Well, if you had a little wager at your dealership or consignment department guessing how long wholesale values would increase because of tariffs and other factors, the person who predicted 10 weeks in a row would be the winner.

Black Book reported that wholesale values dipped 0.03% last week, stopping the price climb that began in March when college basketball was generating lots of wagering activity.

Perhaps equally noteworthy, analysts said last week’s auction conversion rate came in at 58%. That’s the first time it’s been below 60% since the second half of February.

“As we reach the midpoint of May, the wholesale market is beginning to show signs of decline,” Black Book said in this week’s installment of Market Insights.

“Last week, the overall car segment remained positive; however, several sub-segments experienced a downturn,” analysts continued in the report. “Meanwhile, the overall truck segment registered its first decline in 10 weeks, although five sub-segments displayed positive movement. This marks a notable shift in market trends, with both car and truck segments demonstrating mixed performance.

“The auction conversion rate last week dropped to its lowest point since the third week of February. Additionally, total auction inventory numbers were comparable to levels last seen in January, highlighting a significant shift in market activity and demand dynamics,” Black Book went on to say.

As Black Book mentioned, some specific vehicle segments made notable movements a week ago.

One was sporty cars, which generated a value increase of 0.47%, according to Black Book tracking. Analysts said prices for these summertime rides now have risen for nine consecutive weeks, with an average weekly increase of 0.40%.

Black Book also mentioned that minivans have eased off the value increase accelerator, climbing only 0.15% last week. That’s after analysts indicated prices for these people-movers have jumped higher in the previous four weeks with an average value rise of 0.92% during that stretch.

Now that these notable overall wholesale market streaks are over, what might be happening at the auction as the unofficial start of summer arrives with Memorial Day weekend straight ahead?

“As always, our team of analysts are focused on keeping their eyes on the market for developing trends and gathering insight,” Black Book said.