Why is everyone so bad at selling shares?

The majority of stock advice articles we read are about which shares we should or shouldn’t buy.

But selling is just as critical, since that’s when losses or gains are actually realised.

“Selling is as important to investing as braking is to driving,” Lumenary managing director Lawrence Lam posted on Livewire.

“Yet all too often, investors only know the accelerator and gloss over the analytical framework of selling. In doing so, they give up much of the hard work they have put in to establish the buy thesis.”

Lam added that selling is a difficult art that even professional investors are clumsy at.

He cited a recent University of Chicago study that showed poor selling was killing performance among institutional…