Inventory Spike Alerts — New Sports Card Listings Rising — March 16, 2026
Fresh inventory is flooding vintage markets today, with Jalen Hurts leading at +61.8% new supply alongside Babe Ruth (+52.8%) and Wilt Chamberlain (+47.4%). This wave of seller activity coincides with strong price momentum in modern stars like Jefferson and Clark, suggesting collectors are rotating out of established positions to chase current heat. The data indicates buying opportunities may be emerging in the vintage names where new supply is outpacing immediate absorption.
The inventory spike alerts reveal a bifurcated market where vintage legends like Babe Ruth, Wilt Chamberlain, and Sandy Koufax are seeing massive new supply influxes (+47-53%) despite modest price gains, suggesting collectors may be taking profits or testing demand at current levels. This flood of new inventory alongside relatively contained price movement historically signals potential absorption pressure that could limit near-term upside for these Hall of Fame cards. Meanwhile, modern stars like Justin Jefferson and Paul Skenes are showing the opposite pattern — Jefferson’s 60% price surge paired with declining new inventory indicates genuine scarcity-driven momentum, while collectors monitoring the vintage legends may want to watch whether this new supply gets absorbed or creates downward pressure.
| Player | New Inventory | Price Change | Heat Score |
|---|---|---|---|
| Jalen Hurts | +61.8% | +0.0% | 63 |
| Babe Ruth | +52.8% | +3.1% | 57 |
| Wilt Chamberlain | +47.4% | +17.1% | 70 |
| Sandy Koufax | +46.8% | +4.5% | 58 |
| Jackie Robinson | +46.4% | +15.6% | 54 |
| Luka Dončić | +33.6% | -26.0% | 47 |
| Walter Payton | +28.1% | -1.1% | 44 |
| Shai Gilgeous-Alexander | +28.0% | -10.0% | 47 |
| Jordan Love | +24.3% | +6.0% | 49 |
| Chet Holmgren | +22.4% | +6.0% | 54 |
| Roman Anthony | +18.8% | +6.8% | 59 |
| Patrick Mahomes II | +18.4% | +20.0% | 61 |
| Paul Skenes | +11.8% | +27.0% | 75 |
| Aaron Judge | +11.7% | -28.6% | 28 |
Featured players: Justin Jefferson, Paul Skenes, Caitlin Clark