E-Commerce: Amazon, MercadoLibre, Shopify, and the Battle for Margin in a Saturated Market

Last year Amazon admitted for the first time how much it earns from advertising: over $47 billion. More than Twitter and Snap combined. More than a whole range of media giants. And yet Amazon still presents itself as an "e-commerce company." If you invest in Amazon as an online retailer, you're investing in the wrong company — the right frame is to invest in an advertising and cloud platform that runs e-commerce as customer acquisition.

Amazon: E-Commerce as a Funnel, Not a Business

Amazon (AMZN) has three key value engines. AWS (Amazon Web Services) is the cloud division with operating margins above 30% and drives the overwhelming majority of operating profit. Advertising is the fastest-growing segment — sellers and brands pay for visibility on Amazon, and margins are excellent. Prime subscriptions generate stable recurring revenue and create loyalty.

The online retail operation in the US itself runs at near-zero margin — Amazon uses e-commerce as customer and data acquisition for higher-margin AWS and advertising. Those who understand this model grasp why Amazon is not comparable to Walmart or Tesco.

MercadoLibre: A Latin American Bet on Digitalization

MercadoLibre (MELI) is the most valuable technology company in Latin America. It operates in over 18 countries and combines a marketplace (goods sales), logistics (Mercado Envios), fintech (Mercado Pago, digital wallet, loans), and advertising.

The thesis for MELI is demographic: Latin America has 650 million inhabitants, a large proportion of whom remain underbanked and where e-commerce penetration is significantly lower than in the US. MercadoLibre is the digital infrastructure of an emerging market.

Risks are proportional: the Argentine peso and Brazilian real are volatile currencies, the political environment in the region is unstable, and fintech regulation is still taking shape. MELI trades at high valuations reflecting the growth thesis — if that growth doesn't materialize, those who paid a high P/E will pay for the disappointment too.

Shopify: Infrastructure for Independent Merchants

Shopify (SHOP) is not a retailer or a marketplace. It is a platform — SaaS for merchants who want to sell online. It provides payment systems, order management, logistics, analytics, and marketing. It earns on subscriptions and a percentage of transactions.

Shopify is the only major e-commerce company that does not directly compete with its own customers — unlike Amazon, which copies successful third-party products. This gives Shopify a different position in its relationship with customers.

E-Commerce in Emerging Markets: Coupang, Sea Limited

Beyond Latin America, there are interesting regional players. Coupang (CPNG) is a South Korean e-commerce platform with premium logistics (delivery within 24 hours from its own warehouses). Sea Limited (SE) combines e-commerce (Shopee), gaming (Garena), and fintech in Southeast Asia.

These companies are high-risk — combining developed-market exposure with regulatory uncertainty, currency risk, and intense competition from Alibaba or Tokopedia. But the region's growth potential is real.

ONLN and EBIZ ETFs: How to Capture the Sector

The ProShares Online Retail ETF (ONLN) and the Emles Online Retail ETF (EBIZ) are two ETFs focused on online retail. ONLN includes Amazon, Shopify, MercadoLibre, eBay, and other online retailers and marketplaces. EBIZ adds payment companies.

Neither ONLN nor EBIZ is UCITS — for investors in the EU, alternatives with European regulation or direct individual stock positions are preferable. E-commerce company valuations are historically sensitive to interest rate moves — at higher rates, growth companies suffer more.

• Amazon: cloud + advertising + retail, global, liquid, more expensive
• MercadoLibre: emerging markets, higher growth, higher risk
• Shopify: infrastructure thesis, independent merchants, SaaS model
• ETFs: thematic exposure, but pure e-commerce is hard to isolate

E-commerce as a theme is attractive, but saturation in developed markets shifts growth to higher-risk regions. A core portfolio remains a diversified global index — see all-world vs. S&P 500. Add sector positions thoughtfully. This is not investment advice; an index is the starting point.

Logistics and Fulfillment: Who Actually Earns from E-Commerce?

Every e-commerce order needs a warehouse, a picker, a courier, and last-mile delivery. This logistics layer is less glamorous than the marketplace platform, but it is indispensable — and in many respects more profitable. Companies like FedEx, UPS, or the European parcel market (DHL, GLS, and regional carriers) earn on every package regardless of who wins the e-commerce platform war.

Investing in logistics is a way to plug into the e-commerce thesis without betting on specific retail battle winners. It is similar logic to investing in pickaxe and shovel manufacturers during the gold rush — who is digging doesn't matter; everyone needs the tools.

E-Commerce Valuations and Interest Rates

E-commerce growth companies (Shopify, MercadoLibre, Sea Limited) are more sensitive to interest rate movements than traditional value stocks. Why? Because their value depends on cash flows far into the future — and a higher discount rate "shrinks" those distant cash flows in today's terms.

The practical consequence: in 2022, when central banks raised rates aggressively, Shopify lost over 75% of its value. The underlying business didn't change much — what changed was the discount rate applied to future profits. An investor in growth e-commerce must be prepared for this sensitivity and have a sufficiently long time horizon. DCA into the growth segment reduces the impact of entry timing — more in cost averaging.

B2B E-Commerce: Less Followed, But a Larger Market

Public discussion of e-commerce focuses on B2C — Amazon, Zalando, and direct-to-consumer stores. But B2B e-commerce (business-to-business sales) is larger by volume and less cyclical. Companies like Shopify are expanding into the B2B segment, Alibaba dominates global B2B trade through Alibaba.com, and many industrial distributors are moving orders online.

For an investor, B2B e-commerce is less accessible through a pure "e-commerce" ETF — companies operating in this segment are often part of industrial or technology indexes. But it is a segment with higher margins and stickier customers than B2C, because switching suppliers costs companies time and money. If you're looking for e-commerce exposure with a more defensive character, the B2B component is an underappreciated part of the story. Generally: the more you think of e-commerce as a specific theme and less as a selection of individual companies, the more likely you are to arrive at a diversified index approach — and that is usually the right conclusion.