Mastemon
Digimon · Hackers' Slumber · Secret Rare · BT23-102 SEC
Released 2025-10-24
$4.50
30-day forecast: $4.43
Live Digimon price tracking, buyout detection, and price predictions for Mastemon on TCG Collector Tools.
Prices Across Marketplaces
TCGplayer (market)
$4.50
TCGplayer (mid)
$11.55
TCGplayer (low)
$4.50
Price Forecast
| Horizon | Forecast | vs Today |
|---|---|---|
| 7 days (stable) | $4.41 | -2.0% |
| 30 days (stable) | $4.43 | -1.6% |
| 90 days | $6.67 | +48.2% |
| 180 days | $6.80 | +51.1% |
| 1 year | $7.06 | +56.9% |
Confidence: Something's Brewing · Calibrated 30-day range $2.99–$5.87 · new card · low volatility
Our Forecast Track Record
What we predicted for this card, and what actually happened. We publish misses as well as hits. Anchored 2026-03-27 · at $10.00 · 170 days ago.
| Horizon | We predicted | Actual | Error |
|---|---|---|---|
| Day 7 | $10.73 | $10.57 | -1.5% |
| Day 30 | $10.79 | $13.33 | +23.5% |
| Day 90 | $11.05 | $10.00 | -9.5% |
Signal Analysis
HOLD
Conviction 50/100 · Target $4.43 · Range $3.99–$4.87 · over 30d
Mixed signals. Monitor for clearer direction.
Recent Price History
$4.00
$4.00
$4.00
$4.00
$4.50
$4.50
$4.50
Frequently Asked Questions
How much is Mastemon worth?
Mastemon is currently $4.50 on TCGplayer for the Hackers' Slumber printing. Prices update daily from live marketplace data.
Is Mastemon going up or down in price?
Our 30-day forecast for Mastemon is $4.43, with a stable trend (data confidence: Something's Brewing).