The risk of a “flash crash” in markets is rising, strategists at Bank of America Merrill Lynch said on Friday, after a week in which previously-booming cryptocurrency Bitcoin tumbled, oil sank, and investors piled into stocks perceived as safer. Rising volatility across a range of asset classes and rapid deleveraging like that seen in oil markets in recent weeks are signs a bear market could have further to go, they said. Brent crude hit an eight-month low on Tuesday in its steepest one-day fall in more than three years and Bitcoin hit a 13-month low on Thursday, the latest assets to fall sharply. “Sell rallies,” ... (full story)