Investors in semiconductor stocks are feeling less worried about a very important risk factor.Arm Holdings (ARM 4.80%) stock is advancing in Tuesday's trading. The semiconductor company's share price was up 5% as of 3 p.m. ET, according to data from S&P Global Market Intelligence.While there doesn't appear to be any business-specific news behind the gains, investors are feeling less worried about the company's prospects in China. Arm stock had seen big sell-offs late last week due to tense geopolitical dyna ...