The S&P/TSX Composite Index is the benchmark Canadian index, representing roughly 70% of the total market capitalization on the Toronto Stock Exchange with about 250 companies included in it. The Toronto Stock Exchange is made up of over 1,500 companies. It replaces the earlier TSE 300 index. On October 15, 2021 the S&P/TSX Composite Index reached an all-time closing high of 20,928.10. The intraday record high was also made on October 15, 2021 at 20,969.36. Wikipedia