XBI option chain
Strikes around the forward, as they were quoted at the close
Data as of 9 November 2026 (end of day)
2026-11-13(4 days)ATM 39.29%±6.47skew +2.55
| Calls | Strike | Puts | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Open int | Bid | Ask | IV | IV | Bid | Ask | Open int | Volume | |
| 1 | 71 | $7.35 | $9.55 | — | $149.00 | — | — | — | — | — |
| 2 | 2 | $6.80 | $9.10 | — | $149.50 | — | — | — | — | — |
| 36 | 206 | $7.40 | $8.55 | — | $150.00 | 45.91% | $0.50 | $0.73 | 131 | 118 |
| 88 | 106 | $6.60 | $7.70 | — | $151.00 | 43.21% | $0.52 | $0.84 | 49 | 128 |
| 15 | 26 | $4.95 | $7.10 | — | $152.00 | 42.45% | $0.74 | $0.96 | 71 | 43 |
| 11 | 73 | $5.40 | $6.05 | — | $152.50 | 44.66% | $0.84 | $1.32 | 17 | 38 |
| 16 | 8 | $5.15 | $6.15 | — | $153.00 | 41.57% | $0.86 | $1.24 | 192 | 143 |
| 46 | 48 | $4.45 | $4.85 | — | $154.00 | 41.13% | $1.20 | $1.43 | 127 | 74 |
| 66 | 368 | $3.75 | $4.20 | — | $155.00 | 40.53% | $1.51 | $1.73 | 96 | 1 |
| 204 | 91 | $3.05 | $3.60 | — | $156.00 | 40.90% | $1.87 | $2.21 | 129 | 7 |
| 107 | 190 | $2.55 | $3.15 | — | $157.00 | 40.05% | $2.32 | $2.56 | 62 | 27 |
| 82 | 165 | $2.28 | $2.77 | 39.29% | $157.50 | — | $2.52 | $2.76 | 31 | 13 |
| 125 | 354 | $2.05 | $2.61 | 39.89% | $158.00 | — | $2.83 | $3.05 | 6 | 68 |
| 50 | 148 | $1.64 | $2.09 | 39.26% | $159.00 | — | $3.40 | $3.70 | 6 | 0 |
| 352 | 775 | $1.30 | $1.66 | 38.93% | $160.00 | — | $4.05 | $4.25 | 65 | 38 |
| 21 | 107 | $1.00 | $1.22 | 37.84% | $161.00 | — | $4.75 | $5.10 | 12 | 1 |
| 92 | 174 | $0.72 | $1.12 | 39.03% | $162.00 | — | $5.00 | $5.80 | 3 | 14 |
| 79 | 45 | $0.65 | $1.06 | 39.96% | $162.50 | — | $5.20 | $7.40 | 4 | 22 |
| — | — | — | — | — | $163.00 | — | $5.55 | $8.05 | 17 | 8 |
| 43 | 103 | $0.42 | $0.68 | 39.31% | $164.00 | — | $6.50 | $8.80 | 10 | 10 |
| 19 | 216 | $0.31 | $0.44 | 38.19% | $165.00 | — | $7.25 | $9.60 | 14 | 12 |
Forward $157.38. The 25-delta put carries +2.55 volatility points over the 25-delta call.
