For me, I set my BUY order, like the lowest price it dump before or within the 24 hours. Then let it to be filled. When it is filled, then its time to set again the SELL order. If trading is active, just repeat the system and you will benefit the pup and dump. Also, if your BUY order is not filled, you can review the trading history and set the new Buy order.
That kind of strategy is working but not all the times and just a few times because the lowest price within 24 hours is not repeatable and somehow the price might not touch the lowest price again and just pump to the highest possible price and that is how we can lose our opportunity to buy at a cheap and sell at a high price. To be effective trader, i think technical analysis is the best.