As I write, the S&P/ASX 200 (Index: ^AXJO) (ASX: XJO) has plunged 3.3% and where it will end no-one knows.
Put that down to the fact that Donald Trump has taken a slim lead in the US election over the pre-election favourite Hillary Clinton.
Brexit part II coming up it seems.
But no matter what the market is doing, Foolish investors need to keep their heads.
Don't sell out. Don't panic.
It doesn't matter that Macquarie Group Ltd (ASX: MQG) is down 6.6%. Or that miners BHP Billiton Limited (ASX: BHP) and Rio Tinto Limited (ASX: RIO) are down 4.4% and 3.9% respectively.
And there's simply one reason for that. Despite the prospect of the next US president being Donald Trump, the impact he has if elected are unlikely to be that bad.
There's also still plenty of time left for votes to be counted and Mrs Clinton to retake the lead. And if I had to make a bet on the outcome, I'd still be betting on a Clinton win.
If that occurs, you can expect to see our markets reverse course and recover most, if not all of the losses we are seeing so far today.
We could even see our market swing into positive territory by the end of today if results go Mrs Clinton's way.
Investors also need to remember that even after Brexit, our markets recovered as they had time to digest the news.
Selling out now more than likely means crystallising losses, and missing out on the recovery.
So what should investors do?
Turn the market off, stop looking at your portfolio, go and do something else and hold on tight. In a year's time, we'll probably look back on this day as just another blip, and there will be something newer to worry about.
What am I doing?
Not looking at my portfolios for one. Watching those stocks and companies that were too expensive to add to my portfolio before and hoping for a good entry price.
The one thing I definitely won't be doing is buying shares in gold miners.
