Guide · Reading your portfolio

Market value, exit value, cost — what the three numbers in your portfolio actually mean.

A tracker shows what you hold. It rarely shows what an exit would net, and almost never what the holdings actually cost you. This guide explains the three numbers a portfolio can honestly carry — what each one means, where it comes from, and why they are deliberately kept apart.

Read-only aggregation first

The first step isn’t a registration, it’s an address: pasting a public wallet address is enough to see its EUR value across the major EVM chains — Ethereum, Base, Polygon, Arbitrum, Optimism and BSC among them. The result is computed, shown, and forgotten; nothing is stored.

One honesty rule shapes everything downstream: positions only count toward the headline once they are verified against a real market. Spam tokens that reuse legitimate tickers are excluded and disclosed separately — a missing number beats a lying number.

Try it on a wallet address →

Market value vs. exit value

Market value is holdings times reference price — a clean description, but a price nobody sells a whole position at. Exit value answers the other question: what would come out, net, if the actual amounts were sold through the live orderbooks right now — after fee and spread, with the range from the best to the weakest measured venue as a second figure.

The bigger the position and the thinner the market, the further the two numbers drift apart — the same orderbook effect the hidden-fees guide describes for a single trade, applied to the whole portfolio. Both are descriptions of the present state, not a prompt to act. The per-position breakdown through the live orderbooks is part of Pro.

Cost basis and unrealised P/L

The third number looks backward: what did the holdings cost? Skontro computes a jurisdiction-free moving-average cost basis from your imported history — buys and sells, rewards at fair market value, matched self-transfers kept neutral. Unrealised P/L is then simply current value minus that basis.

The honest part is the coverage rule. P/L is only computed over the quantity your imported history actually covers; where history is missing, the position says “Unknown — add basis” instead of pretending a cost of zero, which would inflate the full proceeds into fake profit. A partially covered position carries its coverage share visibly. The number is conservative by construction, and it says so.

The history line — and what the 24h number is not

Skontro records an hourly snapshot of portfolio value — that becomes the history line on the desk. Free shows 7 days of history, Pro 365. The 24-hour figure next to it is labelled precisely, because precision is the difference between a number and a story: it is a value change, including deposits and withdrawals — not a return. Money arriving looks like a gain and money leaving looks like a loss; the label keeps you from reading performance into cashflow.

The same product-wide rule applies here as everywhere: every number carries its data provenance, and a missing number beats a wrong one.