2026-11-20(11 days)ATM 35.15%±9.61skew +2.15
| Calls | Strike | Puts | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Open int | Bid | Ask | IV | IV | Bid | Ask | Open int | Volume | |
| 0 | — | $8.35 | $10.75 | — | $148.50 | 39.52% | $0.95 | $1.35 | — | 1 |
| 1 | 114 | $7.95 | $10.30 | — | $149.00 | 37.77% | $0.87 | $1.38 | 709 | 2 |
| 0 | — | $7.55 | $9.90 | — | $149.50 | — | — | — | — | — |
| 12 | 494 | $8.40 | $9.50 | — | $150.00 | 38.33% | $1.22 | $1.57 | 1,701 | 2,173 |
| 1 | 56 | $7.45 | $8.70 | — | $151.00 | 37.64% | $1.43 | $1.76 | 890 | 11 |
| 1 | 93 | $7.05 | $7.60 | — | $152.00 | 36.83% | $1.53 | $2.09 | 483 | 1,004 |
| 3 | 310 | $6.65 | $7.35 | — | $152.50 | 40.69% | $1.79 | $2.88 | 312 | 0 |
| 5 | 958 | $5.85 | $7.20 | — | $153.00 | 37.24% | $2.04 | $2.30 | 1,384 | 2 |
| 2 | 132 | $5.75 | $6.25 | — | $154.00 | 37.44% | $2.40 | $2.70 | 185 | 6 |
| 8 | 903 | $5.05 | $5.85 | — | $155.00 | 36.45% | $2.64 | $3.05 | 599 | 40 |
| 68 | 181 | $4.30 | $5.10 | — | $156.00 | 36.64% | $3.15 | $3.45 | 194 | 1 |
| 25 | 220 | $3.95 | $4.40 | — | $157.00 | 36.41% | $3.65 | $3.85 | 107 | 846 |
| 179 | 237 | $3.45 | $3.60 | 34.88% | $158.00 | — | $4.15 | $4.35 | 104 | 29 |
| 8 | 139 | $3.00 | $3.60 | 36.90% | $159.00 | — | $4.50 | $5.05 | 244 | 2 |
| 586 | 2,224 | $2.41 | $3.10 | 35.59% | $160.00 | — | $4.65 | $5.65 | 128 | 0 |
| 5 | 602 | $2.21 | $2.87 | 37.04% | $161.00 | — | $5.75 | $6.25 | 248 | 39 |
| 0 | 682 | $1.76 | $2.34 | 35.47% | $162.00 | — | $6.05 | $6.85 | 63 | 30 |
| 7 | 738 | $1.58 | $2.05 | 36.08% | $163.00 | — | $7.15 | $7.55 | 9 | 0 |
| 5 | 1,184 | $1.28 | $1.72 | 35.49% | $164.00 | — | $7.55 | $8.50 | 64 | 0 |
| 117 | 5,556 | $1.13 | $1.32 | 34.92% | $165.00 | — | $8.05 | $10.45 | 124 | 0 |
| 5 | 227 | $0.94 | $1.29 | 36.04% | $166.00 | — | $8.90 | $11.20 | 29 | 0 |
Forward $157.43. The 25-delta put carries +2.15 volatility points over the 25-delta call.
2026-11-27(18 days)ATM 33.96%±11.87skew +2.98
| Calls | Strike | Puts | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Open int | Bid | Ask | IV | IV | Bid | Ask | Open int | Volume | |
| 0 | 11 | $8.90 | $11.25 | — | $149.00 | — | — | — | — | — |
| — | — | — | — | — | $149.50 | 36.12% | $1.50 | $2.34 | 1 | 0 |
| 0 | 2 | $8.85 | $10.25 | — | $150.00 | 35.77% | $1.68 | $2.36 | 37 | 2 |
| 0 | 9 | $8.40 | $9.10 | — | $151.00 | 34.56% | $1.80 | $2.55 | 18 | 0 |
| 0 | 10 | $7.65 | $8.65 | — | $152.00 | 35.36% | $2.27 | $2.92 | 10 | 0 |
| 0 | 133 | $6.90 | $8.40 | — | $152.50 | 35.13% | $2.23 | $3.25 | 3 | 0 |
| 2 | 8 | $6.75 | $7.75 | — | $153.00 | 34.38% | $2.45 | $3.20 | 24 | 0 |
| 0 | 21 | $6.50 | $7.15 | — | $154.00 | 37.45% | $2.93 | $4.30 | 15 | 0 |
| 4 | 53 | $5.35 | $6.75 | — | $155.00 | 34.56% | $3.25 | $4.05 | 75 | 1 |
| 0 | 29 | $5.10 | $6.00 | — | $156.00 | 33.47% | $3.55 | $4.35 | 234 | 0 |
| 0 | 121 | $4.70 | $5.45 | — | $157.00 | 35.41% | $4.20 | $5.20 | 9 | 6 |
| 2 | 72 | $4.05 | $5.20 | 33.40% | $157.50 | — | $4.20 | $5.15 | 126 | 0 |
| 0 | 104 | $4.00 | $4.95 | 34.03% | $158.00 | — | $4.45 | $5.25 | 6 | 0 |
| 0 | 10 | $3.70 | $4.35 | 34.02% | $159.00 | — | $5.20 | $6.00 | 106 | 53 |
| 3 | 107 | $3.00 | $4.05 | 33.41% | $160.00 | — | $5.70 | $6.30 | 58 | 9 |
| 1 | 34 | $2.94 | $3.60 | 34.36% | $161.00 | — | $6.00 | $8.15 | 26 | 0 |
| 0 | 6 | $2.48 | $3.20 | 33.79% | $162.00 | — | $7.05 | $7.70 | 2 | 0 |
| 1 | 65 | $2.04 | $3.05 | 32.78% | $162.50 | — | $6.95 | $7.80 | 18 | 0 |
| 3 | 8 | $1.88 | $2.93 | 32.91% | $163.00 | — | $7.30 | $9.70 | 5 | 0 |
| 2 | 17 | $1.87 | $2.46 | 33.31% | $164.00 | — | $8.45 | $9.15 | 9 | 0 |
| 0 | 28 | $1.49 | $2.27 | 33.14% | $165.00 | — | $9.10 | $9.70 | 48 | 0 |
Forward $157.45. The 25-delta put carries +2.98 volatility points over the 25-delta call.
