MIAX Exchange Group - Options Markets - Update: SpaceX Cloud Allocation Multicast Addresses And Symbol Range Changes On MIAX Sapphire Clouds 6 And 7

As previously announced in the June 5, 2026 Alert, the MIAX Options, MIAX Pearl Options, MIAX Emerald Options, and MIAX Sapphire Options Exchanges will list options on SpaceX (symbol SPCX) once they are approved for trading. Below are updates to Cloud allocations for each exchange:

MIAX Options Exchange:

1. Market Data Feed content for SPCX will be disseminated across Cloud 22 (previously Cloud 20) multicast addresses for:
   1. Top of Market (ToM) Feed
   2. Complex Top of Market (cToM) Feed
   3. MIAX Order Feed (MOR)
   4. Administrative Information Subscriber (AIS) Feed
2. MIAX Express Interface (MEI) customers will need to direct their interface activity for options on SPCX to their MEI sessions on Cloud 22 (previously Cloud 20)
3. FIX Order Interface (FOI), Clearing Trade Drop (CTD) and FIX Drop Copy (FXD) customers are not impacted

MIAX Pearl Options and MIAX Emerald Options: 

1. Market Data Feed content for SPCX will be disseminated across Cloud 8 (previously Cloud 10) multicast addresses for:
   1. Top of Market (ToM) Feed
   2. Complex Top of Market (cToM) Feed
   3. MIAX Order Feed (MOR)
   4. Administrative Information Subscriber (AIS) Feed
   5. Pearl Liquidity Feed (PLF)
2. MIAX Express Interface (MEI) and/or MIAX Express Order (MEO) customers will need to direct their interface activity for options on SPCX to their MEI/MEO sessions on Cloud 8 (previously Cloud 10)
3. FIX Order Interface (FOI), Clearing Trade Drop (CTD) and FIX Drop Copy (FXD) customers are not impacted

MIAX Sapphire Options:

1. Market Data Feed content for SPCX will be disseminated across Cloud 7 (previously Cloud 2) multicast addresses for:
   1. Top of Market (ToM) Feed
   2. Complex Top of Market (cToM) Feed
   3. Sapphire Liquidity Feed (SLF)
2. MIAX Express Order (MEO) customers will need to direct their interface activity for options on SPCX to their MEO sessions on Cloud 7 (previously Cloud 2)
3. FIX Order Interface (FOI), Clearing Trade Drop (CTD) and FIX Drop Copy (FXD) customers are not impacted
4. In addition to the allocation of symbol SPCX to Cloud 7, MIAX Sapphire Options will also move symbol range (YALA-ZWS)  from Cloud 7 to Cloud 6.
   1. Effective for trading on Monday, June 15, 2026:
      1. Cloud 6:  T-Z  (with the exception of symbol ZYME)
      2. Cloud 7: ZYME   (and symbol SPCX once options begin trading)

For additional details, please visit MIAX Options Interface Specifications, MIAX Pearl Options Interface Specifications, MIAX Emerald Options Interface Specifications and MIAX Sapphire Options Interface Specifications.

If you have any questions, please contact Trading Operations at TradingOperations@miaxglobal.com or (609) 897-7302.