Markets are swinging wildly. Here's what you need to know

this'll correction has been overdue. We've been talking to clients since October that we expected it and the markets have kept going higher and higher. So part of it is fraud. That market is probably overbought and the correction is expected. And we tell clients all the time that you know, 10 to 15% correction even up to 20% is not unusual. In fact, that makes it a healthy environment for the market. You know, we've speaking clients at someone to buy someone a cell, and it's just a matter of for us going back to financial planning and looking at what your goals are and realizing you're okay because you've made money in the market, you're gonna give some back. This is not 7 2008 all over again. What what are your goals and objectives? You know the ideas. Take emotions out of investing because if you know what your asset allocation should be periodically during the year, fine tune your portfolio so that if portfolio has gone up because of the stock portfolio, which sectors sell some when the market's doing well to bring it down to where you want to pay and buy what's underperformed, so the idea is to try to take the emotions out of the investing, but when everything is falling quickly, it's very hard to do that.

Investors could be forgiven for having whiplash after the events of the past week.What's happening: Following the worst week for U.S. stocks since the 2008 financial crisis, the S&P 500 kicked off March with a massive 4.6% rally, the index's largest one-day percentage gain since December 2018.Video above: Financial planner says keep emotions out of investingInvestors are piling back into risky assets on hopes that the world's central banks and other policymakers will step in to limit the economic and financial damage caused by the novel coronavirus outbreak.The Federal Reserve, Bank of Japan, European Central Bank and Bank of England have all issued unscheduled statements in recent days aimed at preventing panic."We stand ready to take appropriate and targeted measures, as necessary and commensurate with the underlying risks," ECB President Christine Lagarde said Monday.On Tuesday, Australia's central bank cut interest rates by 25 basis points. Canada's central bank is expected to follow suit on Wednesday.G7 finance ministers and central bank chiefs, after speaking by phone Tuesday, released a joint statement saying that ministers "are ready to take actions, including fiscal measures where appropriate," while central banks would support price stability, economic growth and "the resilience of the financial system."But the statement made no mention of coordinated rate cuts or other policy measures by central banks, and did not commit governments to increase spending or cut taxes. S&P 500 futures turned negative and Dow futures lost 390 points following the statement.And there are limits to what central banks can do in the current environment. Their policy arsenal is already depleted after years of low interest rates and bond-buying programs.Plus, their tools would provide an imperfect response to the problems at hand. While lower interest rates could help ease financial conditions, which have tightened in recent days, they can't remedy snarled supply chains and lower factory output, or the fact that people don't want to take vacations or eat out at restaurants, Neil Shearing, group chief economist at Capital Economics, told me.Monetary policy changes also take some time to feed through the system. "It's doubtful that it will have an immediate effect in cushioning any downturn from the virus," he said.Know this: History shows that markets tend to post powerful rebounds the week after severe selling, my CNN Business colleague Matt Egan reports.In the week after a drop of at least 10%, the S&P 500 has averaged a 3.5% gain, according to Bespoke Investment Group.But in the longer run, results are more mixed. Matt notes that in October 2008, at the height of the financial crisis, stocks spiked 4.6% after plummeting 18% the week prior. But the index was down both three and six months later, and didn't reach its low point until March 2009.Exchange volumes hit records on heavy tradingInvestors have not been sitting on the sidelines as financial markets get rocked by the global spread of the novel coronavirus.Trading volumes skyrocketed in February, according to data from companies that run exchanges.Friday marked the highest volume trading day ever for CME Group, which operates the world's largest futures market. Trading volume was lower on Monday but remained elevated.Intercontinental Exchange, which owns the New York Stock Exchange, said that it processed a record daily average of 7.6 million futures and options contracts last month. Commodities futures and options contracts traded across the month also hit an all-time high.Good for business: While company after company has issued warnings about how the virus will hit profits in 2020, the owners of exchanges and other trading platforms stand to benefit from volatility.CMC Markets, an online trading platform based in London, on Tuesday raised its income guidance for the 12 months ending in March, citing heightened trading activity in January and February.'Stay at home' stocks like Netflix get a boostAs a growing number of companies encourage employees to work from home, stocks that get a boost when people stay indoors are reaping rewards.Shares of Netflix have risen nearly 18% this year, while the broader S&P 500 is down 4.4%. Movie theater chains AMC and Cinemark have plunged by more than 15% and nearly 27%, respectively.Another beneficiary: Amazon, which has seen shares climb 5.7% this year.In a recent note to clients, UBS observed that internet stocks could provide some relief in uncertain times. Telemedicine and online tutoring businesses are at an advantage, along with food delivery, e-commerce and streaming services, the bank said.UBS continues to recommend the Nasdaq Internet Index, whose top holdings include Netflix, Amazon, Google, Alibaba and Facebook.

