Educational simulationData as of 2026-06-16

£10,000 becomes a 20-stock pie with 54% held in cash.

Built by the frozen ranker for a target of β0.75 — the risk level you choose below. Every number here is a historical characterisation of these weights, never a forecast.

Invested
£4,642
across 20 stocks
53.6%
£5,358
0.75
target 0.75
0.78
return per unit of risk
-23.6%
worst peak-to-trough fall
£
Simulated. No money moves.
0.00max achievable long-only 1.891.85
53.6%£5,358Invested £4,642 across 20 stocks

Your pie

Click a slice to see why it's held
PODD — 3.4% · £340BSX — 3.2% · £323CSGP — 3.1% · £307UAL — 2.6% · £264CCL — 2.6% · £258CHTR — 2.6% · £257TTD — 2.5% · £246SATS — 2.4% · £243CVNA — 2.4% · £241ALB — 2.4% · £236NCLH — 2.4% · £235VRT — 2.2% · £220HOOD — 2.0% · £202MRNA — 2.0% · £201STX — 2.0% · £198COIN — 1.9% · £193WDC — 1.8% · £183COHR — 1.8% · £176MU — 1.7% · £171LITE — 1.5% · £147Cash — 53.6% · £5,358CashInvested£4,64220 stocks · 53.6% cash
  • PODD3.4%£340
  • BSX3.2%£323
  • CSGP3.1%£307
  • UAL2.6%£264
  • CCL2.6%£258
  • CHTR2.6%£257
  • TTD2.5%£246
  • SATS2.4%£243
  • CVNA2.4%£241
  • ALB2.4%£236
  • NCLH2.4%£235
  • VRT2.2%£220
  • HOOD2.0%£202
  • MRNA2.0%£201
  • STX2.0%£198
  • COIN1.9%£193
  • WDC1.8%£183
  • COHR1.8%£176
  • MU1.7%£171
  • LITE1.5%£147
  • Cash53.6%£5,358
max 8% per stock · max 30% per sector · ≤5 stocks per sector · risk-balanced sizing

Why this holding

Click any slice to see why it's in the pie.

What happens after you invest?

You buy the target pie, then prices move. By the next rebalance your weights are no longer the ones you chose — winners grow, losers shrink, and cash holds still. Below is one rebalance period of real price history applied to today's weights. Rebalancing sells a little of what grew and tops up what shrank, to put the pie back on target.

Period ending 2026-06-30. Changes are in percentage points of weight — not gains or losses.
WDC+0.49pp
MRNA+0.33pp
TTD-0.32pp
STX+0.32pp
CCL+0.23pp
NCLH+0.23pp
COIN-0.22pp
SATS-0.18pp
ALB-0.15pp
VRT-0.13pp
BSX-0.12pp
CVNA-0.12pp
Cash53.6%53.1%-0.53pp
How honest is this?5 things to know

Growth of £10,000

£7k£13k£19k202120222023202420252026
This pieSPY (equal-weight S&P-500 proxy — SPY not in offline panel)

Drawdown — how far it fell from its peak

0%-24%202120222023202420252026

Shaded area is the fall from the pie's previous peak. The line sits at zero whenever the pie is at a new high, so every dip below it is a loss you would have had to sit through.

0.78
return per unit of risk
-23.6%
worst peak-to-trough fall
0.75
target 0.75 · ≈β 0.57 inside the drawdown window

Between 2021-08-31 and 2022-12-31 — the pie's worst stretch — its realised beta was 0.57, against a headline 0.75. A beta estimated over calm months is not a promise about how it behaves in a fall.

Measured beta drift (2022 bear): across the committed history this pie's realised beta was about β0.26 in calm months but about β0.71 in the 6-month drawdown core of the 2022 bear — the target-beta estimate understates risk exactly when it matters. Single stress episode, in-sample characterisation — directional, not a forecast.

These are the limits of what the numbers above can tell you. Tap any line for what it means in practice.

Pie built from data as of 2026-06-16. Benchmark: SPY (equal-weight S&P-500 proxy — SPY not in offline panel).