The 1978 Topps Mike Bossy #115 is valued at $21.12 raw, $454 in PSA 9, $10,000 in PSA 10 as of November 4, 2026. Its market value is up 11.5% over the last 30 days, from $18.95 to $21.12. Across the 89 days we have tracked it, it has ranged from $18.19 to $23.45, and it currently sits 10% below that high. With 246 recorded sales, it ranks #113 of 500 hockey cards we track by trading volume.
On current values, a PSA 9 ($454) is worth $408 more than a raw copy plus a $25.00 grading fee, and a PSA 10 ($10,000, 473.5× raw) is worth $9,954 more. The cheapest Raw copy we matched on eBay when we last checked on November 4, 2026 was $19.99, close to our Raw market value of $21.12.
About $21.12 raw, $454 in PSA 9, $10,000 in PSA 10, based on our market values as of November 4, 2026. Its market value is up 11.5% over the last 30 days, from $18.95 to $21.12.
On current values, a PSA 9 ($454) is worth $408 more than a raw copy plus a $25.00 grading fee, and a PSA 10 ($10,000, 473.5× raw) is worth $9,954 more. This ignores gem rate and selling fees, so treat it as a best case.
The cheapest Raw copy we matched on eBay when we last checked on November 4, 2026 was $19.99, close to our Raw market value of $21.12.