Stock markets have rocketed higher since the election of U.S. president Donald Trump, despite fears emerging that Trump is feeding an asset price bubble. The S&P 500, the Dow Jones Industrial Average and the tech-heavy Nasdaq have all notched record highs since November,

Major U.S. averages slipped Tuesday afternoon, as investors kicked off the holiday-shortened trading week with attention on geopolitics, and an eye on the market circling record highs. The benchmark S&P 500 (SP500) shed -0.

The S&P 500 flirts with a record as U.S. stock-market investors return from a three-day weekend, awaiting minutes from the Federal Reserve's January meeting and data due later this week.