Investment simulation · education only

Your psychology is costing you money.

Answer 3 questions. See exactly how much — based on your specific behavioural profile, in simulated SPY performance over 5 years.

You're offered a coin flip: heads you win $150, tails you lose $100. Do you take it?

Expected value is positive — but that's not always what it feels like.

You invested $10,000 six months ago. Today it's worth $8,500 (−15%). What do you do in the next 24 hours?

No right answer. This reveals how you actually respond — not how you think you should.

A stock has gone up every month for the last 6 months. What do you think happens next month?

This measures whether you extrapolate trends — one of the most common and costly biases.

Your investor DNA

Loss aversion –

Panic threshold –

Recency bias –

Holding endurance –

This is a simulation based on historical SPY performance, not a prediction of your future returns.

No credit card. No payment. Your profile is saved free.

Add up to 4 assets to compare

Add an asset above to see your personalised simulation

Consequence sandbox

Add assets to build your allocation

Next best action

Add assets to see personalised simulation actions.

Save your simulation and profile — it's free

Create a free account to save up to 10 analyses, track how your thinking evolves, and see your Decision Mirror build over time.

No credit card. No payment required.