Evolution

/evolution reads everything you own, over everything you hold history for: the two charts and the three figures on it all answer how has my wealth moved, and what is it made of. The dashboard asks the same question over a window you choose; this page never asks it over anything but the whole history.

There is nothing to set. No period chips, no category filter, no gross-and-net switch. The page draws what it has, and a point on either chart is the last day of a month.

The three figures

Figure	What it says
Current net worth	What you are worth today, the same figure the wealth screen shows.
Change over the period	What the history earned, with your own payments in and out taken out of it.
Largest drawdown	The worst fall from a peak the curve ever took.

The middle figure is not the climb of the curve

The curve rises when you pay money in. Change over the period does not: contributions are neutralised, each one weighted by how long it was invested, so what is left is what the money did rather than how much of it you added. It is the one definition of performance in the product, and Performance reads it the same way. The percentage is left out when there is nothing to divide by.

The drawdown is measured on the net worth, so a withdrawal counts as a fall like any other. It is blank until the curve has been above zero: someone who started with a mortgage and nothing else is not told they are at a peak.

Allocation drift

The first chart is a hundred-percent stack: each band is one of the ten wealth categories, and the height of a band is its share of what you own that month. It answers what Accounts answers for today, over the years instead.

Two things about the shares. Only a category you have held something in at some point is drawn at all, so the chart carries no empty band. And the shares are taken on your gross assets: a loan or an overdraft is a negative share, which a stack cannot draw, so liabilities are left out of this chart and read on the next one.

Portfolio evolution

The second chart stacks Cash and Securities under a Net worth line. Cash is your current accounts and savings books; Securities is everything else you own: shares and funds, but crypto, property, crowdlending and objects too. The hover adds Loans and debts as a negative when you carry any, which is why the stack can stand taller than the net line.

A dashed segment with a hollow point marks a day recorded while at least one holding had no price: the figure for that day is understated rather than wrong, and the legend says so whenever the curve carries one. A note under the chart counts those days, and Rebuild the missing history goes back over them with the prices it can fetch now. A second note counts the days rebuilt from a price but with today’s quantities, for want of a dated lot. Those describe a portfolio you may not have held yet.

Before there is a curve

The page is empty until an instance has recorded its first daily point, which happens overnight. Until then it says so, and offers the way to the only thing that fills it: an account with a value in it. The curve reads after a few months rather than after a few days.