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XBI · State Street(R) SPDR(R) S&P(R) Biotech ETF ETF

Alerts for XBI
$163.81 -0.57 (-0.35%) At close · Sep 4

Options Chain

Underlying $163.81 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 11, 2026 · 5 days to expiry · 154 contracts · mixed daily-bar sessions · Aug 4, 2026–Sep 4, 2026; 57 unknown
Put / call OI
4.12
Put-heavy positioning
Open interest
11,243
as of Sep 3, 2026
Volume
dated and unknown daily-bar sessions
Max pain
$162.00
$1.81 below spot
ATM implied vol
28.7%
market's expected move

Open interest by strike · near the money

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator
OI Vol IV Δ Bid Ask Last Strike Last Bid Ask Δ IV Vol OI
$78.50 $79.25 $0.03 $0.00 $0.22 4
$72.55 $74.60 $0.00 $0.43
$66.85 $70.65 $0.00 $0.88
$62.55 $64.55 $0.00 $0.51
$57.55 $59.85 $0.00 $1.06
$52.55 $54.55 $0.00 $1.20
$46.90 $50.55 $0.00 $0.96
$42.55 $44.85 $0.06 $0.00 $1.75 2 3
$37.60 $39.45 $0.00 $0.56
96.4% 0.974 $32.60 $35.60 $0.01 $0.00 $0.31 7 21
9 4 $27.55 $29.60 $28.98 $0.22 $0.00 $0.16 1 212
1 1 $26.55 $28.60 $23.40 $0.24 $0.00 $0.16 1 2
$25.55 $27.65 $0.67 $0.00 $0.17 1 2
$24.55 $26.65 $0.11 $0.00 $0.17 2 3
3 3 $23.55 $25.85 $18.30 $0.47 $0.00 $0.17 1 2
9 4 $22.75 $24.50 $23.97 $0.06 $0.00 $0.13 2 115
$20.90 $24.10 $0.57 $0.00 $0.17 1 3
1 1 $20.60 $22.55 $21.97 $0.15 $0.00 $0.18 1 3
$19.60 $21.80 $0.18 $0.00 $0.18 5 5
1 1 $18.60 $20.60 $9.40 $0.04 $0.00 $0.18 42 24
6 1 $18.20 $19.20 $18.65 $0.04 $0.00 $0.15 2 59
$16.60 $18.80 $0.24 $0.00 $0.20 1 4
$15.45 $19.15 $0.38 $0.00 $0.20 2 10
2 2 $16.35 $17.40 $13.75 $0.03 $0.00 $0.15 1 8
$15.10 $17.35 $0.29 $0.00 $0.21 7 8
2 2 $14.60 $16.65 $11.04 $0.09 $0.00 $0.22 5 9
$14.45 $15.70 $0.05 $0.02 $0.09 -0.019 37.5% 2 31
4 1 $14.50 $15.20 $11.29 $0.05 $0.00 $0.26 3 26
$13.10 $15.15 $0.09 $0.00 $0.18 12 14
59 1 $12.75 $14.20 $12.90 $0.06 $0.00 $0.10 3 74
24 23 $11.65 $13.85 $14.00 $0.10 $0.00 $0.28 7 26
2 1 $11.35 $12.25 $8.13 $0.08 $0.00 $0.36 36 803
$10.65 $12.05 $0.10 $0.06 $0.18 -0.042 33% 5 8
15 2 $10.55 $11.25 $15.50 $0.10 $0.08 $0.18 -0.046 32.3% 39 599
32 15 $9.45 $10.30 $15.40 $0.15 $0.01 $0.16 -0.037 27.4% 38 1.5k
83 25 26.9% 0.949 $8.55 $9.50 $8.74 $0.22 $0.19 $0.23 -0.073 30.4% 1.9k 1.9k
9 29 $7.15 $8.45 $7.62 $0.28 $0.00 $0.72 99 374
4 4 21.9% 0.939 $5.95 $8.10 $11.51 $0.36 $0.35 $0.44 -0.125 29.7% 93 371
5 21.5% 0.928 $6.05 $7.05 $6.90 $0.50 $0.31 $0.55 -0.137 29% 2 71
