Open, high, low and close — the four prices that summarise a period of trading.
Last verified 13 September 2026 · written by the DexLadder team
What it means
Open, high, low and close — the four prices that summarise a period of trading.
Why it matters when you trade
Nearly every indicator you will ever use is a function of these four numbers, so understanding what they discard matters: OHLC keeps no sequence within the bar. A bar that rose then collapsed and one that collapsed then rose can print identically. This is exactly where naive backtests go wrong, assuming a stop and a target hit in whichever order flatters the result.
Worked example
A backtest that assumes the target was reached before the stop on a wide bar can invent an entire equity curve.
See it on live markets
DexLadder runs ohlc against live market and pool data, with simulated capital, so you can watch it act on an order instead of reading about it — no account, no wallet, nothing installed.