The quick recovery from what could be serious scares shows that traders are an optimistic bunch–and it’s hopefully a good sign for the rally that is now into its third year.

China’s growing clout in the artificial intelligence space has sparked a wave of optimism toward the nation’s tech shares, with a gauge entering a bull market and brokers issuing upbeat calls.

As China's tech sector stages a strong comeback, investors are increasingly looking at ETFs as a way to gain exposure to this space.