Prices are important.
Preferred shares are complex securities, which can seemingly act like bonds at certain times, but more like common equity at other times. Alongside market sentiment, the price of each preferred share is a key driver of this behaviour. For example, if a preferred share is trading at $26 but the issuer can redeem the issue at $25 anytime, the upside of this particular issue is limited, like a bond. The price of the preferred share will equally determine which yield calculation you should use to determine value. Valuing preferred shares properly can be a complex task but is required to truly understand the risk of the security.