Effective Sunday, May 13, (trade date Monday, May 14), and pending all relevant CFTC regulatory review periods, Basis Trade at Cash Open (TACO) transactions will be permitted for trading on CME Globex and for submission for clearing via CME ClearPort for the E-mini Standard & Poor’s 500 Stock Price Index Futures contract (CME Globex/CME ClearPort Code: ES; TACO Code: ESQ).
For a more detailed explanation of TACO transactions, please reference the CME Globex Notice and Special Executive Report (SER).
TACO Trading and Clearing Hours (Eastern Time) for the E-mini Standard & Poor’s 500 Stock Price Index Futures Contract:
| Calendar Day | Trade Day | Hours |
|---|---|---|
| Sunday | Monday | 6:00 p.m. - Monday 9:30 a.m. |
| Monday - Thursday | Tuesday-Thursday | 11:00 a.m. - 5:00 p.m. and 6:00 p.m. - 9:30 a.m. |
| Friday | Friday | 11:00 a.m. - 5:00 p.m |
Maintenance Period
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| Monday - Thursday | -- | 5:00 p.m. - 6:00 p.m. |
The change will be available for customer testing in New Release on Monday, April 30.