Morgan Stanley warns the 'mid-cycle rally is over'

Morgan Stanley has advised clients to slash exposure to the stock market after its three key warning indicators began flashing a "Full House" sell signal for the first time since the dotcom bust.

Teun Draaisma, chief of European equities strategist for the US investment bank, said the triple warning was a "very powerful" signal that had been triggered just five times since 1980.

"Interest rates are rising and reaching critical levels. This matters more than growth for equities, so we think the mid-cycle rally is over. Our model is forecasting a 14pc correction over the next six months, but it could be more serious," he said. Mr Draaisma said the MSCI index of 600 European and British equities had dropped by an average of 15.2pc over six months after each "Full House" signal, with falls of 25.2pc after September 1987 and 26.2pc after April 2002.

"We prefer to be on the right side of these odds," he said.

The first of the three signals Morgan Stanley monitors is a "composite valuation indicator" that divides the price/earnings ratio on stocks by bond yields. It measures "median" share prices that capture the froth of the merger boom, rather than relying on a handful of big companies on the major indexes.