Power Keepers Booster Box
Total return since MSRP, alpha vs S&P 500 Total Return, and grading economics.
Current spot price
$13,526.00
Last refresh May 2026
Total return since MSRP
+18686.1%
SPXTR +641.6% · alpha +18044.5 pp
Annualized CAGR
31.26%
SPXTR 10.97%
19.3-year horizon
Weekly volume
—
Volume signal activates with TCGplayer/eBay integration
Power Keepers Booster Box vs S&P 500 (TR)
Both series indexed to 100 at the anchor date.- Booster box
- S&P 500 Total Return
$1,000 invested at MSRP
If you'd bought boxes at MSRP and held to today.Booster box
13.9 boxes
$187,861
+18686.1% · CAGR 31.26%
S&P 500 (TR)
10.00 units indexed
$7,416
+641.6% · CAGR 10.97%
Alpha: + $180,445 (+18044.5 pp)
Box → Singles
Grading economics — coming soon.Activates with the optimizer + pop data integration.
The Box → Singles panel ties this product back to the per-card grading optimizer: expected pull rates × probability of each grade × current PSA / CGC / BGS / SGC / TAG comps, netted against fees and shipping. The output is a verdict ("SEALED IS UNDERVALUED", "FAIR", "OVERVALUED") so a serious investor can compare a sealed box's spot price against its expected singles EV.
Activates the moment pop_reports rows land for the cards in this set.
Disclosures
- Returns shown ignore storage / insurance / liquidity friction (~1-2% per year).
- Spot prices come from PriceCharting median sold comps (booster box) and TCGplayer (some products); see methodology.
- The S&P 500 Total Return series (
^SP500TR) is provided monthly via Yahoo Finance, with FRED's daily price-only series used elsewhere on the site. - Past performance is not indicative of future results.