How does a credit card master trust work and what is the revolving period?

Question

AcadiFi · Accepted Answer

Credit card ABS solve the revolving-receivable problem with a master trust structure. A single trust (e.g., Calderwood Master Trust) holds a continuously replenished pool of card receivables funded by multiple series of notes issued over time.

Two-phase cash flow for each series:

1. Revolving period (typically 3-5 years): Investors receive only coupon interest. All principal collections are used to buy new receivables, keeping the trust balance constant.
2. Amortization period (typically 12 months): principal collections flow to investors instead of being reinvested, amortizing the notes to zero.

Early amortization triggers accelerate the transition if performance deteriorates — e.g., excess spread falls below 0%, or delinquencies exceed thresholds. Triggers protect investors by converting a long-dated bond into a fast-paying instrument when collateral quality weakens.

Credit enhancement: senior/sub note structure plus spread account, usually funded from excess spread when triggers approach. Historically card ABS survived 2008 intact thanks to robust excess spread (8-12% annualized).

For FRM, focus on: (a) how seller/originator retained interest absorbs first losses, (b) how charge-off and payment rate metrics drive triggers, (c) legal bankruptcy-remote structure distinguishing receivables from originator insolvency.

How does a credit card master trust work and what is the revolving period?

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