The growth of the internet has helped to spur the rapid development of the e-commerce space.

More and more people are relying on the Internet to make purchases from the convenience of their homes.

There is still significant room for further growth as internet penetration reaches far-flung countries and people modify their buying habits.

Hence, investors should look at investing in the e-commerce sector to grow their portfolios.

We serve up four interesting US e-commerce stocks that you can consider adding to your buy watchlist.

Coupang (NYSE: CPNG)

Coupang is an e-commerce and technology company that offers retail, restaurant delivery, video streaming, and fintech services to customers worldwide.

Its brands include Coupang, Coupang Eats, Coupang Play, and Farfetch.

For 2024, Coupang reported a 24.1% year-on-year jump in revenue to US$30.3 billion.

Operating profit, however, dipped by 7.8% year on year to US$436 million because of higher costs.

Net profit plunged 88.7% year on year to US$154 million but this was because of a tax credit recognised the year before.

In terms of profit before tax, the fall was gentler at 19% year on year to US$473 million.

The e-commerce player also generated a healthy positive free cash flow of US$1 billion for 2024.

The platform saw a 10% year-on-year increase in product commerce active customers to 22.8 million.

Coupang’s current product commerce-adjusted EBITDA (earnings before interest, taxes, depreciation, and amortisation) margin stood at 7.5% for 2024, and management has a long-term target of achieving a 10+% adjusted EBITDA margin.

To achieve this, the main drivers are efficiency and supply chain optimisation, operating leverage, and scaling its offerings.

Amazon (NASDAQ: AMZN)

Amazon is a trillion-dollar e-commerce behemoth that sells a wide range of products and also engages in cloud computing (Amazon Web Services or AWS), online advertising, and digital streaming (Amazon Prime).

For 2024, Amazon reported a sparkling set of earnings as revenue climbed 11% year on year to US$638 billion.

Operating profit surged 86.1% year on year to US$68.6 billion while net profit came in at US$59.2 billion, up 94.7% year on year.

Free cash flow for 2024 stood at US$32.9 billion, inching up 2.1% year on year.

In 2024, AWS announced a slew of new capabilities that allowed ultra-fast networking and tapped into artificial intelligence.

The company also launched Amazon Haul, a new shopping experience on its US shopping app and mobile site offering ultra-low prices.

For the first quarter of 2025 (1Q 2025), Amazon expects net sales to be between US$151 billion and US$155 billion, representing year-on-year growth of 5% to 9%.

eBay (NASDAQ: EBAY)

eBay is an e-commerce giant that operates a marketplace that connects buyers and sellers in more than 190 countries around the world.

2024 saw revenue creep up 1.7% year on year to US$10.3 billion.

Operating profit improved by 19.4% year on year to US$2.3 billion.

Net profit came in 28.6% lower than the prior year but was impacted by gains/losses on equity investments and warrants.

Excluding these, net profit would have more than doubled year on year to US$2.1 billion.

Free cash flow for 2024 remained stable at US$1.96 billion, dipping just slightly from US$1.97 billion in 2023.

The e-commerce player also declared a quarterly dividend of US$0.29 per share.

eBay saw its gross merchandise value rise 2% year on year to US$74.7 billion.

Last year, eBay made an investment in the UK market to improve the customer experience for consumer-to-consumer (C2C) sellers, including the introduction of a simplified listing flow on mobile.

The company also expanded its artificial intelligence-powered tools to enable sellers to create eye-catching listings in a faster and easier way.

Revenue for 1Q 2025 is projected at $2.52 billion to $2.56 billion, representing a 1% year-on-year decline to 1% year-on-year growth.

Gross merchandise value is expected to remain stable or grow by 1% year on year.

Chewy (NYSE: CHWY)

Chewy is an e-commerce site dedicated to pet owners where customers can shop from a wide selection of around 115,000 products and receive fast one to two-day shipping.

For the first nine months of fiscal 2025 (9M FY2025) ending 27 October 2024, Chewy reported net sales of US$8.6 billion, growing by 3.5% year on year.

Operating profit came in positive at US$122.3 billion, reversing the prior year’s operating loss of US$1.6 million.

Net profit stood at US$370 million, aided by a large tax credit, and was significantly higher than the previous year’s US$2.8 million.

Free cash flow for 9M FY2025 came in strong at US$295.9 million, up 7.3% year on year.

Although active customers fell from 20.3 million in the third quarter of fiscal 2024 (3Q FY2024) to 20.2 million in 3Q FY2025, the net sales per active customer grew by 4.2% year on year to US$567.

Chewy expects around a 6% year-on-year increase in sales for the full fiscal 2025 to around US$11.8 billion.

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Disclosure: Royston Yang does not own shares in any of the companies mentioned.