Bio-Rad Laboratories Inc. is a life sciences company with sales of over $1.7 billion. 
In May of 2009, it issued $300 million of 7-year notes in a 144A offering through Credit Suisse. The company refers to the new debt as Senior Subordinated Notes. Does this mean the debt is senior or subordinated? How do we know the intercreditor priority of the notes?
Contractual Subordination
The notes are governed by an indenture, a contract signed by the borrower and by a trustee (in this case, Wells Fargo) who represents the noteholders. In addition to describing the notes and listing various covenants and defaults, the indenture includes a section on subordination. In that section, the noteholders agree that in the event of the borrower’s bankruptcy or a payment default on the borrower’s senior debt (or certain other events), the borrower will not make any payments on the notes until the default is cured or the senior debt is repaid in full. This arrangement is referred to as contractual subordination (see also our entries on structural subordination and effective subordination).
The Details Matter
The document creating contractual subordination can be a subordination agreement or indenture (as with Bio-Rad, and commonly used for public bonds and 144A issues), or an intercreditor agreement, which is more common with mezzanine finance and other privately placed subordinated debt. The terms of subordination vary from agreement to agreement. For example, the ability of subordinated debtholders to receive payments after a covenant breach in the senior debt can vary, as can the amount and type of allowable senior debt. Finally, the term senior subordinated debt (which is common for high yield bonds) means that the bonds are subordinated to all senior debt (typically bank loans) but it is senior to any junior subordinated debt (typically, mezzanine finance).
Who Issues Subordinated Debt, and Why?
Subordinated debt is more expensive than senior debt, so why would a company issue it? The big issuers of subordinated debt are:
- Non-investment grade companies, who often need more debt or longer-term debt than the senior market will provide, and
- Regulated entities, such as banks, insurance companies and electric utilities, who issue subordinated debt instead of equity in order to satisfy their regulatory capital requirements.