The LEGO Market, Reduced to an Index

Field notes

CBX builds market baskets from retired LEGO sets and minifigures, then reports price-weighted index levels, constituent performance, and theme comparisons. Each series starts at 1,000 and is rebalanced monthly; returns are shown both nominally and after BLS CPI-U adjustment. Holdings expose fields such as year, piece count, MSRP, weight, and price versus MSRP, while the research area includes BrickLink sold-transaction sample counts.