2026-12-04(25 days)ATM 33.63%±13.88skew +2.31
| Calls | Strike | Puts | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Open int | Bid | Ask | IV | IV | Bid | Ask | Open int | Volume | |
| 0 | 1 | $10.80 | $13.35 | — | $147.50 | — | — | — | — | — |
| — | — | — | — | — | $150.00 | 35.19% | $2.18 | $3.05 | 17 | 3 |
| 0 | 1 | $7.60 | $9.60 | — | $152.00 | 36.43% | $2.89 | $4.05 | 8 | 3 |
| 0 | 3 | $7.60 | $9.15 | — | $152.50 | 34.77% | $2.86 | $3.95 | 2 | 0 |
| 0 | 2 | $7.65 | $8.70 | — | $153.00 | 34.47% | $3.05 | $4.05 | 28 | 26 |
| 1 | 0 | $7.30 | $8.20 | — | $154.00 | — | — | — | — | — |
| 7 | 4 | $6.10 | $7.55 | — | $155.00 | 34.93% | $3.95 | $4.95 | 3 | 2 |
| 0 | 2 | $5.85 | $6.95 | — | $156.00 | 34.12% | $4.30 | $5.25 | 3 | 47 |
| — | — | — | — | — | $157.00 | 35.14% | $4.95 | $5.90 | 0 | 24 |
| 0 | 3 | $4.60 | $6.35 | — | $157.50 | — | — | — | — | — |
| 0 | 3 | $4.75 | $5.95 | 33.54% | $158.00 | — | $5.15 | $6.20 | 12 | 3 |
| 0 | 7 | $4.60 | $5.35 | 34.05% | $159.00 | — | $5.95 | $7.60 | 0 | 80 |
| 9 | 20 | $4.25 | $4.90 | 34.23% | $160.00 | — | $6.55 | $7.40 | 10 | 9 |
| 0 | 41 | $3.50 | $4.55 | 33.32% | $161.00 | — | $6.70 | $7.80 | 26 | 26 |
| 1 | 44 | $3.35 | $4.00 | 33.47% | $162.00 | — | — | — | — | — |
| 0 | 11 | $3.25 | $3.90 | 33.96% | $162.50 | — | — | — | — | — |
| 0 | 2 | $2.58 | $3.80 | 32.59% | $163.00 | — | $8.10 | $9.00 | 6 | 13 |
| 0 | 3 | $2.49 | $3.50 | 33.41% | $164.00 | — | $8.55 | $9.90 | 7 | 31 |
| 0 | 13 | $2.46 | $3.15 | 34.14% | $165.00 | — | $9.80 | $10.55 | 0 | 41 |
| 2 | 2 | $1.90 | $2.81 | 32.93% | $166.00 | — | $10.45 | $11.00 | 3 | 0 |
| 0 | 2 | $1.58 | $2.62 | 32.88% | $167.00 | — | $10.80 | $13.25 | 13 | 0 |
Forward $157.67. The 25-delta put carries +2.31 volatility points over the 25-delta call.
