RE:It could be that HamedSadieLadyCO wrote: asked to be delisted. Didnt like they way WELL is being treated...
It's not really a choice. The S&P/TSX composite index includes approximately the 250 biggest market cap companies listed on the TSX (from the 1 500 total listed companies). It is exclusively based on market cap of the company. I believe they change the index every quarter to reflect changes in market caps.
So, if you are the 245th biggest market cap on the TSX (out of 1 500 companies), you would be in the index. Then, if three months later, you are the 255th biggest market cap on the TSX, then you would get removed from the index.
When added or removed from the index, it can add temporary buy/sell pressure as the fund managers that mimic the "index" (they carry the stocks listed on the index) will have to make adjustments.