Hi - I got an inquiry asking about tape reading, and wondering if patterns are easier to detect in thinly traded stocks, making them better or not to trade.

My reply is that no, I never trade thinly traded stocks because the danger of manipulation and hidden order flow (that isn't on the tape) associated with thinly traded stocks make them bad to trade (as defined as less than 15k shares per minute volume).

In fact we use tape reading best with stocks that have solid liquidity and volume, heavily traded ones with a minimum of 15-20k shares per minute, Because they show patterns in transaction buy/sell pressure best.