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Market

See the market behind the cars.

Track values, transactions, supply, and market movement across the collector cars and marques that matter.

Demo market data — production feeds not yet connected · as of 24 Sep 2026

2010 Porsche 911 GT3 RS in Carrara White with Guards Red accents, front three-quarter view, illustration in a dark studio setting
2010 Porsche 911 GT3 RS · Illustration

STABLE Collector Market Index

1,086.4

+8.6% since Jan 2024Demo

STABLE Collector Market Index

The collector car market, in one line

A cohort index across the collector segments STABLE tracks, normalised to 1,000 in January 2024. Demo series.

Index, January 2024 = 1,000 · monthly

9501,0001,0501,100Base 1,000202420252026
View as table
MonthIndexSince Jan 2024
Sep 20261,086.4+8.6%
Aug 20261,085.4+8.5%
Jul 20261,083.0+8.3%
Jun 20261,082.8+8.3%
May 20261,079.1+7.9%
Apr 20261,077.4+7.7%
Mar 20261,073.5+7.3%
Feb 20261,072.6+7.3%
Jan 20261,070.4+7.0%
Dec 20251,067.7+6.8%
Nov 20251,067.9+6.8%
Oct 20251,063.2+6.3%
Sep 20251,061.6+6.2%
Aug 20251,061.4+6.1%
Jul 20251,059.1+5.9%
Jun 20251,058.1+5.8%
May 20251,055.5+5.6%
Apr 20251,048.3+4.8%
Mar 20251,048.5+4.8%
Feb 20251,046.2+4.6%
Jan 20251,039.7+4.0%
Dec 20241,037.6+3.8%
Nov 20241,033.4+3.3%
Oct 20241,033.4+3.3%
Sep 20241,029.3+2.9%
Aug 20241,025.3+2.5%
Jul 20241,020.2+2.0%
Jun 20241,018.6+1.9%
May 20241,014.7+1.5%
Apr 20241,010.8+1.1%
Mar 20241,009.4+0.9%
Feb 20241,004.0+0.4%
Jan 20241,000.00.0%
  • Sep 20261,086.4
    Index
    1,086.4
    Since Jan 2024
    +8.6%
  • Aug 20261,085.4
    Index
    1,085.4
    Since Jan 2024
    +8.5%
  • Jul 20261,083.0
    Index
    1,083.0
    Since Jan 2024
    +8.3%
  • Jun 20261,082.8
    Index
    1,082.8
    Since Jan 2024
    +8.3%
  • May 20261,079.1
    Index
    1,079.1
    Since Jan 2024
    +7.9%
  • Apr 20261,077.4
    Index
    1,077.4
    Since Jan 2024
    +7.7%
  • Mar 20261,073.5
    Index
    1,073.5
    Since Jan 2024
    +7.3%
  • Feb 20261,072.6
    Index
    1,072.6
    Since Jan 2024
    +7.3%
  • Jan 20261,070.4
    Index
    1,070.4
    Since Jan 2024
    +7.0%
  • Dec 20251,067.7
    Index
    1,067.7
    Since Jan 2024
    +6.8%
  • Nov 20251,067.9
    Index
    1,067.9
    Since Jan 2024
    +6.8%
  • Oct 20251,063.2
    Index
    1,063.2
    Since Jan 2024
    +6.3%
  • Sep 20251,061.6
    Index
    1,061.6
    Since Jan 2024
    +6.2%
  • Aug 20251,061.4
    Index
    1,061.4
    Since Jan 2024
    +6.1%
  • Jul 20251,059.1
    Index
    1,059.1
    Since Jan 2024
    +5.9%
  • Jun 20251,058.1
    Index
    1,058.1
    Since Jan 2024
    +5.8%
  • May 20251,055.5
    Index
    1,055.5
    Since Jan 2024
    +5.6%
  • Apr 20251,048.3
    Index
    1,048.3
    Since Jan 2024
    +4.8%
  • Mar 20251,048.5
    Index
    1,048.5
    Since Jan 2024
    +4.8%
  • Feb 20251,046.2
    Index
    1,046.2
    Since Jan 2024
    +4.6%
  • Jan 20251,039.7
    Index
    1,039.7
    Since Jan 2024
    +4.0%
  • Dec 20241,037.6
    Index
    1,037.6
    Since Jan 2024
    +3.8%
  • Nov 20241,033.4
    Index
    1,033.4
    Since Jan 2024
    +3.3%
  • Oct 20241,033.4
    Index
    1,033.4
    Since Jan 2024
    +3.3%
  • Sep 20241,029.3
    Index
    1,029.3
    Since Jan 2024
    +2.9%
  • Aug 20241,025.3
    Index
    1,025.3
    Since Jan 2024
    +2.5%
  • Jul 20241,020.2
    Index
    1,020.2
    Since Jan 2024
    +2.0%
  • Jun 20241,018.6
    Index
    1,018.6
    Since Jan 2024
    +1.9%
  • May 20241,014.7
    Index
    1,014.7
    Since Jan 2024
    +1.5%
  • Apr 20241,010.8
    Index
    1,010.8
    Since Jan 2024
    +1.1%
  • Mar 20241,009.4
    Index
    1,009.4
    Since Jan 2024
    +0.9%
  • Feb 20241,004.0
    Index
    1,004.0
    Since Jan 2024
    +0.4%
  • Jan 20241,000.0
    Index
    1,000.0
    Since Jan 2024
    0.0%

Index family

From the whole market to one car

Each index narrows the cohort: marque, nameplate, generation, variant.

  1. MarquePorsche1,142.8
  2. NameplatePorsche 9111,184.6
  3. Generation911 (997)1,216.2
  4. Variant911 GT3 RS (997.2)1,368.5

Segments

Which parts of the market are moving

12-month change by collector segment.

Demo
  • Analog Supercars+8.9%
  • Japanese Icons+7.2%
  • European Sports+5.4%
  • Classic 4x4+3.8%
  • American Performance+2.9%
  • Modern Collectibles−1.8%

Featured markets

Markets to watch

Average sale and supply from public market pages; index and movement are demo.

Recent sales

Porsche 911 GT3 RS (997.2)

  1. 2011 Porsche 911 GT3 RS

    Grey Black / Red · 8,500 mi · Demo auction

    $412,000Demo

  2. 2010 Porsche 911 GT3 RS

    Carrara White / Red · 10,000 mi · Bring a Trailer

    $572,500Bring a Trailer

  3. 2011 Porsche 911 GT3 RS

    Highest recorded sale

    $625,000CLASSIC.COM

  4. 2010 Porsche 911 GT3 RS

    White / Red · 17,200 mi · Demo dealer sale

    $365,000Demo

  5. 2011 Porsche 911 GT3 RS

    Black / Red · 24,500 mi · Demo auction

    $338,000Demo
Open the GT3 RS market

Supply

Cars for sale now

Public source (CLASSIC.COM). Other counts are demo.

Index or Stable Value?

An index shows how a group of cars has moved: a marque, a generation, a variant. A Stable Value estimates what one specific car is worth today, with its range and confidence.

How STABLE measures the market

Sources and data status

Figures tagged Demo are synthetic and exist only to show how this page will work. Figures tagged with a source were summarised from that public page on 24 Sep 2026. STABLE indexes are normalised to 1,000 in January 2024. An index tracks a group of cars; a Stable Value estimates one car.