The hammer is a single candlestick chart pattern that gives a bullish reversal indication. It receives its name from its resemblance to a hammer. The candle's small body sits atop a long wick (shadow). Many traders believe that in order for the handle to be legitimate, the lower wick that creates it must be at least double the size of the upper body. The body should be placed on top of the wick, with a level top and little to no higher wick. Hammers have a stronger probability of becoming a dependable reversal indicator when discovered on a downtrending chart. The shorter wick indicates an intraday sell-off followed by a reversal to close around the day's highs, implying that sellers were rejected at lower levels and that purchasers finally seized control of the market throughout the day. The close proximity of the opening and ending prices suggests that the negative intraday volatility has been rejected, suggesting the end of lower lows in the downtrend.