What is an OHLC chart?
An OHLC chart is anythat shows the open, high, low and close of a certain time period.
and are both examples of OHLC charts. The most popular being the candlestick charts. Here, the wider bodies of the candles show the open and close prices of the period. And the wicks — the lines on top and bottom of the candles — show the lowest and highest prices during the period.