Softbank’s great adventure seems to be coming to an end, as the Japanese operator and investment fund reported its worst ever loss, and seemed poised to sell stakes in telcos at home and in the USA. While it may reduce its holding in T-Mobile USA, or even exit the market, one of its assets is not in doubt – processor IP giant ARM, which has defied the recent crisis in Softbank’s portfolio and could even provide a saving grace in the form of an IPO. Softbank’s main businesses reported $13bn in total annual losses and it lost another $18bn on its investments. The company has now pledged to sell $41bn in assets to boost liquidity and fund a major stock…