This outlook covers the investment grade corporate bond market with figures that update each business day from the Federal Reserve Bank of St. Louis (FRED). As of October 1, 2026, the ICE BofA US Corporate Index yielded 5.99%, +121 bps from a year earlier, and its option-adjusted spread was 86 bps. Over the daily history FRED publishes, which begins October 3, 2023, the index yield has ranged from 4.67% to 6.44% and the spread from 73 bps to 133 bps. In short, yields are high relative to most of the past decade, while the extra yield for credit risk remains narrow.
The sections below cover rates, spreads, supply, sector and quality positioning, maturity, illustrative return scenarios, risks, and how corporate bond yields connect to cap rates on investment grade triple net real estate. This page states current data and a framework for using it; it does not forecast where rates or spreads will go.
Snapshot: Rates and Spreads
Interest rates and inflation expectations, now and a year earlier:
| Measure | Latest | A year earlier | Change |
|---|---|---|---|
| Effective federal funds rate | 3.88% | 4.09% | −21 bps |
| 2-year Treasury yield | 4.78% | 3.55% | +123 bps |
| 10-year Treasury yield | 5.24% | 4.12% | +112 bps |
| 30-year Treasury yield | 5.61% | 4.72% | +89 bps |
| 10-year breakeven inflation rate | 2.36% | 2.34% | +2 bps |
| ICE BofA US Corporate Index effective yield | 5.99% | 4.78% | +121 bps |
Federal Reserve Bank of St. Louis (FRED): effective federal funds rate (DFF), Treasury constant maturity yields (DGS2, DGS10, DGS30), 10-year breakeven inflation (T10YIE), and ICE BofA US Corporate Index effective yield, latest observations as of October 1, 2026, compared with the nearest observation one year earlier. Updated each business day.
Yields and spreads by rating category:
| Index (rating category) | Effective yield | Option-adjusted spread | Spread range since history start |
|---|---|---|---|
| AAA | 5.81% | 42 bps | 27 to 59 bps (low Aug 15, 2025; high Apr 7, 2025) |
| AA | 5.80% | 61 bps | 41 to 73 bps (low Aug 18, 2025; high Apr 7, 2025) |
| A | 5.84% | 73 bps | 59 to 115 bps (low Jan 22, 2026; high Oct 20, 2023) |
| BBB | 6.19% | 106 bps | 92 to 163 bps (low May 29, 2026; high Oct 20, 2023) |
| Investment grade composite | 5.99% | 86 bps | 73 to 133 bps (low Jan 22, 2026; high Oct 20, 2023) |
| BB | 7.03% | 204 bps | 150 to 311 bps (low Aug 28, 2026; high Oct 20, 2023) |
| Single-B | 8.27% | 329 bps | 254 to 486 bps (low Nov 14, 2024; high Apr 7, 2025) |
| CCC and lower | 17.02% | 1215 bps | 690 to 1215 bps (low Jan 23, 2025; high Oct 1, 2026) |
| High yield composite | 8.22% | 324 bps | 259 to 461 bps (low Jan 22, 2025; high Apr 7, 2025) |
ICE BofA US Corporate (AAA to BBB) and US High Yield (BB to CCC) index effective yields and option-adjusted spreads, from the Federal Reserve Bank of St. Louis (FRED), as of October 1, 2026. The range covers the daily history FRED currently publishes for these series, which begins October 3, 2023. Updated each business day.
Rates Backdrop
The effective federal funds rate is 3.88%, −21 bps from a year earlier, while the 10-year Treasury yield is 5.24%, +112 bps over the same period. When long-term Treasury yields move independently of the policy rate, the drivers are usually expectations for growth and inflation, the supply of Treasury debt, and the extra return investors demand for holding long maturities. Ten-year breakeven inflation, the market’s implied inflation rate, is 2.36%.
For corporate bond investors, the 10-year Treasury yield is the base on which credit spreads are added, so its moves account for much of the change in corporate bond prices from day to day.
The Spread Environment
The investment grade index spread of 86 bps compares with 76 bps a year earlier and a range of 73 bps to 133 bps over FRED’s published history. When spreads start narrow, there is little room for them to tighten further and more room to widen, so returns above Treasuries depend mostly on the extra yield earned over time rather than on price gains from tightening. Defaults among investment grade issuers have been rare: in S&P’s 1981 to 2024 study the average one-year default rate for investment grade issuers was 0.08%.
Supply: Technology Borrowers
The largest technology companies have become some of the biggest borrowers in the investment grade market as they finance data centers. Meta Platforms sold $30 billion of bonds on October 30, 2025, one of the largest corporate bond sales on record; Oracle sold $18 billion in September 2025, Alphabet $17.5 billion in the U.S. market in November 2025, and Amazon $15 billion in November 2025. Heavy supply from a few issuers can push their spreads wider than those of similarly rated companies and concentrates the index in a handful of names.
Sector Positioning
Defensive sectors (health care, utilities, consumer staples) tend to hold up better when growth slows; cyclical sectors (energy, industrials, consumer discretionary) carry more sensitivity to the economy. Banks are large issuers whose credit depends on capital, funding, and regulation, and REIT bonds respond to property values and refinancing costs. The full sector treatment is in the investment grade corporate bonds sector playbook.
The Quality Ladder
Moving down the rating scale adds yield. Today the BBB index yields 35 bps more than the A index and 39 bps more than the AA index; its spread is 33 bps wider than A. Whether that extra yield is worth it depends on expected losses. A useful way to frame it is expected loss = probability of default × loss given default. Losses on a defaulted bond depend on recovery, which varies with seniority, collateral, and the restructuring, so a default is rarely a total loss but can be a large one. BBB issuers also carry the risk of a downgrade to high yield, which can force some holders to sell.
