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Joined: Oct 19, 2023 12:22 PM
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Data Questions » S&P 500 Refresh Frequency Oct 19, 2023 03:41 PM (Total replies: 0)

AFAIK, there's two symbols tracking the S&P 500 Cash price: SPX.XO (from CBOE) and SP500.X (from CME Indexes). Both of these refresh every second. Is there any other S&P 500 Cash symbol which refreshes more frequently?

The SP500.X symbol has a Bid and an Ask price, so I kind of expected anything that was tradeable would be refreshed on a tick by tick basis, rather than every second?


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