OKAY, HONEY, COME SIT HERE. TODAY, JOE IS TESTING SOMETHING NEW. A MEDICATION CALLED FOR INSIDE THIS NASAL SPRAY. ONE, TWO. THREE. JOE IS THE FIRST PATIENT WITH ALZHEIMER’S TO TRY THIS DRUG.

The P/B ratio shows how a stock's market price compares to its book value. It helps gauge whether a stock is undervalued or overvalued relative to its net assets.