Japan's Nikkei index experienced a significant drop of 4% on Friday, largely due to a sharp decline in tech investor SoftBank Group, which plunged over 12% following reports of a potential delay in OpenAI's IPO. This downturn erased previous gains, impacting other AI-related stocks. Despite the volatility, strategists anticipate a continued rally in AI and chip sectors, citing strong long-term earnings potential and an industry-wide revolution.