Wildcard → Lag Board → Bobby Orr
Bobby Orr vs Wayne Gretzky
1966-67 Topps #35 (ungraded) against 1979-80 O-Pee-Chee #18 (ungraded) — measured, not predicted.
Not currently priced Same era Hockey
- Ratio now
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- Baseline
- not established yet
- Vs baseline
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- Observations
- 0
- Wayne Gretzky, 30d
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- Bobby Orr, 30d
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Not enough observations to draw a history yet. The index records one ratio per pairing per scan; this chart appears once there are at least two.
Every recorded observation
Why these two
The sport's other franchise rookie card, and the one with genuinely vintage scarcity behind it — Orr's 1966-67 Topps #35 predates the anchor by thirteen years.
What would make this wrong
Different decades, different manufacturers and different grade bands. This pairing has the most structural drift of anything in this file and should be read as context, never as a signal on its own. Measured ungraded on both legs, because a stated grade the guide cannot resolve falls back to the raw price on one side only, which would compare a raw Orr against a graded Gretzky.
How this is measured
Each scan records one number: the fair value of Bobby Orr's 1966-67 Topps #35 (ungraded) divided by the fair value of Wayne Gretzky's 1979-80 O-Pee-Chee #18 (ungraded), both from comparable sales. The baseline is the median of those observations over 90 days — excluding the most recent 21, so a fresh move cannot drag down the very number it is being measured against. Below 8 observations there is no baseline and this page says so instead of showing one.
The baseline is never authored. It is the median of what was recorded, or it does not exist. Nobody types a target ratio into this system.
This is an observation about a historical relationship, not a forecast. A gap that never closes means the market permanently re-rated Bobby Orr rather than temporarily forgot him — that is the risk in every pairing here, and it does not mean-revert on a schedule.