European markets head for flat open as investors watch delta variant, await U.S. data

European stocks will be closed on Tuesday due to the global investor monitoring the spread of delta Covid-19 and waiting for key economic data from the U.S.According to IG data, Britain's FTSE 100 is 4 points lower at 7,069, Germany’s DAX will inch around 8 points lower at 15,546, and France's CAC 40 will shed a single points to 6,557.Despite overnight gains on Wall Street that saw the S&P 500 close at record highs and the Nasdaq Composite close at new records, shares in Asia-Pacific retreated Tuesday. U.S. stock markets are forecasting a slightly lower open Tuesday. Overnight, oil prices fell as Covid-19-related flare-ups threatened to reduce fuel demand.The rapid spread of Covid-19 delta, a highly contagious variant of Covid-19, has sparked concern in Asia-Pacific. Many countries are currently fighting outbreaks.