People should keep an eye on one undervalued altcoin, according to a well-known trader. ONE's 20-fold price increase since January has made it one of the best-performing altcoins YTD, according to Coin Bureau. Given the altcoin's low market capitalization of $1 billion, he believes there is still room for price appreciation. ONE, ONE's utility token, has been running on Harmony's mainnet since June 2019 and is expected to achieve a 3 percent annual inflation rate.