Professor Birch's Observations #159, Ultra Rare, XY - Primal Clash
- Card number: #159/160
- Finish: Holo
A PSA 9 Professor Birch's Observations #159 Ultra Rare from XY - Primal Clash has a TCGBerg fair value of $69 as of Nov 15, 2026. It rests on 15 recorded sales, the latest on Nov 3, 2026. PSA has graded 45 copies at PSA 9. Sales evidence is limited, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
15 sales · latest Nov 3, 2026
- Population · PSA 9
- 45
- Market cap
- $3.1K
- Volatility
- 14.5%
- YTD
- ↑ 62.9%
- Sales evidence
- Limited
TCGBerg fair value · PSA 9
$69
Based on 15 recorded sales. Latest sale: Nov 3, 2026.
Price history
Weekly fair value for PSA 9. Shaded area is the confidence band: how precisely we can pin the value; it tightens as more sales confirm it. Dots are individual sales.
What the evidence says
The last PSA 9 sale, $75 on Nov 3, 2026, sits 9.3% above the $69 fair value. The value rests on 15 recorded PSA 9 sales. The latest sale ran above the recent run: the last 5 PSA 9 sales averaged $68, within 0.2% of the value. Its confidence band runs from $55 to $82. A PSA 10 ($4,156) is worth 60.6 times a PSA 9 ($69). Over the past 30 days the PSA 9 value has fallen 26.4%. With limited sales evidence, read the gap and the band as rough guides.
TCGBerg fair value by grade
Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.
- Raw NM$19Ungraded · TCGBerg fair value
- Raw LP$17Ungraded · TCGBerg fair value
- Raw MP$17Ungraded · TCGBerg fair value
- Raw HP$4.67Ungraded · TCGBerg fair value
- Raw Damaged$2.85Ungraded · TCGBerg fair value
Behind the scenes
What goes into this price, and how much we know.
Recent sales
20 trackedEach sale against the grade's fair value on the day it sold.
- $75Nov 3, 2026 · via eBayabove fair value by 10.1%
- $119Oct 30, 2026 · via Fanatics Collectabove fair value by 76.6%
- $30Oct 29, 2026 · via eBaybelow fair value by 11.7%
- $50Oct 28, 2026 · via eBayabove fair value by 63.3%
- $45Oct 21, 2026 · via eBayabove fair value by 22.5%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
Includes a sale 31.4% below fair value
All grades matrix
Every grade we track for this printing. Click any column header to sort; the rightmost column jumps you to listings for that grade.
- $4,1561d 0.0%7d 0.0%30d 11.2%
- Pop
- 12
- Mcap
- $49.9K
- Evidence
- Sparse
- Last
- $6,150
- $691d 0.1%7d 0.7%30d 26.4%
- Pop
- 45
- Mcap
- $3.1K
- Evidence
- Limited
- Last
- $75
- $341d 0.0%7d 0.2%30d 10.4%
- Pop
- 78
- Mcap
- $2.7K
- Evidence
- Limited
- Last
- $30
| Listings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| $4,156 | 12 | $49.9K | 0.0% | 0.0% | down 11.2% | up 199.9% | Sparse | $6,1501mo ago | ||
| $69 | 45 | $3.1K | up 0.1% | up 0.7% | down 26.4% | up 4.0% | Limited | $752w ago | ||
| $34 | 78 | $2.7K | 0.0% | down 0.2% | up 10.4% | down 4.3% | Limited | $302w ago | ||
| $32 | 62 | $2.0K | down 0.4% | up 0.9% | up 13.9% | up 43.8% | Moderate | $503w ago | ||
| $23 | 14 | $324 | 0.0% | 0.0% | up 15.8% | up 30.2% | Sparse | - | ||
| $20 | 7 | - | 0.0% | 0.0% | up 0.3% | up 11.2% | Sparse | $7.501y ago | ||
| Raw | $19 | - | - | - | 0.0% | down 2.1% | - | Very strong | $194w ago |
PSA population report
218 graded copies of Professor Birch's Observations Ultra Rare across 6 grades. The selected grade is highlighted.
PSA 9 makes up 21% of graded copies: 45 of 218. PSA 8 is the most common grade (36%).
Analysis
Professor Birch's Observations - Ultra Rare at PSA 10 carries a TCGBerg fair value of $4,156 as of 2026-11-14. We track a TCGBerg fair value across 6 grades from XY - Primal Clash, from PSA 5 up to PSA 10. A graded population of 12 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has fallen 11.2%.