With Emperor D'Ken threatening to destroy the universe while trying to utilize the power of the M'Kraan Crystal, the X-Men and the Starjammers discover that when the specific stars come into alignment, the crystal will become available to D'Ken.
Sign up free to see estimated worth (fair value), annual growth, last sale, time-based trends, and liquidity for all grades.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 697 | 720 | -0.0% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| -2.5% | 22 | Weak |
| 1 Year Avg (7 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 676 | 770 | 0 |
| Last Sale (Feb 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 770 | 89 | 90 |
| All Time Low (2013) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 275 | 1710 | 59.2% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| -11.8% | 1 | 0.9 |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 232 | 294 | 0.8% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| -1.7% | 23 | Weak |
| 1 Year Avg (4 sold) |
90 Day Avg (2 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 209 | 240 | 250 |
| Last Sale (Mar 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 250 | 54 | 158 |
| All Time Low (2014) |
All Time High (2023) |
Down ATH (%) |
|---|---|---|
| 116 | 458 | 49.3% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 7.0% | 2 | 1.1 |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 141 | 235 | 0.9% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| -1.6% | 23 | Weak |
| 1 Year Avg (4 sold) |
90 Day Avg (3 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 148 | 142 | 130 |
| Last Sale (Mar 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 130 | 51 | 166 |
| All Time Low (2013) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 32 | 255 | 44.7% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 30.8% | 3 | 1.3 |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 115 | 209 | 3.2% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 0.7% | 21 | Moderate |
| 1 Year Avg (6 sold) |
90 Day Avg (1 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 115 | 115 | 115 |
| Last Sale (Mar 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 115 | 65 | 116 |
| All Time Low (2015) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 31 | 216 | 46.8% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| -48.6% | 1 | 0.5 |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 84 | 145 | 6.0% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 3.5% | 18 | Moderate |
| 1 Year Avg (8 sold) |
90 Day Avg (3 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 81 | 88 | 0 |
| Last Sale (Jan 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 94 | 71 | 92 |
| All Time Low (2017) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 23 | 140 | 40.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 116.0% | 3 | 2.2 |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 21 | 89 | 8.8% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.5% | 9 | Weak |
| 1 Year Avg (0 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 0 | 0 | 0 |
| Last Sale (Sep 2024) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 21 | 140 | 26 |
| All Time Low (2015) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 13 | 100 | 79.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | 0.0 |
Loading sales chart & history...
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 60 | 0 | 8.5% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.0% | 9 | Moderate |
| 1 Year Avg (1 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 60 | 0 | 0 |
| Last Sale (Apr 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 60 | 203 | 16 |
| All Time Low (2017) |
All Time High (2023) |
Down ATH (%) |
|---|---|---|
| 23 | 106 | 43.4% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | 0.0 |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
No available listings at the moment.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 27 | 0 | 0.0% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 0.0% | 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 2022) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 27 | 101 | 2 |
| All Time Low (2022) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 27 | 41 | 34.1% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | NA |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
No available listings at the moment.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| - | - | - |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| - | - | - |
| 1 Year Avg ( sold) |
90 Day Avg ( sold) |
30 Day Avg ( sold) |
|---|---|---|
| - | - | - |
| Last Sale (-) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| - | - | 0 |
| All Time Low (-) |
All Time High (-) |
Down ATH (%) |
|---|---|---|
| - | - | - |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| - | 0 | - |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
No available listings at the moment.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| - | - | - |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| - | - | - |
| 1 Year Avg ( sold) |
90 Day Avg ( sold) |
30 Day Avg ( sold) |
|---|---|---|
| - | - | - |
| Last Sale (-) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| - | - | 0 |
| All Time Low (-) |
All Time High (-) |
Down ATH (%) |
|---|---|---|
| - | - | - |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| - | 0 | - |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
No available listings at the moment.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| - | - | - |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| - | - | - |
| 1 Year Avg ( sold) |
90 Day Avg ( sold) |
30 Day Avg ( sold) |
|---|---|---|
| - | - | - |
| Last Sale (-) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| - | - | 0 |
| All Time Low (-) |
All Time High (-) |
Down ATH (%) |
|---|---|---|
| - | - | - |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| - | 0 | - |
Loading sales chart & history...
🔄 Updated daily - new comics added every 24 hours!
We may earn a small commission on purchases made through links to eBay.
No available listings at the moment.
X-Men #108 is a perfect example of why comic buying decisions feel harder than they should.
Some grades quietly compound while others stall. Price can look reasonable and still be misleading. And what feels “stable” on a price guide often hides risk that only shows up later.
