An article relating to this blog post on Finextra:
Glitch knocks out TSX
Trading on the Toronto Stock Exchange and the small-cap TSX Venture Exchange is expected to resume Thursday morning after a technical glitch with data feeds shut both down for the whole of Wednesday.
Quite often when an exchange has to close due to technical problems, the detail of what exactly happened is kept hushed up (e.g. LSE TradElect glitch in September). But TMX CEO Thomas Kloet has been
quite candid with The Globe and Mail about what went wrong with their data feeds this week.
Apparently the cause was a firmware problem on the feed server's processors. This kind of thing can happen, and can't be planned for. But what can be controlled and planned for is how the switchover to a back-up system is handled. In this case, it didn't
synch properly, and market participants will quite rightly be calling for a detailed review of all the market operator's business continuity plans.