  In recent years, the tendency of the number of financial institutions
including cryptocurrencies in their portfolios has accelerated.
Cryptocurrencies are the first pure digital assets to be included by asset
managers. Although they have some commonalities with more traditional assets,
they have their own separate nature and their behaviour as an asset is still in
the process of being understood. It is therefore important to summarise
existing research papers and results on cryptocurrency trading, including
available trading platforms, trading signals, trading strategy research and
risk management. This paper provides a comprehensive survey of cryptocurrency
trading research, by covering 146 research papers on various aspects of
cryptocurrency trading (e.g., cryptocurrency trading systems, bubble and
extreme conditions, prediction of volatility and return, crypto-assets
portfolio construction and crypto-assets, technical trading and others). This
paper also analyses datasets, research trends and distribution among research
objects(contents/properties) and technologies, concluding with some promising
opportunities that remain open in cryptocurrency trading.
