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Giant-Size X-Men #1
Giant-Size X-Men #1 worth by CGC grade ranges from $645 to $170,000.
Giant-Size X-Men #1
Value & Price Guide by CGC Grade
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Giant-Size X-Men #1
CGC Grade 9.8
CGC Grade 9.8
| Fair Value | Market Ask | Growth |
|---|---|---|
| 25904 | 26250 | 6.0% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 3.5% | 17 | Moderate |
| 1 Year Avg (9 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 25904 | 0 | 0 |
| Last Sale (Dec 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 26400 | 72 | 90 |
| All Time Low (2012) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 3806 | 72000 | 64.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | 0.0 |
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Giant-Size X-Men #1
CGC Grade 9.4
CGC Grade 9.4
| Fair Value | Market Ask | Growth |
|---|---|---|
| 5302 | 8047 | 3.6% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 1.0% | 24 | Moderate |
| 1 Year Avg (13 sold) |
90 Day Avg (5 sold) |
30 Day Avg (2 sold) |
|---|---|---|
| 5355 | 5312 | 5207 |
| Last Sale (Apr 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 5000 | 60 | 146 |
| All Time Low (2010) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 1135 | 16800 | 68.4% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 202.0% | 7 | 3.0 |
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Giant-Size X-Men #1
CGC Grade 9.0
CGC Grade 9.0
| Fair Value | Market Ask | Growth |
|---|---|---|
| 3908 | 7338 | 8.0% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.3% | 24 | Moderate |
| 1 Year Avg (19 sold) |
90 Day Avg (6 sold) |
30 Day Avg (2 sold) |
|---|---|---|
| 3782 | 4007 | 3950 |
| Last Sale (May 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 4400 | 72 | 124 |
| All Time Low (2025) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 195 | 9755 | 59.9% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 255.6% | 8 | 3.6 |
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Giant-Size X-Men #1
CGC Grade 8.5
CGC Grade 8.5
| Fair Value | Market Ask | Growth |
|---|---|---|
| 3251 | 5668 | 9.2% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 6.5% | 23 | Moderate |
| 1 Year Avg (17 sold) |
90 Day Avg (5 sold) |
30 Day Avg (3 sold) |
|---|---|---|
| 3135 | 3400 | 3217 |
| Last Sale (May 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 3200 | 60 | 142 |
| All Time Low (2010) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 388 | 7800 | 58.3% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 276.4% | 9 | 3.8 |
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Giant-Size X-Men #1
CGC Grade 7.5
CGC Grade 7.5
Past data shows a 5.9% annual growth rate over 24 years. Prices tend to move together over time based on the Strong correlation.
| Fair Value | Market Ask | Growth |
|---|---|---|
| 2487 | 3594 | 8.6% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.9% | 24 | Strong |
| 1 Year Avg (20 sold) |
90 Day Avg (6 sold) |
30 Day Avg (4 sold) |
|---|---|---|
| 2413 | 2522 | 2526 |
| Last Sale (May 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 2800 | 72 | 123 |
| All Time Low (2010) |
All Time High (2023) |
Down ATH (%) |
|---|---|---|
| 287 | 5290 | 53.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 458.1% | 10 | 5.6 |
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Giant-Size X-Men #1
CGC Grade 7.0
CGC Grade 7.0
Sales data shows unusual volume, with a 725.0% change in year to date sales volume compared to prior years.
| Fair Value | Market Ask | Growth |
|---|---|---|
| 2279 | 3773 | 10.0% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 7.3% | 21 | Moderate |
| 1 Year Avg (21 sold) |
90 Day Avg (7 sold) |
30 Day Avg (2 sold) |
|---|---|---|
| 2203 | 2316 | 2338 |
| Last Sale (May 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 2400 | 87 | 90 |
| All Time Low (2007) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 263 | 4440 | 48.7% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 725.0% | 11 | 8.2 |
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Giant-Size X-Men #1
CGC Grade 6.5
CGC Grade 6.5
| Fair Value | Market Ask | Growth |
|---|---|---|
| 1907 | 2667 | 10.3% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 7.5% | 23 | Moderate |
| 1 Year Avg (18 sold) |
90 Day Avg (4 sold) |
30 Day Avg (3 sold) |
|---|---|---|
| 1926 | 1913 | 1884 |
| Last Sale (May 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 2000 | 81 | 103 |
| All Time Low (2008) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 191 | 5160 | 63.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 260.0% | 8 | 3.6 |
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Giant-Size X-Men #1
CGC Grade 5.0
CGC Grade 5.0
Sales data shows unusual volume, with a 400.0% change in year to date sales volume compared to prior years.
