Today will down, and next trading day will down. If you are not day-trading, then do not buy until things clear up, probably next Friday. But I do not mean the next Friday will be up, it might be down.
If you want to short and hold the short position for WFC for days or weeks, then your chance to earn money is much better than buy and hold it for several days.
If you are a good day-trader, then you probably will earn some penny if you choose the right time to long and exit the long position within hours.