be greedy when others are fearful.
A hammer is a type of bullish reversal candlestick pattern, made up of just one candle, found in price charts of financial assets. The candle looks like a hammer, as it has a long lower wick and a short body at the top of the candlestick with little or no upper wick
If there's a higher volume of trading in a particular stock, that naturally means that investors are interested in buying or selling it. If volume and price are on the rise, it means investors are betting the company will do well. If volume is up but price is down, it means more investors are looking to sell.