Why is ZTO Express stock sliding today?

ZTO Express shares experienced a 4.6% decline on Tuesday, reaching HK$156.5. The main reason behind this drop was Alibaba Group's decision to dispose of a $500 million stake in the company through a discounted block trade executed the previous day. Alibaba sold 25 million ZTO ADRs at $20.02 per share, which was near the lowest price range set for the transaction.

This move represented a 4.5% discount compared to ZTO's Friday closing price, indicating that the major shareholder may have lost confidence in the stock. The substantial discount in the block sale added to the negative market sentiment, suggesting that investors perceived the deal as a reduction in the strategic alignment between Alibaba and ZTO.

While ZTO has an active capital return program, the company's recent share buybacks of 420,600 shares, as of September 18, were relatively small in comparison to the volume of shares that Alibaba placed into the market. Despite this, ZTO shares fell below the 0.4% increase of the Hang Seng index on the same day.