Positive wholesale values continued last week for the sixth consecutive week, although the wholesale market's gains are showing signs of slowing down, according to Black Book's April 29 Market Insights report.

Overall car segment values increased 0.12% last week, compared to 0.24% the week before. Overall truck segment values increased 0.06%, compared to 0.16% the week before.

Full-size cars and sporty cars led the car segment in weekly price gains at 0.34% and 0.37% respectively. Compact, midsize, near luxury, sporty, and premium sporty cars also had positive a positive week. The three car segments to experience a decline in average wholesale value were subcompact, luxury, and prestige luxury cars.

Compact crossovers/SUVs and minivans realized the highest gains in the truck segment, with values for the segments increasing 0.23% and 0.22%, respectively. All luxury truck segments that Black Book tracks, as well as small pickups saw values decline through the week.

"Spring market strength is starting to fade as positive adjustments to values slowed down last week," said Anil Goyal, executive vice president, operations for Black Book. "We are seeing more no-sales in auto auctions than in recent weeks."