Commercial Paper
Commercial paper (CP) is an unsecured, short-term debt instrument issued by corporations, financial institutions, and sovereign entities to finance working capital needs, typically with maturities ranging from overnight to 270 days. Because it is issued at a discount to face value and matures at par, commercial paper functions as a money market instrument closely tied to prevailing short-term interest rates.
Key takeaways
- Commercial paper maturities are capped at 270 days in the U.S., allowing issuers to avoid SEC registration requirements under the Securities Act of 1933.
- It is predominantly issued by high-credit-quality entities; below-investment-grade issuers rarely access the CP market due to investor mandates.
- Asset-backed commercial paper (ABCP) is backed by pools of receivables or other financial assets and was a major flashpoint during the 2007–2008 financial crisis.
- Money market funds are the dominant buyers of commercial paper, providing issuers with a stable, price-sensitive investor base.
- CP rates — particularly the A2/P2 non-financial CP spread over Treasury bills — are closely watched as indicators of financial stress.
Explanation
Commercial paper is the archetypal money market instrument, sitting at the intersection of corporate funding and liquidity management. Corporations use it to bridge mismatches between cash inflows and outflows — a retailer might issue CP to fund inventory buildup ahead of the holiday season, expecting to repay from post-holiday cash flows. Financial institutions, particularly bank holding companies, issue CP as a low-cost complement to other short-term funding sources.
The U.S. commercial paper market, which traded approximately $1.1 trillion outstanding as of 2024, is bifurcated into financial CP (issued by bank holding companies, insurance companies, and broker-dealers) and non-financial CP (issued by corporations). A third category, asset-backed commercial paper (ABCP), is issued by structured vehicles (conduits) and backed by pools of assets such as trade receivables, auto loans, or credit card receivables. ABCP conduits typically obtain a liquidity backstop from a bank sponsor, which is what creates systemic risk — when ABCP markets froze in August 2007, banks were forced to absorb off-balance-sheet assets onto their balance sheets.
Pricing of CP is quoted as a discount rate or as a yield equivalent. The discount rate formula is: Discount = Face Value × (d/360) × (Days/360), where d is the annualized discount rate. To convert to a bond-equivalent yield: BEY = (360 × d) / (360 − d × Days). In practice, CP spreads over comparable Treasury bills compress during risk-on environments and widen sharply during financial stress, making the CP–T-bill spread a real-time barometer of funding market conditions. The Federal Reserve monitors this spread closely and has intervened in the CP market during crises (most notably via the Commercial Paper Funding Facility in 2008–2009 and again in 2020).
Formula
Bond-Equivalent Yield = (360 × d) / (360 − d × Days)
Example
Apple Inc. issues $2 billion in 90-day commercial paper at a discount rate of 5.30%. The proceeds Apple receives are: $2,000,000,000 × (1 − 0.0530 × 90/360) = $2,000,000,000 × 0.98675 = $1,973,500,000. Investors holding to maturity receive face value of $2 billion, earning $26.5 million in interest over 90 days. The bond-equivalent yield is (360 × 0.0530) / (360 − 0.0530 × 90) = 19.08 / 355.23 ≈ 5.37%. A money market fund purchasing this paper records a 90-day holding period yield of approximately 5.37% on an annualized basis.
Related terms
Asset Backed Security Basis Bond Credit Spread Discount Rate Duration Face Value Junk Bond Liquidity Pv01 Systemic Risk Working Capital