Why these 4 ASX shares are ending the week in the red

The benchmark S&P/ASX 200 (Index: ^AXJO) (ASX: XJO) has followed the positive lead of international markets and is 0.7% higher to 6,122 points in afternoon trade.

Four shares that have failed to follow the market higher are listed below. Here’s why they are ending the week in the red:

The Buddy Platform Ltd (ASX: BUD) share price has fallen 4% to 24 cents. With no news out of the Internet of Things company, I suspect today’s decline could be down to profit taking. Prior to today Buddy Platform’s shares had climbed 316% since this time last year.

The Nearmap Ltd (ASX: NEA) share price has dropped 1.5% to 65 cents. Investors appear to be undecided on the aerial imagery company’s prospects in the lucrative U.S. market. While progress has been slower than expected in the market, it does represent a huge opportunity for Nearmap.

The SDI Limited (ASX: SDI) share price has plunged 20% to 47.5 cents after the dental products company provided the market with a trading update. SDI advised that sales for the 6 months ending 31 December 2017 are expected to be $33.6 million, 2.2% lower than the prior corresponding period. A sharp decline in Amalgam product sales have weighed heavily on its performance.

The WiseTech Global Ltd (ASX: WTC) share price is down almost 2% to $14.20. Like Buddy Platform, investors appear to be taking profit after a strong share price gain over the last 12 months. One Motley Fool contributor labelled the logistics platform provider as a sell this morning. You can read why here.

Here are three exciting shares that I think are buys today.

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Motley Fool contributor James Mickleboro has no position in any of the stocks mentioned. The Motley Fool Australia owns shares of and has recommended Nearmap Ltd. The Motley Fool Australia owns shares of WiseTech Global. 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.

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