2026-12-11(32 days)ATM 34.28%±15.98skew +4.30
| Calls | Strike | Puts | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Open int | Bid | Ask | IV | IV | Bid | Ask | Open int | Volume | |
| — | — | — | — | — | $143.00 | 36.91% | $1.29 | $2.10 | 301 | 1 |
| — | — | — | — | — | $144.00 | 35.93% | $1.41 | $2.16 | 5 | 0 |
| — | — | — | — | — | $145.00 | 36.12% | $1.68 | $2.39 | 5 | 3 |
| — | — | — | — | — | $147.50 | 36.10% | $2.12 | $3.25 | 1 | 0 |
| — | — | — | — | — | $148.00 | 35.50% | $2.28 | $3.20 | 6 | 1 |
| 0 | 2 | $10.95 | $12.15 | — | $149.00 | — | — | — | — | — |
| — | — | — | — | — | $150.00 | 37.13% | $2.88 | $4.40 | 2 | 1 |
| — | — | — | — | — | $151.00 | 35.94% | $3.25 | $4.35 | 12 | 13 |
| 0 | 2 | $8.70 | $10.20 | — | $152.00 | 34.62% | $3.40 | $4.50 | 1 | 2 |
| 0 | 60 | $8.05 | $8.90 | — | $154.00 | — | — | — | — | — |
| 4 | 60 | $6.90 | $8.35 | — | $155.00 | 33.46% | $4.45 | $5.55 | 5 | 0 |
| 0 | 10 | $6.65 | $7.70 | — | $156.00 | — | — | — | — | — |
| 1 | 10 | $6.30 | $7.15 | — | $157.00 | — | — | — | — | — |
| — | — | — | — | — | $158.00 | — | $5.75 | $6.95 | 0 | 10 |
| 0 | 3 | $4.85 | $5.70 | 34.59% | $160.00 | — | $7.15 | $8.45 | 11 | 11 |
| — | — | — | — | — | $164.00 | — | $9.50 | $10.30 | 4 | 0 |
| 2 | 3 | $2.78 | $3.55 | 32.74% | $165.00 | — | — | — | — | — |
| — | — | — | — | — | $166.00 | — | $10.20 | $12.70 | 0 | 10 |
| 0 | 3 | $1.67 | $2.78 | 31.80% | $168.00 | — | — | — | — | — |
| 3 | 0 | $1.78 | $2.21 | 33.18% | $170.00 | — | — | — | — | — |
| 4 | 0 | $0.94 | $1.30 | 32.71% | $175.00 | — | — | — | — | — |
Forward $157.47. The 25-delta put carries +4.30 volatility points over the 25-delta call.
2026-12-18(39 days)ATM 32.39%±16.71skew +2.14
| Calls | Strike | Puts | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Open int | Bid | Ask | IV | IV | Bid | Ask | Open int | Volume | |
| 0 | 88 | $12.05 | $13.50 | — | $148.00 | 34.76% | $2.66 | $3.50 | 6,766 | 150 |
| 12 | 70 | $11.85 | $12.70 | — | $149.00 | 34.22% | $3.00 | $3.60 | 217 | 0 |
| 7 | 3,576 | $11.15 | $12.50 | — | $150.00 | 34.04% | $3.35 | $3.85 | 3,564 | 12 |
| 0 | 220 | $10.05 | $11.30 | — | $151.00 | 35.63% | $3.55 | $4.95 | 71 | 24 |
| 0 | 146 | $9.45 | $10.65 | — | $152.00 | 34.54% | $3.80 | $5.05 | 447 | 8 |
| 3 | 89 | $9.10 | $10.05 | — | $153.00 | 35.44% | $3.90 | $6.10 | 113 | 4 |
| 0 | 343 | $8.70 | $9.40 | — | $154.00 | 36.32% | $4.80 | $6.40 | 98 | 4 |
| 156 | 1,480 | $7.90 | $8.35 | — | $155.00 | 33.69% | $5.10 | $5.95 | 954 | 41 |
| 17 | 728 | $7.30 | $7.95 | — | $156.00 | 33.86% | $5.45 | $6.60 | 97 | 26 |
| 54 | 407 | $6.90 | $7.30 | — | $157.00 | 33.67% | $6.15 | $6.80 | 109 | 23 |
| 24 | 366 | $6.15 | $7.15 | 32.87% | $158.00 | — | $6.40 | $7.25 | 65 | 28 |
| 36 | 477 | $5.75 | $6.40 | 32.32% | $159.00 | — | $6.90 | $7.85 | 54 | 33 |
