The basic idea is that there is the same asset at two different exchanges trading at two different prices. In the screenshots you can see,
- 2.05 SPS per GLX on Diesel Pool Swaps
- 2.13 SPS per GLX on regular HIVE-Engine trades
You can buy from the place where prices are low and sell where the prices are high. Usually these price differences get closed down fast as more trades happen. You can make few quick trades while the price difference is large enough.
!PIZZA
Thanks for this clarification,
now I understand