so far electricvehicle competition hasn’t put a dent in tesla‘s growth or valuation but people are always on the lookout for threats to the ev king rivian automotive could put a chink in tesla’s armor but competition has nothing to do with the new tesla risk rivian’s ticker rivn initial public offering was a smashing success the stock is up almost 12 in early trading to about 114 a share the sp 500 is up 02 while the dow jones industrial average is down 02 in thursday morning trading