Apparently, market is the constant auctioning to find the most appropriate price of a particular product. Meaning is that if buyers side wins, the price will jump, and when it reaches the climax, it will retrace back. But the confusing thing was when it retraces back, where will it come back? To find it, I normally use a Fibonacci. But how do we know whether it will retrace back around 38.2% or 61.2%? Sometimes it retraces back to 23.6%, or shallow retracement like 76.4%. Some people prefer the zone where the previous high was. Combining volume profile, we can determine the exact retracement. In our case we can see that the price, people who bought at 23.6%, and 38.2% couldn't defend the price. Yet, people who bought at 50% zone is attempting to add more positions to defend their buying positions. If they fails to do so, the price will move downwards, as we can see that below 50%, there is buying and selling transaction occurred. So, below that we can place our stop loss.