C1 Unit/Product Distribution
| Unit | C1 Symbol Range | C1 Exceptions |
|---|---|---|
| 1 | A - AIPA~ | |
| 2 | AIPB - AO~ | |
| 3 | AP - AVGO~ | |
| 4 | AVGP - BOIL~ | |
| 5 | BOIM - CMPR~ | Excludes CBTX, CBTXW |
| 6 | CMPS - CSIQ~ | |
| 7 | CSIR - DJTA~ | |
| 8 | DJTB - FARO~ | Excludes DJX, DJXW |
| 9 | FARP - GLC~ | |
| 10 | GLD - HAYW~ | |
| 11 | HAYX - IYWA~ | Excludes IWM |
| 12 | IYWB - LMTA~ | |
| 13 | LMTB - MES~ | Excludes MBTX, MBTXW |
| 14 | MET - MRM~ | Excludes MGTN, MGTNW |
| 15 | MRN - MSTR~ | Excludes MRTBW**, MRUT |
| 16 | MSTS - NKEA~ | Excludes NANOS |
| 17 | NKEB - PDC~ | Excludes NVDA, OEX |
| 18 | PDD - RDDS~ | Excludes QQQ |
| 19 | RDDT - SEAA~ | Excludes RLG, RLV, RUI, RUT/RUTW |
| 20 | SEAB - SMHA~ | Excludes SIXB, SIXC, SIXE, SIXI, SIXM, SIXR, SIXRE, SIXT, SIXU, SIXV, SIXY |
| 21 | SMHB - TEQ~ | Excludes SPEQX, SPESG, SPX, SPXO*, SPXW, SPY |
| 22 | TER - TTC~ | Excludes TSLA |
| 23 | TTD - VB~ | Excludes UKXM |
| 24 | VC - WYNN~ | Excludes VIX, VIXW |
| 25 | WYNO - Z~ | Excludes XEO, XSP, XSPBW |
| 26 | NVDA | |
| 27 | TSLA | |
| 28 | QQQ | |
| 29 | IWM | |
| 30 | SPY | |
| 31 | CBTX, CBTXW, DJX, DJXW, MBTX, MBTXW, MGTN, MGTNW, MRTBW**, MRUT, NDX, OEX, RLG, RLV, RUI, RUT, RUTW, SIXB, SIXC, SIXE, SIXI, SIXM, SIXR, SIXRE, SIXT, SIXU, SIXV, SIXY, SPEQX, SPESG, UKXM, XEO, XND | |
| 32 | NANOS, VIX, VIXW, XSP, XSPBW | |
| 33 | SPX, SPXO* | |
| 34 | SPXW | |
| 35 | SPX/SPXW, Cross Product Spreads |
Note - Cboe reserves the right to add units and/or change symbol distribution with 48 hours of notice and no migration period. Notice will be given that the distribution will change on a certain date. Care should be taken to support mappings in these tables via software configuration.
*Effective 11/09/26
**Effective 10/26/26