There are high hopes for Arm’s upcoming IPO on the USA’s NASDAQ stock exchange, for its Japanese parent SoftBank, and for the whole chip and 5G technology sectors, which will welcome a boost at a time when they are under pressure from economic downturns and geopolitics. However, ARM’s public offering – which should take place this week – will itself be complicated by those geopolitical factors, as trade and cybersecurity battles continue to rage between the USA and China. This is one factor in the recent softening of SoftBank’s expectations for the value of the IPO – along with a weak US IPO market, that has so far raised only about 10% of the amount of capital it generated in…