XBI option chain State Street SPDR S&P Biotech ETF

Expiration Cboe delayed options data · as of 06:39 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 ±8.1% (151.49–178.24) · ATM IV 31.9% · P/C open interest 10.32

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
78.25	82.40			75.9%	1.00	0.0003	0.000	85	0	2.13			129.6%	-0.00	0.0002	-0.004
73.30	77.50			74.5%	1.00	0.0003	0.000	90	0	2.13			119.9%	-0.00	0.0002	-0.004
68.40	72.45			70.9%	1.00	0.0003	0.000	95	0	2.13			110.8%	-0.00	0.0003	-0.004
63.50	67.55			72.7%	0.99	0.0004	0.000	100	0	2.13			102.0%	-0.00	0.0004	-0.005
58.50	62.55			65.5%	0.99	0.0005	-0.000	105	0	2.13			93.7%	-0.01	0.0005	-0.006
53.40	57.55			54.8%	0.99	0.0007	-0.002	110	0	0.8800			71.7%	-0.01	0.0006	-0.007
48.45	52.60			51.8%	0.99	0.0009	-0.003	115	0	1.84			75.5%	-0.01	0.0009	-0.008
43.55	47.60			46.7%	0.99	0.0013	-0.005	120	0	2.14			70.7%	-0.01	0.0012	-0.009
38.50	42.70			42.8%	0.98	0.0018	-0.008	125	0	1.19			55.5%	-0.02	0.0018	-0.012
33.80	37.65			41.2%	0.97	0.0027	-0.012	130	0	1.54			52.0%	-0.02	0.0027	-0.015
29.45	32.25			38.1%	0.96	0.0041	-0.018	135	0	0.8200		248	39.6%	-0.04	0.0041	-0.021
24.50	28.00			38.5%	0.94	0.0064	-0.027	140	0.1000	1.26	1		37.9%	-0.06	0.0064	-0.029
20.10	23.05		1	35.5%	0.90	0.0098	-0.041	145	0.4900	1.57		5	35.5%	-0.10	0.0098	-0.043
15.85	18.30			32.8%	0.83	0.0139	-0.058	150	1.13	1.84	1		32.6%	-0.17	0.0140	-0.060
12.55	15.90		1	34.4%	0.77	0.0172	-0.071	154	2.18	2.94			33.9%	-0.23	0.0173	-0.072
11.80	14.95			33.6%	0.75	0.0180	-0.074	155	2.41	3.20		1	33.7%	-0.25	0.0180	-0.075
11.10	14.20			33.4%	0.73	0.0187	-0.077	156	2.66	3.80	9		34.4%	-0.27	0.0188	-0.078
10.45	12.95			31.9%	0.71	0.0195	-0.079	157	2.92	3.85	10		33.5%	-0.29	0.0196	-0.080
10.05	13.05			32.9%	0.70	0.0198	-0.080	157.5	3.05	4.30			34.2%	-0.30	0.0199	-0.081
9.75	12.25			31.7%	0.69	0.0202	-0.081	158	3.20	4.20			33.4%	-0.31	0.0203	-0.083
9.00	12.10			32.8%	0.67	0.0208	-0.083	159	3.50	5.00	4		34.4%	-0.33	0.0210	-0.084
8.40	11.40	18		32.6%	0.65	0.0215	-0.085	160	3.80	5.30	7		33.9%	-0.35	0.0216	-0.086
7.70	10.70			32.1%	0.63	0.0221	-0.086	161	4.15	5.35			32.9%	-0.37	0.0222	-0.087
7.15	10.20			32.4%	0.60	0.0226	-0.087	162	4.50	6.10			33.5%	-0.39	0.0227	-0.088
6.90	8.80			29.7%	0.59	0.0228	-0.088	162.5	4.75	6.15			33.2%	-0.41	0.0230	-0.089
6.55	9.40	1		31.7%	0.58	0.0230	-0.088	163	4.95	6.55	4		33.5%	-0.42	0.0232	-0.089
