SoftBank Group's shares experienced a 7% decline on Thursday following lackluster earnings from Arm Holdings. Arm, a major holding for the Japanese conglomerate, reported weaker-than-expected licensing revenues for the December quarter. This triggered a sell-off, compounded by broader concerns in the tech sector regarding the impact of artificial intelligence on the industry.

Arm's revenue model relies on licensing its chip technology to major players like NVIDIA and Apple, along with royalty payments. The chip designer's disappointing performance was further exacerbated by a weak outlook from Qualcomm. This suggests potential headwinds for the smartphone market, where Arm's designs are widely used, impacting SoftBank.

SoftBank holds an 87.1% stake in Arm, making the chip designer a crucial component of its portfolio and its ambitions in AI and chipmaking. The company's recent listing aimed to unlock value, but current market sentiment suggests investors are cautious. Market analysts will be watching to see if the group can recover.

Investors are now assessing SoftBank's future, anticipating the company's next strategic moves. The decline in SoftBank shares reflects a broader market correction for tech stocks. The ongoing impact of AI and the performance of Arm will be key factors influencing the company's performance, as it navigates the volatile tech sector.