If you trading long term, better to use Weekly charts on stocks.
Not having a protective stop even for long term, have you seen Sears Holding?
Notice steep plunge in 2008, many stocks had this pattern usually has rapid move other way, but seldom continuation if too steep.
XEC's movement down in late December 2018 was tracking Crude Oil futures of same pattern. Where there is a concern with XEC, it is not tracking crude oil currently.
To me XEC has been in a down trend since Feb 2018 based on weeklies. I do good amount of buying with a stock gets lower, and I do keep them years and even decade plus, but my pain level is very tight(short duration) and I hedge new entries, in so many days it has to be rising or I dump it.
Thanks for making the post, but next time it goes up to trendline, I will consider selling short/Hedged. I stopped using fundamentals back in the 80s, can't back test it. Do they do any fracking? I am wondering when companies are going to start being sued in Oklahoma from all the sinkholes.
So long as you know what the trend is, have a $$$ total in mind, divide in thirds and put in a third when going lower and last one near your protective stop, but if you don't have a clue what you are doing, think of Sears Holding. Using options should only be used when you have well back tested trading plan and understand what you are doing, otherwise they can wipe out all your money. Good luck.