I struggled with this for years — even on iconic books like this one.
The issue wasn’t access to more data. It was misreading the signals that actually matter when deciding if — and how — to buy.
I documented the framework I now use to make these calls — the same thinking behind Underval’s fair-value logic.
How to stop misreading the comic market before it costs you.
The last recorded sale was a CGC 4.0 for $34 on 03/21/2026 at eBay.
The highest recorded sale was a CGC 9.8 for $1,710 on 09/02/2021 at eBay.
The lowest recorded sale was a CGC 5.5 for $10 on 04/15/2022 at eBay.
A CGC 5.5 shows the highest inflation-adjusted CAGR at 19.1% over 2016–2024 (8 years).
Average days to sell vary by grade (~every 51–1168 days by grade), ranging from CGC 9.4 every 51 days to CGC 4.5 every 1168 days.
Search by title and issue to explore market data, sales history, and real-time pricing trends for each grade.
Gain insight into key metrics such as Fair Value, Compound Annual Growth Rate (CAGR), and time-based average sale prices by issue and grade.
Quickly find comics like X-Men #108 priced below fair value across the web through auction sites like eBay, based on recent market data.
Join hundreds of collectors already using 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.
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.
Fair value blends recent realized sales with longer-term trends, outlier filtering, and grade-level liquidity. It’s an informational estimate, not an offer.
Values update as new sales appear. Each grade’s “Updated on” date reflects the most recent sale we’ve matched for that grade.
We track Universal CGC-graded copies across common scale points (e.g., 0.5–10). Availability varies by issue and observed market activity.
No. Underval provides data and estimates for research purposes only. Always do your own diligence before buying or selling.
Estimated worth (Fair Value) is $697
based on 90 sales over ~22 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 9.8 value, CGC 9.8 price, X-Men #108 worth.
Estimated worth (Fair Value) is $232
based on 158 sales over ~23 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 9.6 value, CGC 9.6 price, X-Men #108 worth.
Estimated worth (Fair Value) is $141
based on 166 sales over ~23 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 9.4 value, CGC 9.4 price, X-Men #108 worth.
Estimated worth (Fair Value) is $115
based on 116 sales over ~21 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 9.2 value, CGC 9.2 price, X-Men #108 worth.
Estimated worth (Fair Value) is $91
based on 85 sales over ~21 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 9.0 value, CGC 9.0 price, X-Men #108 worth.
Estimated worth (Fair Value) is $84
based on 92 sales over ~18 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 8.5 value, CGC 8.5 price, X-Men #108 worth.
Estimated worth (Fair Value) is $41
based on 42 sales over ~10 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 8.0 value, CGC 8.0 price, X-Men #108 worth.
Estimated worth (Fair Value) is $54
based on 31 sales over ~23 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 7.5 value, CGC 7.5 price, X-Men #108 worth.
Estimated worth (Fair Value) is $21
based on 26 sales over ~9 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 7.0 value, CGC 7.0 price, X-Men #108 worth.
Estimated worth (Fair Value) is $60
based on 16 sales over ~9 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 6.5 value, CGC 6.5 price, X-Men #108 worth.
Estimated worth (Fair Value) is $50
based on 11 sales over ~13 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 6.0 value, CGC 6.0 price, X-Men #108 worth.
Estimated worth (Fair Value) is $59
based on 9 sales over ~8 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 5.5 value, CGC 5.5 price, X-Men #108 worth.
Estimated worth (Fair Value) is $29
based on 4 sales over ~5 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 5.0 value, CGC 5.0 price, X-Men #108 worth.
Estimated worth (Fair Value) is $48
based on 3 sales over ~6 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 4.5 value, CGC 4.5 price, X-Men #108 worth.
Estimated worth (Fair Value) is $34
based on 3 sales over ~4 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 4.0 value, CGC 4.0 price, X-Men #108 worth.
Estimated worth (Fair Value) is $27
based on 2 sales over ~1 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #108 CGC 3.5 value, CGC 3.5 price, X-Men #108 worth.
Legal Disclaimer
Underval is a platform designed to provide information about the
potential value of comic books based on data analysis. We do not provide investment advice, and any information
provided on our platform is for informational purposes only. While we strive to offer accurate and reliable
data,
the decision to purchase any comic book should be based on your own research and judgment. Underval does not
guarantee the accuracy, completeness, or reliability of any information provided, and we shall not be held
liable
for any actions taken based on the content available on our platform. By using Underval, you acknowledge and
agree
to these terms.
