Why Fast-Turning Loans Protected Affirm From Rate Spikes
Fraser Christie explains how Affirm used short-duration loans and split funding to survive the Fed rate hikes.
Affirm: The Next American Express (Audio)
With Patrick O'Shaughnessy, Fraser Christie · Sunday, October 25, 2026
Fraser Christie, founder and CIO of Sandstone Global Investment, analyzes Affirm's transition from a beaten-down post-IPO consumer lender into an internet-native payment network processing over $50 billion in GMV. The discussion explores Affirm's transaction-level underwriting, capital markets funding redundancy, competitive advantages over Klarna, and growth drivers including the Affirm Card and agentic commerce.
Key takeaways
- Affirm splits its loan funding 50/50 between off-balance-sheet facilities (forward flow and static ABS) and on-balance-sheet facilities (warehouse lines and revolving ABS). Read more →
- Affirm processes over $50 billion in annual gross merchandise volume while growing faster than 30 percent year over year. Read more →
- Interest-bearing installment loans generate 70% of Affirm's $50 billion in gross merchandise volume (GMV), powering the company's profitability. Read more →
- Half of US credit card holders carry a revolving balance, averaging $7,000 in compounding debt. Read more →
- Max Levchin incubated Affirm inside HVF a decade after leaving PayPal, targeting consumer credit after personal frustration with traditional credit bureaus. Read more →
5 articles from this episode
Fraser Christie on Why Affirm Is the American Express of the Web
Fraser Christie explains why Affirm functions as a closed-loop payments network like American Express, processing $50B with 95% repeat volume.
How Affirm Generates a 4% RLTC Margin on $50B in Volume
Fraser Christie explains Affirm's unit economics, showing why interest-bearing loans drive a 4% blended RLTC margin across $50 billion in GMV.
Affirm Underwrites the Cart, Not the Customer
Fraser Christie explains how Affirm beats credit cards by underwriting single purchases and retraining models every six months.
Max Levchin: Leaning into Hard Problems Built Affirm
Fraser Christie explains how Max Levchin used the HVF framework to build Affirm into a $50 billion payment network by tackling difficult credit problems.