I am currently trying to arbitrage across two markets A and B. My trading strategy is as follows: if the price between A and B differs by more than X%, then go long on the lower priced market, and short on the higher priced market, and vice versa.
The assets are otherwise fungible.
Since there is no actual movement of assets across the markets, two questions are prompted:
1. Is this technique still arbitrage?
2. What is this technique called?