Not really: they have been broadly flat. As of Nov 2, 2026, adjusted for trim and model year, Porsche Cayman prices over the last 12 months were broadly flat (+5% a year) (90 online-auction sales); over the last 3 months the mix-adjusted median moved -20% against the 3 months before (within normal sample noise), with the raw median at $34,500 against $36,250, and our market signal reads Hold (no clear move).
Within the Cayman, easing most is the Porsche 987 Cayman (-14%/yr).
Year over year (raw, not mix-adjusted): the median of the last 12 months was $34,375 from 92 U.S.-dollar sales, against $39,990 from 32 sales in the 12 months before (-14%). Raw medians shift with the mix of cars sold, so treat this as a rough check.
Quarter by quarter (online auctions): the median was $34,375 in Q3 2026 (70 sales), against $44,625 in Q3 2025 (22 sales), a -23% change. Quarterly medians move with the mix of cars sold, which is why the headline answer uses the mix-adjusted figures.
Quarterly median price
Quarterly median sold prices
| Quarter | Sales | Median | Middle 50% |
|---|---|---|---|
| Q2 2025 | 7 | $36,231 | $33,700–$45,600 |
| Q3 2025 | 22 | $44,625 | $35,800–$54,600 |
| Q4 2025 | 2 | — | — |
| Q1 2026 | 1 | — | — |
| Q2 2026 | 0 | — | — |
| Q3 2026 | 70 | $34,375 | $26,900–$59,000 |
| Q4 2026 (to date) | 19 | $36,000 | $28,400–$59,800 |
U.S.-dollar sales at online auctions (the venues the market signal uses), by sale date. A median needs 3+ sales and a middle-50% range 5+. "Partial sample" means our sample for this model starts part-way through that quarter.
Monthly medians and the 3-month windows
Which Cayman cars are rising?
| Page | 12-month trend | Sales (12 mo) | Signal |
|---|---|---|---|
| Porsche 987 Cayman | -14%/yr | 62 | No signal |
The same mix-adjusted 12-month trend as above, computed separately for each sub-generation or trim with enough dated sales. Smaller samples swing more.
Compare the trend
- Porsche Cayman vs Boxster: Cayman +5%/yr, Boxster +10%/yr
How we measure the trend
The 12-month trend is a robust (Theil-Sen) slope of sold prices after removing each sale's trim and model-year effect, so a run of pricier cars does not look like a rising market. The 3-month change compares the mix-adjusted median of the last 3 months with the 3 months before, and the Buy / Hold / Sell signal needs at least 15 sales in each window and a move of 8% or more. These are the same numbers as the market signal on the Porsche Cayman page. It describes recent auction results; it is not a forecast or financial advice. Methodology.
Full Porsche Cayman price guide: median, trims and every recent sale.
Frequently asked questions
Are Porsche Cayman prices going up?
Not really: they have been broadly flat. As of Nov 2, 2026, adjusted for trim and model year, Porsche Cayman prices over the last 12 months were broadly flat (+5% a year) (90 online-auction sales); over the last 3 months the mix-adjusted median moved -20% against the 3 months before (within normal sample noise), with the raw median at $34,500 against $36,250, and our market signal reads Hold (no clear move).
What did a Porsche Cayman sell for last quarter?
In Q3 2026, the median U.S.-dollar sold price at online auctions was $34,375, from 70 sales. The middle half sold between $26,900 and $59,000.
Will Porsche Cayman prices keep rising?
Nobody can know that, and this page does not forecast. It describes recent sold prices: the 12-month trend is broadly flat (+5% a year). Supply, condition and wider market conditions can change direction quickly.
Published Nov 2, 2026. Figures as of Nov 2, 2026, rebuilt weekly from the latest sample.