Small caps and the refinancing wall nobody schedules around

It traded at 279.98 this morning, -0.14% on the session. The small-cap discount gets explained by growth, sentiment and passive flows. The simpler explanation is on the liabilities side.

Fixed versus floating

Large companies mostly issue long-dated fixed-rate bonds. When rates rise, their existing debt cost does not move. They term out, they wait.

Smaller companies borrow more through bank facilities and floating-rate loans, with shorter maturities. When rates rise, the interest cost rises now, on debt already outstanding. Same rate move, entirely different consequence.

That alone explains a good part of the performance gap, without needing any story about innovation or index concentration.

Why the discount may be fair

• A larger share of the index carries floating-rate or near-dated debt
• A meaningful minority does not cover interest from operating profit at all
• Refinancing lands on a schedule set years ago, into whatever market exists on the day
• The weakest constituents drag an index that many people own for its cheapness

A cheap index containing companies that cannot service their debt is not cheap. It is correctly priced with a wide dispersion inside it.

Why I am flat rather than short

The discount is explicable, which is different from being justified. Explicable discounts sometimes close, and shorting one is a poor use of risk.

If refinancing conditions ease, the same leverage that has been the problem becomes the reason it moves hardest. That asymmetry is why I will not be short, even though I am not buying.

What I am watching

Refinancing completions rather than announcements, and interest coverage across the index rather than at the median. The median has been fine throughout. The tail is where the story is, and the tail is what an index buyer owns whether they looked at it or not.