Big Tech rolls on as investors shrug off regulatory pressure

Pressure is rising on Big Tech firms, signaling tougher regulation in Washington and elsewhere that could lead to the breakup of the largest platforms. But you'd hardly know by looking at their share prices.

Shares in Apple, Facebook, Amazon and Google parent Alphabet have hovered near record highs in recent weeks, lifted by pandemic-fueled surges in sales and profits that have helped the big firms extend their dominance of key economic sectors.

The Biden administration has given signs of more aggressive regulation with appointments of Big Tech critics at the Federal Trade Commission. 

But that has failed to dent the momentum of the largest tech firms, despite tough talk and antitrust litigation in the United States and Europe, with US lawmakers eyeing moves to make antitrust enforcement easier.

Big Tech critics in the United States and the EU want Apple and Google to loosen the grip of their online app marketplaces; more competition in a digital advertising market dominated by Google and Facebook; and better access to Amazon's e-commerce platform by third-party sellers.

One lawsuit tossed out by a judge but in the process of being refiled could force Facebook to spin off its

Instagram and WhatsApp platforms, and some activists and lawmakers are pressing for breakups of the four tech giants.

All four have hit market valuations above $1 trillion, with Apple over $2 trillion. Alphabet shares are up some 80 percent from a year ago, with Facebook up nearly 40 percent and Apple almost 30 percent. Amazon shares are roughly on par with last year's level after breaking records in July.