Block (SQ 0.91%) stock has always seemed a little weird to me -- even before it changed its name from "Square," to "Block," but forgot to tell its ticker symbol. One of the hottest stocks of the late 2010s, shares of this early fintech stock really took off during the coronavirus pandemic in 2020-21 as investors warmed to its contactless payment technology. The weird thing, though, is that 2020 was the year after Block's profits had already peaked, and its earnings began to decline -- ultimately hitting a n ...