In Tuesday's pre-market Amazon, Tesla, Netflix and Apple are all pointing to another strong day in the market for big-tech stocks.

Big techs billionaire boys burgeoning wealth grew substantially as stocks soared on Monday, adding close to US$300bn.

As Amazon stock rose by around US$235 or 7.93%, to reach US$3,196, founder and chief executive Jeff Bezos counted another US$13bn into his personal wealth it was the record largest increase in a single day for techs richest man.

In 2020 to date, as coronavirus locked-down bricks and mortar stores, the Amazon boss and majority shareholders wealth has ballooned by some US$74bn.

Elon Musk meanwhile also built some bank as () shares shot up US$142 or 9.47% to US$1,643, swelling the electric car makers valuation by US$26bn.

Rising US$8.72 or 4.3% to close Monday at US$211.60, Microsoft gained US$66.8bn in value (to US$1.6 trillion).

Apple Inc () gained US$8.12 or 2.11% to finish Monday at 393.43, marking its valuation at US$1.7 trillion.

Google owner Alphabet added US$47 or 3.1% to US$1,563, valuing the stock at US$1.07 trillion.

Mark Zuckerbergs Facebook advanced 1.4% higher to US$245.42, putting the social networks value just shy of US$700bn.

Inc () closed up 1.9% to US$502.41, taking the streaming business to US$220.1bn.

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Amazon-led rally boosts Jeff Bezos and Big tech"s billionaire boys - Proactive Investors USA & Canada