The Hive Internal market, from time to time, does have weird spikes up and down. Usually it is not enough to make anyone rich by a "fat finger", but I myself have got very happy in the past by leaving some orders either 50% up or 50% down and getting a couple HIVE or HBD of profit.
But the margin of profit is very small because the volumes are low. In the case of the highest spike seen on the chart, the big thin candle that goes from 0.3425 to a precise 0.5 about 19 hours ago has a volume of only 0.002 HIVE traded at the price of 0.5 HBD!
That is nothing! I mean, the profit is a fraction of a cent, but profit is profit, so congratulations for whoever got it! Down on this post I try to reason what could have happened.
Hopefully as more volume goes into the Hive Internal Market, through the many platforms that are already integrating it, both volume and liquidity will increase.
But until then, the loss for the far fingers is minimal:
We can clearly see that before the spike the previous few trades were a couple of orders selling batches of 100 HIVE, 3 times in a row, but then suddenly we see one order that sells 99.998 HIVE follow by another one selling exactly 0.002 HIVE proceeded by another one selling 100 HIVE!
Sounds like a pattern, so I believe that someone was dumping some HIVE when the liquidity disappeared and someone created a buy order too high at a price of 0.5 HBD per HIVE. The buyer was unlucky, but come on, who puts an order to buy that much out of price????