Can a bond’s yield rise sharply with a residual of zero?

Yes — that is the usual case. When Treasuries rise 30 basis points and the corporate index widens 5, a bond whose yield rises 35 has a residual of zero. Only the part beyond the market and the rating class is issuer-specific.

Which bonds does Closelook decompose?

Oracle 4.375% May 2055 (the stressed name), Nvidia 3.5% April 2050 and Alphabet 2.25% August 2060 (the quality comparables), plus the Oracle–Nvidia and Oracle–Alphabet spreads.

Why not use credit default swaps?

Single-name CDS on these issuers is institutional data (Markit, ICE, Bloomberg) that no retail-accessible vendor carries. Bond yields from the vendor we hold, decomposed daily, are the closest public equivalent.

Glossary term

AI Credit Residual

The part of an AI borrower’s bond-yield change that is left after subtracting the Treasury move, the market-wide credit spread move and the move in its rating cohort. It measures whether the market charges the issuer more than its rating and the market explain.

AI-generated — produced automatically by Closelook’s systems under this site’s editorial policy.

What it means

A corporate bond’s yield changes for four reasons: Treasury yields move; credit spreads across the market move; spreads for its rating class (BBB, single-B) move; and something specific to the issuer moves. The residual is the fourth term. Written out: Δ yield = Δ Treasury + Δ index OAS + Δ rating cohort + Δ residual. A positive residual means lenders demand more from this issuer than from its peers; a residual near zero means the bond is just tracking the market.

The residual is what makes a credit tape useful when spreads are tight. Index spreads at multi-year lows print “no stress” for everyone; the residual isolates the one issuer the market has started to doubt.

Why it matters for the AI trade

The bond that matters most is Oracle’s 4.375% of 2055. In September 2026 it yielded 7.62%, up 63 basis points since June — but Nvidia’s 2050 bond had risen 74 and Alphabet’s 2060 bond 52 over the same period. Oracle’s spread over Nvidia widened by only 5 basis points in twenty days. The residual was small: the market charged Oracle for being a debt-funded builder, as it had for months, and charged everyone for higher Treasury yields. That distinction — rates event, not credit event — is the reading the tape gave into the September Fed meeting.

How Closelook uses it

The AI credit stress tape publishes the decomposition for three bellwether bonds and two issuer spreads (Oracle–Nvidia, Oracle–Alphabet) with twenty-day changes. A residual widening past its June range is the trigger that would move the funding ladder reading from Tier 3 to Tier 2; the option-adjusted spread entry explains the market term in the equation.

Common questions

Can a bond’s yield rise sharply with a residual of zero?: Yes — that is the usual case. When Treasuries rise 30 basis points and the corporate index widens 5, a bond whose yield rises 35 has a residual of zero. Only the part beyond the market and the rating class is issuer-specific.
Which bonds does Closelook decompose?: Oracle 4.375% May 2055 (the stressed name), Nvidia 3.5% April 2050 and Alphabet 2.25% August 2060 (the quality comparables), plus the Oracle–Nvidia and Oracle–Alphabet spreads.
Why not use credit default swaps?: Single-name CDS on these issuers is institutional data (Markit, ICE, Bloomberg) that no retail-accessible vendor carries. Bond yields from the vendor we hold, decomposed daily, are the closest public equivalent.