Some types of arbitrage strategies:

Inter-exchange arbitrage — the same asset is traded on different exchanges. For example, shares of a company may cost more on a foreign exchange than on a local one due to differences in demand, supply, or exchange rates.

Spot-futures arbitrage — simultaneous actions on two markets: buying an asset on the spot market (where trades are executed instantly) and selling a futures contract — a contract for the delivery of the same asset in the future.

Interest arbitrage — earning from the difference in interest rates. For example, one can take a loan in a currency with a low interest rate and invest in assets with high returns.

Currency arbitrage — simultaneous buying and selling of one currency in different trading systems. This can be caused by differences in spreads (the difference between the buying and selling price).