Holon Research Tower

22 cards · released 2005-10-28

Set value: $770.82
Typical card: $5.00
Most valuable: $149.99Vaporeon Delta Species

Set value is one of each card at its market price — 40 of 86 cards in this set carry one. It is what the singles would cost at today’s prices, not an appraisal, and it excludes sealed product. The typical card is the median, because one chase card pulls an average far away from what most of the set is worth.

Holon Research Tower singles

20 cards in the sample · rebased to 100 at 2026-06-10

30d: +1.9%
90d: +5.6%
1y: +5.6%
All: +5.6%
Level: 105.6

2026-06-102026-08-30

Weekly chain-linked index. Each step compares only cards priced in BOTH of the two weeks, so items appearing or delisting cannot move the line — 10.6% of a fixed basket went dark over the last eleven months, and a level computed over whoever reported today would follow that instead of prices. An item must clear $5 in both weeks of a step to count: without a floor, penny rounding dominates. The line is the longest unbroken run of weeks with enough matched pairs — a week too thin to measure truncates it rather than being bridged over. Scoped to this set, using the same construction as the market index. How this is built.

Cards

22 cards

Products with market price, 7- and 30-day change, distance below all-time high, days of recorded history and a 90-day price sparkline
Card	Market	7d	30d	vs high	Days
Vaporeon Delta Species030/086 Holo Rare	$149.99	0.0%	0.0%	0.0%	184
Mewtwo Delta Species019/086 Holo Rare	$93.50	—	—	—	45
Espeon Delta Species049/086 Holo Rare	$61.00	0.0%	—	—	28
Beedrill Delta Species010/086 Holo Rare	$49.99	0.0%	0.0%	0.0%	148
Tyranitar Delta Species020/086 Holo Rare	$47.47	0.0%	0.0%	-1.1%	214
Jolteon Delta Species038/086 Holo Rare	$43.89	0.0%	0.0%	—	56
Metagross Delta Species040/086 Holo Rare	$35.00	+75.0%	+75.0%	—	46
Mightyena Delta Species070/086 Holo Rare	$22.60	0.0%	0.0%	0.0%	105
Holons Magneton072/086 Holo Rare	$10.00	—	—	—	1
Crobat Delta Species011/086 Holo Rare	—	—	—	—	—
Dragonite Delta Species039/086 Holo Rare	—	—	—	—	—
Flareon Delta Species018/086 Holo Rare	—	—	—	—	20
Gardevoir Delta Species050/086 Holo Rare	—	—	—	—	8
Holons Electrode032/086 Holo Rare	—	—	—	—	35
Latias Delta Species041/086 Holo Rare	—	—	—	—	44
Latios Delta Species042/086 Holo Rare	—	—	—	—	166
Marowak Delta Species058/086 Holo Rare	—	—	—	—	101
Rayquaza Delta Species043/086 Holo Rare	—	—	—	—	43
Salamence Delta Species021/086 Holo Rare	—	—	—	—	—
Sandslash Delta Species057/086 Holo Rare	—	—	—	—	1
Starmie Delta Species029/086 Holo Rare	—	—	—	—	—
Umbreon Delta Species069/086 Holo Rare	—	—	—	—	24