Warren Buffett generated more than $800 million on Wednesday after shares in software firm Snowflake doubled on the company’s first day of public trade. Buffett’s flagship holding company Berkshire Hathaway owned roughly $730 million worth of Snowflake stock leading into yesterday market debut, based on its IPO price of $120 per share. In what’s now heralded as the biggest software IPO of all time, Snowflake stock peaked at $319 per share (up 265%) and closed at $253.93 (up 111%), awarding Snowflake a market value of some $70 billion. According to CNBC, this grew Berkshire’s stake in the Californian data-warehousing startup…

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