Preowned business aircraft exceeded or continued to hold their value in September even as inventory levels rose, according to Sandhills Global’s latest aviation industry market report. That’s especially true among turboprops, the asking values of which surpassed highs that were reached earlier in May.

In the U.S. and Canada, turboprops’ asking equipment value index (EVI)—a Sandhills proprietary measure used to monitor equipment markets—in September increased 3.3 percent month-over-month and 33 percent year-over-year. Used turboprop inventory increased by 4.3 percent in September but remained down 30.4 percent from a year ago.

For preowned business jet aircraft globally, September inventory rose 3.7 percent—the eighth consecutive month of increases—and was up 14 percent from a year ago. However, asking EVI edged higher at 3.4 percent for the month and 22.4 percent year-over-year.

“Aircraft market segments continue to show strength despite a weakening economic outlook,” said Sandhills’ Controller department manager Brant Washburn.