The First Appearance of Norman Osborn, the man who would be revealed to be the Green Goblin! The release of the Robot-Master! After Professor Mendel Stromm is let out of jail, Spider-Man keeps close tabs on his former foe. But what is Stromm's connection to Norman Osborn? And what is the Robot- Master planning in his new-found freedom?
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| Fair Value | Market Value | CAGR |
|---|---|---|
| 330 | 971 | 1.4% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| -1.2% | 23 | Moderate |
| 1 Year Avg (12 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 331 | 325 | 0 |
| Last Sale (Oct 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 325 | 83 | 102 |
| All Time Low (2017) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 131 | 1203 | 72.6% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 206.7% | 12 | 3.1 |
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| Fair Value | Market Value | CAGR |
|---|---|---|
| 387 | 413 | 6.4% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 3.6% | 20 | Moderate |
| 1 Year Avg (7 sold) |
90 Day Avg (3 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 376 | 350 | 475 |
| Last Sale (Dec 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 475 | 70 | 108 |
| All Time Low (2013) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 78 | 1050 | 63.1% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 38.6% | 7 | 1.4 |
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| Fair Value | Market Value | CAGR |
|---|---|---|
| 218 | 361 | 3.7% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 1.0% | 22 | Weak |
| 1 Year Avg (11 sold) |
90 Day Avg (3 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 239 | 212 | 170 |
| Last Sale (Nov 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 170 | 76 | 109 |
| All Time Low (2012) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 72 | 859 | 74.6% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 146.9% | 11 | 2.5 |
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| Fair Value | Market Value | CAGR |
|---|---|---|
| 208 | 404 | 7.3% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 4.5% | 21 | Weak |
| 1 Year Avg (12 sold) |
90 Day Avg (5 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 186 | 208 | 0 |
| Last Sale (Nov 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 208 | 72 | 108 |
| All Time Low (2004) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 43 | 666 | 68.8% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 162.5% | 12 | 2.6 |
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| Fair Value | Market Value | CAGR |
|---|---|---|
| 175 | 324 | 7.5% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 4.8% | 16 | Weak |
| 1 Year Avg (11 sold) |
90 Day Avg (2 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 164 | 150 | 0 |
| Last Sale (Oct 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 175 | 62 | 94 |
| All Time Low (2009) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 50 | 536 | 67.4% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 90.5% | 10 | 1.9 |
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| Fair Value | Market Value | CAGR |
|---|---|---|
| 140 | 255 | 8.2% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.0% | 10 | None/Very Weak |
| 1 Year Avg (9 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 116 | 140 | 0 |
| Last Sale (Sep 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 140 | 58 | 66 |
| All Time Low (2015) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 44 | 400 | 65.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 57.9% | 9 | 1.6 |
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| Fair Value | Market Value | CAGR |
|---|---|---|
| 130 | 216 | 8.6% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.7% | 14 | Weak |
| 1 Year Avg (8 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 114 | 130 | 0 |
| Last Sale (Oct 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 130 | 75 | 72 |
| All Time Low (2011) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 32 | 399 | 67.4% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 50.8% | 7 | 1.5 |
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| Fair Value | Market Value | CAGR |
|---|---|---|
| 104 | 197 | 4.3% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 1.4% | 13 | None/Very Weak |
| 1 Year Avg (14 sold) |
90 Day Avg (3 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 93 | 91 | 104 |
| Last Sale (Nov 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 104 | 77 | 65 |
| All Time Low (2015) |
All Time High (2021) |
Down ATH (%) |
|---|---|---|
| 40 | 288 | 63.9% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 256.9% | 14 | 3.6 |
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| Fair Value | Market Value | CAGR |
|---|---|---|
| 77 | 162 | 8.6% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 5.7% | 13 | Weak |
| 1 Year Avg (2 sold) |
90 Day Avg (1 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 102 | 55 | 0 |
| Last Sale (Oct 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 55 | 258 | 20 |
| All Time Low (2017) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 33 | 250 | 69.2% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 44.4% | 2 | 1.4 |
Loading sales chart & history...
