Canada's main stock index remained negative on the last trading day of 2017 as some energy and mining stocks pulled back, but was on track for a nearly 6% gain for the year.
The S&P/TSX Composite Index retreated 35.74 points from Thursday's record close to approach noon hour at 16,186.21
The Canadian dollar gained 0.29 cents to 79.87 cents U.S.
Marijuana stocks helped push the healthcare group higher, with Canopy Growth Corp up 4.6% to $31.82 and Aphria up 4.3% to $18.78.
Canada is moving towards the full legalization of cannabis in 2018.
The materials group, which includes precious and base metals miners and fertilizer companies, lost ground, despite gains for Potash Corp of Saskatchewan, up 1.5% to $26.21, and Agrium, up 1.4% to $146.17. The two companies received final approval for a merger earlier in the week.
Hudbay Minerals fell 3.2% to $10.99, First Quantum Minerals was down 2.6% to $17.45, and Teck Resources lost 1.9% to $32.83.
The energy group has lost almost 13% this year, even as U.S. crude oil prices rose 12%, while materials were up 6% and financials added 9%. Those three groups account for almost two-thirds of the index's weight.
The TSX Venture Exchange dropped 2.49 points to 839.75
All but three of the 12 TSX subgroups were in the red Friday, with health-care stocks sinking 1.5%, information technology down 0.5%, and utilities off 0.4%.
The three gainers were gold, up 0.3%, energy, up 0.2%, and materials, squeezing up 0.0%
The Dow Jones Industrial Average eased off 24.3 points to approach noon at 24,813.21
The S&P 500 docked 3.37 points to 2,684.17
The NASDAQ composite index deleted 16.54 points to 6,933.62
Goldman Sachs briefly fell more than 0.7% as the greatest negative impact in the Dow after a filing with the U.S. Securities and Exchange Commission said the financial giant expects fourth-quarter earnings to decrease by about $5 billion, primarily due to repatriation provisions in the new U.S. tax law President Donald Trump signed last week.
The bill cuts the corporate tax rate to 21% from 35%.
The Dow and S&P 500 posted five straight weeks of gains last week after President Donald Trump on Friday signed the tax measure, able to do so after Congress approved another bill to keep the federal government funded through Jan. 19.
The Dow closed at a record Thursday for the 71st time this year and was on pace for slight weekly gains. The last time the Dow rose in each of the final six full weeks of the year was in 1954. That does not include weeks encompassing two different years.
On a monthly basis, the indexes are also set for a historic end to the year.
On a total return basis, which includes dividends, the S&P 500 is on pace to post gains for every month of the calendar year for the first time in history
If the NASDAQ also holds gains for December, it will have posted gains in 11 of 12 months in 2017, a first for the tech-heavy index. The Dow is on pace for its first nine-month winning streak since 1959, and the S&P is on track for its first nine-month winning streak since 1983.
Prices for the benchmark 10-year Treasury note inched upward, lowering yields to 2.41% from Thursday's 2.43%. Treasury prices and yields move in opposite directions.
Oil prices gained 57 cents a barrel to $60.41 U.S.
Gold prices gained $10.30 to $1,307.50 U.S. an ounce.