The Shanghai Index and indicator (a) <i>I</i><sub><i>AM</i></sub> (b) <i>I</i><sub><i>PM</i></sub>.

<p>For both (a) and (b), the two vertical dash lines on the left respectively denote the beginnings of two sharp declines of the Shanghai Index, and the one on the right denotes the start of the financial crisis. The dash lines for <i>I</i><sub><i>AM</i></sub> and <i>I</i><sub><i>PM</i></sub> are the guild lines for the trend of the indicator in corresponding periods.</p>