Financial Times

“Entrepreneurship, you will only understand it if you experience it for yourself. It’s not something I can explain in words.” – Masayoshi Son On September 4, the Financial Times was first to report that “SoftBank is the ‘Nasdaq Whale’ that has bought billions of dollars’ worth of US equity derivatives in a series of trades that stoked the fevered rally in big tech stocks…” Since then, a consistent drumbeat of other articles and podcasts have been published; some of them tying SoftBank in with Robinhood and other retail brokers as leading factors that may explain the (concentrated) run-up in US equities from the March lows to the early September highs. For those of you who don’t speak options as a first or second language, the logic of SoftBank’s potential impact on cash equity markets based on equity derivatives positions goes like this: Derivative markets are zero sum. For every unit long there is a unit short. Customers, like SoftBank, typically buy options – outright or via spreads – to be long deltas of the underlying security. Market [...]