| Fair Value | Market Ask | Growth |
|---|---|---|
| 1425 | 3067 | 14.5% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 11.5% | 13 | Weak |
| 1 Year Avg (26 sold) |
90 Day Avg (7 sold) |
30 Day Avg (3 sold) |
|---|---|---|
| 1405 | 1511 | 1358 |
| Last Sale (Apr 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 1425 | 69 | 71 |
| All Time Low (2013) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 218 | 3120 | 54.3% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 400.0% | 10 | 5.0 |
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Giant-Size X-Men #1
CGC Grade 3.0
CGC Grade 3.0
| Fair Value | Market Ask | Growth |
|---|---|---|
| 1202 | 1615 | 11.2% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 7.5% | 8 | None/Very Weak |
| 1 Year Avg (6 sold) |
90 Day Avg (3 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 1086 | 1209 | 1400 |
| Last Sale (Apr 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 1400 | 92 | 30 |
| All Time Low (2018) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 480 | 1785 | 32.7% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 36.4% | 5 | 1.4 |
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Giant-Size X-Men #1
CGC Grade 2.0
CGC Grade 2.0
| Fair Value | Market Ask | Growth |
|---|---|---|
| 1028 | 0 | -8.1% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| -10.4% | 3 | None/Very Weak |
| 1 Year Avg (5 sold) |
90 Day Avg (1 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 909 | 1140 | 1140 |
| Last Sale (May 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 1140 | 87 | 15 |
| All Time Low (2025) |
All Time High (2023) |
Down ATH (%) |
|---|---|---|
| 621 | 1389 | 26.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 140.0% | 4 | 2.4 |
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Giant-Size X-Men #1
CGC Grade 1.5
CGC Grade 1.5
| Fair Value | Market Ask | Growth |
|---|---|---|
| 805 | 1870 | -6.3% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| -8.7% | 3 | None/Very Weak |
| 1 Year Avg (4 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 773 | 870 | 0 |
| Last Sale (Mar 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 870 | 76 | 15 |
| All Time Low (2025) |
All Time High (2023) |
Down ATH (%) |
|---|---|---|
| 575 | 1200 | 32.9% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 200.0% | 3 | 3.0 |
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Giant-Size X-Men #1
CGC Grade 1.0
CGC Grade 1.0
| Fair Value | Market Ask | Growth |
|---|---|---|
| 766 | 0 | -3.5% |
| Growth (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| -6.0% | 3 | None/Very Weak |
| 1 Year Avg (6 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 754 | 802 | 0 |
| Last Sale (Mar 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 802 | 101 | 9 |
| All Time Low (2025) |
All Time High (2025) |
Down ATH (%) |
|---|---|---|
| 535 | 850 | 9.9% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 100.0% | 2 | 2.0 |
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Quick Insights on Giant-Size X-Men #1 in 2026
When was the last recorded sale for Giant-Size X-Men #1?
The last recorded sale was a CGC 8.5 for $3,200 on 05/13/2026 at eBay.
What was the highest sale recorded for Giant-Size X-Men #1?
The highest recorded sale was a CGC 9.9 for $170,000 on 06/28/2024 at Comic Connect.
What was the lowest sale recorded for Giant-Size X-Men #1?
The lowest recorded sale was a CGC 3.5 for $90 on 02/22/2009 at Heritage Auctions [1].
Which grade has the best annual growth for Giant-Size X-Men #1?
A CGC 3.5 shows the highest inflation-adjusted growth at 13.7% over 2009–2026 (17 years).
How often does Giant-Size X-Men #1 sell?
Average days to sell vary by grade (~every 60–242 days by grade), ranging from CGC 8.5 every 60 days to CGC 3.5 every 242 days.
