Structure

Field	Type	Nullable	Description
`callable`	flag	never blank	Y when the issuer may redeem the bond early, else N.
`puttable`	flag	blank when not on file	Y when the holder may sell the bond back early, else N.
`make_whole_call`	flag	blank unless the bond is callable	Y when the issuer may call the bond at a make-whole (formula) price on or after the pricing date, else N.
`next_call_date`	date	blank unless a call at a stated price is on file	First date on or after the pricing date the issuer may call the bond at a stated price.
`next_call_price`	decimal	blank unless a call at a stated price is on file	Price of the call on next_call_date. Unit: percent of par.
`years_to_next_call`	decimal	blank unless a call at a stated price is on file	Years from the pricing date to next_call_date (actual days / 365.25). Unit: years.