Resale price sites usually give you one number with no source, no date and no sample size. I wanted the opposite, so I built SoldSignal : a free weekly resale price index where every price says what it is (SOLD = finished sales, ASK = current listings), how many data points sit behind it, and what a seller actually keeps after fees on each platform.

It covers 29 items this week: sneakers, gaming hardware, Pokémon/Labubu/Stanley, and Rolex/Omega/Tudor/Cartier/Seiko watches.

What the data says (week 2026-W44, collected Oct 29, 2026)

Sneakers (GOAT, median of the last recorded sale per size, men's 7–13, new in box)

Shoe Median last sale Retail vs retail

Travis Scott x Jordan 1 Low 'Mocha' $2,109 $130 +1,522%

Travis Scott x Air Force 1 'Ice Blue' $554 $120 +362%

Air Jordan 1 High 'Chicago Lost & Found' $293 $180 +63%

Air Jordan 11 'Gamma Blue' (2025) $342 $230 +49%

Air Jordan 4 'Bred Reimagined' $248 $215 +15%

Yeezy 350 V2 'Bone' $245 $220 +11%

Gaming (Mercari US sold listings) : Nintendo Switch OLED…