The main fundamental factors affecting the price of Ethereum include the demand for ether to participate in the ICO and the demand for ether to participate in DeFi projects (such as Compound or Synthetix). Proposal factors include miners selling mined cryptocurrencies to pay expenses, and dumping the collected airtime with ICO projects, all this increases the ETH supply on the market. The net monthly sales pressure is expected to remain negative during 2019 (i.e. there will be more sellers than buyers on exchanges).