Spread and Index | How Floating Rate Debt Is Actually Priced
Floating rate debt is a formula, not a number: an index that moves, plus a spread that does not. A headline from rate on a marketing sheet describes neither.
What do spread and index mean on a floating rate loan?
Floating rate debt is priced as an index plus a spread. The index is a published market benchmark that moves on its own, most commonly SOFR in commercial real estate or the prime rate on some bank and SBA facilities. The spread is the fixed margin the lender adds for credit risk, quoted in basis points, where one hundred basis points equals one percentage point. SOFR plus 350 means the borrower pays the applicable SOFR at each reset plus 3.50 points. Because the index moves, a floating deal has no single rate, which is why a headline from rate on a marketing sheet, usually a fixed best case teaser, does not describe it at all.
, PeerSense Capital Advisory · Updated July 21, 2026
Key Takeaways
- Floating rate equals index plus spread. The index moves on a reset schedule; the spread is normally fixed for the term.
- Spreads are quoted in basis points. One hundred basis points equals 1.00 percent.
- A from rate on a marketing sheet is typically a fixed best case teaser and tells you nothing about a floating structure.
- Index floors, rate caps, reset frequency and fees can matter as much as the spread itself when comparing two quotes.
- Compare floating against fixed by modelling the all in cost at several index levels over your real hold period, not by comparing headline numbers.
Definition
A floating rate loan carries a rate that is recalculated periodically from two components.
The index. A published market benchmark neither party controls. In commercial real estate this is usually SOFR, the secured overnight financing rate, often in a term form such as one month or three month term SOFR. Some bank facilities and SBA variable rate lending reference the prime rate instead. The index moves with the market and resets on a defined schedule, monthly or quarterly being common.
The spread. The fixed margin the lender adds on top, quoted in basis points. This is the lender's price for the credit risk of that specific deal, and it is normally locked for the term.
All in rate = index at reset + spread
So a loan priced at term SOFR plus 350 basis points, with SOFR at 4.20 percent on the reset date, carries an all in rate of 7.70 percent until the next reset. If SOFR moves to 3.60 percent at the following reset, the rate becomes 7.10 percent. The spread stayed exactly where it was.
Basis Points, and Why Everyone Uses Them
A basis point is one hundredth of one percentage point.
- 25 basis points = 0.25 percent - 100 basis points = 1.00 percent - 350 basis points = 3.50 percent
The convention exists to kill ambiguity. If a lender says pricing improved by 0.25 percent, a borrower could reasonably read that as a proportional cut, taking 8.00 percent to 7.98 percent. Saying 25 basis points can only mean one thing: 8.00 percent becomes 7.75 percent. In documents and conversation it is abbreviated bps and spoken as bips.
On a $20,000,000 loan, 25 basis points is $50,000 a year. Small sounding numbers are not small.
Why a Headline From Rate Is the Wrong Comparison
Marketing sheets lead with a from rate because it is the most attractive single number available. Understanding what that number actually is makes it much less useful.
A from rate is normally:
- A fixed rate, even when the product being marketed is commonly floating - A best case, requiring the strongest sponsor, cleanest stabilized asset, lowest leverage, shortest term and best market simultaneously - A single point in time, often not refreshed as the market moves - Silent on structure, saying nothing about fees, prepayment provisions, recourse, floors or caps
A floating deal cannot be described by a single number, because it is a mechanism rather than a price. Setting a fixed from rate next to a floating structure is comparing an advertisement to a formula, and the comparison flatters whichever side chose the framing.
What to compare instead. On floating quotes: spread against spread, on the same index and the same tenor, then the floor, the cap requirement and cost, the reset frequency, and the fee stack. On floating against fixed: the modelled all in cost across the period you actually intend to hold the asset, at several plausible index levels, together with what it costs to get out early.
Floors, Caps and the Things That Move the Real Number
Two loans quoted at the same spread can behave very differently. The structural terms are where the difference lives.
Index floor. A contractual minimum applied to the index component. At SOFR plus 300 with a 2.00 percent floor, an index that falls to 1.40 percent still prices as though it were 2.00 percent: 5.00 percent all in rather than 4.40 percent. Floors protect lender yield in a falling market and are easy to miss when eyeballing quotes.
Rate cap. A purchased hedge limiting how high the index can go for the borrower. Above the strike, the counterparty covers the excess. Floating lenders, particularly on bridge and transitional debt, often require one at closing and again at extension. The cost is real, belongs in the deal budget, and moves with market conditions, so a renewal can price very differently from the original purchase.
Reset frequency. How often the rate recalculates. More frequent resets track the market more closely in both directions.
Index tenor. One month term SOFR and three month term SOFR are different numbers. A spread comparison across different tenors is not a like for like comparison.
Fees. Origination, exit, extension, unused line and administrative charges all sit outside the quoted rate and all affect what the money costs.
Prepayment provisions. Floating debt is often relatively open to prepay after a short lockout. Fixed rate debt, especially securitised, can carry defeasance or yield maintenance that makes an early exit expensive. If there is any chance of selling or refinancing early, this belongs in the comparison from the start.
