Shares of GDS Holdings Ltd (GDS) tumbled 5.67% in after-hours trading on Tuesday, following the company's announcement of an automatic Class A ordinary shares offering. The data center developer and operator's stock price reaction suggests investors' concerns about potential share dilution.

The automatic share offering, filed by GDS Holdings, typically allows the company to issue new shares to the market over time. While such offerings can provide companies with additional capital for growth or debt reduction, they often lead to a decrease in stock price due to the increased supply of shares and the dilution of existing shareholders' ownership.

Additionally, GDS Holdings released its unaudited condensed consolidated financial results for the first quarter of 2025 on the same day. However, the specific details of the financial update were not immediately available. The combination of the share offering announcement and the financial results release appears to have prompted a negative reaction from investors in the after-hours session.