Trade at Cash Open (TACO) and TACO+

Capture the certainty of the open, several hours or several days ahead

Take advantage of a mechanism to better manage risk around the cash index open: Trade at Cash Open, or TACO.

TACO allows you to execute a basis trade on the E-mini S&P 500, Nasdaq-100, and Russell 2000 futures relative to the day’s official cash index opening level – before the market open.

With TACO+ now available on E-mini S&P 500 futures, add more lead time to capture the certainty of the cash open days instead of hours ahead. Negate the wait to manage risk around an upcoming cash open index value on a set date (e.g., expiration day).

Now live: TACO Friday trading sessions

To provide market participants greater flexibility in hedging Monday market-on-open orders, the TACO functionality has now been expanded to include Friday trading sessions on Globex.

How it Works

  • Trade at Cash Open (TACO) and TACO+ use the same quoting convention as BTIC, allowing you to execute a basis trade on the associated futures relative to the day’s official cash index opening level, ahead of the market’s opening auction
  • Just like BTIC trades, the basis price can be positive or negative, depending on market conditions
  • For all TACO transactions, once the official opening index level is published, the associated futures are cleared at a price equal to the opening cash index level, plus the agreed upon basis.

About TACO and TACO+

Understanding TACO

Introduction to BTIC+ & TACO+

BTIC+ Trading Examples

Benefits and Applications

Available for ES, NQ, and RTY* futures via a central limit order book on CME Globex and block trades

Better hedge market-on-open (MOO) trade exposures

Easily manage a.m.-expiring options deltas, hours or days in advance

Trade at a price directly derived from the official cash index open price without slippage

Contract Specifications

Ticker Symbols

Underlying Indices Ticker Symbols
S&P 500 Index <ESA Index> ESQ
Nasdaq-100 <NQA Index> NQQ
Russell 2000 <RTYA Index> RTQ

Minimum Price Fluctuation (Tick Size)


Trading Hours

10:00 a.m. CT previous day to 8:30 AM CT
For each trade day, trading starts at 10:00 a.m. CT the previous day.

Minimum Block Threshold

500 contracts for ESQ and NQQ

40 contracts for RTQ

Listed Contracts

Five concurrent listed contracts

Underlying Index

S&P 500 Index <ESA Index>

Minimum Price Fluctuation

0.05= $2.50

Trading Hours

Sunday – Friday 6:00 p.m. - 5:00 p.m. ET (5:00 p.m. - 4:00 p.m. CT)

Listed Contracts

3rd Friday of 3 consecutive months

Minimum Block Threshold

500 contracts

Ticker Symbols

Trading Code



CME Direct

Contact Us

*TACO will be available for E-mini Nasdaq-100 and E-mini Russell 2000 futures starting March 23, 2020.