The stellar rally in global equity markets appears to be far from over. Still, some market watchers say they are starting to spot something that they haven't seen for a while: sellers moving back in.
Fueled by monetary stimulus from major central banks, stock markets in the U.S., Europe and Asia have enjoyed seven months of strong gains, with the Dow Jones Industrial Average and S&P 500 setting new record highs overnight.
Analysts say that although the trend remains intact for now, signs of selling in recent days suggest some caution is starting to emerge.
"We are starting to see a little bit more of two-sided type trade, we see some sell-side participants and today [Wednesday] was a good example of that, whereas before trade was so heavily weighted towards the buy-side," Ben Lichtenstein, president of Tradersaudio.com, told CNBC Asia's "Squawk Box" in response to a question about whether cracks in the market rally are starting to show.