| 81 | 2,065 | $5.35 | $6.00 | 32.50% | $160.00 | — | $7.70 | $8.15 | 4,137 | 288 |
| 42 | 380 | $5.05 | $5.75 | 33.19% | $161.00 | — | $8.30 | $8.85 | 39 | 67 |
| 47 | 339 | $4.50 | $5.30 | 32.66% | $162.00 | — | $8.35 | $9.80 | 38 | 0 |
| 69 | 352 | $4.35 | $4.90 | 33.14% | $163.00 | — | $9.20 | $10.00 | 0 | 6 |
| 64 | 353 | $3.95 | $4.40 | 32.63% | $164.00 | — | $10.15 | $10.65 | 18 | 11 |
| 115 | 2,721 | $3.40 | $4.15 | 32.25% | $165.00 | — | $10.05 | $11.60 | 2,571 | 1 |
| 40 | 290 | $3.10 | $3.85 | 32.28% | $166.00 | — | — | — | — | — |
| 57 | 448 | $3.00 | $3.45 | 32.48% | $167.00 | — | $12.25 | $13.55 | 37 | 0 |
| 379 | 349 | $2.66 | $3.30 | 32.62% | $168.00 | — | $12.90 | $13.65 | 36 | 0 |
Forward $157.82. The 25-delta put carries +2.14 volatility points over the 25-delta call.
2027-01-15(67 days)ATM 34.11%±23.06skew +0.45
| Calls | Strike | Puts | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Open int | Bid | Ask | IV | IV | Bid | Ask | Open int | Volume | |
| 0 | 62 | $20.70 | $23.10 | — | $138.00 | 34.63% | $1.93 | $2.41 | 354 | 8 |
| 0 | 109 | $19.90 | $22.35 | — | $139.00 | 34.74% | $2.16 | $2.64 | 3,255 | 3,003 |
| 11 | 1,011 | $20.20 | $21.35 | — | $140.00 | 34.33% | $2.25 | $2.85 | 3,369 | 21 |
| 0 | 31 | $18.50 | $20.70 | — | $141.00 | 34.38% | $2.49 | $3.10 | 3,094 | 2 |
| 0 | 97 | $17.55 | $19.90 | — | $142.00 | 34.91% | $2.75 | $3.55 | 183 | 4 |
| 0 | 66 | $16.75 | $19.15 | — | $143.00 | 34.32% | $3.00 | $3.60 | 51 | 5 |
| 0 | 136 | $16.45 | $18.40 | — | $144.00 | 34.17% | $3.25 | $3.85 | 272 | 4 |
| 12 | 238 | $16.30 | $17.55 | — | $145.00 | 33.37% | $3.40 | $3.95 | 178 | 1 |
| 15 | 100 | $15.10 | $16.90 | — | $146.00 | 34.01% | $3.80 | $4.45 | 73 | 0 |
| 0 | 929 | $15.15 | $16.15 | — | $147.00 | 33.66% | $4.00 | $4.75 | 141 | 2 |
| 0 | 203 | $14.40 | $15.55 | — | $148.00 | 33.58% | $4.30 | $5.10 | 133 | 2 |
| 0 | 256 | $12.40 | $14.75 | — | $149.00 | 33.74% | $4.95 | $5.25 | 128 | 2 |
| 6 | 3,116 | $13.15 | $14.10 | — | $150.00 | 33.62% | $5.35 | $5.55 | 4,986 | 31 |
| 1,007 | 2,491 | $10.40 | $10.80 | — | $155.00 | 33.40% | $7.40 | $7.70 | 3,917 | 60 |
| 283 | 3,531 | $7.90 | $8.35 | 34.15% | $160.00 | — | $9.90 | $10.80 | 1,252 | 12 |
| 11 | 4,911 | $5.75 | $6.65 | 34.22% | $165.00 | — | $12.45 | $13.65 | 238 | 0 |
| 131 | 6,179 | $4.25 | $4.55 | 33.25% | $170.00 | — | $15.90 | $16.95 | 179 | 0 |
| 0 | 129 | $3.15 | $3.60 | 33.09% | $174.00 | — | $18.95 | $19.85 | 20 | 0 |
| 40 | 4,718 | $2.80 | $3.45 | 32.93% | $175.00 | — | $19.25 | $21.70 | 53 | 0 |
| 2 | 59 | $2.60 | $3.35 | 33.18% | $176.00 | — | — | — | — | — |
| 0 | 21 | $2.45 | $2.98 | 32.85% | $177.00 | — | $20.75 | $23.30 | 1 | 0 |
Forward $157.76. The 25-delta put carries +0.45 volatility points over the 25-delta call.
