UNDERVAL

Amazing Spider-Man #400

Amazing Spider-Man #400 worth by CGC grade ranges from $30 to $92 across tracked CGC grades. Compare values, recent sales, and long-term performance across every grade below.
Amazing Spider Man #400 cover

Storyline

The status quo of Peter Parker's life is shaken to the core in this Anniversary Special. Featuring a tale penned by Stan "The Man" Lee! Plus, the origin of Ben Reilly!

Amazing Spider-Man #400
Value & Price Guide by CGC Grade

Free • Takes 10 seconds • No credit card required
Grade Fair Value

Want to compare every CGC grade?

Create a free Underval account to compare grades, track value changes, and find comics listed below fair value.

Quick Insights on Amazing Spider-Man #400 in 2026

When was the last recorded sale for Amazing Spider-Man #400?

The last recorded sale was a CGC 9.8 for $70 on 08/17/2026 at eBay.

What was the highest sale recorded for Amazing Spider-Man #400?

The highest recorded sale was a CGC 9.8 for $350 on 05/20/2022 at eBay.

What was the lowest sale recorded for Amazing Spider-Man #400?

The lowest recorded sale was a CGC 8.5 for $12 on 09/14/2025 at eBay.

Which grade has the best annual growth for Amazing Spider-Man #400?

A CGC 9.2 shows the highest inflation-adjusted growth at 2.9% over 2015–2026 (11 years).

How often does Amazing Spider-Man #400 sell?

Average days to sell vary by grade (~every 60–828 days by grade), ranging from CGC 9.8 every 60 days to CGC 8.5 every 828 days.

Use Underval to Research Amazing Spider-Man #400

Search for Amazing Spider-Man #400 and other comics on Underval

1. Research Amazing Spider-Man #400

Search Amazing Spider-Man #400 and other comics to explore grade-level values, recent sales, and market activity.
Compare CGC grade metrics for Amazing Spider-Man #400

2. Compare CGC Grades

Compare fair value, recent sales, growth, liquidity, and long-term performance across the tracked grades for Amazing Spider-Man #400.
Find Amazing Spider-Man #400 listings below fair value

3. Find Buying Opportunities

Find listings for Amazing Spider-Man #400 and other comics, then quickly compare asking prices against Underval’s estimated fair values.
3 searches Last searched: 2026-06-28
Previous issue Amazing Spider-Man #399
Current Amazing Spider-Man #400
Next issue Amazing Spider-Man #401

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.