At yahoo finance (and similar) I can download historical data such as the open, close, high, low, volume. Are the prices the bid or the ask price? I can't track the info down so far and was hoping someone on here knew the answer.
Normal OHLC quotes refer to trade prices, not bids or asks. As you note in a comment, the volume listed also reflects actual trades. True, each trade typically occurs at either the current bid or the current ask, but there are also bids and asks that do not result in trades. The less liquid the stock, the greater the possible range of bids and asks that are not reflected in the OHLC.