2027-03-19(130 days)ATM 33.54%±31.72
| Calls | Strike | Puts | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Open int | Bid | Ask | IV | IV | Bid | Ask | Open int | Volume | |
| 0 | 3 | $17.25 | $19.25 | — | $148.00 | 33.27% | $7.05 | $7.90 | 9,502 | 0 |
| 0 | 1 | $16.55 | $18.60 | — | $149.00 | 33.26% | $7.30 | $8.45 | 1 | 8 |
| 1 | 55 | $15.90 | $18.05 | — | $150.00 | 35.44% | $7.80 | $10.30 | 448 | 0 |
| 0 | 21 | $15.95 | $17.40 | — | $151.00 | 35.19% | $8.10 | $10.70 | 5 | 0 |
| 0 | 25 | $15.55 | $16.95 | — | $152.00 | 35.33% | $8.65 | $11.15 | 75 | 0 |
| 0 | 19 | $13.80 | $16.25 | — | $153.00 | 34.32% | $9.00 | $11.00 | 6 | 1 |
| 1 | 178 | $14.85 | $15.70 | — | $154.00 | 34.26% | $9.30 | $11.60 | 6 | 0 |
| 10 | 61 | $13.00 | $15.15 | — | $155.00 | 33.89% | $9.85 | $11.75 | 112 | 0 |
| 0 | 124 | $12.10 | $14.60 | — | $156.00 | 34.79% | $10.35 | $12.90 | 12 | 0 |
| 0 | 12 | $12.00 | $14.10 | — | $157.00 | 34.50% | $10.75 | $13.30 | 5 | 0 |
| 656 | 4 | $12.30 | $13.55 | — | $158.00 | 34.24% | $11.15 | $13.75 | 80 | 0 |
| 0 | 530 | $10.50 | $13.10 | 32.42% | $159.00 | — | $11.75 | $14.30 | 63 | 0 |
| 1 | 320 | $10.05 | $12.60 | 32.33% | $160.00 | — | $12.05 | $14.60 | 2,076 | 0 |
| 2 | 6 | $10.35 | $12.15 | 33.28% | $161.00 | — | $12.80 | $14.80 | 12 | 0 |
| 0 | 17 | $10.25 | $11.65 | 33.60% | $162.00 | — | $13.20 | $15.90 | 6 | 0 |
| 0 | 14 | $9.15 | $12.00 | 33.68% | $163.00 | — | $13.75 | $16.45 | 2,118 | 0 |
| 0 | 3 | $9.45 | $11.30 | 34.20% | $164.00 | — | $14.05 | $16.90 | 8 | 0 |
| 0 | 71 | $9.20 | $11.05 | 34.56% | $165.00 | — | $15.10 | $17.55 | 11 | 0 |
| 0 | 3 | $7.50 | $10.55 | 32.58% | $166.00 | — | $15.65 | $17.95 | 1 | 0 |
| 0 | 29 | $7.05 | $9.60 | 31.64% | $167.00 | — | $16.15 | $18.30 | 15 | 0 |
| 0 | 6 | $6.70 | $9.30 | 31.70% | $168.00 | — | $16.65 | $19.35 | 1 | 0 |
Forward $158.48. Not enough surviving quotes on both wings to measure the skew here.
How to read this
Calls on the left, puts on the right, the strike between them — the layout every chain uses. Each block is one expiration, and the heading carries its days to expiry, the at-the-money implied volatility, and the one-standard-deviation move that volatility implies over that time.
Only the 21 strikes nearest the forward are stored, which is the part of the board that carries the volume. The shaded side is in the money: below the forward for calls, above it for puts.
Implied volatility is shown on the out-of-the-money side only. An in-the-money option is nearly all intrinsic value quoted on a wide market, so a volatility solved from it would look authoritative and mean very little. The price is still shown, because the price is real; the blank is deliberate.