OP, the ticker of Optimism, the cryptocurrency that powers popular and fast-growing Ethereum layer-2 scaling solution Optimism, has slipped back by about 5.0% on Monday and was last changing hands in the $2.80s according to Trading View citing Coinbase exchange data. Since the start of February, OP/USD has tried and failed on multiple occasions to push to the north of the $3.0 level, though more recently its 21-Day Moving Average at $2.67 has been offering support.