So far today the S&P/ASX 200 (Index: ^AXJO) (ASX: XJO) hasn’t been able to build on yesterday’s strong gains. In afternoon trade the index is down by 0.2% to 5,417 points, with the majority of sectors heading lower.

Four shares which have dropped significantly are as follows:

Altium Limited (ASX: ALU) shares are down around 6% to $9.32 today following the release of a research note out of global investment bank UBS. The note revealed that its analysts had downgraded the printed circuit board software provider from a buy to a sell, but maintained its $9.05 price target. The downgrade was done for valuation reasons, with analysts believing its share price had got a little ahead of itself. I believe this sell off brings its shares down to a great entry price for investors.

Alumina Limited (ASX: AWC) shares have dropped over 3% to $1.44 today despite no further news out of the company. Considering its shares had rallied over 15% since it settled its dispute with US-based mining giant Alcoa over their Australian joint venture on Friday, I wouldn’t be surprised if there’s a spot of profit taking going on today.

Cover-More Group Ltd (ASX: CVO) shares are down in the dumps once again, this time the travel insurance provider’s share price has dropped almost 5% to $1.30. This means that Cover-More’s shares have now dropped by over 9% since it was announced on Friday that it was being removed from the S&P/ASX 200 index at the next quarterly rebalance on September 16.

Doray Minerals Limited (ASX: DRM) shares have dropped 5% to 73 cents after the Australian gold producer released a project update and production guidance to the market. It would appear as though the market was disappointed with its combined production guidance of 105,000 to 120,000 ounces and an all-in sustaining cost of between $1,300 and $1,400 an ounce. These costs seem quite high to me and will no doubt be a squeeze on margins.

If your portfolio took a hit today then I would highly recommend taking a look at these three fantastic shares. Each could be just what your portfolio needs to take it to the next level.

Why These 3 Blue Chip Shares Are Set to Soar in 2016

Discover The Motley Fool's Top 3 blue chips for 2016. These 3 'new breed' shares pay fully franked dividends AND offer the prospect of significant capital appreciation. Simply click here to gain access to this comprehensive FREE investment report.

No credit card required!

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 James Mickleboro has no position in any stocks mentioned. The Motley Fool Australia owns shares of Altium. 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.