China's stock market is looking hot once again.
The Shanghai composite surged nearly 6 percent Thursday, rebounding from year-to-date lows and seeing its biggest one-day gain in six years. And as far as one trader is concerned, the rally could continue over the several weeks.
"I think we're poised for an even bigger rebound here," technical analyst and options expert Andrew Keene said Thursday on CNBC's "Trading Nation."
Harsh selling in the past month has sent the world's second-largest stock market tumbling, with the Shanghai composite and FXI falling a respective 28 and 16 percent. But Keene notes the charts are now testing key support.