The S&P/ASX 200 (Index: ^AXJO) (ASX:XJO) has taken a dramatic turn for the worse today after early polling results suggested a Trump victory is not out of the question.

The main index was trading 2% lower at the time of writing, with gold (unsurprisingly) being the only sector in positive territory.

Quite a number of shares are getting smashed today, including:

Aristocrat Leisure Limited (ASX: ALL)

Aristocrat Leisure shares have crashed more than 11.5% today after the gaming company announced that its current CEO, Jamie Odell, would depart in February 2017. Trevor Croker has been appointed as the new CEO and a transition process has already begun to ensure a smooth changeover. Nevertheless, investors are obviously disappointed with the news as Mr Odell has created a huge amount of shareholder value during his time in charge.

News Corp (ASX: NWS)

Shares of News Corp have fallen 5.1% today in what appears to be a delayed response to yesterday’s subdued first quarter result. With the exception of another better-than-expected result from REA Group Limited (ASX: REA), the media company reported a 21% decline in total segment EBITDA, driven by the weak print advertising market and increased programming rights costs. With today’s decline, News Corp shares have fallen around 27% over the past 12 months.

Mayne Pharma Group Ltd (ASX: MYX)

Mayne Pharm shares have continued their volatile streak today after falling 8.2% to $1.50. The generic drug company is currently involved in a US investigation into price collusion which could see the company face serious legal action. Although Mayne Pharm believes the investigation is unlikely to have a meaningful impact on the company’s earnings, the uncertainty surrounding the situation is clearly sending some investors to the exits.

Mantra Group Ltd (ASX: MTR)

Mantra shares have fallen more than 6.3% today, despite no specific news being released by the company. In fairness, a number of other smaller cap shares have also been hit hard in conjunction with the broader market sell off including Bapcor Ltd (ASX: BAP) – down 6.2%, Nextdc Ltd (ASX: NXT) – down 7.2% and Appen Ltd (ASX: APX) – down 5.7%. It appears investors are preferring the safety of some of the larger name shares today, despite their inferior growth prospects.

These Low Interest Rates Could Totally Devastate Your Retirement!

With global interest rates set to remain at these "emergency low" levels for years -- perhaps even decades -- unless you take decisive action NOW, your retirement could be seriously at risk. Click here to learn how to NOT run out of money in retirement.

HOT OFF THE PRESSES: Motley Fool’s #1 Dividend Pick for 2017!

With its shares up 155% in just the last five years, this ‘under the radar’ consumer favourite is both a hot growth stock AND our expert’s #1 dividend pick for 2017. Now we’re pulling back the curtain for you... And all you have to do to discover the name, code and a full analysis is enter your email below!

Simply enter your email now to receive your copy of our brand-new FREE report, “The Motley Fool’s Top Dividend Stock for 2017.”

By clicking this button, you agree to our Terms of Service and Privacy Policy. We will use your email address only to keep you informed about updates to our website and about other products and services we think might interest you. You can unsubscribe from Take Stock at anytime. Please refer to our https://www.fool.com.au/financial-services-guide">Financial Services Guide (FSG) for more information.

Motley Fool contributor Christopher Georges owns shares of MANTRA GRP FPO. The Motley Fool Australia owns shares of Bapcor. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Bruce Jackson.