|                       |        |      A federal court in the United States has authorized the Internal Revenue Service (IRS) to serve a "John Doe Summons" on the crypto exchange Kraken, seeking identities of U.S. taxpayers who have used cryptocurrency, the Department of Justice said on Wednesday.      |              |                     |        |      Allstate Corp (ALL.N) on Wednesday posted a first-quarter profit that beat analysts' estimates by nearly 60%, driven largely by investment income and its core insurance businesses.      |              |                     |        |      A rotation out of growth and technology stocks and a recent slide in shares of Tesla Inc (TSLA.O) are weighing on the performance of ARK Innovation (ARKK.P), the flagship exchange-traded fund managed by star stock picker Cathie Wood that bested all other U.S. equity funds in 2020.      |              |                     |        |      Prudential Financial Inc (PRU.N) on Tuesday posted profits that topped analysts' estimates by nearly 50% for the first quarter, boosted by record results in its asset management and retirement business.      |              |                     |        |      Private-equity company Blackstone Group Inc (BX.N) said on Tuesday it has hired a Goldman Sachs Group Inc (GS.N) partner to head client services and business development around the world for its hedge fund unit.      |              |                     |        |      For some Berkshire Hathaway shareholders a list of post-pandemic challenges including looming inflation, a dearth of acquisitions and more environmental and social disclosure demands are prompting a rethink on Warren Buffett's conglomerate.      |              |                     |        |      Robinhood Financial on Monday struck back against comments by Warren Buffett that likened the retail brokerage to a casino that encourages millions of inexperienced day traders to place short-term stock market bets.      |              |                     |        |      The U.S. Supreme Court on Monday rebuffed a bid by current and former employees of Wells Fargo & Co (WFC.N) to revive a lawsuit over losses to their retirement plan following a scandal over fake accounts that rattled the bank in 2016 and led to billions of dollars in fines and penalties.      |              |                     |        |      Warren Buffett on Saturday likened the millions of inexperienced day traders who entered the stock market in the past year to gamblers, and said commission-free brokerages such as Robinhood Financial for promoted a casino-like atmosphere.      |              |                     |        |      Warren Buffett's Berkshire Hathaway Inc (BRKa.N) will hold its annual meeting on May 1 in Los Angeles. As in 2020, the meeting will be held virtually because of the COVID-19 pandemic.      |              |          |            |         |