Storyline
"This man...this monster!" You can't call yourself a fan of Ben Grimm, the ever-lovin' blue-eyed Thing, if you haven't read this issue. 40 years later and it's still one of the greatest Thing stories ever created.
Fantastic Four #51
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Fantastic Four #51
Comic Price Guide by CGC Grade
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Fantastic Four #51
CGC Grade 8.5
CGC Grade 8.5
| Fair Value | Market Value | CAGR |
|---|---|---|
| 375 | 0 | 7.8% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 4.9% | 21 | Strong |
| 1 Year Avg (6 sold) |
90 Day Avg (2 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 369 | 369 | 263 |
| Last Sale (Oct 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 263 | 126 | 62 |
| All Time Low (2004) |
All Time High (2023) |
Down ATH (%) |
|---|---|---|
| 77 | 650 | 42.3% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 78.7% | 4 | 1.8 |
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Fantastic Four #51
CGC Grade 8.0
CGC Grade 8.0
| Fair Value | Market Value | CAGR |
|---|---|---|
| 299 | 628 | 9.0% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 6.2% | 22 | Moderate |
| 1 Year Avg (4 sold) |
90 Day Avg (2 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 287 | 300 | 204 |
| Last Sale (Oct 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 204 | 135 | 62 |
| All Time Low (2003) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 43 | 660 | 54.7% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 69.2% | 4 | 1.7 |
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Fantastic Four #51
CGC Grade 7.5
CGC Grade 7.5
| Fair Value | Market Value | CAGR |
|---|---|---|
| 255 | 311 | 8.0% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.0% | 12 | Moderate |
| 1 Year Avg (4 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 268 | 250 | 0 |
| Last Sale (Aug 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 250 | 128 | 37 |
| All Time Low (2018) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 90 | 402 | 36.6% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 33.3% | 3 | 1.3 |
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Fantastic Four #51
CGC Grade 7.0
CGC Grade 7.0
| Fair Value | Market Value | CAGR |
|---|---|---|
| 195 | 300 | 8.9% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 6.0% | 14 | Strong |
| 1 Year Avg (3 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 215 | 191 | 0 |
| Last Sale (Aug 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 191 | 163 | 33 |
| All Time Low (2016) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 41 | 266 | 26.7% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 75.0% | 3 | 1.8 |
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Fantastic Four #51
CGC Grade 6.5
CGC Grade 6.5
| Fair Value | Market Value | CAGR |
|---|---|---|
| 190 | 188 | 12.4% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 9.3% | 14 | Moderate |
| 1 Year Avg (6 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 190 | 0 | 0 |
| Last Sale (Jul 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 180 | 122 | 43 |
| All Time Low (2014) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 26 | 295 | 35.6% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 125.8% | 5 | 2.3 |
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Fantastic Four #51
CGC Grade 6.0
CGC Grade 6.0
| Fair Value | Market Value | CAGR |
|---|---|---|
| 101 | 0 | 4.9% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 2.0% | 12 | Moderate |
| 1 Year Avg (1 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 80 | 0 | 0 |
| Last Sale (Feb 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 80 | 102 | 43 |
| All Time Low (2016) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 33 | 329 | 69.3% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| -68.4% | 1 | 0.3 |
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Fantastic Four #51
CGC Grade 5.0
CGC Grade 5.0
| Fair Value | Market Value | CAGR |
|---|---|---|
| 123 | 240 | 8.0% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.0% | 12 | Strong |
| 1 Year Avg (4 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 124 | 0 | 0 |
| Last Sale (Apr 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 94 | 139 | 31 |
| All Time Low (2017) |
All Time High (2023) |
Down ATH (%) |
|---|---|---|
| 29 | 174 | 29.3% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 50.0% | 3 | 1.5 |
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Fantastic Four #51
CGC Grade 4.0
CGC Grade 4.0
| Fair Value | Market Value | CAGR |
|---|---|---|
| 100 | 575 | 5.9% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 1.6% | 6 | Moderate |
| 1 Year Avg (5 sold) |
90 Day Avg (2 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 82 | 88 | 100 |
| Last Sale (Oct 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 100 | 125 | 20 |
| All Time Low (2024) |
All Time High (2023) |
Down ATH (%) |
|---|---|---|
| 37 | 109 | 8.3% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 114.3% | 5 | 2.1 |
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Fantastic Four #51
CGC Grade 3.0
CGC Grade 3.0
| Fair Value | Market Value | CAGR |
|---|---|---|
| 83 | 0 | 19.7% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 13.7% | 4 | Strong |
| 1 Year Avg (0 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 0 | 0 | 0 |
| Last Sale (Mar 2024) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 80 | 344 | 5 |
| All Time Low (2020) |
All Time High (2024) |
Down ATH (%) |
|---|---|---|
| 30 | 80 | -3.8% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | 0.0 |
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Fantastic Four #51
CGC Grade 2.5
CGC Grade 2.5
Sales data shows unusual volume, with a 333.3% change in year to date sales volume compared to prior years.
| Fair Value | Market Value | CAGR |
|---|---|---|
| 63 | 0 | 9.2% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 6.2% | 13 | Moderate |
| 1 Year Avg (1 sold) |
90 Day Avg (1 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 50 | 50 | 50 |
| Last Sale (Oct 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 50 | 1244 | 5 |
| All Time Low (2012) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 16 | 100 | 37.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 333.3% | 1 | 4.3 |
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Fantastic Four #51
CGC Grade 2.0
CGC Grade 2.0
| Fair Value | Market Value | CAGR |
|---|---|---|
| 49 | 0 | 0.0% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| -2.9% | 1 | None/Very Weak |
| 1 Year Avg (0 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 0 | 0 | 0 |
| Last Sale (Aug 2024) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 49 | NA | 1 |
| All Time Low (2024) |
All Time High (2024) |
Down ATH (%) |
|---|---|---|
| 49 | 49 | 0.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | 0.0 |
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Quick Insights on Fantastic Four #51 in 2025
When was the last recorded sale for Fantastic Four #51?
