CumulativeIf a payment is skipped, a cumulative issue still owes it (and must catch up before any common dividend); a non-cumulative one does not.
Interest DeferrableOn some baby bonds the issuer may postpone interest for a period — common on junior subordinated notes.
Floating / Reset RateThe rate isn't fixed forever — after a set date it resets to a benchmark (e.g. 3-month SOFR or the 5-year Treasury) plus a spread.
MaturityFor a baby bond, the date the principal is repaid. Most preferreds are perpetual — no maturity.
ConvertibleWhether it can turn into the company's common stock. "Change-of-control conversion" means that right applies only if the company is taken over.
Conversion Price / RatioFor convertibles, the price or number of common shares each unit converts into.
SeriesThe class label from the SEC filing (e.g. Series A). Note: it can differ from the ticker letter.
IssuedThe date the security first settled — when it came to market.
Shares OfferedHow many shares (or depositary shares) were sold in the original offering.