@ Haikal:
If the price movement is retracing from an uptrend to a downtrend, then the Fibonacci retracement line is drawn from the swing high point to the swing low point. Conversely, if the price movement is retracing from a downtrend to an uptrend, then the Fibonacci retracement line is drawn from the swing low point to the swing high point.
For an explanation of Fibonacci retracement, please read: Trading With Fibonacci Theory
@ Al Ghazali:
- Can Fibonacci be used to measure trend strength?
It can't. Fibonacci levels only indicate support or resistance levels when the price movement is retracing (Fibonacci retracement), or when the price movement is expanding (Fibonacci expansion).
Answer to Al Ghazali:
No. Fibonacci cannot be used to measure the strength of a trend itself.
Fibonacci is more of a tool to identify potential levels where a trend might bounce or reverse direction. Fibonacci retracements and extensions can be used to measure levels where a trend may reverse or continue its trend.