The last recorded sale was a CGC 2.5 for $50 on 10/25/2025 at eBay.
What was the highest sale recorded for Fantastic Four #51?
The highest recorded sale was a CGC 9.6 for $10,158 on 11/18/2010 at Heritage Auctions [1].
What was the lowest sale recorded for Fantastic Four #51?
The lowest recorded sale was a CGC 2.5 for $16 on 03/13/2012 at Comic Connect.
Which grade has the best annual growth for Fantastic Four #51?
A CGC 9.4 shows the highest inflation-adjusted CAGR at 12.0% over 2016–2025 (9 years).
How often does Fantastic Four #51 sell?
Average days to sell vary by grade (~every 102–1244 days by grade), ranging from CGC 6.0 every 102 days to CGC 2.5 every 1244 days.
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Frequently Asked Questions
What is Underval?
Underval is a free comic-book analytics and listings platform. We estimate fair value by grade, display annual growth rate, show recent sales and sales history, and surface active listings.
Where do your sales come from?
We aggregate public online sales from major marketplaces and auctions such as eBay and Heritage Auctions, then normalize and de-duplicate them by issue and grade.
How do you calculate “Estimated Worth (Fair Value)?”
Fair value blends recent realized sales with longer-term trends, outlier filtering, and grade-level liquidity. It’s an informational estimate, not an offer.
How often are values updated?
Values update as new sales appear. Each grade’s “Updated on” date reflects the most recent sale we’ve matched for that grade.
Which grades do you cover?
We track Universal CGC-graded copies across common scale points (e.g., 0.5–10). Availability varies by issue and observed market activity.
Do you offer investment advice?
No. Underval provides data and estimates for research purposes only. Always do your own diligence before buying or selling.
5 searches
Last searched: 2025-05-13
Price guide FAQ
Fair Value by CGC Grade — Fantastic Four #51
What is Fantastic Four #51 CGC 9.6 worth in 2025?
Estimated worth (Fair Value) is $4035
based on 6 sales over ~10 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 9.6 value, CGC 9.6 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 9.4 worth in 2025?
Estimated worth (Fair Value) is $4320
based on 8 sales over ~9 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 9.4 value, CGC 9.4 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 9.2 worth in 2025?
Estimated worth (Fair Value) is $1143
based on 21 sales over ~20 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 9.2 value, CGC 9.2 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 9.0 worth in 2025?
Estimated worth (Fair Value) is $340
based on 25 sales over ~20 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 9.0 value, CGC 9.0 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 8.5 worth in 2025?
Estimated worth (Fair Value) is $375
based on 62 sales over ~21 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 8.5 value, CGC 8.5 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 8.0 worth in 2025?
Estimated worth (Fair Value) is $299
based on 62 sales over ~22 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 8.0 value, CGC 8.0 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 7.5 worth in 2025?
Estimated worth (Fair Value) is $255
based on 37 sales over ~12 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 7.5 value, CGC 7.5 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 7.0 worth in 2025?
Estimated worth (Fair Value) is $195
based on 33 sales over ~14 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 7.0 value, CGC 7.0 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 6.5 worth in 2025?
Estimated worth (Fair Value) is $190
based on 43 sales over ~14 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 6.5 value, CGC 6.5 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 6.0 worth in 2025?
Estimated worth (Fair Value) is $101
based on 43 sales over ~12 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 6.0 value, CGC 6.0 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 5.5 worth in 2025?
Estimated worth (Fair Value) is $90
based on 15 sales over ~9 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 5.5 value, CGC 5.5 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 5.0 worth in 2025?
Estimated worth (Fair Value) is $123
based on 31 sales over ~12 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 5.0 value, CGC 5.0 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 4.5 worth in 2025?
Estimated worth (Fair Value) is $133
based on 18 sales over ~13 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 4.5 value, CGC 4.5 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 4.0 worth in 2025?
Estimated worth (Fair Value) is $100
based on 20 sales over ~6 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 4.0 value, CGC 4.0 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 3.5 worth in 2025?
Estimated worth (Fair Value) is $85
based on 11 sales over ~12 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 3.5 value, CGC 3.5 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 3.0 worth in 2025?
Estimated worth (Fair Value) is $83
based on 5 sales over ~4 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 3.0 value, CGC 3.0 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 2.5 worth in 2025?
Estimated worth (Fair Value) is $63
based on 5 sales over ~13 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 2.5 value, CGC 2.5 price, Fantastic Four #51 worth.
What is Fantastic Four #51 CGC 2.0 worth in 2025?
Estimated worth (Fair Value) is $49
based on 1 sales over ~1 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Fantastic Four #51 CGC 2.0 value, CGC 2.0 price, Fantastic Four #51 worth.
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