MIAX Swaps Index Name for Options Trading Clarity
Published Date: 8/8/2025
Notice
Summary
Miami International Securities Exchange (MIAX) is updating the name of an index used for trading options from “Bloomberg US Large Cap Price Return Index” to “Bloomberg 500 Index.” This change affects traders and investors using MIAX and takes effect immediately, with no extra costs involved. It’s a simple name update to keep things current and clear!
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
Bloomberg Index Name Updated on MIAX
MIAX updated the index name from "Bloomberg US Large Cap Price Return Index" to "Bloomberg 500 Index" in a filing made on July 21, 2025. The change is name-only: MIAX says there will be no change to initial or maintenance listing criteria, expiration months, settlement or exercise style, or to how index values are disseminated (index values began being published on OPRA and MIAX feeds on April 16, 2025). MIAX also states there are no extra costs and it has not yet listed options on this index.
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