Storyline
GOD SPARE THE CHILD... Kitty Pryde has been offered scholarships at both the Xavier Institute and Emma Frost's Massachusetts Academy. Where will she go? Plus, the X-Men engage...the Hellfire Club!
GOD SPARE THE CHILD... Kitty Pryde has been offered scholarships at both the Xavier Institute and Emma Frost's Massachusetts Academy. Where will she go? Plus, the X-Men engage...the Hellfire Club!
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Sales history indicates high liquidity, with sales occurring on average every 14 days.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 482 | 1206 | 5.0% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 2.4% | 22 | Moderate |
| 1 Year Avg (25 sold) |
90 Day Avg (6 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 456 | 508 | 485 |
| Last Sale (Mar 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 485 | 14 | 553 |
| All Time Low (2009) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 59 | 2150 | 77.6% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| -46.3% | 5 | 0.5 |
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Sales history indicates high liquidity, with sales occurring on average every 17 days.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 333 | 574 | 7.3% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 4.6% | 24 | Moderate |
| 1 Year Avg (33 sold) |
90 Day Avg (10 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 319 | 308 | 449 |
| Last Sale (Mar 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 449 | 17 | 507 |
| All Time Low (2009) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 47 | 1440 | 76.9% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 84.6% | 10 | 1.8 |
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Sales history indicates high liquidity, with sales occurring on average every 24 days.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 246 | 516 | 7.9% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.3% | 21 | Weak |
| 1 Year Avg (20 sold) |
90 Day Avg (5 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 241 | 252 | 240 |
| Last Sale (Mar 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 240 | 24 | 320 |
| All Time Low (2008) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 29 | 1140 | 78.4% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 31.3% | 5 | 1.3 |
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Sales history indicates high liquidity, with sales occurring on average every 19 days.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 210 | 287 | 6.7% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 4.0% | 14 | Weak |
| 1 Year Avg (12 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 210 | 209 | 0 |
| Last Sale (Feb 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 209 | 19 | 263 |
| All Time Low (2017) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 50 | 785 | 73.2% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| -82.2% | 1 | 0.2 |
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Sales history indicates high liquidity, with sales occurring on average every 23 days.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 188 | 308 | 14.0% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 11.2% | 15 | Weak |
| 1 Year Avg (12 sold) |
90 Day Avg (3 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 185 | 193 | 0 |
| Last Sale (Feb 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 190 | 23 | 231 |
| All Time Low (2011) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 27 | 624 | 69.9% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| -31.6% | 3 | 0.7 |
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| Fair Value | Market Ask | CAGR |
|---|---|---|
| 123 | 445 | 7.4% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 4.7% | 15 | Weak |
| 1 Year Avg (7 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 132 | 90 | 0 |
| Last Sale (Jan 2026) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 90 | 57 | 95 |
| All Time Low (2015) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 31 | 404 | 69.6% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| -40.0% | 1 | 0.6 |
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| Fair Value | Market Ask | CAGR |
|---|---|---|
| 132 | 177 | 12.2% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 9.1% | 11 | None/Very Weak |
| 1 Year Avg (4 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 132 | 0 | 0 |
| Last Sale (Jul 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 130 | 103 | 42 |
| All Time Low (2014) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 35 | 288 | 54.2% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | 0.0 |
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| Fair Value | Market Ask | CAGR |
|---|---|---|
| 115 | 0 | 8.7% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.4% | 10 | None/Very Weak |
| 1 Year Avg (3 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 115 | 0 | 0 |
| Last Sale (Nov 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 125 | 90 | 43 |
| All Time Low (2015) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 50 | 655 | 82.4% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | 0.0 |
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| Fair Value | Market Ask | CAGR |
|---|---|---|
| 68 | 0 | 14.9% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 10.3% | 5 | Strong |
| 1 Year Avg (0 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 0 | 0 | 0 |
| Last Sale (Nov 2024) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 68 | 960 | 3 |
| All Time Low (2019) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 34 | 75 | 9.3% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | NA |
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| Fair Value | Market Ask | CAGR |
|---|---|---|
| 42 | 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 2024) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 42 | NA | 1 |
| All Time Low (2024) |
All Time High (2024) |
Down ATH (%) |
|---|---|---|
| 42 | 42 | 0.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | NA |
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No available listings at the moment.
| Fair Value | Market Ask | CAGR |
|---|---|---|
| 40 | 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 (Jul 2023) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 40 | NA | 1 |
| All Time Low (2023) |
All Time High (2023) |
Down ATH (%) |
|---|---|---|
| 40 | 40 | 0.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | NA |
Loading sales chart & history...
