Bank of America’s top global strategist shares 4 signs that a bubble continues to grow in US stocks — and 4 indicators to know when to get out of the market

• Stocks continue to head into bubble territory, says Bank of America’s Michael Hartnett.
• Market overextensions are evident in the inflated semiconductor sector and the Nasdaq’s trend.
• Watch real rates, investor sentiment, and PE ratios to know when to exit the market, Hartnett said.

Stocks have been on a relentless tear over the last five months, with the S&P 500 rising to the 5,000 mark for the first time. Since October 27, the benchmark index has gained nearly 25% as investors have cheered on a strong economy and blowout earnings reports from mega-cap tech stocks.