In May 2017, Paytm received its biggest round of stake by a single investor – SoftBank which also has a large stake in Alibaba, thus bringing the company's valuation to an estimated $10 billion.[36] In August 2018, Berkshire Hathaway invested $356 million for 3%- 4% stake in Paytm,[37][38] although Berkshire Hathaway confirmed that Warren Buffett was not involved in the transaction.[39]