HONG KONG — Dalian Wanda Group of China said Thursday that it may privatize its commercial property company in a deal that could be worth about $4 billion.

The potential delisting of Dalian Wanda Commercial Properties comes just 15 months after it raised $3.7 billion in a Hong Kong initial public offering — the largest listing in Asia for 2014. The company did not say why it had decided to think about privatizing so soon after going public.

The group said in a news release on the Hong Kong Stock Exchange that it would offer no less than 48 Hong Kong dollars a share, or about $6.20 a share. That would be almost 24 percent higher than the price at which the stock closed on Wednesday.

Dalian Wanda shares, which had sunk well below their initial offer price, were bolstered by the news and leapt about 20 percent on Thursday morning. They closed up more than 18 percent, at $45.95.