
Yup, my bad as well. I read about P-Shares in Security Analysis, wasn't sure tho, do they exists till this day.Sorry, I should have emphasized that these are the preferred stock shares. It's a form of debt that pays almost in perpetuity or until called. Subordinate to Bonds but senior to Common Shares in the event of a corporate liquidation.
Given that it is an obligation to pay an amount on a periodic basis, it's really odd this thing never swung around with medium or long rates.