According to the United Auto Workers update posted on Wednesday, 18,600 union members are now on strike at 41 Big 3 manufacturing facilities in 21 states.

The ramifications in the used-vehicle space, particularly the wholesale market, continue to evolve.

Black Book reported Tuesday that wholesale prices dipped just 0.22% last week. And with dealers concerned that diminishing new-car volume could pinch used-vehicle availability, Black Book noted the estimated average weekly sales rate increased to 52% during the stretch that closed on the first day of fall.

“It’s been a full week of the UAW strike, and the market has mixed messages,” Black Book said in its newest installment of Market Insights. “Overall, depreciation is slowing down, but the story is in the details.

“For example, the first round of locations impacted by the strike involved the production of the Chevrolet Colorado, and that spiked the demand for small pickups, with the newer used units — 0- to 2-year-olds — increasing 0.02% last week,” analysts continued in the report.

Looking at volume-weighted information about the overall truck market, Black Book determined values decreased 0.19% last week. For perspective, truck values dropped 0.79% a week earlier.

And Black Book indicated truck depreciation moved lower at about the same pace no matter the age. Analysts watched prices for 0- to 2-year-old models decline 0.12% last week, while values for 8- to 16-year-old units dipped 0.14%.

Perhaps illustrating strike implications, Black Book noticed prices for two truck segments rose a week ago. They included midsize crossovers (up 0.08%) and full-size crossovers (up 0.25%).

“In contrast, the luxury equivalents continued to decline,” analysts said.

Also of note, Black Book pointed out prices for compact vans have now declined for 24 consecutive weeks after falling another 0.79% a week ago.

Moving over to cars, Black Book determined that overall car values softened 0.29% last week. Car prices decreased 0.59% a week earlier.

Analysts said newer cars didn’t decline in value as much as older models — 0- to 2-year-old car segments were down 0.13%, while 8- to 16-year-old car prices declined 0.28%.

Black Book mentioned subcompact cars and luxury cars sustained the largest value declines last week, as each category dropped by 0.48%.

“But the rate of decline has dramatically slowed down. Subcompact cars had the lowest single-week depreciation in two months,” analysts said.

Black Book closed its update by pointing out UAW is expanding the strike to 38 parts and distribution locations around the country for General Motors and Stellantis.

“The union did not add additional Ford locations to the list as the negotiations moved in a positive direction at the end of the week with them. However, if the strikes drag on for several more weeks, we expect to see more increases in other segments as a result,” Black Book said.

“As always, we have our team of analysts focused on keeping their eyes on the market, watching for developing trends and gathering insights,” Black Book went on to say.