You’ve heard every reason why China has lost its mojo. What if the conventional wisdom is completely wrong?

David Riedel of Riedel Research Group thinks that's the case.

"I think it’s very dangerous to think about shorting the economies that are the healthiest in the world and that have the biggest reserves in the world," he says on CNBC's Fast Money Halftime Report.

"If you bet against China you’re betting against a system that has delivered a lot of value of the past 30 years."

Riedel says get long - add to positions, and do it now or miss the next bull.

Here's why.

“We’ve seen a huge upswing in the MNI China consumer sentiment index which we think is the best gauge of consumer sentiment on the ground in China,” he explains.