Rocket Companies CEO Jay Farner on the stock's short squeeze

Rocket Companies reported quarterly earnings of 89 cents per share, in line with forecasts. Loan volume for the lender jumped during the quarter, but current-quarter guidance for the key metric of “gain-on-sale” margins is well below first-quarter levels. Its shares plummeted 13.6% in premarket trading. Rocket Companies CEO Jay Farner joined "Squawk Box" on Thursday to discuss.