Lolz.. I guess what O.P meant is "HODL" which means "Hold On For Dear Life", which is a short acronym used for people who buy their Bitcoin and hold on without for a very long time, e.g 5yrs and above.

So however, regarding what O.P was saying, I will say that thou the price chart history of BTC alone may not have a huge influence to help predict the future price Bitcoin so as to enable you accumulate more BTC by buying low & selling  (i.e Dollar Cost Averaging method), but with the help of market news and others, it will go a long way helping you getting close to prediction.