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The GrailHawk Blog

Get sharper at valuing cards.

Comps, grade premiums, population reports and market reading — the fundamentals that turn a collection into a portfolio.

Fundamentals6 min read

Reading eBay comps like a pro

Filtering noise from signal in sold listings — auction vs. BIN, shill bids, and private offers.

Jul 8, 2026Read →
Grading6 min read

Population reports 101

What pop counts do and don't tell you about scarcity — and how gem rate changes the math.

Jul 6, 2026Read →
Strategy7 min read

When to hold and when to flip

Reading momentum, reprint risk, and set rotation to time your exits.

Jul 4, 2026Read →
Grading6 min read

Graded vs. raw: what the grade premium really means

Why a slab can be worth 3× the raw card — and how to decide whether to buy graded, buy raw, or send it in yourself.

Jun 30, 2026Read →
Fundamentals7 min read

How to value a trading card

Comps, grade premiums, population and scarcity — the fundamentals of what a card is actually worth, in plain language.

Jun 18, 2026Read →