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Gain insight into key metrics such as Fair Value, Compound Annual Growth Rate (CAGR), and time-based average sale prices by issue and grade.
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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.
173 searches
Last searched: 2026-05-16
Price guide FAQ
Fair Value by CGC Grade — Giant-Size X-Men #1
What is Giant-Size X-Men #1 CGC 9.9 worth in 2026?
Estimated worth (Fair Value) is $170000
based on 1 sales over ~1 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 9.9 value, CGC 9.9 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 9.8 worth in 2026?
Estimated worth (Fair Value) is $25904
based on 90 sales over ~17 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 9.8 value, CGC 9.8 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 9.6 worth in 2026?
Estimated worth (Fair Value) is $9065
based on 113 sales over ~24 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 9.6 value, CGC 9.6 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 9.4 worth in 2026?
Estimated worth (Fair Value) is $5302
based on 146 sales over ~24 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 9.4 value, CGC 9.4 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 9.2 worth in 2026?
Estimated worth (Fair Value) is $4098
based on 113 sales over ~24 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 9.2 value, CGC 9.2 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 9.0 worth in 2026?
Estimated worth (Fair Value) is $3908
based on 124 sales over ~24 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 9.0 value, CGC 9.0 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 8.5 worth in 2026?
Estimated worth (Fair Value) is $3251
based on 142 sales over ~23 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 8.5 value, CGC 8.5 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 8.0 worth in 2026?
Estimated worth (Fair Value) is $3003
based on 112 sales over ~23 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 8.0 value, CGC 8.0 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 7.5 worth in 2026?
Estimated worth (Fair Value) is $2487
based on 123 sales over ~24 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 7.5 value, CGC 7.5 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 7.0 worth in 2026?
Estimated worth (Fair Value) is $2279
based on 90 sales over ~21 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 7.0 value, CGC 7.0 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 6.5 worth in 2026?
Estimated worth (Fair Value) is $1907
based on 103 sales over ~23 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 6.5 value, CGC 6.5 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 6.0 worth in 2026?
Estimated worth (Fair Value) is $1893
based on 92 sales over ~23 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 6.0 value, CGC 6.0 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 5.5 worth in 2026?
Estimated worth (Fair Value) is $1495
based on 61 sales over ~21 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 5.5 value, CGC 5.5 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 5.0 worth in 2026?
Estimated worth (Fair Value) is $1425
based on 71 sales over ~13 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 5.0 value, CGC 5.0 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 4.5 worth in 2026?
Estimated worth (Fair Value) is $1292
based on 59 sales over ~14 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 4.5 value, CGC 4.5 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 4.0 worth in 2026?
Estimated worth (Fair Value) is $1255
based on 57 sales over ~16 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 4.0 value, CGC 4.0 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 3.5 worth in 2026?
Estimated worth (Fair Value) is $1176
based on 27 sales over ~17 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 3.5 value, CGC 3.5 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 3.0 worth in 2026?
Estimated worth (Fair Value) is $1202
based on 30 sales over ~8 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 3.0 value, CGC 3.0 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 2.5 worth in 2026?
Estimated worth (Fair Value) is $1022
based on 26 sales over ~9 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 2.5 value, CGC 2.5 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 2.0 worth in 2026?
Estimated worth (Fair Value) is $1028
based on 15 sales over ~3 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 2.0 value, CGC 2.0 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 1.8 worth in 2026?
Estimated worth (Fair Value) is $937
based on 7 sales over ~3 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 1.8 value, CGC 1.8 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 1.5 worth in 2026?
Estimated worth (Fair Value) is $805
based on 15 sales over ~3 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 1.5 value, CGC 1.5 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 1.0 worth in 2026?
Estimated worth (Fair Value) is $766
based on 9 sales over ~3 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 1.0 value, CGC 1.0 price, Giant-Size X-Men #1 worth.
What is Giant-Size X-Men #1 CGC 0.5 worth in 2026?
Estimated worth (Fair Value) is $645
based on 9 sales over ~3 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Giant-Size X-Men #1 CGC 0.5 value, CGC 0.5 price, Giant-Size X-Men #1 worth.
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