The Test That Actually Decides It
The reason floating pricing matters beyond cost is that the rate drives the payment, and the payment drives the coverage test.
A deal that clears coverage comfortably at today's index can fail it after two resets in the wrong direction. Since the coverage test is checked at underwriting and, on many structures, monitored through the term with cash management or cash trap consequences, a borrower should always know the index level at which their coverage breaks, and hold that number in mind rather than the current one.
Coverage below 1.25x is the single most common reason a deal does not clear. In current commercial real estate conditions the debt yield test binds more often than loan to value does, and debt yield has a useful property here: it is calculated from net operating income and loan amount, so unlike a coverage ratio it does not move when the rate moves. That is exactly why lenders lean on it.
Pricing, structure and approval are the lender's decision. PeerSense is a capital advisory: we position a deal and place it with lenders whose credit box already fits it. We do not lend, fund, price or approve anything, and nothing here is a rate quote.
Frequently Asked Questions
What are the index and the spread on a floating rate loan?+
A floating rate loan is priced as an index plus a spread. The index is a published market benchmark that moves on its own, commonly SOFR or a term SOFR tenor in commercial real estate, or the prime rate on some bank and SBA facilities. The spread is the fixed margin the lender adds on top for credit risk, expressed in basis points. A loan quoted at SOFR plus 350 means the borrower pays whatever the applicable SOFR is on each reset date, plus 3.50 percentage points. The index moves; the spread normally does not.
What is a basis point?+
A basis point is one hundredth of one percentage point. One hundred basis points equals 1.00 percent, and 25 basis points equals 0.25 percent. Spreads are quoted in basis points because it removes ambiguity: saying a lender improved pricing by 25 basis points is precise, whereas saying they improved it by 0.25 percent could be misread as a proportional reduction. In loan documents you will see this abbreviated as bps and spoken as bips.
Why is a headline from rate on a marketing sheet misleading on a floating deal?+
Because a from rate is usually a fixed teaser: the lowest number any borrower on any product could theoretically achieve, typically requiring the strongest sponsor, the cleanest asset, the lowest leverage and the shortest term. It is a single number describing a best case. A floating rate deal is not a single number at all. It is a formula, index plus spread, that resets on a schedule, and the payment a borrower actually makes changes with the index over the life of the loan. Comparing a fixed from rate against a floating structure is comparing an advertisement to a mechanism. The only honest comparison on a floating deal is spread against spread, plus the floors, the caps, the reset frequency and the fees.
What is an index floor?+
An index floor, sometimes a SOFR floor, is a contractual minimum applied to the index component. If a loan is priced at SOFR plus 300 with a 2.00 percent floor and SOFR falls to 1.40 percent, the borrower still pays as though the index were 2.00 percent, giving an effective 5.00 percent rather than 4.40 percent. Floors protect the lender's yield when rates fall and are easy to miss when comparing quotes, because two deals with identical spreads can behave very differently in a falling rate environment if one has a floor and the other does not.
What is a rate cap and who requires it?+
A rate cap is a purchased hedge that limits how high the index component can go for the borrower. Above the strike price, the cap counterparty covers the excess. Floating rate lenders, especially on bridge and transitional debt, frequently require the borrower to buy one as a condition of closing and to renew it if the loan is extended. It matters for two reasons: the cap is a real up front cost that belongs in the deal budget, and its price moves with market conditions, so a renewal at extension can be materially more expensive than the original purchase.
How do you compare a floating quote against a fixed quote honestly?+
Model them, do not eyeball them. On the floating side, work out the all in rate at today's index, then at reasonable higher and lower index levels, and check the payment and the coverage ratio at each. Add the cap cost and any floor effect. On the fixed side, check the term, the amortisation and, critically, the prepayment provisions, because defeasance or yield maintenance on fixed rate debt can make an early exit expensive. Then compare like for like on all in cost across the period you actually intend to hold the asset. A floating deal that looks cheaper today can fail a coverage test after two resets.
What drives the spread a lender quotes?+
The spread is the lender's price for the credit risk of that specific deal, so it moves with everything that makes the deal safer or riskier: asset type and quality, leverage, coverage and debt yield, sponsor experience and balance sheet, market and submarket, lease profile and tenant credit, whether the asset is stabilized or transitional, term, and whether the loan is recourse. It also moves with capital market conditions independent of the deal. Pricing is set by the lender, on the lender's own credit decision. PeerSense is a capital advisory: we position the deal and place it with lenders whose box already fits it. We do not price, fund or approve anything.
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Indicative only, as of August 1, 2026. Not a quote, commitment or offer of credit. Final pricing, leverage and terms are determined by the lender at underwriting, after full transaction materials are reviewed. PeerSense does not lend and does not set pricing. What these terms mean.
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Editorial integrity: Published by PeerSense Capital Advisory · Written by Ed Freeman, Founder. PeerSense is a capital advisory firm, not a lender. Content is for educational purposes and does not constitute financial, legal, or tax advice. Rates and terms cited reflect approximate May 2026 market conditions and may not reflect current conditions at the time of reading. Consult a qualified financial professional for transaction-specific guidance.