The bond ratings chart covers agency definitions and S&P’s long-run default rates.
Maturity and Duration
Yields and spreads by maturity today:
| Maturity (ICE BofA US Corporate index) | Effective yield | Option-adjusted spread |
|---|---|---|
| 1 to 3 years | 5.34% | 58 bps |
| 3 to 5 years | 5.74% | 77 bps |
| 5 to 7 years | 5.94% | 89 bps |
| 7 to 10 years | 6.19% | 105 bps |
| 10 to 15 years | 6.38% | 102 bps |
| 15 years and longer | 6.65% | 103 bps |
ICE BofA US Corporate index maturity sub-indexes, effective yield and option-adjusted spread, from the Federal Reserve Bank of St. Louis (FRED), as of October 1, 2026. For reference, the 10-year Treasury yield was 5.24% on October 1, 2026. Updated each business day.
Longer maturities usually pay more but carry more interest rate risk. Duration estimates that sensitivity: a bond with a duration of 7 years loses roughly 7% of its value if yields rise one percentage point, before the income earned. The right mix of maturities depends on when the money is needed and on tolerance for price swings. A ladder or an allocation concentrated in intermediate maturities is one common approach; any such allocation is illustrative, and risk-adjusted results depend on the investor’s objectives, assumptions, and the period measured. See bond duration.
Illustrative Return Scenarios
The table estimates one-year total return for a portfolio that starts at the current ICE BofA US Corporate Index yield of 5.99% with an assumed duration of 7 years, using return ≈ starting yield − duration × change in yield. It ignores convexity, reinvestment, and changes in the shape of the curve.
| Scenario (illustrative) | Change in index yield over the year | Approximate one-year total return |
|---|---|---|
| Yields fall 1.00 point | −1.00 | 12.99% |
| Yields fall 0.50 point | −0.50 | 9.49% |
| No change | 0.00 | 5.99% |
| Yields rise 0.50 point | +0.50 | 2.49% |
| Yields rise 1.00 point | +1.00 | −1.01% |
The starting yield provides income, but it is not a floor on total return: a large enough rise in Treasury yields or widening in credit spreads produces a loss. These are illustrations, not forecasts.
Risk Factors to Watch
- Rising long-term yields. Higher Treasury yields lower bond prices across the market.
- Spread widening. A slowdown or a shock to risk appetite can widen credit spreads from narrow levels.
- Concentrated supply. Heavy borrowing by a few large issuers can pressure their spreads and the index.
- Inflation. A rise in inflation expectations tends to push yields up.
- Private credit and bank exposure. Stress in private lending markets could spill into banks and public credit.
For Investment Grade Real Estate Investors
Corporate bond yields are a benchmark for cap rates on credit-backed real estate, but not a formula. A net lease cap rate also reflects location, lease term, rent increases, the lease obligor, and illiquidity. Today the median asking cap rate on Dollar General listings is 7.00% against a BBB bond index yield of 6.19%, a spread of +81 bps, while McDonald’s listings ask a median of 4.00%, below the same index. The bond-to-NNN spread table shows every tenant.
For Owners on the Other Side of the Trade
Commercial mortgage rates are typically set as a spread over Treasury yields, so the moves above change refinance costs. If you own a single-tenant net lease property with a loan maturing, tell us about your loan maturity and we will review refinance and sale options with you.
Frequently Asked Questions
What are investment grade bond yields today?
As of October 1, 2026, the ICE BofA US Corporate Index yielded 5.99%. By rating category: AAA 5.81%, AA 5.80%, A 5.84%, and BBB 6.19%. The index yield peaked at 6.44% on October 19, 2023 in the history FRED publishes.
Are investment grade credit spreads attractive?
The index spread is 86 bps, in the lower part of its range of 73 bps to 133 bps since October 3, 2023. Narrow spreads mean investors are paid little extra for credit risk, even though total yields are high because Treasury yields are high.
Can investment grade bond funds lose money in a year?
Yes. In 2022 the Bloomberg US Corporate Index lost about 15.8% as interest rates rose, according to fund prospectuses filed with the SEC. A positive starting yield cushions returns but does not prevent losses when yields rise enough.
How much more do BBB bonds pay than A-rated bonds?
Today the BBB index yields 35 bps more than the A index. Whether that is enough depends on expected losses, which combine default probability and recovery, and on the risk of a downgrade to high yield.
How do investment grade bond yields relate to NNN cap rates?
Bond yields are one benchmark for net lease cap rates, but cap rates also reflect location, lease term, rent increases, the lease obligor, and illiquidity. The spread varies widely by tenant, from below zero for many ground leases to more than one percentage point for some discount retailers.
Continuing Your Research
- Investment Grade Bonds: Issuers, Yields, and Ratings
- Investment Grade Corporate Bonds: Sector Playbook
- Credit Spreads Explained
- Bond Ratings Chart: S&P, Moody’s and Fitch
- Moody’s Investment Grade Ratings
- Investment Grade vs. Non-Investment Grade Bonds
- Investment Grade Bonds vs. NNN Real Estate
- NNN Cap Rates 2026
Educational content only. InvestmentGrade.com is a commercial real estate brokerage and educational publisher. We do not sell, broker, underwrite, or solicit any bonds, securities, or investment products. Yields, ratings, and prices referenced fluctuate continuously and are sourced from public market data as of the date noted. Nothing on this page constitutes investment advice, an offer to sell, or a solicitation to buy any security. Consult a licensed broker-dealer, registered investment advisor, or tax professional before making any investment decision. For SEC investor education, visit investor.gov.
