As of Nov 14, 2026, the Japanese Promos 1998-99 · PSA 8 stands at 107.06, down 1.2% in 30 days (14 constituents).
Top holdings
by weight- Snap Squirtle · PSA 824.8%
- Snap Chansey · PSA 820.1%
- Snap Articuno · PSA 813.7%
- Ancient Mew I · PSA 811.8%
- Snap Pikachu · PSA 87.7%
Top 5 hold 78.1% of index weight across 14 constituents.
Index value over time
Weekly index level. Pro members can view and export the complete recorded history. Constituents are cap-weighted with the divisor reset on each monthly rebalance.
Constituents
Every atom in the index, cap-weighted and dampened by sales evidence. Follow a card name to drill into the underlying card detail.
- 1Snap Squirtle- 64 Mario Stadium Best Photo Contest · PSA 8 · $1.16M24.8%·0.0%
- 2Snap Chansey- 64 Mario Stadium Best Photo Contest · PSA 8 · $940.5K20.1%·0.0%
- 3Snap Articuno- 64 Mario Stadium Best Photo Contest · PSA 8 · $637.1K13.7%·0.0%
- 4Ancient Mew I- "Nintedo" Error · PSA 8 · $551.1K11.8%↓0.6%
- 5Snap Pikachu- Trainer Magazine Vol. 1 · PSA 8 · $359.4K7.7%·0.0%
- 6Snap Charmander- 64 Mario Stadium Best Photo Contest · PSA 8 · $276.5K5.9%·0.0%
- 7Grand Party Trainer- Double Black Star · PSA 8 · $222.3K4.8%↓1.0%
- 8Ancient Mew IIancient-mew-ii-japanese-promos-1998-99-p-ancientmewii-666084 · PSA 8 · $113.4K2.4%·0.0%
- 9Ancient Mew Iancient-mew-i-japanese-promos-1998-99-p-ancientmewi-666082 · PSA 8 · $106.7K2.3%·0.0%
- 10Psyduck- Natta Wake Vol. 2 · PSA 8 · $104.0K2.2%·0.0%
- 11Snap Koffing- 64 Mario Stadium Best Photo Contest · PSA 8 · $97.5K2.1%·0.0%
- 12Venusaur-Holo- Game Boy · PSA 8 · $84.5K1.8%↓0.1%
- 13Mankey-Glossy- Natta Wake Vol. 1 · PSA 8 · $17.6K0.4%↓1.0%
- 141999 Challenge Road- Tropical Mega Battle · PSA 8 · $180.0%·0.0%
Rebalances
Most recent weekly rebalance events. The divisor is reset on each event so the index level remains continuous through composition changes; subsequent moves are price-driven.
- Nov 14, 2026divisor43,650→43,654Δcap0.0%Added (0)NoneRemoved (0)None
- Nov 7, 2026divisor43,953→43,812Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 24, 2026divisor44,621→44,623Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 17, 2026divisor45,331→45,331Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 10, 2026divisor71,874→71,874Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 3, 2026divisor71,421→71,511Δcap0.1%Added (0)NoneRemoved (0)None
Methodology
Cap-weighted from confidence-scored fair values, rebalanced monthly with continuous divisor accounting.
Read the full methodologyParent set
Japanese Promos 1998-99Set total cap$23.59MCap-weighted, with each constituent dampened by the sales evidence behind its fair value so noisy inputs move the index less. Weekly rebalances with continuous-divisor accounting, so population growth and membership changes never move the level: only price action does. A constituent needs a fair value and a non-zero graded population; sales evidence adjusts its weight rather than gating its inclusion. Per-grade series isolate one tier, composites span PSA 7-10. All values are USD-denominated, base 100 at inception.
Related
Other indices that share this print run or this grade tier, plus the parent set.
Other grades · Japanese Promos 1998-99
PSA 8 · Other print runs
No other print runs at this grade yet.













