India, April 16 -- Following three sessions of gains, Canadian stocks edged lower on Thursday as investors await the upcoming second round of U.S.-Iran negotiations with cautious optimism amid the ongoing blockade on Iranian ports by the U.S., which has accelerated oil and energy supply concerns.

After opening above yesterday's close, today the benchmark S&P/TSX Composite Index held momentum early in the session but gave ground later to trade below the flatline before settling at 34,052.23, down by 103.76 points (or 0.30%).

Six of the 11 sectors posted gains today, with the real estate sector leading the pack.

The two-week ceasefire on the Middle East war between the U.S., Israel and Iran, announced by U.S. President Donald Trump last we...