U.S. Options

Change to Exchange Rule 521, Nullification and Adjustment of Options Transactions Including Obvious Errors, for Transactions Being Used to Calculate the Final Settlement Price of a Volatility Index

Removal of Settlement Auction Only (SAO) Orders from Certain Exchange Risk Protections

Implementation of Liquidity Exposure Process (LEP) for Over-Sized Orders in Proprietary Products

Removal of Defined Time Period for Single-Sided Complex Order Auctions

Implementation of Complex Liquidity Exposure Process (cLEP) for Complex Orders and Complex eQuotes

Market for Underlying Security Used for Openings on MIAX Options for the Newly Listed SPIKE Option Classes Effective Tuesday, February 19, 2019

Settlement Auction Only (SAO) Order Type Added for SPIKES

FINRA Arbitration Rule Change Notice: Proposed Rule Change to Expand Time for Non-Parties to Respond to Arbitration Subpoenas and Orders of Appearance of Witnesses or Production of Documents