After a big September selloff, megacap tech stocks might be cheap again. P/E ratios have fallen steeply and are at their biggest discount since Jan. 2017 as analysts continue to boost their earnings estimates for the next fiscal year, according to Goldman Sachs. Plus, Microsoft CEO Satya Nadella today took the stand in the DOJ’s antitrust trial against Google, and explained why it’s so hard to compete against the tech giant’s search engine dominance.