17 1 26.6% 0.863 $5.95 $6.65 $5.55 $0.50 $0.35 $0.65 -0.156 28.8% 10 93
34 1 27.2% 0.813 $4.95 $6.05 $5.52 $0.64 $0.58 $0.80 -0.2 28.9% 15 915
95 1.1k 25.3% 0.777 $4.25 $4.95 $4.74 $0.86 $0.82 $0.92 -0.245 28% 239 439
190 30 28.2% 0.696 $3.90 $4.25 $3.88 $1.20 $0.89 $1.34 -0.299 27.5% 35 37
129 13 33.9% 0.615 $3.10 $4.65 $3.20 $1.66 $1.18 $1.82 -0.365 28% 2.8k 1.1k
51 11 29.2% 0.598 $2.96 $3.45 $3.10 $1.70 $1.60 $1.96 -0.401 29% 30 7
46 39 27.6% 0.569 $2.32 $3.25 $2.71 $2.02 $1.30 $2.40 -0.43 27.2% 1.8k 31
237 1.7k 29.4% 0.502 $2.03 $2.80 $2.26 $2.47 $2.05 $2.73 -0.499 28% 18 9
158 139 26.9% 0.431 $1.29 $2.23 $1.80 $2.94 $2.57 $3.20 -0.568 27.3% 17 45
39 23 27.9% 0.368 $1.25 $1.66 $1.43 $3.81 $3.40 $3.85 -0.627 28.9% 3 16
22 19 28.3% 0.309 $0.95 $1.36 $1.02 $3.85 $3.95 $4.55 -0.69 28.3% 2 9
12 8 23.4% 0.24 $0.39 $0.98 $0.89 $4.75 $4.20 $5.00 -0.72 28.2% 57 1
205 50 25.2% 0.227 $0.52 $0.85 $0.84 $5.38 $4.70 $5.20 -0.749 27.9% 1 1
106 10 27.6% 0.199 $0.46 $0.80 $0.56 $5.10 $5.40 $6.40 -0.777 30.6% 1 1
121 1.8k 30% 0.177 $0.16 $1.02 $0.45 $5.80 $6.10 $6.95 -0.85 27.1% 1 1
17 13 30.3% 0.142 $0.31 $0.60 $0.35 $6.90 $8.95 -0.804 37.5%
41 1.5k 28% 0.093 $0.03 $0.47 $0.26 $8.00 $9.45 -0.84 36.9%
12 10 $0.00 $0.53 $0.45 $8.15 $10.15 -0.855 36.8%
11 15 27.8% 0.067 $0.01 $0.33 $0.10 $8.75 $10.60 -0.856 38.7%
218 4 $0.00 $0.41 $0.11 $10.00 $10.95 -0.893 36.8%
56 25 33.3% 0.065 $0.05 $0.34 $0.08 $11.00 $10.90 $12.85 -0.847 48.5% 1
15 1 $0.00 $0.22 $0.14 $11.65 $13.30 -0.903 41.8%
6 5 $0.00 $0.20 $0.14 $12.40 $14.40 -0.919 42%
15 15 $0.00 $0.19 $0.13 $13.45 $15.75 -0.895 50.1%
20 20 $0.00 $0.19 $0.12 $14.70 $16.00 -0.934 44.8%
32 20 $0.00 $0.18 $0.10 $15.35 $17.85 -0.902 55%
10 10 $0.00 $0.18 $0.79 $16.20 $18.80 -0.918 54.4%
10 5 $0.00 $0.12 $0.12 $19.05 $17.75 $19.40 -0.911 58.9% 3 3
$0.00 $0.17 $17.95 $20.85 -0.935 55.4%
$0.00 $0.17 $19.30 $21.85 -0.916 63.5%
7 7 $0.00 $0.10 $0.01 $20.60 $23.15 -0.89 74.1%
$0.00 $0.17 $21.25 $23.75 -0.929 65.4%
$0.00 $0.17 $22.45 $24.80 -0.918 71.7%
$0.00 $0.16 $22.35 $25.30 -0.953 61.4%
$0.00 $0.16 $23.45 $25.80 -0.919 73.9%
$0.00 $0.16 $25.65 $27.15 -0.946 69.7%
$0.00 $0.36 $30.05 $32.75 -0.951 79.4%
$0.00 $0.11 $34.90 $38.15 -0.944 94.3%
About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Aug 4, 2026–Sep 4, 2026; 57 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. The 25 strikes around the money are shown by default — switch to "All 77" for the wings. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.