Buying, selling or holding securities evaluations are not simple to make. They’re often the basis of media articles because they fill space. And the media invariably get explanations wrong.
One-sided ads will add to the timing confusion.
The strategy an investor should use will depend on the original investment intent when the securities are purchased. What is the purpose of the purchase? What is the reasoning in terms of investor age, goals, risk accommodation, and psychology?
And, most importantly, the extent of discipline the investor has decided to employ to keep to that strategy.
Provided, the investor is one of the few who can be really disciplined. (See the Earl J. Weinreb NewsHole® comments and @BusinessNewshole at Twitter.)