For ETF investors, the key question is not whether resale is โgood,โ but how investable the underlying mechanism really is. Circular models can improve customer retention, data collection and pricing power, yet those advantages are unevenly distributed across brands. A thematic ETF that leans into this trend may still be carrying classic equity risks: execution quality, competitive pressure, and dependence on consumer demand. In other words, the sustainability story does not remove the need to examine business resilience.
Methodology matters more than the label. A fund marketed around circular economy or ESG innovation may include very different exposures depending on how it defines the theme. Some portfolios may load up on luxury, retail platforms, logistics, software or payments infrastructure rather than pure resale operators. That means investors should look beyond the theme name and ask how concentrated the basket is, which industries dominate, and whether the index is selecting enablers, adopters or direct beneficiaries of the model.
There is also a valuation and portfolio-construction angle. Brands adopting resale can strengthen margins or reduce acquisition costs, but those benefits may already be partly reflected in share prices if the market is extrapolating future operating improvements. For long-term ETF holders, the practical issue is whether the theme adds genuine diversification or simply repackages consumer and sustainability exposure into a more compelling narrative. If the case is built on long-duration change, discipline on rebalancing and position sizing becomes essential.
Exhaustion of digital levers
โToday, traditional levers on social media are structurally less profitable,โ notes Aymeric Dรฉchin, co-founder of Faume, the French platform that helps luxury and premium brands launch their own resale service. โA brand can spend from 40 to over 60 euros to generate an order, while the net margin on an item is often lower.โ This imbalance weakens an entire model, one of acquisition dependent on paid media and algorithms. Brands, exhausted by this race for visibility, are now seeking a more sustainable growth leverโboth economically and ecologically.Resale, a new organic acquisition channel
With traditional digital channels losing steam, is resale establishing itself as a fully-fledged acquisition tool? Long perceived as a parallel market, it is now becoming a proprietary channel for brands wanting to regain control over their pre-loved products and customer relationships. โWe observe that, on average, 70 percent of second-hand buyers are new customers for the brand,โ explains Dรฉchin. These first-time buyers, often under 35 years old, discover the brand through a reconditioned product and access its world at a more affordable price. Entry into the ecosystem occurs without advertising, via email, a newsletter, or a voucherโCRM channels with marginal costs. This mechanism creates a virtuous acquisition loop: a customer resells an item; receives a gift card to spend on new or second-hand products; and a new buyer discovers the brand through this recirculated piece. Each step feeds the next, generating a cycle of loyalty and attraction at a controlled cost. By facilitating circular use, brands are seeing a significant increase in customer re-engagement without additional marketing investment. According to Faume’s internal data, the acquisition cost via resale is up to 60 percent lower than that of classic digital campaigns. Unlike advertising budgets, these investments generate sustainable assets: an enriched CRM database, an enhanced brand image, and a reduced environmental footprint.Dynamic pricing, the modelโs backbone
The mechanism works because it is based on a โscience of pricingโ. Using dynamic pricing technology developed in 2025, Faume helps brands adjust the buy-back and resale price based on the product’s desirability, rarity and stock turnover. This approach, once reserved for new retail, is becoming an essential management tool for the second-hand market. It helps to avoid market saturation with low-value items, while maximising the profitability of iconic pieces. According to Dรฉchin, โprice control is a key performance factor. It allows the brand to direct its offering, better manage its flows and preserve the perceived value of its productsโ. By combining this pricing strategy with a premium reconditioning processโauthentication, cleaning, delivery in official packagingโFaume aligns the second-hand experience with that of new products, guaranteeing trust and desirability.Model at the crossroads of business and impact
Beyond economic performance, resale addresses a sustainability issue that brands can no longer ignore. Each garment returned to the market helps avoid between 15 and 25 kilograms of COโ, according to the Quantis Textiles 2024 study. In 2024, Faume helped reduce over 4,200 tonnes of COโ emissions through reconditioning. In a market where Exchange-Traded Funds (ETFs) indexed on carbon allowances are emerging, investors are seeking to quantify the climate impact of each activity. Having a model that can prove its effective decarbonisation is therefore a competitive asset. For Faume and its partners, โavoided carbonโ is becoming a tangible competitive advantage. This is an indicator that brands will be able to leverage with markets and consumers in the future.Towards a new circular economy of capital
What is now at stake goes beyond a simple transformation of the consumption model. By integrating resale into their value chain, brands are redefining the very notion of growth. This is a growth that combines economic performance, cost control and impact reduction. In a context where pressure on margins is increasing and Environmental, Social and Governance (ESG) criteria are becoming essential for investors, the circular model is becoming a financial lever in its own right. It not only extends a product’s commercial life but also captures new customer data and strengthens brand valuation. In other words, resale is no longer a โvirtuous side projectโ but a genuine asset capable of influencing balance sheets as much as brand narratives in the future.Enjoyed this article? Sign up for our newsletter to receive regular insights and stay connected.

