Asian stock markets rose Monday on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high.

Market benchmarks in Shanghai, Hong Kong, Seoul and Sydney advanced. Tokyo declined.

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In this photo released by JPX, Japan Exchange Group CEO Akira Kiyota, center, delivers a speech during a ceremony marking the start of this year's trading in Tokyo Monday, Jan. 4, 2021. The Nikkei 225 in Tokyo was off 0.4% at 27,344.87 after Prime Minister Yoshihide Suga announced the government is considering declaring a state of emergency for Tokyo and three surrounding prefectures due to surging virus caseloads. (JPX via AP)

Asian stock markets rose Monday on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high.

In this photo released by JPX, Japan's Finance Minister Taro Aso tolls a bell during a ceremony marking the start of this year's trading in Tokyo Monday, Jan. 4, 2021. The Nikkei 225 in Tokyo was off 0.4% at 27,344.87 after Prime Minister Yoshihide Suga announced the government is considering declaring a state of emergency for Tokyo and three surrounding prefectures due to surging virus caseloads. (JPX via AP)

Traders are “perhaps a bit over-eager” but believe vaccines will “provide the ultimate economic kick-start, offering a massive booster shot to corporate profits,” said Innes.

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high.(AP PhotoVincent Yu)

The Kospi in Seoul rose 2% to 2,930.38 and Sydney’s S&P-ASX 200 added 0.2% to 6,661.10. Singapore and Jakarta also advanced.

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoVincent Yu)

Vaccine development by U.S., European and Chinese producers has helped investor optimism that a return to normal might be closer after the global economy’s worst decline since the 1930s.

South Korean financial officers wearing face masks celebrate the opening for the Year 2021 trading outside of the Korea Exchange in Seoul, South Korea, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoLee Jin-man)

“Investors should look through the bumpier start to the new economic cycle and focus on the improved earnings outlook,” Craig said.

People walk by an electronic stock board of a securities firm in Tokyo, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. Market benchmarks in Shanghai, Hong Kong, Seoul and Sydney advanced. Tokyo declined.((AP PhotoKoji Sasahara)

People walk by an electronic stock board of a securities firm in Tokyo, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. Market benchmarks in Shanghai, Hong Kong, Seoul and Sydney advanced. Tokyo declined.((AP PhotoKoji Sasahara)

People walk by an electronic stock board of a securities firm in Tokyo, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. Market benchmarks in Shanghai, Hong Kong, Seoul and Sydney advanced. Tokyo declined.(AP PhotoKoji Sasahara)

People walk by an electronic stock board of a securities firm in Tokyo, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. Market benchmarks in Shanghai, Hong Kong, Seoul and Sydney advanced. Tokyo declined.(AP PhotoKoji Sasahara)

A huge screen shows the Korea Composite Stock Price Index (KOSPI) as workers clear the floor after the opening ceremony of the 2021 trading year at the Korea Exchange in Seoul, South Korea, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoLee Jin-man)

A huge screen shows the Korea Composite Stock Price Index (KOSPI) as workers clear the floor after the opening ceremony of the 2021 trading year at the Korea Exchange in Seoul, South Korea, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoLee Jin-man)

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoVincent Yu)

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoVincent Yu)

Optimism about vaccines has countered concern about rising infection numbers in the United States and some other countries and conflict over economic aid in Washington, said Stephen Innes of Axi in a report.

In this photo released by JPX, Japan Exchange Group CEO Akira Kiyota, center, delivers a speech during a ceremony marking the start of this year's trading in Tokyo Monday, Jan. 4, 2021. The Nikkei 225 in Tokyo was off 0.4% at 27,344.87 after Prime Minister Yoshihide Suga announced the government is considering declaring a state of emergency for Tokyo and three surrounding prefectures due to surging virus caseloads. (JPX via AP)

In this photo released by JPX, Japan Exchange Group CEO Akira Kiyota, center, delivers a speech during a ceremony marking the start of this year's trading in Tokyo Monday, Jan. 4, 2021. The Nikkei 225 in Tokyo was off 0.4% at 27,344.87 after Prime Minister Yoshihide Suga announced the government is considering declaring a state of emergency for Tokyo and three surrounding prefectures due to surging virus caseloads. (JPX via AP)

Traders are “perhaps a bit over-eager” but believe vaccines will “provide the ultimate economic kick-start, offering a massive booster shot to corporate profits,” said Innes.

The Shanghai Composite Index gained 0.3% to 3,481.98 and the Hang Seng in Hong Kong gained 0.3% to 27,308.63.

