Commercial Paper Explained

Commercial paper is a short-term, unsecured debt instrument issued by large corporations, banks, and other institutions to raise funds for immediate working capital needs, typically maturing in anywhere from a few days up to 270 days. As one of the largest and most liquid segments of the short-term money markets, commercial paper plays a central role in how large institutions manage day-to-day funding and how money market funds invest the cash entrusted to them by investors.

Why issuers use commercial paper

For large, well-rated corporations and financial institutions, commercial paper offers a cheaper source of short-term funding than drawing on a bank credit line, since it allows the issuer to borrow directly from institutional investors in the capital markets rather than paying a bank's lending margin. Issuers typically use commercial paper to fund short-term needs such as seasonal working capital fluctuations, payroll, or bridging finance ahead of a longer-term funding transaction, rolling over (reissuing) maturing paper as needed to maintain an ongoing funding programme, rather than treating each issuance as a one-off transaction.

Credit quality and the role of ratings

Because commercial paper is unsecured and typically issued without the detailed covenant protections found in longer-term bonds, access to the commercial paper market is generally limited to issuers with strong credit quality, reflected in short-term credit ratings from agencies such as Moody's, S&P, and Fitch. Investors, including money market funds, which are themselves subject to strict regulatory limits on the credit quality and maturity of what they can hold, rely heavily on these short-term ratings when deciding which issuers' commercial paper to buy, making a downgrade below the minimum rating threshold that qualifying money market funds require a serious event for an issuer, since it can abruptly cut off access to a significant funding source.

Asset-backed commercial paper as a distinct segment

A related but distinct segment of the market is asset-backed commercial paper (ABCP), issued by special purpose vehicles backed by pools of underlying assets rather than relying purely on the unsecured creditworthiness of a corporate issuer. ABCP played a significant role in the 2008 financial crisis, when investor confidence in the underlying asset pools backing some ABCP programmes collapsed, causing a sharp contraction in that segment of the market that had broader knock-on effects for short-term funding markets generally.

The commercial paper market during periods of stress

Commercial paper markets have historically proven vulnerable to sudden freezes during periods of acute financial stress, since the market depends on investors' continued willingness to roll over very short-dated paper based on confidence in issuer creditworthiness, confidence that can evaporate quickly during a crisis even for fundamentally sound issuers. This vulnerability has prompted central bank intervention on several occasions, including dedicated commercial paper purchase facilities established by the US Federal Reserve during both the 2008 financial crisis and the 2020 pandemic-driven market stress, specifically to keep this critical short-term funding channel functioning when private investor demand temporarily dried up.

FAQ

Is commercial paper the same as a corporate bond?

No — commercial paper is a short-term instrument, typically maturing within 270 days, while corporate bonds are longer-term instruments, often with maturities of several years or more, and typically include more detailed covenant protections.

Who buys commercial paper?

Primary buyers include money market funds, corporate treasury departments investing surplus cash, and other institutional investors seeking a safe, liquid, short-term place to park cash while earning a modest yield.

Can smaller companies issue commercial paper?

Generally not practically — the market is dominated by large, well-rated issuers, since the short-term rating requirements that most institutional buyers rely on are typically out of reach for smaller or lower-rated companies.

Finance professionals studying money markets and corporate treasury can build this expertise through Learnsignal's CPD courses, which cover short-term funding markets in depth.

How commercial paper is priced and issued

Commercial paper is typically issued at a discount to its face value rather than carrying a stated coupon, with the investor's return coming from the difference between the discounted purchase price and the full face value received at maturity, similar in structure to how short-dated Treasury bills are priced. Issuance is usually arranged through a dealer, often a large bank, which helps place the paper with institutional investors, though some very large, frequent issuers run direct issuance programmes without a dealer intermediary. Because of its short maturity, commercial paper pricing is highly sensitive to prevailing short-term interest rates and to any change in market perception of the specific issuer's credit quality, with yields adjusting quickly to reflect current market conditions given how frequently paper needs to be rolled over.

Backup liquidity facilities

Because commercial paper relies on investors continuing to roll over maturing paper, most issuers maintain backup liquidity facilities, typically committed bank credit lines that can be drawn if the issuer is temporarily unable to roll over its commercial paper in the market. These backup facilities are a standard feature of a well-structured commercial paper programme, providing a safety net against a short-term disruption in market access, and rating agencies typically expect to see adequate backup liquidity in place as part of their assessment of an issuer's commercial paper programme, since a programme without credible backup liquidity is considered meaningfully riskier for investors.

A distinct segment of the market, asset-backed commercial paper, is backed by a specific pool of underlying assets rather than an issuer's general unsecured creditworthiness, and played a significant role in how the 2008 financial crisis unfolded.