The Promo Bulbasaur #37 is valued at $20.98 raw, $23.61 in PSA 9, $75.81 in PSA 10 as of November 3, 2026. Its market value is down 8.8% over the last 30 days, from $23.00 to $20.98. Across the 89 days we have tracked it, it has ranged from $19.82 to $31.67, and it currently sits 34% below that high. With 2,992 recorded sales, it ranks in the top 10% of Pokémon cards we track by trading volume.
On current values, a PSA 9 ($23.61) is worth $22.37 less than a raw copy plus a $25.00 grading fee, while a PSA 10 ($75.81, 3.6× raw) is worth $29.83 more, so the difference comes down to the grade. The cheapest PSA 10 copy we matched on eBay when we last checked on November 3, 2026 was $69.00, close to our PSA 10 market value of $75.81.
About $20.98 raw, $23.61 in PSA 9, $75.81 in PSA 10, based on our market values as of November 3, 2026. Its market value is down 8.8% over the last 30 days, from $23.00 to $20.98.
On current values, a PSA 9 ($23.61) is worth $22.37 less than a raw copy plus a $25.00 grading fee, while a PSA 10 ($75.81, 3.6× raw) is worth $29.83 more, so the difference comes down to the grade. This ignores gem rate and selling fees, so treat it as a best case.
The cheapest PSA 10 copy we matched on eBay when we last checked on November 3, 2026 was $69.00, close to our PSA 10 market value of $75.81.