The Nikkei 225 in Tokyo was off 0.4% at 27,344.87 after Prime Minister Yoshihide Suga announced the government is considering declaring a state of emergency for Tokyo and three surrounding prefectures due to surging virus caseloads. Suga asked restaurants and bars to close by 8 p.m. and said it would be difficult to restart a controversial travel promotion program that was suspended last month. He also said the government would expedite approval of coronavirus vaccines and begin providing injections in February.

In this photo released by JPX, Japan's Finance Minister Taro Aso tolls a bell during a ceremony marking the start of this year's trading in Tokyo Monday, Jan. 4, 2021. The Nikkei 225 in Tokyo was off 0.4% at 27,344.87 after Prime Minister Yoshihide Suga announced the government is considering declaring a state of emergency for Tokyo and three surrounding prefectures due to surging virus caseloads. (JPX via AP)

In this photo released by JPX, Japan's Finance Minister Taro Aso tolls a bell during a ceremony marking the start of this year's trading in Tokyo Monday, Jan. 4, 2021. The Nikkei 225 in Tokyo was off 0.4% at 27,344.87 after Prime Minister Yoshihide Suga announced the government is considering declaring a state of emergency for Tokyo and three surrounding prefectures due to surging virus caseloads. (JPX via AP)

The Kospi in Seoul rose 2% to 2,930.38 and Sydney’s S&P-ASX 200 added 0.2% to 6,661.10. Singapore and Jakarta also advanced.

On Wall Street, the benchmark S&P 500 index rose 0.6% to a high of 3,756.07 on Thursday, its final trading day of 2020. It ended the year up 16.3%, or a total return of about 18.4% with dividends.

The Dow Jones Industrial Average rose 0.7% to a record 30,606.48. The Nasdaq composite added 0.1% to 12,888.28.

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high.(AP PhotoVincent Yu)

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high.(AP PhotoVincent Yu)

Vaccine development by U.S., European and Chinese producers has helped investor optimism that a return to normal might be closer after the global economy’s worst decline since the 1930s.

The United States and Britain have approved Pfizer Inc.’s vaccine and Britain approved a second vaccine from AstraZeneca and Oxford University. The Chinese government has approved its first domestically developed vaccine. Others are being tested.

Governments might not throw as much stimulus at their economies as they did last year, but policy is “still at a very loose setting,” which supports stock prices and lending, said Kerry Craig of JP Morgan Asset Management in a report.

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoVincent Yu)

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoVincent Yu)

“Investors should look through the bumpier start to the new economic cycle and focus on the improved earnings outlook,” Craig said.

In energy markets, benchmark U.S. crude gained 56 cents to $49.08 per barrel in electronic trading on the New York Mercantile Exchange. The contract rose 12 cents on Thursday to $48.52. Brent crude, used to price international oils, added 67 cents to $52.47 per barrel in London. It rose 17 cents the previous session to $51.80.

The dollar declined to 102.99 yen from Thursday’s 103.27. The euro rose to $1.2258 from $1.2211.

South Korean financial officers wearing face masks celebrate the opening for the Year 2021 trading outside of the Korea Exchange in Seoul, South Korea, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoLee Jin-man)

South Korean financial officers wearing face masks celebrate the opening for the Year 2021 trading outside of the Korea Exchange in Seoul, South Korea, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoLee Jin-man)

People walk by an electronic stock board of a securities firm in Tokyo, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. Market benchmarks in Shanghai, Hong Kong, Seoul and Sydney advanced. Tokyo declined.((AP PhotoKoji Sasahara)

People walk by an electronic stock board of a securities firm in Tokyo, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. Market benchmarks in Shanghai, Hong Kong, Seoul and Sydney advanced. Tokyo declined.((AP PhotoKoji Sasahara)

People walk by an electronic stock board of a securities firm in Tokyo, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. Market benchmarks in Shanghai, Hong Kong, Seoul and Sydney advanced. Tokyo declined.(AP PhotoKoji Sasahara)

People walk by an electronic stock board of a securities firm in Tokyo, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. Market benchmarks in Shanghai, Hong Kong, Seoul and Sydney advanced. Tokyo declined.(AP PhotoKoji Sasahara)

A huge screen shows the Korea Composite Stock Price Index (KOSPI) as workers clear the floor after the opening ceremony of the 2021 trading year at the Korea Exchange in Seoul, South Korea, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoLee Jin-man)

A huge screen shows the Korea Composite Stock Price Index (KOSPI) as workers clear the floor after the opening ceremony of the 2021 trading year at the Korea Exchange in Seoul, South Korea, Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoLee Jin-man)

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoVincent Yu)

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange Monday, Jan. 4, 2021. Asian stock markets rose on 2021’s first trading day, boosted by optimism about the rollout of coronavirus vaccines after Wall Street ended the year on a new high. (AP PhotoVincent Yu)