After holding strong values through most of the year, trucks posted the largest price decline at auction since 2014 this past week, showing signs of approaching fall.

The latest Black Book Market Insights report shared truck prices dropped 0.46 percent or $73 last week, “indicating that the fall price declines might finally be in full gear.”

Cars, on the other hand, which have seen much stronger depreciation in 2015, saw a similar rate of decline, losing 0.51 percent or $58 of their value.

Anil Goyal, Black Book vice president of automotive valuation and analytics, said, “It’s beginning to feel like fall and along with the decreasing temperatures outside, we are seeing decreasing values across all our segments.”

This assertion was echoed by customers in the lanes. Black Book editors overheard an auction attendee from Arizona, say, “Prices (are) slowly inching downward in this area.”

On the truck side, compact SUVs, full-size cargo vans and full-size passenger vans saw the greatest depreciation, all posting price declines greater than 1 percent last week.

Full-size pickups also saw a larger-than-average decline of 0.52 percent or $98.

On the other hand, the midsize SUV (-0.33 percent or -$19), minvan cargo (-0.19 percent or -$10) and minivan passenger (-0.04 or -$5) segments experienced much smaller decreases in value.

On the car side of the biz, the upper mid-size car (-0.89 percent or -$96), entry level car (-0.88 percent or -$56) and full-size car (-0.75 percent or $68) segments saw the largest declines last week.

Interestingly, the compact cars, which saw some of the biggest depreciation in the lanes after tax season, posted the smallest price drop out of all car segments. This segment saw a decline of just 0.26 percent or $21.