Professor's Letter

XY Breakthrough (2015) · Pokémon · 146/162 · Uncommon · art by 5ban Graphics


Professor's Letter

$0.98

TCGplayer market price · Reverse Holofoil printing

As of Sep 3. Unchanged since Aug 29.

7d-4.8%30d-5.8%90d-11.7%1y-2.0%
High and lowTCGplayer market price, daily

939 days tracked · 128 distinct prices · since Feb 8 2024

Tracked high$1.23Aug 17 2024
Tracked low$0.87Mar 4 2025
Vs tracked high20% below
Cheaper than today23% of 939 days

Reverse Holofoil printing.

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Price trend

$1.05$0.98$1.00$1.02$1.04$0.98
Aug 28, 2026Aug 30, 2026Sep 1, 2026Sep 3, 2026

Reverse Holofoil · last 7 days · daily · $0.98 to $1.05 · the price changed once in this window.

$1.05$0.98$1.00$1.02$1.04$0.98
Aug 4, 2026Aug 14, 2026Aug 24, 2026Sep 3, 2026

Reverse Holofoil · last 31 days · daily · $0.98 to $1.05 · the price changed 3 times in this window.

$1.11$0.98$1.00$1.05$0.98
Jun 5, 2026Jul 5, 2026Aug 4, 2026Sep 3, 2026

Reverse Holofoil · last 90 days · one point per 2 days · $0.98 to $1.11 · the price changed 9 times in this window.

$1.16$1.00$1.05$1.10$0.98
Sep 4, 2025Jan 3, 2026May 4, 2026Sep 3, 2026

Reverse Holofoil · last year · one point per week · $0.97 to $1.16.

$1.23$0.87$1.00$1.10$0.98
Feb 8, 2024Dec 16, 2024Oct 25, 2025Sep 3, 2026

Reverse Holofoil · one point per week · $0.87 to $1.23. Weekly points begin Feb 8, 2024; the card itself dates from 2015.

TCGplayer market price · Reverse Holofoil printing · through Sep 3

How this chart is drawn

One value a day. The 1Y and MAX views show one point a week.

TCGplayer's own chart is drawn per condition, so it can differ from this one.

Compared with its group

Vs its group
~30d-8.3 pts~90d-23.8 pts

A gap in percentage points: this card's change minus the typical change of Pokémon cards from sets released 2000-2015 (ungraded, English), over each card's own window rather than an exact 30 or 90 days. On ~30d: this card -5.8%, the typical card +2.5%. On ~90d: this card -11.7%, the typical card +12.1%. The group spans every price level, so it is an era-and-format population, not a set of comparable cards.

Live market

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Prices are TCGplayer market data, updated daily. Card names and images © their respective publishers. See how market signals are derived.