SLR In currencies, this is the abbreviation for the Sri Lankan rupee. Investopedia Says: The currency market, also known as the foreign-exchange market, is the world's largest financial market, with a daily average volume of more than US$1 trillion. Related Terms: Currency Forex - FX Hard Currency Money SLR In currencies, this is the abbreviation for the Sri Lankan rupee. Investopedia Says: The currency market, also known as the foreign-exchange market, is the world's largest financial market, with a daily average volume of more than US$1 trillion. Related Terms: Currency Forex - FX Hard Currency Money |