Yahoo Finance

Market Domination host Julie Hyman tracks the top market stories and trending stocks in this Market Minute.

Berkshire Hathaway (BRK-B, BRK-A) shares fall after Chairman and CEO Warren Buffett announced he’ll step down at the year's end. Twilio (TWLO) rises after HSBC upgrades the stock to a Hold rating, citing growth signs following a first quarter earnings beat.

Sunoco (SUN) will buy Canada’s Parkland (PKIUF) for $9.1 billion and plans to form a new public entity, Suncorp.

Stay up to date on the latest market action, minute-by-minute, with Yahoo Finance's Market Minute.