Use case · Hedging advisors
My client asked: should we cap or swap?
Your client just refinanced out of a fixed-coupon bond into floating debt at SONIA + 600 — month one — and the financing committee wants a hedging memo by Friday: what does a 2-year cap cost at strikes 0.25% and 0.50% above today's swap rate, and over 3 years, versus just fixing with the swap? The free cap pricer you know is USD-only, and this deal is in GBP. The only other route is asking a bank for an indicative quote they know may never trade.
Last updated: July 2026
Price it yourself. BlueGamma's cap pricer returns a premium matrix by tenor and strike — GBP and EUR included — next to the live mid swap rate, so both sides of the memo come from one screen, the same afternoon. Indicative mid pricing is the right tool at this stage; executable quotes come later, if the client decides to trade. BlueGamma is an interest rate data and pricing platform used by 80+ financial institutions for swap rates, forward curves and cap pricing across 30+ currencies.
How you're probably getting cap prices today
Every advisor we speak to has assembled some version of the same workaround — and every version has a cost. The question itself never goes away: clients typically only call after the move ("can I fix my rates?" — usually once rates have already gone up), and at each closing the whole menu is back on the table.
- Ring a relationship bank for an indicative quote. It works — until the transaction is clearly heading to a swap, or to a different lender, and the "quote request" starts spending goodwill you'll want later. As one debt advisor put it, when the outcome is already known, "we may not necessarily want to reach out to our relationship contacts knowing full well they're not gonna get any business from us on a certain transaction." And every bank quote arrives loaded: "they'll all have their own credit charges, et cetera, associated with it — whether it's a swap or an interest rate cap," as a VP of corporate development at a listed UK leisure group described comparing lender quotes on his SONIA + 600 facility.
- Use the free cap pricer everyone knows. The widely-used free rates website's tool is USD-only — the moment your deal is GBP or EUR, it's no help. Its published rates also update "every two hours or so," which is a long time on a pricing day — and the free tier has been shrinking, leaving teams who relied on it scrambling.
- Pull it from a legacy terminal. An independent rates advisor found that "[the legacy vendor] for some reason gives prices that are like roughly two or three basis points above what the customers receive from the banks" — the wrong direction to be off when your name is on the recommendation. And on a premium terminal, the data you can see isn't the data you can use: forward-curve downloads can be a separate ~$50k/year add-on — "you can see them, you can't copy them."
- Ask a debt fund lender who can't price it anyway. Non-bank lenders often have no derivatives desk, so the quote gets outsourced ad hoc — another dependency, another day of lag before the memo moves.
- Lean on the hedging advisor's own portal. Borrowers who outsource the analysis often get their curves and cap prices through the advisor's proprietary platform — workable, but as the head of financing at a European renewables IPP put it, "we're still accessing their own platform… that's still fine and that's great. But I wanted to know basically what is it that you are doing" — there's no independent view to check the advice against.
- Build a pricer in-house. A US hedging advisory serving commercial real estate and municipalities weighed "building like a swap pricer ourself… going to [an open-source quant library] and hiring a developer to build it — and the missing piece there would be just a volatility surface for caps." The maths is documented; the cap vols are the part you can't easily source.
How teams describe the cap-or-swap moment
"The question of fixing the base rate or finding the appropriate hedging instrument is always on the table every time we have a closing that's upcoming. What is going to be the strategy in the construction? Do we fix before? Do we fix at each disbursement? Are we going to simply take the spot rate and just swap? Do we take a cap? Do we just hedge the whole thing at one go?"
Head of financing & investments, European renewables IPP — on construction-phase hedging strategy for USD project debt
"Prior to this refi we had a five year bond, so the rate was fixed. We never really thought about it… now with the refi we're floating. We're sort of evaluating all the different hedging options — is it something that's gonna be more set-and-forget if we do one of these hedging opportunities, or something we need to be monitoring and have tools to do this in real time?"
VP corporate development, listed UK leisure group — month one of a SONIA + 600bp private-credit facility, first floating debt after a fixed bond
"There is a floor of, I think it's gonna be 1% on [EURIBOR] on our private credit facility. And they're just suggesting that we might be better off looking at interest rate caps rather than swaps, given that floor's in place."
