Whaleclub's business is based on the pure exchange rule, so there are no fees on trade execution beyond the spread indicated. All trades are executed, in full, at the listed prices, so there are no slippage or liquidity issues either.
This model results in much reduced costs for end traders versus a traditional orderbook exchange which charges a fee on execution, in addition to the spread, and often has less than capable liquidity to execute your trade at one given price, which results in slippage.
Many users who are new to the field are not aware of the real costs of trading on an orderbook exchange, particularly when submitting market orders.
Execution Cost of a 10BTC size Market Order on the BTC/USD market.
Execution Cost of a 10BTC size Market Order on the ETH/BTC market.
Learn more about Whaleclub's Business Model.