(a) Provides advice to members on the interpretation and implementation of trading rules.

(b) Configures the Exchange parameters and enforces controls.

(c) Manages the daily trading schedule.

(d) Monitors price movements and reviews market activity.

(e) Reviews market imbalances 'At the Open', (BATS automatically updates all imbalances).

(f) Provides information to investigative and regulatory agencies as required.

(g) Executes orders on behalf of the Exchange (corrects errors i.e. cancelled trades).

(h) Controls trading activity (i.e. half suspends, reinstates a symbol for trading).

(i) Has access to current and historical market information, including private broker information, such as undisclosed volumes, client account reference, IDS, etc.

(j) Enters and completes trades that take place outside the regular operating hours on behalf of members of the Exchange (i.e. to enter late trade).

(k) Changes the attributes of any of the trades that have already occurred, including the time stamp (trade correction).

(l) Corrects any errors made by traders when they enter a trade. A trade allows them to rectify their mistake. The Market Controller, when reinstating the buy or sell orders or both when cancelling a trade, can reinstate the orders to the original time stamp.

(m) Sends bulletins to broadcast information to traders, other stock markets and various data feeds (i.e. Reuters).

(n) Determines the state of a symbol independently from the rest of the securities listed on the Exchange (e.g., if symbol XYZ is halted by the Market Controller, the remaining symbols in that market are nor effected).

(o) Halts, suspends, or delays trading of a symbol in one or more of the markets that the symbol trades in (e.g., symbol XYZ can be halted in the odd lot market, but allowed to trade in the negotiated deals market if the Market Controller allows only half Odd Lot Trading).

(p) Uses the market state function in exceptional circumstances to manually control the state of a specific market during the trading day (e.g. the Market Controller can halt the trading in the Odd Lot Market).

(q) Sets the current state of the entire Exchange. This can be set Pre-Opening suspended or closed.

(r) Suspends/resumes any trader groups of traders or houses.

(s) Sets the state of tightly coupling with the CDS to ON/OFF.

(t) Cancels the orders in a frozen trade or allows the trade to continue.

(u) When the freeze parameters are changed in the database, the Market Controller can reload the parameters to take effect immediately.