Storyline
Peter creates a potion that will rid him of his powers. Upon drinking the potion, he finds that he's bitten off more than he can chew as he has grown four extra arms!
Amazing Spider-Man #100
Amazing Spider-Man #100 value by CGC grade ranges from
$50
to
$4,035.
Amazing Spider-Man #100
Value & Price Guide by CGC Grade
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Grade
Fair Value
Previous issue
Amazing Spider-Man #99
Current
Amazing Spider-Man #100
Next issue
Amazing Spider-Man #101
Compare nearby issues to spot how value and grade behavior change from issue to issue.
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If this still feels unclear, that’s not your fault
Amazing Spider-Man #100 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.
Quick Insights on Amazing Spider-Man #100 in 2026
When was the last recorded sale for Amazing Spider-Man #100?
The last recorded sale was a CGC 6.5 for $165 on 03/30/2026 at eBay.
What was the highest sale recorded for Amazing Spider-Man #100?
The highest recorded sale was a CGC 9.8 for $16,800 on 11/21/2021 at Heritage Auctions [1].
What was the lowest sale recorded for Amazing Spider-Man #100?
The lowest recorded sale was a CGC 3.5 for $20 on 09/13/2012 at eBay.
Which grade has the best annual growth for Amazing Spider-Man #100?
A CGC 3.5 shows the highest inflation-adjusted CAGR at 8.8% over 2012–2025 (13 years).
How often does Amazing Spider-Man #100 sell?
Average days to sell vary by grade (~every 38–2357 days by grade), ranging from CGC 8.0 every 38 days to CGC 2.0 every 2357 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.