April 24 (Bloomberg) — Canadian investors are pulling money out of exchange-traded funds for a second year as concern grows that a rally in energy and mining that helped drive equities to the best performance among the world's largest markets has run its course.

So far in 2014, investors have withdrawn $682.5 million from exchange-traded funds tracking Canadian shares, following an outflow of $820.8 million last year, according to data compiled by Bloomberg. The benchmark Standard & Poor's/TSX Composite Index is in its 10th month of gains, the longest winning streak since 1983, and has soared 20 percent in the past year. The gauge rose 0.2 percent to 14,557.27 at 10:55 a.m. in Toronto.

The latest ETF selloff comes as a rally in gold and base- metals companies has begun to lag in favor of energy producers. Mining stocks, which raced to a 16 percent gain in the first two months of the year, have slumped by half that rate since reaching a high in March amid a decline in gold prices. Oil and gas companies are off to the best start to the year since 2006.