CGC Pop Reports Explained: Reading Comic Scarcity
CGC publishes census data on every comic graded. Learn to read it, calculate true scarcity at top grade, and predict price moves before the market.
The Lesson: Pop reports are public data on cgccomics.com. Most casual collectors never check them. The collectors who do consistently identify undervalued books before broader recognition — and avoid overgraded modern keys with bloated populations.
What the Pop Report Shows
For each comic, CGC publishes the count of every graded copy at every grade tier. A typical entry looks like:
Amazing Spider-Man #300 (1988)
CGC 9.9: 4
CGC 9.8: 1,844
CGC 9.6: 4,127
CGC 9.4: 5,890
CGC 9.2: 4,910
CGC 9.0: 3,720
Lower grades: 18,000+
The shape of the distribution matters as much as the absolute numbers. ASM #300 at 9.8 has 1,844 copies — sounds high until you see 18,000+ in mid grade.
Three Metrics to Calculate
CGC 9.8 count / Total graded.
ASM #300: 1,844 / 38,500 = 4.8%. A book under 5% gem rate has a stronger CGC 9.8 premium than one above 10%.
CGC 9.8 price × population scarcity at 9.9.
If 9.9 pop is < 1% of 9.8 pop, the 9.9 typically trades 5-15x the 9.8 price.
CGC publishes monthly delta — new submissions vs prior month.
Books with rapidly growing populations face price pressure. Books with flat populations are stable to appreciating.
Three Practical Plays
- Identify low-pop modern keys. Modern books with CGC 9.8 pop under 100 and a strong character are systematically underpriced.
- Avoid pop-bloat traps. Modern variants with 5,000+ CGC 9.8 copies will struggle to appreciate even if the character pops in a movie.
- Track 9.9 emergence. Books that just produced their first CGC 9.9 often see a 15-25% bump on the 9.8 within 6 months.
Browse Comics by Pop
Mint Condition tracks CGC 9.8 populations live for every comic in our database.
Browse Comics →