Finance lead, Irish SME equipment lender — where an embedded lender floor tilts the answer toward a cap
"Real estate people seem to like caps… because they can capitalise the cost of it and then they don't need to disclose it in their interest cover or anything like that… more corporates prefer swaps."
Debt advisory MD, global consultancy — who sees roughly a 60/40 split of swaps to caps across his book
"Wanting a sort of web-based solution whereby a simple UK IRS swap can be priced and also caps as well… swaps and caps. Key thing."
CEO, UK hedging advisory to real-estate borrowers, corporates and infrastructure funds — sterling cap pricing was the dealbreaker requirement
"If I can just use someone else's calculator, that's not [the terminal], for cheaper than I can not have to build it, then I could be very interested in that."
Principal, US hedging advisory (commercial real estate, municipalities) — on buy-vs-build for a rate cap calculator
From "should we cap or swap?" to a committee-ready memo
One important framing point first: borrowers don't buy at-the-money caps. In practice a cap is struck out of the money — typically 0.25% or 0.50% above the at-the-money level — as insurance against rates moving materially against you, while a swap fixes the rate outright. Comparing an ATM cap's premium to the swap rate is a strawman; the real committee question is what protection at a sensible out-of-the-money strike costs against the certainty of the swap.
Sector shapes the starting point, too. Real-estate borrowers tend to favour caps — the premium can be capitalised into the financing and kept out of interest-cover calculations — while corporates lean toward swaps; one debt advisory MD puts the flow he sees at roughly 60/40 swaps to caps. And if the facility carries an embedded lender floor (a 1% EURIBOR floor on a private-credit facility, say), the calculus tilts further toward the cap, because a vanilla swap leaves the borrower paying the floor when rates fall below it. The memo should reflect which of these worlds your client lives in.
Set up the cap in the cap pricer
Choose the currency and index (SONIA, EURIBOR, SOFR and more), the term, payment frequency and notional. Amortising or non-linear profiles? Copy-paste the drawdown/repayment schedule from your model straight into the notional profile — no re-keying line by line.
Read the tenor × strike premium matrix
The pricer returns the upfront premium across a grid of tenors and strikes in one view — exactly the shape of the quote packs committees ask for, since the debate is almost always across strikes: how much cheaper does protection get at +0.50% versus +0.25% above the money, and is the saving worth the extra headroom given away?
Put the live swap rate next to it
In the swap pricer, price the mid swap rate on the same structure — same start date, same payment dates, same amortisation profile. It refreshes every 30 seconds, so the cap premiums and the swap rate in your memo are from the same market moment, not from two sources on two days.
Run the scenario comparison
Generate the cap-vs-swap-vs-blend comparison: upfront cost, expected cash flows off the forward curve, and total interest cost under curve-shift scenarios — the numbers that let the committee weigh certainty (swap) against retained upside plus premium (out-of-the-money cap). This is the "usual, typical analysis between swaps and caps" every hedging advisor runs — except the strategy comparison starts from live data instead of a spreadsheet you maintain. And it stays advisor-led: as one hedging consultant put it, "clients are not gonna be playing around with what happens if I change the strikes on the caps or if I extended the hedge — it's more us doing the analysis."
Export the client-ready presentation — or the raw numbers to Excel
Generate a hedging-analysis presentation directly from the priced scenarios — rate context, the strike/tenor pricing grid, trade-offs and scenario tables — as a first draft you edit into the committee memo, rather than a deck you rebuild from scratch. Or pull the matrix into Excel and layer your house analysis on top — the workflow hedging advisories asked for: "something that easily from your system you can put into Excel and then on top of that, our analysis."
| Strike | 1Y | 2Y | 3Y | 5Y |
|---|---|---|---|---|
| ATM +0.25% | 0.21% | 0.48% | 0.79% | 1.42% |
| ATM +0.50% | 0.14% | 0.36% | 0.62% | 1.16% |
| ATM +1.00% | 0.07% | 0.21% | 0.40% | 0.82% |
Strikes shown out of the money, as borrowers actually buy caps. Live premiums depend on the curve and volatility on the day.
