The British pound, which had fallen 0.51% on Thursday after Johnson’s call for a general election on Dec. 12
Asian shares inched up on Friday, tracking small gains in world markets as positive earnings offset economic growth concerns, while sterling weakened as the prospect of a UK election added fresh uncertainty to Brexit dramas.
In early trade in Asia, MSCI's broadest index of Asia-Pacific shares outside Japan was 0.13% higher. Australian shares added 0.66% and Japan's Nikkei .N225 ticked up 0.15%.
The British pound, which had fallen 0.51% on Thursday after Johnson's call for a general election on Dec. 12, extended its slide, edging down to $1.2844.
British Prime Minister Boris Johnson conceded on Thursday for the first time that he would not meet his "do or die" deadline to leave the European Union next week.
Continued uncertainty over Brexit comes against the backdrop of pertinently sluggish growth.
New orders for US-made capital goods fell more than expected in September and shipments also declined, in a sign that business investment remains soft.
A Reuters poll of economists in recent weeks showed that most think a steeper decline in global growth is more likely than a synchronized recovery, despite central bank easing.
In his last meeting as president of the European Central Bank, Mario Draghi left ECB policy and guidance unchanged, but advised his successor to "never give up" on propping up the eurozone economy in the face of a worsening outlook.
On Wall Street, strong quarterly results from Microsoft (MSFT.O) and PayPal (PYPL.O) helped lift the tech-heavy Nasdaq, which closed up 0.81% at 8,185.80.
The S&P 500 .SPX also rose, gaining 0.19% on the day, but the Dow Jones Industrial Average .DJI finished 0.11% lower at 26,805.53, weighed down by 3M (MMM.N) after the company cut its full-year earnings forecast.
However, caution prevails despite the gains in risk assets in recent weeks, supported by apparent progress in Brexit negotiations and China-US trade talks.
"On the whole, we conclude that we have not entered into a new 'risk on' phase from a broader trend perspective just yet," said George Davis, chief technical strategist at RBC Dominion Securities.
Investors are also nervous ahead of a summit in Chile where US President Donald Trump hopes to finalize a partial trade deal with China's Xi Jinping.
Rattling confidence was a speech by US Vice President Mike Pence on Thursday, which criticized China's handling of the Hong Kong protests and its treatment of Muslim Uighurs in the Xinjiang region. Those comments sent the S&P 500 index briefly lower.
The yield on benchmark 10-year Treasury notes was lower, falling to 1.759% compared with its US close of 1.766% on Thursday. The two-year yield, which rises with traders' expectations of higher Fed fund rates, was down at 1.5757% compared with a US close of 1.582%.
Investors are widely expecting the US Federal Reserve to cut interest rates for a third time this year at its monetary policy meeting next week.
Those expectations had helped to lift gold prices, but the precious metal XAU= was lower on Friday, dropping 0.14% to $1,501.10 per ounce.
The dollar gained 0.05% against the yen to 108.66 JPY= and the euro EUR= was barely lower on the day at $1.1101.
The dollar index .DXY, which tracks the greenback against a basket of six major rivals, nudged 0.05% higher to 97.680.
Oil prices were lower after rising on Thursday on a surprise drop in US crude inventories and the hopes for market-supporting actions by OPEC and its allies.
West Texas Intermediate (WTI) crude was down 0.28% to $56.07 a barrel, and global benchmark Brent crude dipped 0.31% to $61.48 per barrel.