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  3. /Tracking product launches and newness
Use case

How can you measure how successful a brand's new product launches are?

Launch performance can be read from the shelf: how widely a new product is distributed across retailers, how quickly sizes or variants sell out at full price, and how soon it is discounted. Weekly first-seen dates, availability and price history per product make those patterns comparable across launches and brands.

For:Public market investorsPrivate equityVenture capitalConsultants

Last reviewed 24 September 2026

Signals of a strong launch

  • Broad distribution: the product appears at many retailers soon after launch.
  • Full-price sell-out: sizes or variants go out of stock without discounting.
  • Late or no markdown: the product holds full price for longer than comparable launches.

Signals of a weak launch

  • Narrow distribution that does not widen.
  • Early discounting, especially at wholesale partners.
  • Quick appearance at off-price retailers.

Metrics used

  • New-product share: The percentage of a brand's live assortment that was first seen within a recent window, such as the last 13 weeks.
  • Full-price availability: The share of a brand's products that are both in stock and selling at full price, a proxy for clean, healthy demand.
  • Channel leakage: Products moving from premium retailers to off-price retailers, a signal of excess inventory and brand-positioning risk.
  • Markdown breadth: The share of a brand's or retailer's live products that are selling below their full price at a point in time.

How each measure is built: methodology.

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Data Purl turns public retailer websites into investment-grade data: SKU-level price, discount, availability and assortment history across 400+ retailers back to 2013, with brands resolved to their owners, public or private, and listed owners mapped to tickers.

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