Nasdaq tilts lower, while S&P 500 hits record high

The main US stock indices opened mixed on Friday, as Nasdaq fell amid pressures on the tech sector, while S&P 500 extended its gains and hit new records.

Nasdaq was weighed down by some tech stocks, as Snapchat shares fell over 20%, after disappointing data on Thursday.

Many major companies reported their quarterly business results for the third quarter, amid anticipation of Apple, Amazon, Microsoft, Alphabet, Facebook's reports.

Former US President Donald Trump announced plans to launch a new social media network called Truth Social, to stand up to what called "the tyranny of big tech" such as Facebook and Twitter.

As for stocks, Dow Jones rose 0.4% or 140 points to 35,743 as of 14:29 GMT, and S&P 500 rose 0.2% or 9 points to 4,559, while Nasdaq fell 0.2% or 23 points to 15,192.