The altcoin market is mostly unpredictable as even cryptocurrencies with high price value can get knocked over by smaller ones, given the right circumstances. This year, Polkadot (DOT) may be on the former side as the token, whose market cap is above $10B is showing signs of lagging momentum, struggling to stay above the crucial The post Polkadot Price Forecast: Can DOT Stay Above $7? Potential Rivals Stacks (STX) and Rollblock (RBLK) appeared first on CoinGape .