Wealth Engine

Stress-test your wealth.

Powered by the mathematical frameworks used by major insurers and investment banks, Prometheus exposes the hidden tail risks and the inter-dependencies that can break a portfolio in a crisis.

27
Calibrated risk factors
351
Correlation pairs
50 years
Empirical data
1,000,000
Paths per simulation
01 · See your real distribution

A linear projection is not a forecast.

Market moves are not normally distributed, inflation shocks are not static and your wealth does not move in a symmetrical bell curve. Treating linear projections as a forecast is a systemic failure of risk planning. Prometheus applys rigorous non-linear frameworks to chart the full density of your net worth and reveal how your portfolio reacts when the storm hits.

Density of year-end wealthWhat naive models hide
£150k£200k£250k£300k£350k£400kNAIVE THIN TAILEDFAT TAILED · REALFat tails on aggregated risks
02 · Find what concentrates in the tail

Quantify the dark horizon.

Tail Drivers isolate the worst outcomes and rank every factor by how much risk they carry, market drawdowns, inflation surges, yield shocks, even your life risks. You stop guessing what's risky and see what actually brakes you.

Tail DriversWhat concentrates in your bottom 1%
SP500 equity
-2.34σ
Inflation (1Y)
+1.82σ
UK 10Y yield
+1.45σ
UK property
-1.31σ
Career loss
+1.08σ
USDGBP
-0.62σ
03 · Test counterfactuals

What if I shift £100K? Insure a risk? Rebalance my portfolio?

Pull a lever and Prometheus re-calculates on the same one million paths in milliseconds, no re-simulation, no guesswork about whether the new answer is comparable to the old one. See the exact shift across your wealth distribution percentiles.

What-If LeversShift cash → equities: +£100K
£150k£200k£250k£300k£350k
Baselinemedian £260k · p5 £190k
+£100K → equitiesmedian £282k +£22k · p5 £175k -£15k
04 · Model the unthinkable

Prepare for the catastrophes that aren't in the markets.

Market drawdowns aren't your only risk. Prometheus models personal catastrophes, structural damage, sudden job loss, acute medical events, legal liabilities, with frequency and severity distributions and the insurance policies that absorb them, embedded in the same correlated million-path simulation.

Personal Catastrophe LedgerFrequency, Severity, netted by policy
Structural fire
Frequency1 every 25 yearsSeverity£8k – £180k
Home cover · £250k
Career loss
Frequency1 every 8 yearsSeverity£15k – £45k
Severance · 0.6×
Acute medical event
Frequency1 every 15 yearsSeverity£3k – £30k
Health · £20k cap
Legal liability
Frequency1 every 30 yearsSeverity£5k – £40k
Uncovered
Each risk fires stochastically across the million paths. Insurance policies absorb losses up to cover limit, net of deductible, with recoverable × attributable capturing partial recoveries.
05 · How risks propagate

Risks don't move alone.

When equities collapse, currency weakens, inflation surges, and unemployment rises together. Prometheus calibrates the full dependency matrix from decades of joint historical data; every simulated path inherits these systemic co-movements. A single market shock ripples through your career, your property, and your portfolio in a single draw. This structural realism is what makes our left tail statistically accurate, not just conservative-by-luck.

Calibrated Correlation Matrix27 factors · 351 pairs
SP500
FTSE
USDGBP
UK 10Y
US 10Y
UK Infl
UK Prop
Career Loss
SP500
1.00
0.63
-0.26
0.06
0.14
0.16
0.13
-0.22
FTSE
0.63
1.00
-0.17
0.36
0.45
0.58
0.14
-0.12
USDGBP
-0.26
-0.17
1.00
-0.15
-0.23
-0.12
-0.21
0.15
UK 10Y
0.06
0.36
-0.15
1.00
0.68
0.67
0.13
-0.12
US 10Y
0.14
0.45
-0.23
0.68
1.00
0.46
0.15
-0.21
UK Infl
0.16
0.58
-0.12
0.67
0.46
1.00
0.25
-0.17
UK Prop
0.13
0.14
-0.21
0.13
0.15
0.25
1.00
-0.32
Career Loss
-0.22
-0.12
0.15
-0.12
-0.21
-0.17
-0.32
1.00
Read across the Career Loss row: when unemployment spikes, UK property falls (-0.32), US equity falls (-0.22), and sterling weakens (+0.15). These joint moves travel through every simulated path, they're the difference between a tail event and an unrelated dice-roll.

Built for those who measure twice.