	175	27.40	29.75			74.5%	-0.99	0.0040	-0.024
0	0.1700		35	53.2%	0.02	0.0030	-0.021	180	32.40	34.75			83.2%	-0.99	0.0026	-0.021
0	0.1700		18	59.3%	0.01	0.0022	-0.019	185	37.35	39.75			90.8%	-1.00	0.0018	-0.019
0	0.1600		91	64.6%	0.01	0.0017	-0.016	190	42.35	44.75			98.6%	-1.00	0.0012	-0.018
0	0.1600		2	70.2%	0.01	0.0013	-0.014	195	47.40	49.75			106.7%	-1.00	0.0007	-0.017
0	0.1600			75.6%	0.01	0.0010	-0.012	200	52.45	54.80			115.3%	-1.00	0.0004	-0.016

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

Volatility page →

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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