Investors start to trickle back

China's A shares, after plunging nearly 60 percent this year, are sparking renewed interest from value investors known for buying low and selling high.

"There's more interest in investing in the A-share market and seeking our advice (again)," Dong Chen, a senior analyst at CITIC China Securities, said. "I believe there are opportunities (to invest) emerging."

According to Kang Hongtao, chief investment consulting officer at Guoyuan Securities, a strong stock rebound is likely in September. But that doesn't mean China's A shares have already hit their lowest point.