The Principal Financial 52-week high stock price is 61.12, which is 9.1% above the current share price. The Principal Financial 52-week low stock price is 40.42, which is 27.8% below the current share price. The average Principal Financial stock price for the last 52 weeks is 52.59. How Does Preferred Stock Work? Mar 25, 2020 · This feature gives investors flexibility, allowing them to lock in the fixed return from the preferred dividends and, potentially, to participate in the capital appreciation of the common stock.