The easiest way to obtain Fibonacci sequence is by adding the final 2 numbers to get the next digit. The initial 2 numbers are 0,1. You simply add the previous 2 numbers for obtaining the next figure.
Whenever there’s a trend, the price action is slowly going lower or higher. If there’s an uptrend, then the price action can make higher lows & higher highs. Whilst for a downtrend, the price action can make lower highs & lower lows. These things can be much better clarified in front of price-charts. If there’s an uptrend, then the price action can start from Support-A, moves to Resistance-B, bounces back retracing itself & touches the next Support-C slightly higher, then A bounces back reaching a greater Resistance-D prior to again bouncing back. It, then reaches a higher Support-E. Hence, the price action is broken in 3 segments which are AB, BC & CD.
Now let us draw the Fibonacci Retracements. From the price B where the price-action jumps back, it repeats the previous price action & possibly the place for newer support is amongst these levels of Fibonacci, i.e., 0.382, or 0.5 or 0.618. The price-action may either be a bounce back near to any of these levels.
Then, it moves back towards a new resistance. The new resistance is likely to be higher as opposed to the former resistance found at the B point. The new resistance might be at 1.618 or 1.27 from price B.
Now whilst constructing Fibonacci Extension & Retracement, we抣l begin from A. Estimate price differences among A & B. Take the 3 ratios which are 0.382, 0.5 & 0.618 for the difference in price & plot them onto your chart.
The trading program can do it for you on autopilot however you must understand the basic idea. Imagine the price differences in between A & B is around 100Pips. In case the price tends to bounce-back from 0.382, it is assumed the retracement would have been 38.2 percent. In case it bounces-back from 0.5, it is assumed the retracement would have been 50 percent & if it tends to bounce-back from 0.618, it is assumed the retracement would have been 61.8 percent.
Once the marketplace bounces back taking a U-Turn at any of the above retracement stages & rallies towards D, it抯 assumed the marketplace has gone 27 percent above initial move AB.
To conclude, Fibonacci Extensions & Retracements are a must if you wish to become a serious investor.