Every Gulfstream model tracked by Hagerty Jet Group rose in value in the third quarter of 2026, the first time in more than four years that all six moved up together. At the end of September only 59 aircraft across those six models were for sale, against 121 a year earlier, a fall of 51%. Hagerty puts that at roughly 2.6% of the combined fleet, against the 6% to 8% of a balanced market.
Demand did not surge. Buyers closed 35 transactions in the quarter against 34 a year earlier, and 118 in nine months against 122. The same number of deals is being done with half the aircraft to choose from.
From a hidden price to a hidden listing
When this page first ran in September, it reported that the published average asking price for a business jet had fallen roughly 30% in the year to the second quarter, and that almost none of it was a fall in price. Jet Match, which publishes quarterly intelligence on the preowned fleet, showed the most expensive aircraft switching to "make offer" listings, pulling them out of the average while their values rose. The ultra long range segment had 4.1 months of supply, against a pre-2020 average of 11.8.
The third quarter takes that one step further. Hagerty says well priced, late model aircraft now trade in days, "often before reaching the open market." In the second quarter the asking price was disappearing from the listing. In the third, for the best aircraft, the listing itself is disappearing.
Q3 2026 preowned market
Half the listings gone, every model up
Six Gulfstream models tracked by Hagerty Jet Group, end of September 2026.
Value change in the quarter, by model
The wider market splits (AMSTAT, preliminary)
Sources: Hagerty Jet Group, Q3 2026 Gulfstream Quarterly Market Update. AMSTAT preliminary Q3 2026 review, as reported by Corporate Jet Investor, 12 October 2026.
Model by model
Hagerty's quarterly update ranks the gains. The G280 led at 9.4% for the quarter, followed by the G600 at 8.9%, the G650 at 6.7% and the G550 at 5.2%. The G450 rose 3.4% and the G500 3.3%. The detail beneath is uneven.
- G550. Inventory fell to 12 aircraft from 43 a year earlier, the lowest since early 2022. Thirteen transactions closed in the quarter and values rose 8.8% year on year.
- G650 and G650ER. This is the one model where supply grew, from a low of 6 at the end of 2025 to 16 now. Values still climbed 6.7% in the quarter and 11.7% year on year: buyers are absorbing listings as fast as they arrive.
- G600. Only four were for sale, and the model posted the largest quarterly gain in its history. The wait for a new G600 extends beyond two years.
- G500. Seven for sale and no closed transactions in the quarter, a function of supply, Hagerty says, not demand.
- G450. Eleven sales, with average days on market down from more than 200 a year ago to 85. Asking prices ran from $8.5 million to $17.8 million.
- G280. Six for sale and values up 12.4% on a year earlier. Gulfstream has announced the G300 as its replacement, with a reported backlog to 2031.
The wider market is not moving with it
AMSTAT's preliminary third quarter review, reported by Corporate Jet Investor on 12 October, broadens the picture. It shows heavy jets at 5.1% of the fleet for sale against a ten year average of 7%, year to date transactions up 7.3%, and median values up 14%.
Below the large cabin class the picture reverses. Super midsize inventory is up 11.4% this year while values have levelled off at about 2% up. Light jet transactions fell 26% in the third quarter against a year earlier and values are down 4%. Turboprop transactions fell 47% and values are down 5%. Andrew Young, general manager of AMSTAT, described a market "moving in different directions by segment."
That is the barbell described here in September, now confirmed by a second dataset: demand concentrating at the top of the size curve, where supply is thinnest, and loosening further down.
Why a Gulf buyer feels it first
Gulfstreams are a staple of Gulf large cabin fleets, as Arabian Business noted in reporting the Hagerty figures on 6 October. Delivery positions for a new G700 or G800 now run roughly two years or more out, according to Hagerty. A buyer who needs one sooner is pushed into a preowned market that has just halved.
Hagerty names bonus depreciation as a continuing driver of United States activity and expects the fourth quarter, historically its busiest, to remain a strong sellers' market. It also cites Federal Reserve data, reported by the Wall Street Journal, showing the wealth of the top 0.1% of American households has more than doubled since the end of 2019. A Gulf buyer shopping in November is bidding against tax driven American year end demand.
What it costs the buyer
The asking price was never an appraisal, but it gave a buyer a starting point. When the best aircraft sell before they are listed, the buyer has neither the price nor, often, the knowledge that the aircraft was available.
What replaces it is access and data: a broker who hears about aircraft before they are advertised, transaction records that show what comparable serial numbers actually closed at, and an appraisal against specification and maintenance status. A buyer who already knows what the pre-purchase inspection will look for can move within the days a good aircraft stays available.
For owners, the arithmetic runs the other way. The values Hagerty records are consistent with AVNET's earlier finding that a seven year old jet has barely depreciated in this cycle. A G550 or G650 owner considering a sale holds real negotiating power.
What to watch
Jet Match publishes its third quarter intelligence in late October, which will show whether the share of make offer listings kept climbing. NBAA-BACE runs in Las Vegas from 20 to 22 October, and any change to delivery slots for the G700, G800 or G300 announced there will feed straight into what buyers will pay for the aircraft already flying. The number that matters most is still the plainest one: how many large cabin aircraft are for sale at all. A year ago Hagerty counted 121 across six Gulfstream models. Today it counts 59.