Wholesale price movement is expected to continue to decline slightly, following trends seen in August highlighted in NADA Used Car Guide’s latest Guidelines report.

This week, wholesale prices are predicted to fall 0.2 percent, or $25. This rate shows little change from August, which was also a mild month for depreciation. According to the Guidelines report, auction prices dropped by 1.1 percent last month — the same rate NADA UCG reported for the prior two months, as well.

“August’s dip was mild relative to what was recorded for the month over the past two years, as prices fell by 1.4 percent and 2.3 percent in August 2012 and 2011, respectively,” said NADA UCG’s Jonathan Banks.

Taking a look at the current trends, the only segment expected to see any appreciation over the course of the current week is the midsize vans, which are expected to rise by 0.2 percent, or $25.

Though large pickups have experiences strong price retention in recent months and weeks, prices are expected to remain flat versus their two-week average, NADA UCG reported.

This may mark a turn in the tides, since the Guidelines report showed that the large pickups continued to “outperform” other segments in August, seeing price gains of 0.2 percent during this past month.

“By NADA’s estimation, depreciation for the segment has been virtually non-existent over the course of the year,” Banks added.

This week, all other segments are expected to decline by between 0.2-0.3 percent.

Some of the largest price dips are expected in the large SUV, luxury car, luxury utility, and midsize utility segments, which are each expected to see price dips of $50, NADA UCG said.

Lastly, the smaller declines will be seen in the compact car, compact utility, and midsize car segments which will each see a slight $25 dip, officials concluded.

The Guidelines report released Wednesday also offered a few predictions for how auction prices will pan out in the home stretch of 2013.

Banks first touched on seasonal factors, since fall is normally the “softest time of year for used-vehicle prices as rental companies increasingly off-load 1-year-old units to make room for new models and consumers shift their focus to the start of a new school year and the impending holiday season," he said.

With this in mind, Banks predicted that even though depreciation will be stronger than rates seen earlier in the year, it may not math declines seen during this season in years past.

Four- and two-week AuctionNet wholesale average prices are created by collecting all AuctionNet records for vehicles  up to five years of age for a specified period of time.  Prices are then adjusted for changes in mileage and mix.

Current week prices are based on NADA's proprietary used-vehicle value model which includes assumptions for new-vehicle prices, used-vehicle supply, gasoline prices, and other economic factors.