Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

One of my stocks dropped 40% in 2 days, how should I mentally approach this?
Don't throw good money after bad. If you bought on the peak of an event like news/earnings hoping for more and ignored its value than you might be doomed. Determine the stocks value and see it as a buying opportunity if it's still sweet. If not buy more carefully.  Those kinds of moves in that range you must have been involved in micro-small caps like biotechs. Thats where money goes to talk to itself and chew on its arm. You win big by finding an alien chip under your skin to reverse engineer or  far more likely just wind up eating yourself. If your not holding inside info or at the higher levels of a pyramid for a pump/dump you really shouldn't let your greed take you there. I can expect and stomach w/o worry being wrong at my buy time as much as 10-15% and live with it for a year or more because I see I'm buying a quarter for a dime and will continue to buy into it without staking everything though).  I bought in heavy when netflix (prior to split) was $50 or so hoping for a quick bounce and it sunk to like 20 something. No I didn't buy more, I felt like I just got my own .com bubble experience. I stopped looking at it,helpless to do anything other than eat a huge loss I adopted an out of sight out of mind thinking. I no longer wished to be in it, I felt like an ass for getting myself into it, it did NOT look good at the time and I risked a huge amount of capital for what I felt wrongly was a nice quick trade to make some thousands off. Checked it one day, must have wanted to hurt myself, and it was near $300 a share. My extreme loss had turned into something wonderful. A big tax bomb. Netflix eventually split and rose even more meteorically. I held on and only exited a while back and my worst mistake became my best success. Yet still, you trade like that, on unsound things, don't rely on getting the winning ticket because they are few and all others are losers. If your in for a penny you need to be in for the pound and help yourself immensely by sticking to sound stocks and currencies. You trade on news you may find yourself in Zimbabwe dollars with Enron stock. Bad footing, no matter the news or excitement is bad footing.