Singapore’s internet services group Sea, Chinese electric vehicle maker BYD and ecommerce platform Pinduoduo were Asia’s top three gainers in the stock market last year as investors flocked to companies that continued to grow throughout the Covid-19 pandemic.

Thanks to worldwide monetary easing and fiscal stimuli that generated money for investment, global stock markets have recovered faster than real economies. This boosted some high-flying Asian companies that investors hoped would become the next Tencent Holdings or Alibaba Group Holding — Asia’s two most valuable companies, each now worth about $700bn.

The best example was Sea, known for its Shopee ecommerce platform in south-east Asia. Its market capitalisation grew more than fivefold last year to $102bn, making it the region’s most valuable listed company. That growth rate is the fastest among about 500 major Asian companies that had a market cap of more than $10bn at the end of 2019, according to QUICK-FactSet data as of December 22.

Sea’s three pillars — ecommerce, online gaming and epayment — all benefited from the pandemic, and it continued aggressive marketing to capture market share. Being a rare south-east Asian tech start-up listed on the New York Stock Exchange, it attracted US investors who see high growth potential in the region.

Moreover, Sea won a digital bank licence in Singapore last month, which would unlock more fintech opportunities for the company, further boosting its shares.

Similarly, Nasdaq-listed Pinduoduo, known for its generous group-buying discounts, is among a handful of Chinese ecommerce companies that benefited from surging demand during the pandemic, with its market cap nearly quadrupling to $170bn.

Online sales for the company remained strong even after the pandemic was largely contained in China. During the July-September quarter, Pinduoduo’s revenue climbed 89 per cent to Rmb14.2bn ($2.1bn) from a year earlier, and its net loss narrowed to Rmb784.7m from Rmb2.34bn in the same quarter of 2019.

“Information technology was no doubt the best-performing sector in 2020, and this trend could carry into [2021] because consumer behaviour has been reshaped by Covid-related travel bans and lockdown measures,” said Margaret Yang, a strategist with DailyFX in Singapore. “This could have a long-lasting impact on consumer behaviours and preferences.”

Asia’s second-biggest gainer, BYD, increased its market capitalisation by 333 per cent. The Shenzhen-based automaker, which has had Warren Buffett’s backing since 2008, has significantly improved its deliveries as China recovers strongly from the pandemic. In November, it more than doubled its sales of electric vehicles from a year earlier, and now has the largest share in China’s EV market.

Investor confidence has also been boosted by a breakthrough in BYD’s battery business. The Blade Battery it had been developing for years was launched in 2020. It can increase energy density by at least 30 per cent and reduce costs of raw materials by 30 per cent, according to the company.

Other automobile battery makers also made the list of top winners. China’s Contemporary Amperex Technology had its market cap more than triple to $111bn, while South Korea’s LG Chem saw its value soar 2.5 times. LG Chem’s market share in EV batteries jumped to 25 per cent in 2020, from 12 per cent a year earlier, as it targeted Europe.

Prospects are bright this year for LG Chem because the incoming administration of Joe Biden is expected to focus on the environment, which should raise demand for electric cars in the US.

Globally, the stock performance of Tesla showed investors’ high expectations of EVs, with its market value rising eightfold to more than $600bn, far exceeding that of Toyota Motor, Japan’s most valuable company.

The industry-wide rally has also given rise to EV newcomers. The market cap of the Chinese EV start-up Nio, which is not among the 500 major Asian companies because its market value was below $10bn at the end of 2019, increased by 17 times to $74bn — more than that of General Motors — as its improved sales and delivery figures helped investor confidence.

A few health care-related IT companies also gained significantly last year, with the shares of Hong Kong-listed Alibaba Health Information Technology rising 219 per cent and Japan’s medical information platform M3 soaring 179 per cent.

After a plunge in March as the pandemic spread across the world and governments halted economic activities, stock prices have been on an upward trajectory since April after infections peaked in many countries.

The Nasdaq Composite index climbed 43 per cent last year, while South Korea’s Kospi and Japan’s Nikkei Stock Average rose 24 per cent and 12 per cent. The Shanghai Composite Index also rose, by 10 per cent. The Nikkei Asia300 index, which covers major stocks in Asia outside Japan, gained 17 per cent.

However, south-east Asian markets, which do not hold many high-flying tech listings, generally underperformed, with Thailand’s SET down 10 per cent.

Five Asian companies made the list of the world’s 20 most valuable companies: Tencent (ranked at number 7), Alibaba (8), Taiwan Semiconductor Manufacturing Co (12), Samsung Electronics (13) and Chinese liquor maker Kweichow Moutai (17). There were only four Asian companies in the top 20 at the end of 2019. TSMC and Kweichow Moutai are new entrants; Industrial and Commercial Bank of China fell off the list.

Some Asian companies rode on the stock market boom to go public last year, making blockbuster initial public offerings. China’s KE Holdings, which listed on the NYSE in August — the biggest IPO by a Chinese company in the US in 2020 — is now valued at nearly $80bn, almost eight times its value when Tencent and SoftBank Group invested in the company in 2019.

The company, also known as Beike Zhaofang, is the mainland’s biggest online real estate transaction platform, earning revenues primarily from commission fees. Investors have been attracted to the company’s business model, as it charges as much as a 3 per cent commission on home sales while keeping overhead costs lower than those of traditional property agencies. The company’s adjusted net profit more than tripled to Rmb1.86bn in the quarter ended September.

Meanwhile, Asian companies in traditional sectors such as energy and transportation lost significant market value as their core businesses were hit hard by travel curbs and other pandemic restrictions. The market value of Japanese oil company INPEX and Chinese state oil major Cnooc fell by 52 per cent and 44 per cent respectively, while that of West Japan Railway declined 47 per cent.

Some analysts believe the bull run is not over. “The upward trajectory remains intact for the global stock market, albeit some technical pullbacks are possible into the first quarter of 2021,” Ms Yang said.

She pointed out that stock market valuations appear to be “overstretched” but the accommodative monetary environment and hopes about vaccines may continue to support a bull market in the medium term.

She said US president-elect Joe Biden could bring major changes to America’s foreign policy alongside tax reforms. “Aside from that, the lingering impact of the Covid-19 pandemic, an uneven rollout of Covid vaccines around the globe and the ongoing US-China spat are among the key event risks.”

Additional reporting by Nikki Sun and Narayanan Somasundaram in Hong Kong and Kim Jaewon in Seoul.

A version of this article was first published by Nikkei Asia on December 28, 2020. ©2020 Nikkei Inc. All rights reserved.