Nike has shown some gains in North America, its largest market, amid its turnaround, but the strength was offset by weakness in China.

Nike has shown some gains in North America, its largest market, amid its turnaround, but the strength was offset by weakness in China.

It's hard for the market to have faith in Nike when its guidance continues to fall short of expectations.

Nike warned that its turnaround is taking longer than it expected, leading three Wall Street banks to downgrade the stock as investors lose patience.