May 4 (Reuters) - Canada's main stock index edged higher

on Tuesday, supported by gains in mining stocks. But advances

were capped by a slump in Shopify ( SHOP ) shares after a muted

forecast, with investors also weighing renewed Middle East

tensions.

At 9:33 a.m. ET, the Toronto Stock Exchange's S&P/TSX

composite index was up 0.1% at 33,701.63 points.

(Reporting by Tharuniyaa Lakshmi in Bengaluru; Editing by

Joyjeet Das)