Extended-hours trading is nothing new, but with more brokers offering 24/5 access, the stock market is becoming more global, accessible—and potentially volatile.

Here is how the Barron’s Roundtable members’ picks performed. Find investment ideas for your portfolio with the latest stock picks from Barron’s below. These picks are the product of the ...

Petroleo Brasileiro S/A Ord 0.59% R$518.6B Petroleo Brasileiro S/A Pref 0.16% R$518.6B ...