| Fair Value | Market Value | CAGR |
|---|---|---|
| 72 | 104 | -0.9% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| -4.7% | 7 | None/Very Weak |
| 1 Year Avg (2 sold) |
90 Day Avg (1 sold) |
30 Day Avg (1 sold) |
|---|---|---|
| 70 | 72 | 72 |
| Last Sale (Dec 2025) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 72 | 230 | 12 |
| All Time Low (2020) |
All Time High (2022) |
Down ATH (%) |
|---|---|---|
| 49 | 125 | 42.4% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| 40.0% | 2 | 1.4 |
Loading sales chart & history...
| Fair Value | Market Value | CAGR |
|---|---|---|
| 63 | 0 | 22.6% |
| CAGR (Inflation Adj) |
Years Tracked | Correlation |
|---|---|---|
| 19.0% | 1 | Strong |
| 1 Year Avg (0 sold) |
90 Day Avg (0 sold) |
30 Day Avg (0 sold) |
|---|---|---|
| 0 | 0 | 0 |
| Last Sale (May 2020) |
Avg Days To Sale | Sales Tracked |
|---|---|---|
| 65 | 308 | 2 |
| All Time Low (2019) |
All Time High (2020) |
Down ATH (%) |
|---|---|---|
| 53 | 65 | 0.0% |
| Issue Volume (% YTD) |
Issue Volume (YTD) |
Relative Volume (YTD) |
|---|---|---|
| NA | 0 | 0.0 |
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No available listings at the moment.
The last recorded sale was a CGC 2.5 for $72 on 12/06/2025 at eBay.
The highest recorded sale was a CGC 9.8 for $31,200 on 09/12/2021 at Heritage Auctions [1].
The lowest recorded sale was a CGC 3.5 for $26 on 07/24/2017 at eBay.
A CGC 2.0 shows the highest inflation-adjusted CAGR at 10.8% over 2015–2024 (9 years).
Average days to sell vary by grade (~every 58–2192 days by grade), ranging from CGC 5.5 every 58 days to CGC 1.0 every 2192 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 Amazing Spider-Man #37 priced below fair value across the web through auction sites like eBay, based on recent market data.
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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 $21600
based on 2 sales over ~2 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 9.8 value, CGC 9.8 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $4320
based on 13 sales over ~13 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 9.6 value, CGC 9.6 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $2280
based on 30 sales over ~22 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 9.4 value, CGC 9.4 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $782
based on 44 sales over ~24 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 9.2 value, CGC 9.2 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $782
based on 67 sales over ~23 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 9.0 value, CGC 9.0 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $330
based on 102 sales over ~23 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 8.5 value, CGC 8.5 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $387
based on 108 sales over ~20 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 8.0 value, CGC 8.0 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $218
based on 109 sales over ~22 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 7.5 value, CGC 7.5 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $208
based on 108 sales over ~21 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 7.0 value, CGC 7.0 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $175
based on 94 sales over ~16 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 6.5 value, CGC 6.5 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $175
based on 67 sales over ~20 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 6.0 value, CGC 6.0 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $140
based on 66 sales over ~10 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 5.5 value, CGC 5.5 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $130
based on 72 sales over ~14 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 5.0 value, CGC 5.0 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $104
based on 65 sales over ~13 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 4.5 value, CGC 4.5 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $99
based on 64 sales over ~16 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 4.0 value, CGC 4.0 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $70
based on 37 sales over ~13 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 3.5 value, CGC 3.5 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $77
based on 20 sales over ~13 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 3.0 value, CGC 3.0 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $72
based on 12 sales over ~7 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 2.5 value, CGC 2.5 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $46
based on 9 sales over ~9 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 2.0 value, CGC 2.0 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $90
based on 2 sales over ~4 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 1.8 value, CGC 1.8 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $63
based on 2 sales over ~1 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 1.5 value, CGC 1.5 price, Amazing Spider-Man #37 worth.
Estimated worth (Fair Value) is $36
based on 2 sales over ~6 years
.
Informational estimate, not an offer.
Updated on
based on the last sale.
Also searched as: Amazing Spider-Man #37 CGC 1.0 value, CGC 1.0 price, Amazing Spider-Man #37 worth.
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