What is Hodl & hexn smart exchange?

HODL is a strategy in the cryptocurrency market where investors hold their coins despite market fluctuations, believing in long-term appreciation. The Hexn Smart Exchange, on the other hand, seems to be a platform that utilizes smart technologies, possibly including smart contracts and automated trading strategies, to facilitate efficient and secure cryptocurrency exchanges. However, specific details and the exact nature of the Hexn Smart Exchange are not elaborated upon in the given context.