Toronto Stock Exchange, TSX Venture Exchange, Montreal Exchange, TMX Select and Alpha will be closed on Monday, May 19, 2014 for the Victoria Day holiday, TMX Group Ltd. (TSX:X) said Tuesday.

NGX will remain open for regular trading.

The exchanges will re-open for regular trading on Tuesday, May 20.

TMX Group’s key subsidiaries operate cash and derivative markets and clearinghouses for multiple asset classes including equities, fixed income and energy.