➀ Nomura Holdings Inc. warns that the biggest stock rally in China in 16 years could turn into a bust due to a weaker economy than before the pandemic; ➁ Economists predict a stock market crash similar to 2015, with a higher probability than optimistic scenarios; ➂ The Shanghai Composite Index doubled since September 2014, followed by a 40% drop in about two months, but authorities now have more tools to support stocks.