Caps & Floors as Banking Hedges
Buying interest-rate insurance — protecting margin against rates going too high or too low.
An interest-rate cap pays you when a reference rate rises above a strike; a floor pays you when it falls below one. Think of them as insurance on rates — you pay a premium up front, and the option only pays out in the scenario you're protecting against.
How banks use them
- Cap — protects a balance sheet that's hurt by rising rates (e.g. funding that reprices up faster than assets). The cap caps your effective funding cost.
- Floor — protects income that's hurt by falling rates (e.g. floating-rate loans whose yield drops). Many loans embed a floor for exactly this reason.
- A collar (buy a cap, sell a floor) cheapens the hedge by giving up some upside.
Why it matters
Unlike a swap, an option-based hedge keeps your upside: you're protected against the bad scenario but still benefit if rates move your way. The cost is the premium. Caps/floors are common for hedging a specific exposure (a funding tranche, a loan pool) without restructuring the whole book.
How PhxIQ relates
The treasury and SOFR curves on the dashboard drive cap/floor pricing — higher volatility and higher forward rates make caps pricier. Watch where the curve sits relative to your strikes.