Nutrafuels, Inc. (NTFU: OTCQB) | Symbol Change Wed, Mar 06, 2019 12:00 - Nutrafuels, Inc. ( NTFU : OTCQB) - Symbol Change - The symbol, NTFU, is no longer a valid symbol for Nutrafuels, Inc.. As of Wed, Mar 06, 2019, the new trading symbol is NLBS. You may find a complete list of symbol changes at otcmarkets.com .