Tesla's (TSLA) cars often seem secondary to all the drama and headlines that the company generates. But its core business is actually going well, says Oppenheimer.

Where we were: Tesla stock is off 10% since the start of 2018, hurt most recently by a government investigation into its potential go-private plan, CEO Elon Musk's wild behavior, and a new investor lawsuit. It entered Thursday with a seven-day losing streak.

Where...