Strike Price Codes for Stock and Index Options
| Strike | Strike | Strike | |
| A | 5 | 105 | 205 |
| B | 10 | 110 | 210 |
| C | 15 | 115 | 215 |
| D | 20 | 120 | 220 |
| E | 25 | 125 | 225 |
| F | 30 | 130 | 230 |
| G | 35 | 135 | 235 |
| H | 40 | 140 | 240 |
| I | 45 | 145 | 245 |
| J | 50 | 150 | 250 |
| K | 55 | 155 | 255 |
| L | 60 | 160 | 260 |
| M | 65 | 165 | 265 |
| N | 70 | 170 | 270 |
| O | 75 | 175 | 275 |
| P | 80 | 180 | 280 |
| Q | 85 | 185 | 285 |
| R | 90 | 190 | 290 |
| S | 95 | 195 | 295 |
| T | 100 | 200 | 300 |
| U | 7 ½ | 37 ½ | |
| V | 12 ½ | 42 ½ | |
| X | 17 ½ | 52 ½ | |
| Y | 27 ½ | 57 ½ | |
| Z | 32 ½ | 62 ½ |