Emerging market stocks head into the second half of 2017 following their best string of monthly gains since 1993 as strength in the U.S. equities, economic growth in China and better-than-expected earnings boosted appetite.

While there are some concerns about growth in the technology sector in the second half, valuations haven’t reached a peak, said Jingyi Pan, a market strategist at IG Asia Pte in Singapore.

Second-quarter earnings results could be the key to whether stocks extend gains in the next six months, she said.