Insulated stainless steel water bottle, 450 ml
$27.99
Arrives day 6 to 14
14,000 sold$27.75 median Clears both bars
Change log · computed 2026-11-07
What changed: price moves between our reads
Every entry is a real difference between two dated reads of the same product type. Nothing is added by hand.
17 product-type price moves of 10% or more so far. Smaller differences are treated as noise.
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Moves of 10% or more between our reads
17 moves across 16 product types: 10 up, 7 down. Newest first, shown up to 60. Green bars right are rises, brick bars left are falls.
17Moves of 10% or moreacross 16 product types
10Prices rosebetween two reads
7Prices fellbetween two reads
+60%Biggest moveRechargeable headlamp
Median of the first page of eBay sold-and-completed results, about 60 listings, new and used mixed. How we read prices. Data: open dataset, CC BY 4.0, and the JSON feed.
Questions
What counts as a change here?
A product type appears only when two dated reads of its eBay sold-price median differ by 10% or more. The median comes from the first page of about 60 sold listings, so smaller moves are indistinguishable from noise.
Does a price move mean the product got better or worse?
No. It means buyers paid a different median in the later read. The sample, the mix of new and used, and what was listed that week all move it.
Can I download this?
Yes. The same entries are in a JSON feed at /changes/feed.json, free to reuse under CC BY 4.0 with attribution.
