This week’s biggest moves came from older, low-supply sets rather than recent retirements. The strongest gainers were mostly niche themes and small-format releases, while the sharpest declines look more like thin-market volatility than a broad change in demand.
Top gainers
Santis led the week with a 20.0% move to $31.40. This looks like a classic older-small-set jump: low entry price, older Castle branding, and a market where a few transactions can move the estimate quickly. The yearly change is only 6.4%, which suggests this was a short-term repricing rather than a long steady climb.
Dragon Fight rose 19.7% to $20.97. Polybags and small promo-style Ninjago items often trade in bursts, and Ninjago has one of the deepest collector bases outside Star Wars. That combination tends to produce sharp weekly moves when supply dries up.
The most interesting number on the list may be City Police Super Pack 5 in 1, up 19.1% to $292.04. Unlike the micro-priced gainers, this is a larger dollar move in an evergreen theme. Multi-pack exclusives can be hard to price cleanly because they appear less often, and that usually creates bigger swings when one or two higher sales reset the market.
Top decliners
Mega Muscle Car fell 20.0% to $7.43, but the broader context matters. It is still up 3.6% on the year, and recent polybag pricing can be noisy because supply is uneven and the absolute dollar value is small. A drop like this often says more about short-term availability than weakening collector interest.
Barnacle Bay Value Pack dropped 19.6% to $349.00, which is a meaningful move in dollar terms. Older Pirates bundles and value packs are notoriously thin markets. When there are very few comparable sales, one lower transaction can pull the estimate down fast even if long-term demand remains intact. The set is still up 8.3% year over year, which supports that view.
This week’s list points to a market still driven by scarcity, especially in older side themes, polybags, and unusual bundles. The common thread is not broad weakness or strength by theme, but price sensitivity in categories where a handful of sales can reset the market very quickly.
Data as of October 1, 2026.
Based on historical market data from BrickEconomy's pricing models. Past performance does not guarantee future appreciation. Prices reflect estimated secondary market values and may vary by condition and seller.
This article was generated by BrickEconomy's market analysis system. All prices sourced from our
data methodology. Data as of October 1, 2026.