Expand All 6110. Trading Otherwise than on an Exchange 6120. Trading Halts 6121. Trading Halts Due to Extraordinary Market Volatility 6130. Transactions Related to Initial Public Offerings 6140. Other Trading Practices 6150. Obligation to Provide Information 6160. Multiple MPIDs for Trade Reporting Facility Participants 6170. Multiple MPIDs for Alternative Display Facility Participants 6180. Transaction Reporting 6181. Timely Transaction Reporting 6182. Trade Reporting of Short Sales 6183. Exemption from Trade Reporting Obligation for Certain Alternative Trading Systems 6184. Transactions in Exchange-Traded Managed Fund Shares ("NextShares") 6190. Compliance with Regulation NMS Plan to Address Extraordinary Market Volatility 6191. Compliance with Regulation NMS Plan to Implement a Tick Size Pilot Program Book traversal links for 6100. QUOTING AND TRADING IN NMS STOCKS ‹ 6000. QUOTATION, ORDER, AND TRANSACTION REPORTING FACILITIES Up 6110. Trading Otherwise than on an Exchange ›