Professor Oak's New Theory

HeartGold & SoulSilver · #101

Uncommon

$0.73

7d:2.67%30d:1.35%

PSA 10 $1,000PSA 9 $25

Professor Oak's New Theory · Normal PriceRaw (USD)

$0.73

1.35%1M

7d:2.67%·30d:1.35%·90d:19.78%

HIGH 1M

$0.75

-2.7%

LOW 1M

$0.73

+0%

PSA 10

$1,000

PSA 9

$25

Views

Era

HeartGold & SoulSilver

Set

HeartGold & SoulSilver

Card number

101

Recent price history

Date	Price	Change
Oct 19, 2026	$0.73	No change
Oct 18, 2026	$0.73	2.67%
Oct 12, 2026	$0.75	No change
Oct 5, 2026	$0.75	1.35%
Sep 19, 2026	$0.74	—

Professor Oak's New Theory is card #101 from the HeartGold & SoulSilver set, in the HeartGold & SoulSilver era. Its current price in Raw condition is $0.73, with a -2.67% change over the last 7 days.