5.95	8.85			31.4%	0.56	0.0234	-0.089	164	5.35	6.80			32.8%	-0.44	0.0236	-0.089
5.50	8.30			31.5%	0.53	0.0237	-0.089	165	5.60	7.35		4	32.4%	-0.47	0.0239	-0.090
5.60	7.95			33.2%	0.51	0.0239	-0.089	166	5.70	7.45			30.4%	-0.49	0.0241	-0.090
4.45	7.30			31.1%	0.49	0.0240	-0.088	167	5.65	8.95			31.2%	-0.51	0.0242	-0.089
4.55	6.30			29.9%	0.47	0.0240	-0.088	167.5	6.35	8.40			30.3%	-0.53	0.0242	-0.089
3.85	7.20			31.4%	0.46	0.0240	-0.088	168	7.05	8.35			30.4%	-0.54	0.0242	-0.088
3.45	6.25			30.2%	0.44	0.0239	-0.087	169	7.65	9.85			32.7%	-0.56	0.0242	-0.087
3.30	6.35		10	31.9%	0.41	0.0238	-0.086	170	7.90	9.70			30.0%	-0.59	0.0240	-0.086
2.87	5.70			31.1%	0.39	0.0235	-0.084	171	7.95	11.00			30.2%	-0.61	0.0237	-0.085
2.65	4.85			30.1%	0.37	0.0231	-0.083	172	8.60	11.60	4		30.0%	-0.63	0.0234	-0.083
2.44	4.70			30.0%	0.36	0.0229	-0.082	172.5	8.95	12.00			30.2%	-0.64	0.0232	-0.082
2.25	4.55			29.9%	0.35	0.0226	-0.081	173	9.45	12.30			30.5%	-0.65	0.0230	-0.081
1.97	4.60			30.9%	0.33	0.0221	-0.078	174	10.45	12.85			30.9%	-0.68	0.0224	-0.079
1.61	3.75		3	29.1%	0.30	0.0215	-0.076	175	10.70	13.10			28.3%	-0.70	0.0219	-0.076
1.54	3.85			30.6%	0.28	0.0209	-0.074	176	11.55	14.75			31.1%	-0.72	0.0212	-0.074
1.86	2.86			30.1%	0.27	0.0202	-0.071	177	12.50	15.50			31.6%	-0.74	0.0205	-0.071
1.38	2.97			29.6%	0.26	0.0198	-0.070	177.5	12.65	15.90			31.0%	-0.75	0.0202	-0.070
1.13	2.94			29.4%	0.25	0.0194	-0.068	178	13.30	16.05			31.1%	-0.76	0.0198	-0.069
1.02	2.76	1		29.8%	0.23	0.0186	-0.066	179	13.75	17.10			30.8%	-0.77	0.0190	-0.066
1.02	2.60		10	30.5%	0.21	0.0178	-0.063	180	15.15	17.45			31.2%	-0.79	0.0183	-0.063
0	3.60			29.1%	0.20	0.0170	-0.060	181	15.45	18.75			31.1%	-0.81	0.0175	-0.060
0.7900	3.45			34.9%	0.18	0.0162	-0.057	182	16.70	19.15			31.0%	-0.82	0.0167	-0.057
0.8700	2.19			31.4%	0.17	0.0158	-0.056	182.5	16.75	20.15			31.8%	-0.83	0.0162	-0.056
0.5500	1.83			31.5%	0.14	0.0138	-0.049	185	19.15	22.25			32.6%	-0.86	0.0142	-0.049
0	1.47			32.0%	0.09	0.0100	-0.036	190	23.35	26.85			31.5%	-0.91	0.0105	-0.035
0	1.54			36.7%	0.06	0.0070	-0.026	195	28.60	31.65			36.3%	-0.95	0.0076	-0.025
0	2.28			45.0%	0.04	0.0050	-0.019	200	32.60	36.75			31.3%	-0.97	0.0060	-0.018

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 09, 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 09, 2026

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