Where else would the cap price come from?
| Bank indicative quote | Free rates website cap pricer | Terminal / legacy data vendor | Build it in-house | BlueGamma | |
|---|---|---|---|---|---|
| GBP / EUR coverage | Yes — if the desk engages | No — USD-only | Yes | Whatever you build vols for | Yes — cap pricing across 30+ currencies incl. SONIA and EURIBOR |
| Tenor × strike matrix | Only the strikes you ask for; each revision is another email | Single USD structure | One structure at a time | Yes, once built | Full grid by tenor and strike in one view |
| Cap volatility surface | Embedded in the quote, invisible to you | Hidden, USD-only | Extra licence; extracts capped | "The missing piece" — vols are the part you can't easily source | Included — sourced from a leading regulated interdealer broker |
| Closeness to executable bank levels | Includes the bank's margin by construction | Prior-day / 2-hour-lagged reference | One legacy vendor found 2–3bp above what customers actually get from banks | Depends on the vols you source | Mid pricing customers benchmarked as closer to real bank levels |
| Relationship cost of asking | High — burns goodwill when no trade is coming | None | None | None | None — no desk involved until you choose to trade |
| Turnaround | Hours to days, desk-dependent | Instant (USD only) | Instant, terminal seat required | Months of build, plus a developer hire | Instant; rates refresh every 30 seconds |
| Amortising / custom notional profile | Yes, via the desk | No | Terminal workflow | Build it yourself | Yes — paste the schedule from your model |
| Getting the data out | PDF or email, per request | Manual copy from a web page | Download restrictions — forward-curve export can be a ~$50k/yr add-on: "you can see them, you can't copy them" | Yours, once it exists | Excel export, presentation export, API/MCP |
| Commitment | — | Free (and shrinking) | Annual contracts typical | Developer salary + maintenance forever | Monthly subscription — "it's not a two-year marriage" |
Several hedging advisories run BlueGamma deliberately as a second source alongside a premium terminal — "something I'm looking to have as a secondary sort of source rather than having yet another [terminal] licence," as one UK advisory CEO framed it — so the cap side of the practice doesn't need another terminal seat.
Advisors who run this exact question
A London debt advisory team evaluated BlueGamma while closing a live deal — a client wanting near-live SONIA updates through pricing — and then dug into the cap pricer for the committee packs they produce. UK and US hedging advisories run it as the swaps-and-caps engine behind their client analysis. A Nordic rates advisor uses cap pricing for a rarer version of the same call: clients hold state-granted caps embedded in housing loans, and the question is whether to monetise the cap and fix with a swap instead. And on the borrower side, the financing team at one of Mexico's largest REITs prices SOFR swaps and caps on its US-dollar debt directly.
"That's almost always a feature of the quotes that we need to raise is a variety of strike rates. So they can evaluate which makes the most sense… it's a useful matrix for sure."
Debt advisory associate, global real-estate consultancy (London) — on the tenor × strike pricing matrix for clients with "a financing committee where we produce a bit more of an in depth hedging recommendation""We might know they're gonna go with the swap, in which case we may not necessarily want to reach out to our relationship contacts knowing full well they're not gonna get any business from us on a certain transaction."
Debt advisory director, global real-estate consultancy (London) — on why pricing a cap without calling a bank matters"[The legacy vendor] for some reason gives prices that are like roughly two or three basis points above what the customers receive from the banks… Looks like your pricing is closer to what we get from the banks."
Founder, independent interest-rate advisory to Nordic municipalities and housing providers — after benchmarking BlueGamma against a legacy market-data vendor and real bank quotes"You change the loan from a normal loan containing the cap into a fixed loan by selling the cap and doing the IRS… Some of the caps are at 3.4%, so you get value… you basically get positive expected value if you're gonna hedge anyway."
Founder, independent interest-rate advisory (Nordics) — on valuing state-granted embedded caps and advising clients to monetise the cap and switch to a swap"It's more for us to start gauging when the right time to actually act on them is… we're waiting for things to kind of get back to a more affordable range… It's more how much the cap gonna cost."
Director of case design, US premium-finance life insurance agency — on watching cap costs to time purchases for clients' floating-rate loans"We do most of our financing in dollars. And we need the SOFR. And I saw you have the swap and cap prices. So that also works a lot for us."
Financing team, one of Mexico's largest REITs (US multifamily portfolio) — pricing swaps and caps on USD SOFR debt in-house"Just on the swap pricing in general — when it says mid swap rate, what does that actually mean? What is the source of the pricing? Is it sort of an average of consensus on like 12 bank quotes?"
