Free Broker Tool

Stress Test Calculator

Model portfolio performance under adverse scenarios: doubled defaults, tripled defaults, and economic contraction.

100% Free

No Sign-Up Required

Instant Results

Why Stress Test Your Portfolio?

Stress testing models what happens to your portfolio under adverse conditions -- specifically, what if defaults double or triple from current levels? This is not paranoia; it is risk management. In 2020, MCA default rates spiked 2-3x almost overnight when COVID hit. Portfolios that had never been stress-tested suffered catastrophic losses. Portfolios whose managers had stress-tested and maintained adequate reserves survived. The stress test answers three critical questions: (1) At what default rate does my portfolio break even? (2) How much do I lose if defaults double? (3) How large a reserve should I maintain? Every ISO, syndicator, and funder who deploys capital should run stress tests quarterly.

How to Use This Calculator

Enter your portfolio basics

Total funded amount, average factor rate, and current default rate. These define your baseline performance.

Review the stress scenarios

The calculator shows net return at current, 2x, and 3x default rates. It also calculates the breakeven default rate -- the point where your portfolio generates zero net return.

Set your reserve target

The recommended reserve is enough to cover the gap between current and 2x default scenario while maintaining positive cash flow. This is your rainy-day fund for portfolio management.

Key Concepts

Stress Scenario

A hypothetical adverse condition used to test portfolio resilience. Common MCA stress scenarios: 2x defaults (moderate recession), 3x defaults (severe crisis like COVID), and 50% collection efficiency (economic freeze).

Breakeven Default Rate

The default rate at which portfolio returns equal zero -- all profit from performing deals is consumed by losses on defaulted deals. Above this rate, the portfolio loses money on a net basis.

Reserve Adequacy

The cash reserve needed to cover losses in a stress scenario without disrupting operations. Typically calculated as the loss delta between baseline and 2x stress scenario.

Expert Insights

The Breakeven Number Is Your North Star: If your breakeven default rate is 22% and your current rate is 8%, you have a 14-point buffer before the portfolio goes red. That is healthy. If your breakeven is 12% and current is 8%, you only have a 4-point buffer -- a moderate economic downturn wipes out your margin. Knowing your breakeven tells you how aggressive you can be on deal selection and how much risk buffer you need.

Reserves Are Not Optional: The 2020 crisis taught every MCA operator the same lesson: reserves are not optional. Operators who maintained reserves equal to 10-15% of outstanding portfolio survived. Those who deployed 100% of available capital into deals had no buffer when defaults spiked and collections froze simultaneously. Maintain a reserve account equal to at least the difference between your baseline and 2x stress scenario. Treat it as untouchable except during actual portfolio stress.

Frequently Asked Questions

Quarterly at minimum. Monthly if your portfolio is growing rapidly or market conditions are uncertain. After any significant economic event (interest rate changes, industry disruptions, regulatory changes), run an immediate stress test with updated assumptions.

Plan for 3x your current default rate as a severe stress scenario. In 2020, MCA portfolios experienced 2.5-3x normal default rates. Some industry-concentrated portfolios (hospitality, entertainment) experienced 4-5x. If your current rate is 8%, stress test at 16% (2x) and 24% (3x).

A conservative reserve is the net loss under the 2x default scenario minus the net return under the baseline scenario. This ensures you remain solvent under moderate stress. For a $2M portfolio with 8% current default rate and 1.30 factor, this typically works out to 8-12% of total portfolio value ($160K-$240K).

Results are estimates for educational purposes only. Actual amounts may vary based on your specific financial situation, market conditions, and other factors. This calculator does not constitute financial advice.