Oct 1 (Reuters) - Canadian stocks reversed course to move lower on Tuesday as weak factory readings out of the United States rekindled fears of a global slowdown.
* After opening up 0.2%, the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was down 39.26 points, or 0.24%, at 16,619.37 an hour after open.
* The declines came as data showed manufacturing sector in the world's largest economy contracted in September to its weakest level in more than a decade as business conditions deteriorated further amid U.S.-China trade tensions. Canadian data was mixed, with a reading on growth showing that the economy was unexpectedly unchanged in July, while manufacturing activity expanded in September at the fastest pace in seven months. The underwhelming set of data hit heavyweight energy stocks .SPTTEN even as oil prices jumped on reports that output from the world's largest oil producers fell during the third quarter. O/R
* Materials index .GSPTTMT gained about 1% as gold prices jumped in the wake of the data. Miners such as Detour Gold Corp DGC.TO and SilverCorp Metal SVM.TO were among the top gainers, advancing more than 4%.
* SNC-Lavalin Group Inc SNC.TO and Hudbay Minerals Inc HBM.TO , down 5.7%, topped declines.
* The most heavily traded shares by volume were Aurora Cannabis Inc ACB.TO , Toronto-Dominion Bank TD.TO and Kinross Gold Corp K.TO .
* The TSX posted 9 new 52-week highs and 5 new lows.
* Across all Canadian issues there were 15 new 52-week highs and 21 new lows, with total volume of 69.92 million shares.
* On the TSX, 85 issues were higher, while 143 issues declined for a 1.68-to-1 ratio to the downside, with 42.33 million shares traded.