VP corporate development, listed UK leisure group — the trust question every borrower asks before putting a number to committee (BlueGamma's answer: broker-sourced mid, not a survey)"Banks have actually stopped providing a value for the optionality in the [mark-to-market] reporting… banks are saying, hey, come to us, we will go to our traders and then we will give you a price."
Co-founder (ex-bank quant), Danish mortgage-analytics firm — on why independent pricing of embedded caps and floors matters when bank statements omit the option valueCap pricing on BlueGamma, in numbers
FAQs
It depends on where 3% sits relative to the SONIA forward curve, the term, the notional profile and market volatility on the day. If 3% is comfortably above the forward curve (out of the money), a 2–3 year cap typically costs a fraction of a percent of notional upfront; the further above the curve the strike sits and the shorter the term, the cheaper it gets. BlueGamma's cap pricer gives you the live premium for your exact structure, and the surrounding strikes and tenors, in one matrix.
A swap fixes the rate — full certainty, no upfront premium, but breakage costs if the loan repays early and no benefit if rates fall. An out-of-the-money cap costs a premium upfront but keeps the downside of rates capped while retaining the benefit of falling rates, and it has no breakage — worthless-at-worst optionality. The decision usually turns on the lender's hedging requirements, the client's prepayment flexibility, and how the cap premium compares to the interest saving the swap locks in. The comparison should always use realistic out-of-the-money cap strikes, not an at-the-money strike.
Borrowers buy caps out of the money — commonly 0.25% or 0.50% above the at-the-money (swap-equivalent) level, sometimes further out where the cap is pure disaster insurance. An at-the-money cap is rarely bought in practice, so quoting one against the swap rate misrepresents both options. Committees typically want several strikes side by side to trade off premium against interest-cover headroom, which is exactly what a tenor × strike matrix shows.
Yes. BlueGamma prices caps on SONIA, EURIBOR, SOFR and other indices across 30+ currencies in a web app, with no terminal seat. The widely known free cap pricer covers USD only, and its free rate pages lag by roughly two hours — fine for a rough sense-check, not for a GBP committee memo on a pricing day.
BlueGamma shows the mid — the fair reference level before a bank adds its execution and credit charges, so expect the traded price to sit somewhat above mid. That's still the right anchor for a recommendation: as one debt advisory MD put it, "if you're actually going to execute a cap, you'd stick it out to the market and get some quotes… but — good enough, right?" Users who benchmarked found a legacy market-data vendor running 2–3 basis points away from what customers actually got from their banks, while BlueGamma's pricing came in closer to real bank levels.
Often, yes. If the facility floors EURIBOR at, say, 1%, a vanilla swap leaves the borrower paying the floored rate on the loan while receiving the actual (lower) floating rate on the swap when rates fall below the floor — the hedge and the loan stop matching exactly when the borrower would want the benefit. That's why treasury advisers frequently steer floored private-credit borrowers toward caps instead. Price both on the actual facility terms and show the committee the difference rather than assuming the vanilla answer.
Advisors who see both sides put the flow at roughly 60/40 swaps to caps, split largely by sector. Real-estate borrowers like caps because the upfront premium can be capitalised into the financing and kept out of interest-cover covenant calculations, and because a cap has no breakage if the asset sells early. Corporates more often prefer the certainty and zero upfront cost of a swap. Neither is "right" in general — which is exactly why the committee memo should show both, priced on the same structure at the same moment.
Yes. Paste the drawdown or repayment balance schedule straight from your Excel model into the notional profile, and the cap (or swap) is priced on that exact structure — increasing, amortising or sculpted. You don't have to approximate the loan as a bullet, and you can pull the results back into Excel to layer your own analysis on top — the "fit customised schedules into Excel" workflow hedging advisories asked for.
Not to build the recommendation. You can price the cap and the swap independently, put the scenarios to the committee, and only involve a desk once the client has actually decided to trade — which protects relationship capital when you already know a particular transaction won't produce business for the bank you'd be calling.
Yes — the licence covers using the data within your models and client-facing analysis, which is how advisory firms use it day to day. The cap pricer can also generate a first-draft hedging presentation (rate context, pricing grid, scenario comparison) that you edit into your house format. If you're comparing providers, check this carefully: many data licences treat client-facing use as redistribution and price it separately.
Price the cap and the swap before your next committee memo
Full cap pricer, live swap rates and scenario comparison — all included in the trial.
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