Speed Resistance Lines are used to define price support levels. For example, if a security is in a rising trend, its price will usually stay above the 2/3 Speed Line. If prices do penetrate the 2/3 line, they will generally fall all the way to the 1/3 line before regaining support.
Speed Resistance Lines or SRL, also known as Speedlines, are tools to find possible support and resistance levels for an existing trend. SRL were developed by Edson Gould and is similar to Fibonacci Fans indicator. Speed resistance lines combine trend lines and percentage retracements to predict support/resistance levels and also measures the speed of a developing trend.
A set of Speedlines consists of three lines originated from same point at left and are extended to the right side. The first line is created by connecting a recent low to a recent high (in an uptrend) and a recent high to a recent low (in a downtrend). Now a vertical line is plotted covering the vertical difference between the low and high. The second and third lines are plotted in a way that they originate from the same point of first line origin and intersect 1/3 and 2/3 levels of the vertical line. Traders can plot more than one set of SRLs on same chart as the trend develops and new highs/lows are formed. Also many traders use 1/2 or 50% lines to find trend changes.
When the price is in somewhere between two of these lines, the upper line is considered as resistance and lower line is considered resistance. If mid line is crossed (from above/below), the new upper and lower lines become support and resistance levels. Generally if prices cross a line, they fall speedily to the next line. Sell signals are generated in an uptrend when the price cross third (lower) line from above; and buy signals are generated in an downtrend when the price cross third (upper) line from below.
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