A subset of options on futures have truncated strike prices in tag 55-Symbol of the market data Security Definition message. CME Group strongly encourages clients to use tag 202-StrikePrice to determine the full strike price.
- CME
- SR3 - Options on Three-Month SOFR Futures
- S0 - One-Year Mid-Curve Options on Three-Month SOFR Futures
- S2 - Two-Year Mid-Curve Options on Three-Month SOFR Futures
- SR1 - Options on One-Month SOFR Futures
- S3 - Three-Year Mid-Curve Options on Three-Month SOFR Futures
EJ - Options on Euroyen Futures
- BTC - Options on Bitcoin Futures
- CBOT
- OZQ - Options on 30 Day Federal Funds Futures
- ZQ6 - One-Year Mid-Curve options on 30 Day Federal Funds Futures
- ZQ1 - Two-Year Mid-Curve options on 30 Day Federal Funds Futures
- OZT - Options on 2-Year T-Note Futures
- Please note: the strike price for OZT options is also truncated in tag 202-StrikePrice. Clients must determine the full strike price by postpending "5" when the published price ends in the numbers "2" or "7"
- WT1-WT5 - Weekly Wednesday Options on 2-Year T-Note Futures
- (ZT1 – ZT5) - Weekly options on 2-Year T-Note Futures
- OZF - Options on 5-Year T-Note Futures
- (ZF1 – ZF5) - Weekly options on 5-Year T-Note Futures
If using tag 55-Symbol to determine the strike price, the following rules apply:
- CME products:
- If strike ends in "2" or "7", postpend "5"
- CBOT products
- If strike ends in "2" or "7", postpend "5"
- If strike ends in "1" or "6", postpend "25"
- If strike ends in "3" or "8", postpend "75"