The Shanghai Composite Index (China's main stock index) just briefly hit 4,000 for the first time since 2008, after a massive climb in the last 12 months.
A year ago the index was hovering barely above 2,000 this time last year. It's exploded despite China's property market slowing down
Here's how it looks:
Investing.com, Business Insider
The surge has coincided with China's property market stalling - and domestic investors moving into shares rather than housing.
But that brings its own problems. According to recent research, 6% of the newest stock market investors in China can't read.
Here's what the Shanghai Composite looks like over a longer time-frame. It's easy to see what happened when the financial crisis hit.
Investing.com
So there's still a long to go to get to those previous levels.