Well, it all depends on what you think a bull run really means. Typically, a bull run is an extended period of price increases, but even a bull can take a breather occasionally. There might be some drops or pullbacks during a bull run but then the market finds its footing again and keeps charging ahead and as long as the general trend is up, up, up over time, I'd call that a bull market. But if prices start crashing and dont recover falling lower and lower, then the bulls have left the building. So to me, it's about the big picture - prices marching higher over an extended period. A few stumbles don't necessarily kill a bull run if buyers keep stepping in. Of course, others may have different views on what makes a true bull run.