US stocks trading mixed early Tuesday as UK COVID-19, blacklisted Chinese chipmaker drag on gains

U.S. equity futures are trading mixed early Tuesday hours before the opening bell, as worries over a new strain of coronavirus striking the United Kingdom tempered U.S. markets one day after Congress passed a long-awaited $900B coronavirus package.

On Friday the Trump administration blacklisted China’s top chipmaker, limiting Semiconductor Manufacturing International Corp.’s access to advanced U.S. technology because of its alleged ties to the Chinese military. SMIC denies such ties.

The blacklisting -- as well as the new coronavirus scare -- have diluted any potential boost from the approval by Congress of a $900 billion relief effort for the economy that includes $600 in cash payments for most Americans, extra benefits for laid-off workers and other financial support. The legislation is now awaiting approval by President Donald Trump.

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Economists and investors have been clamoring for such aid for months.

On Monday, the S&P 500 fell 1.4% to 3,694.92. The Dow Jones Industrial Average rose 0.1% to 30,216.45. The Nasdaq composite slipped 0.1% to 12,742.52. The Russell 2000 small-cap index gained 0.1% to 1,970.33.

Meanwhile, in Asia, shares retreated on Tuesday after the U.S. included dozens more Chinese companies in a Commerce Department blacklist in another blow to markets already wracked with uncertainty over the pandemic.

The Shanghai Composite index dropped nearly 2% on Tuesday and other regional markets also were mostly lower.

The Commerce Department announced it was including 103 entities on a new “Military End User" list, including 58 Chinese and 45 Russian companies.

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Such a designation requires special licensing for exports and other sales of designated products to the listed companies to prevent certain technologies from being used by foreign militaries in China, Russia or Venezuela, it said.

Many of the companies are related to aviation and shipbuilding. But the list adds to trade and financial sanctions and other controls that have taken relations between Washington and Beijing to their worst level in decades.

Tokyo's Nikkei 225 fell 1% to 26,436.39. In Hong Kong, the Hang Seng sank 0.8% to 26,097.79. South Korea's Kospi declined 1.6% to 2,733.68. In Australia, the S&P/ASX 200 gave up 1.1% to 6,599.60. The Shanghai Composite index shed nearly 64 points to 3,356.78.

News of the new and potentially more infectious strain of the coronavirus has countries around the world restricting travel from the United Kingdom. That has traders worried about the possible economic consequences should it spread to other countries or prove resistant to vaccines being distributed now.

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With new uncertainties, “investors appear to be treading more cautiously in Asia this morning, getting more selective and probably waiting for the new mutant virus to be better understood before aggressively diving back into the Airlines, Travel & Leisure vaccinated bandwagon,'' Stephen Innes of Axi said in a commentary.

Stocks, oil prices and Treasury yields fell on Monday, a sign investors are uneasy about the economy.

U.K. Prime Minister Boris Johnson put London and the southeast of England in a new level of restrictions after scientific advisers warned they had detected the new variant of the coronavirus. There is no evidence that the new strain’s mutations make it more deadly, but it seems to infect more easily than others.

The yield on the 10-year Treasury held steady at 0.93%.

Benchmark U.S. crude oil lost $1.20 to $46.77 per barrel in electronic trading on the New York Mercantile Exchange. It gave up $1.27 on Monday to $47.97 per barrel.

Brent crude, the international standard, slipped $1.15 to $49.76 per barrel.

The dollar rose to 103.43 Japanese yen from 103.31 yen on Monday. The euro fell to $1.2222 from $1.2243.