TORONTO, April 27 (Reuters) - Goldman Sachs is shutting down its Canadian "dark pool" trading operation less than a year after it was launched by the U.S.-based investment bank, according to a notice from an industry regulator.

Goldman launched its "Sigma X" dark pool operation last August. Dark pools platforms allow big players to place and match buy-and-sell orders anonymously to avoid tipping off rivals and moving share prices.

A notice from the Investment Industry Regulatory Organization of Canada, titled "SIGMA X Canada to Cease Operations as a Marketplace", sa id that the service would cease accepting orders as of the close of trading on Friday.

A company spokesman did not immediately return calls.

Sigma-X was one of a handful of alternative trading system in Canada, where equity trading is dominated by the Toronto Stock Exchange, owned by TMX Group. TMX is currently the target of a $3.8 billion takeover bid by a group of 13 Canadian financial institutions.

Portee

Rico..

I'm sure you will sleep better now that these Mother F*ckers are shut down..It will be interesting how many anonymous buys we see this week.