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No available listings at the moment.
X-Men #129 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 8.0 for $145 on 03/21/2026 at eBay.
The highest recorded sale was a CGC 9.8 for $6,600 on 05/09/2021 at eBay.
The lowest recorded sale was a CGC 5.5 for $10 on 08/21/2005 at Heritage Auctions [1].
A CGC 4.5 shows the highest inflation-adjusted CAGR at 13.8% over 2016–2024 (8 years).
Average days to sell vary by grade (~every 14–960 days by grade), ranging from CGC 9.6 every 14 days to CGC 3.0 every 960 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 #129 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 $1519
based on 223 sales over ~24 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 9.8 value, CGC 9.8 price, X-Men #129 worth.
Estimated worth (Fair Value) is $482
based on 553 sales over ~22 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 9.6 value, CGC 9.6 price, X-Men #129 worth.
Estimated worth (Fair Value) is $333
based on 507 sales over ~24 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 9.4 value, CGC 9.4 price, X-Men #129 worth.
Estimated worth (Fair Value) is $246
based on 320 sales over ~21 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 9.2 value, CGC 9.2 price, X-Men #129 worth.
Estimated worth (Fair Value) is $210
based on 263 sales over ~14 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 9.0 value, CGC 9.0 price, X-Men #129 worth.
Estimated worth (Fair Value) is $188
based on 231 sales over ~15 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 8.5 value, CGC 8.5 price, X-Men #129 worth.
Estimated worth (Fair Value) is $144
based on 164 sales over ~14 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 8.0 value, CGC 8.0 price, X-Men #129 worth.
Estimated worth (Fair Value) is $132
based on 115 sales over ~12 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 7.5 value, CGC 7.5 price, X-Men #129 worth.
Estimated worth (Fair Value) is $123
based on 95 sales over ~15 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 7.0 value, CGC 7.0 price, X-Men #129 worth.
Estimated worth (Fair Value) is $132
based on 42 sales over ~11 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 6.5 value, CGC 6.5 price, X-Men #129 worth.
Estimated worth (Fair Value) is $115
based on 43 sales over ~10 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 6.0 value, CGC 6.0 price, X-Men #129 worth.
Estimated worth (Fair Value) is $101
based on 18 sales over ~21 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 5.5 value, CGC 5.5 price, X-Men #129 worth.
Estimated worth (Fair Value) is $50
based on 12 sales over ~8 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 5.0 value, CGC 5.0 price, X-Men #129 worth.
Estimated worth (Fair Value) is $100
based on 17 sales over ~8 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 4.5 value, CGC 4.5 price, X-Men #129 worth.
Estimated worth (Fair Value) is $150
based on 8 sales over ~3 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 4.0 value, CGC 4.0 price, X-Men #129 worth.
Estimated worth (Fair Value) is $49
based on 3 sales over ~5 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 3.5 value, CGC 3.5 price, X-Men #129 worth.
Estimated worth (Fair Value) is $68
based on 3 sales over ~5 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 3.0 value, CGC 3.0 price, X-Men #129 worth.
Estimated worth (Fair Value) is $42
based on 1 sales over ~1 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 2.5 value, CGC 2.5 price, X-Men #129 worth.
Estimated worth (Fair Value) is $40
based on 1 sales over ~1 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: X-Men #129 CGC 2.0 value, CGC 2.0 price, X-Men #129 worth.
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data,
the decision to purchase any comic book should be based on your own research and judgment. Underval does not
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