1752 est dow jonescanadian stocks edge lower with the benchmark sptsx composite index down 4546 points or 02 to 2067954 and the bluechip sptsx 60 index down 321 points or 03 to 124566 shares of herouxdevtek fall 11 to c1381 after the aerospace company said 3q earnings missed expectations as delivery costs jumped kathrynhardisonwsjcom