Investors could be forgiven for having whiplash after the events of the past week.

What's happening: Following the since the 2008 financial crisis, the S&P 500 kicked off March with a massive 4.6% rally, the index's largest one-day percentage gain since December 2018.

Video above: Financial planner says keep emotions out of investing

Investors are piling back into risky assets on hopes that the world's central banks and other policymakers will step in to limit the economic and financial damage caused by the novel coronavirus outbreak.

The Federal Reserve, Bank of Japan, European Central Bank and Bank of England have all issued unscheduled statements in recent days aimed at preventing panic.

"We stand ready to take appropriate and targeted measures, as necessary and commensurate with the underlying risks," ECB President Christine Lagarde said Monday.

On Tuesday, Australia's central bank cut interest rates by 25 basis points. Canada's central bank is expected to follow suit on Wednesday.

G7 finance ministers and central bank chiefs, after speaking by phone Tuesday, released a joint statement saying that ministers "are ready to take actions, including fiscal measures where appropriate," while central banks would support price stability, economic growth and "the resilience of the financial system."

But the statement made no mention of coordinated rate cuts or other policy measures by central banks, and did not commit governments to increase spending or cut taxes. S&P 500 futures turned negative and Dow futures lost 390 points following the statement.

And there are limits to what central banks can do in the current environment. Their policy arsenal is already depleted after years of low interest rates and bond-buying programs.

Plus, their tools would provide an imperfect response to the problems at hand. While lower interest rates could help ease financial conditions, which have tightened in recent days, they can't remedy snarled supply chains and lower factory output, or the fact that people don't want to take vacations or eat out at restaurants, Neil Shearing, group chief economist at Capital Economics, told me.

Monetary policy changes also take some time to feed through the system. "It's doubtful that it will have an immediate effect in cushioning any downturn from the virus," he said.

Know this: History shows that markets tend to post powerful rebounds the week after severe selling, my CNN Business colleague Matt Egan reports.

In the week after a drop of at least 10%, the S&P 500 has averaged a 3.5% gain, according to Bespoke Investment Group.

But in the longer run, results are more mixed. Matt notes that in October 2008, at the height of the financial crisis, stocks spiked 4.6% after plummeting 18% the week prior. But the index was down both three and six months later, and didn't reach its low point until March 2009.

Exchange volumes hit records on heavy trading

Investors have not been sitting on the sidelines as financial markets get rocked by the global spread of the novel coronavirus.

Trading volumes skyrocketed in February, according to data from companies that run exchanges.

Friday marked the highest volume trading day ever for CME Group, which operates the world's largest futures market. Trading volume was lower on Monday but remained elevated.

Intercontinental Exchange, which owns the New York Stock Exchange, said that it processed a record daily average of 7.6 million futures and options contracts last month. Commodities futures and options contracts traded across the month also hit an all-time high.

Good for business: While company after company has issued warnings about how the virus will hit profits in 2020, the owners of exchanges and other trading platforms stand to benefit from volatility.

CMC Markets, an online trading platform based in London, on Tuesday raised its income guidance for the 12 months ending in March, citing heightened trading activity in January and February.

'Stay at home' stocks like Netflix get a boost

As a growing number of companies encourage employees to work from home, stocks that get a boost when people stay indoors are reaping rewards.

Shares of Netflix have risen nearly 18% this year, while the broader S&P 500 is down 4.4%. Movie theater chains AMC and Cinemark have plunged by more than 15% and nearly 27%, respectively.

Another beneficiary: Amazon, which has seen shares climb 5.7% this year.

In a recent note to clients, UBS observed that internet stocks could provide some relief in uncertain times. Telemedicine and online tutoring businesses are at an advantage, along with food delivery, e-commerce and streaming services, the bank said.

UBS continues to recommend the Nasdaq Internet Index, whose top holdings include Netflix, Amazon, Google, Alibaba and Facebook.

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