Sequential and Persistent

adjective

• In regular succession without gaps.
  • usage: "serial concerts"
  • synonyms: consecutive, sequent, serial, successive

Sequential is a class of bonds often described as short or long-term. It is critical to analyze the relationship of these bonds relative to the underlying collateral coupon. One version of these bonds is vulnerable to extension risk whereas another version is vulnerable to call risk.

adjective

• Never-ceasing.
  • usage: "the relentless beat of the drums"
  • synonyms: relentless, unrelenting
• Continually recurring to the mind."haunting memories"; "the cathedral organ and the distant voices have a haunting beauty- Claudia Cassidy
  • synonyms: haunting
• Retained; not shed.
  • usage: "persistent leaves remain attached past maturity"; "the persistent gills of fishes"
  • synonyms: lasting
• Stubbornly unyielding.
  • usage: "dogged persistence"; "dour determination"; "the most vocal and pertinacious of all the critics"; "a mind not gifted to discover truth but tenacious to hold it- T. S. Eliot; "men tenacious of opinion"
  • synonyms: dogged, dour, pertinacious, tenacious, unyielding

• (a.) Inclined to persist; having staying qualities; tenacious of position or purpose.
• (a.) Remaining beyond the period when parts of the same kind sometimes fall off or are absorbed; permanent; as, persistent teeth or gills; a persistent calyx; -- opposed to deciduous, and caducous.