OLNEST

How markets work

Adjusted close

A historical closing price restated to account for dividends and splits, so returns compare fairly over time.

How it works

Raw historical prices are misleading. A share that split two-for-one appears to halve overnight; one that paid a large dividend appears to drop. Neither is a loss to the holder.

The adjusted series removes those artefacts, so a chart of adjusted closes shows what an investor actually experienced. Every serious return calculation uses it.

Where it misleads people

Adjusted and unadjusted series answer different questions. A chart of adjusted prices will not match the price you paid five years ago, and treating it as a record of past quotes leads to nonsense conclusions about "old" price levels.

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Educational reference only. Nothing here is investment advice or a recommendation to buy or sell anything, and tax treatment depends on your own circumstances and the country you are in.