Legend has it that the Japanese used technical analysis to trade rice as early as the 17th century. Although Charlie Dow didn’t come around until 1900 or so, a lot of the main principles were similar:
The “what” (price action) is more important than the “why” (news, earnings, and so on).
All known information is reflected in the price.
Buyers and sellers move markets based on expectations and emotions (fear and greed).
The actual price may not reflect the underlying value.
Steve Nison is the man when it comes to Candlestick charting. If you’ve never read his books, do yourself a favor and go read them immediately. According to Nison, candlesticks first appeared sometime around 1850. Much of the credit is given to a rice trader named Homma from the town of Sakata.
I use candlesticks religiously because visually we get the most information about a specific period of trading (daily, weekly, monthly, etc). Sometimes when I look at ratio charts, or if I simply want to eliminate some of the noise in a chart, I’ll look at a line chart of closing prices. Here is a good example of that: S&P500 Tests Important Trendline (Oct 11, 2012).
The reason I bring up candles today is not to go over their history, although it is pretty interesting. It seems like more frequently lately I’ve been getting asked about what the difference is between hollow candles and filled ones. Why is one color different than the other? As it turns out, I walk by fellow market participants’ trading screens and see that their candlestick settings are all off. Their charts aren’t providing them with the information that they’re looking for. And right on cue, Arthur Hill from Stockcharts.com puts out a post explaining this perfectly:
Candlestick colors and fillings tell chartists the story of the trading day. Colored candlesticks are made up of four components in two groups. First, a close lower than the prior close gets a red candlestick and a higher close gets a black candlestick. Second, a candlestick is hollow when the close is above the open and filled when the close is below the open. The table below shows the four combinations.
Each candlestick reflects the day’s price action. In particular, the hollow candlesticks tell us that a security moved higher after its open. A filled candlestick indicates that a security moved lower after the open. This is important information. Moving lower after the open reflects weakness, while moving higher after the open reflects strength.
Red-hollow and black-filled candlesticks also convey important information on price action. Take for instance the red-hollow (no, it’s not a bird). Even though the close was below the prior close (red), prices managed to move higher after the open (hollow). Despite closing lower on the day, there was some evidence of buying pressure during the day. The black-filled candlestick is the opposite. Even though the close was above the prior close (black), prices moved lower after the open (filled). Despite closing higher on the day, there was some evidence of selling pressure.
On my charts, I replace the color black with green. The information is the same, but since I use black backgrounds in my day-to-day charting, green just works better. Also, recognize the fact that Arthur hill uses this information for daily charts, but they can also be used across all time frames.
Check your settings in whichever charting software you’re using and make sure that your candles are giving you as much information as possible. These little guys tell a story. It’s important to listen.