Tesla shares edged higher in early Friday trading, but have lost nearly have of their value since mid-December, and a top Wall Street analyst suggests there could be more declines ahead tied to weakness in the group's core automaking business.

Another analyst cut a target price for Tesla stock because car business fundamentals are “spoiling razzle-dazzle momentum.” The price target cuts are piling up. On Friday, Wells Fargo analyst Colin Langan cut his Tesla price target to $130 from $135.

After weeks of downturns on Tesla J.P. Morgan has lowered its price target on Tesla’s stock. This is mainly because the company thinks that fewer cars will be delivered for the second year in a row. Analysts also say that current and possibly new customers are feeling differently about the electric vehicle maker.