When bitcoin drops ten bucks, buy. When it rises 10 bucks, sell. Bitcoin goes up and down at the same price multiple times a day, and you can automate this process m
Yeah, there are several trading bots out there right now that offers these kind of features. They allow you set a buy order once the price is dropping, and a sell order once the price has risen.
But if you choose to do it this way, you'll have to have a large enough capital. Otherwise it's not worthwhile.