Rental Arbitrage is a smart technique to earn money in any type of property including a multifamily house, duplexes, or triplexes. Rental arbitrage is a business model where an individual or entity rents a property longterm and then rerents or sublets that property on a shortterm basis.Arbitrage in real estate is a type of investment strategy where real estate investors find new investment properties, rent them, and then sublease them. Arbitrage is the process of simultaneously buying one instrument and selling another security short (also known as shorting a security) Arbitrage is the simultaneous purchase and sale of the same asset in different markets in order to profit from a difference in its price. Airbnb rental arbitrage is the act of renting a property longterm and then rerenting it shortterm on vacation rental sites like Airbnb or Vrbo. Large Trader Reporting Program. The CFTC operates a comprehensive system of collecting information on market participants. What does the verb arbitrage mean? There is one meaning in OED's entry for the verb arbitrage.