Stay Invested Calculator

Daily simulation of staying invested vs. selling during a drop and re-entering later.

1) Portfolio & Period

£
Upload CSV (two columns: date, daily return)

Accepted: .csv. Col 1 = date (DD/MM/YYYY, DD-MM-YYYY or YYYY-MM-DD), Col 2 = daily return (decimal or %).

2) Exit (Sell) Rule

3) Re-entry (Buy Back) Rule

Results (Final Value)

Stay Invested
Sell & Re-enter
Difference

Pick a dataset and click “Run Simulation”.

Portfolio Value Over Time