Markets were mixed on Monday.
While the Shanghai Composite Index jumped 2.2 percent, markets elsewhere were relatively subdued.
The S&P 500 edged up 0.1 percent, with fewer shares changing hands than on any other day in 2016. The STOXX Europe fell 0.3 percent.
Jonathan Corpina, senior managing partner at Meridian Equity Partners, thinks that the market will just "drift around" this week, while Alex Dryden, global market strategist at JP Morgan Asset Management, thinks that "a lot of people still feel very nervous about the recovery".
However, CNBC reported that Jim Cramer thinks stocks are "incredibly undervalued".
In any case, it may at least be time to buy value stocks, with value stocks up for the year while growth stocks are down.