How can I compare other PSA grades?

Create a free Underval account to compare every tracked PSA grade, including fair value, historical growth, liquidity, confidence, recent sales, and active listings.

Best PSA Grade for Grass Energy #99

Underval analyzed every tracked PSA grade for Grass Energy #99 from Base Set 1st Edition using historical sales data to identify the current top-ranked grade based on historical market characteristics. Scroll down to see which grade ranks the best.

Current Top-Ranked Grade

Based on Underval’s grade comparison model for Grass Energy #99.

Top-Ranked PSA Grade

PSA 10.0

Overall data score: 65/100

Fair Value

$270

Annual Growth

11.1%

Avg Days to Sale

Years Tracked

Sales Tracked

Why PSA 10.0 ranks highest

Based on Underval's historical market data, PSA 10.0 currently ranks highest based on its overall balance of long-term performance and market activity for Grass Energy #99 from Base Set 1st Edition. With an estimated fair value of $270, annual growth of 11.1% (inflation adjusted), approximately 44 days between sales , over 3 years of historical data, and 24 tracked sales, this grade currently ranks highest across Underval's historical grading model. This ranking is intended for research and educational purposes only and should not be interpreted as financial or investment advice.

See How Every Grade Compares

You've seen the top-ranked grade based on historical market data. Create a free account to compare every tracked PSA grade for Grass Energy #99, including fair value, annual growth, liquidity, sales history, and market trends.

Free • Takes 10 seconds • No credit card required

Best Grade Analysis for Grass Energy #99

What is the top-ranked PSA grade for Grass Energy #99?

Based on Underval’s historical sales model, PSA 10.0 currently ranks highest within Underval's historical grading model for Grass Energy #99 from Base Set 1st Edition. The ranking considers growth, liquidity, years tracked, confidence, correlation, and recent sales activity.

Is this a recommendation to buy PSA 10.0?

No. This page is informational only. Underval does not provide financial advice or personalized buying recommendations. The grade shown is a data-based ranking from historical sales activity.

What is the estimated fair value for Grass Energy #99 PSA 10.0?

The current estimated fair value is $270. Fair value is an informational estimate based on sales data, not an offer.

How liquid is Grass Energy #99 PSA 10.0?

Sales data shows this grade has historically sold about every 44 days on average.

How can I compare the other PSA grades?

Create a free Underval account to compare every tracked PSA grade for Grass Energy #99, including fair value, growth, liquidity, confidence, recent sales, and active listings.

Compare Pokémon cards with better market context

1. Research Pokémon Cards

Search Pokémon cards to explore grade-level values, recent sales, and market activity.

2. Compare PSA Grades

Compare fair value, recent sales, growth, liquidity, and long-term performance across tracked PSA grades.

3. Find Buying Opportunities

Find Pokémon card listings and quickly compare asking prices against Underval's estimated fair values.

Legal Disclaimer
Underval is a platform designed to provide information about the potential value of collectibles 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 collectible 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.