- Set
- Professor Program Promos
- Number
- #001
- Market
- US
- Rarity
- Promo
- Variant
- Holofoil
Grass Energy (2023)
Professor Program Promos / #001Tip: compare “Reference price” with “Buy now”. A large gap usually means scarce availability or inflated listings.
Reference priceNM
$1.85
Average of confirmed sales; the main valuation baseline.
Buy now from
—
Lowest active listing; an asking price, not a completed sale.
7-day change
+29.4%
Reference-price movement; low volume can make it unstable.
Sample / confidence
>510-49 sales
More sales reduce the impact of individual transactions.
Condition
Source comparison — what each price means
Sales answer “what is it worth”; listings answer “what does an available copy cost”.
PokémonUSPromo
Grass Energy (2023)
Professor Program Promos / #001/Holofoil
Current Price
$1.85
NM+29.4%
LOW
$1.85
HIGH
$1.85
Volume
>5
Condition / Grade
click to filter
MARKET PRICES·
7D Range
$1.85 – $1.85
Volume (NM)
>5
Confidence
10-49 sales
Market
US
Variant
Holofoil
Rarity
Promo
Last Updated
9/5/2026
Very low or no movement
Market Data
DETAILED PRICES · Price History
DETAILED PRICES · ALL CONDITIONS2 tiers
| Condition/Grade | Price | LOW | HIGH | 7D CHG | Volume | Spark |
|---|---|---|---|---|---|---|
NMRAW | $1.85 | $1.85 | $17.46 | +1.2% | >5 | |
LPRAW | $22.99 | $22.99 | $59.99 | 0.0% | >5 |
MARKET INSIGHTS + Price History
DAILY HISTORY
14 records available| DATE | SOURCE | Price | Change |
|---|---|---|---|
| 2026-09-05 | TCG | $17.46 | — |
| 2026-09-04 | TCG | $17.46 | — |
| 2026-09-03 | TCG | $17.46 | — |
| 2026-09-02 | TCG | $17.46 | — |
| 2026-09-01 | TCG | $17.46 | — |
| 2026-08-31 | TCG | $17.46 | +1.2% |
| 2026-08-30 | TCG | $17.25 | — |
| 2026-08-29 | TCG | $17.25 | +0.9% |
6 records availableAPI Pricing