The Bank of International Settlements (BIS) warned that a flurry of sharp sell-offs is expected to continue into 2019. BIS is an umbrella group of the world’s central banks, and the group blames monetary normalization, along with political uncertainty and trade tensions, as the key factors leading to sell-offs.

Rate increases from central banks worldwide are going to continue to impact the equities market, and forex trading has also taken a hit.

The United States is expected to announce another 25 basis points increase next week.

Stocks took the brunt of uncertainty in the markets, and lingering questions on earnings growth continue to concern investors. Trade tensions between the United States and China helped push down the market in early December.

The S&P 500 lost 10% capitalization in October, and the index is down 0.25% in afternoon trade on Monday.

More than half of the stocks on the index are in a bear market, and this is a week after stocks fell into correction territory a week prior.

Dow Jones Industrial has also started the week down 0.71%, with the index losing 2.91% year-to-date. The Nasdaq Composite is also down year-to-date, falling 1.37% and down 0.54% on Monday.

Tech stocks remain under pressure this year with a focus on Facebook (FB), which is at the center of numerous data breaches and privacy concerns. The company’s stock has lost 22% value year-to-date and is in the news again for being manipulated by the Russians and allowing access to millions of private photos on the platform.

The Senate’s Intelligence Committee found that Russia’s Internet Research Agency was able to purchase advertisements that were meant to sway elections in the United States. Reports show that even regular posts, many on Facebook and the company’s subsidiaries, were able to gain traction and change the minds of potential voters.

Tech companies, including Facebook, Twitter (TWTR) and Google (GOOGL), were also found to do the bare minimum to meet the requests of the Senate Select Committee as pertains to the Russian misinformation campaigns.

Google’s stock is down 2% on the year.

Banking stocks have been able to pad the markets on Monday, while retailers and health stocks continue to slide. An Obama ruling has impacted health stocks, after a Texas judge ruled that the Affordable Care Act is unconstitutional, leaving health stocks with a potential loss of millions of customers in the process. Hospitals would also face higher risks as more uninsured patients enter facilities.