SoftBank Group completed an acquisition of Ampere Computing, making the US-based chip designer a wholly owned subsidiary eight months after reaching a deal to buy it for $6.5 billion.

In a statement, SoftBank noted the impact of the takeover on its consolidated financial results is currently under review.

Ampere posted on X it is “proud to be a part of SoftBank Group, enabling Masayoshi Son’s vision for AI and continuing to drive forward with our innovative roadmap for high-performance, energy-efficient AI compute”.

Last week the US Federal Trade Commission halted an investigation into the proposed merger, removing the final obstacle for the deal.

Counterpoint research director Marc Einstein told Mobile World Live the tie-up is another strategic move as Son continues to build his AI empire. SoftBank also has acquired other chip designers, such as UK-based Graphcore in July.

“He’s vertically integrating everything, which means he’s assured revenue across the value chain.”

But Einstein noted the strategy also means the industry is “becoming increasingly circular, which is raising eyebrows”.