* TSX up 39.13 points, or 0.25 percent, at 15,513.25
* Six of the TSX's 10 main groups move higher
TORONTO, Sept 27 (Reuters) - Canada's main stock index rose on Wednesday despite a sharp drop in Bombardier Inc after the plane and train maker was hit by a steep U.S. tariff, as heavyweight financial stocks moved higher.
The index was at its highest since June.
Bombardier was last down 11 percent at C$2.02 after opening at its lowest point since December 2016 following the U.S. Commerce Department's decision to slap preliminary anti-subsidy duties on its CSeries jets.
The company also lost out as Siemens AG and Alstom SA agreed to merge their rail operations. Bombardier had also held talks with Siemens, sources have said.
On the positive side, the financials group, which accounts for more than a third of the index's weight, gained 0.6 percent as bond yields broadly rose and Canadian National Railway Co advanced 1.3 percent to C$102.68.
Investors were awaiting a speech by Bank of Canada Governor Stephen Poloz for clues as to how aggressively the bank may tighten rates from here.
At 10:28 a.m. ET (1428 GMT), the Toronto Stock Exchange's S&P/TSX composite index was up 39.13 points, or 0.25 percent, at 15,513.25, with six of its 10 main groups in positive territory.
Tahoe Resources fell 8.5 percent to C$6.45 after it said Guatemala's Supreme Court declined to act on renewing its export credential.
Ski-Doo maker BRP Inc lost 7.5 percent to C$41.79 after announcing a bought deal secondary offering. (Reporting by Alastair Sharp; Editing by Frances Kerry)