It has been a horrible start to the shortened trading week with the S&P/ASX 200 (Index: ^AXJO) (ASX:XJO) down by 2.1% to 5,200 points.

Uncertainty regarding the “Brexit” vote is the main reason behind today’s savage sell-off, but amidst all of the carnage, these four shares are actually climbing higher today:

Northern Star Resources Ltd (ASX: NST)

Unsurprisingly, the gold sector is one of the few sectors in positive territory today as investors continue to look for safe-haven assets. Northern Star Resources is one of the best performing stocks in the sector with its shares hitting an all-time high of $5 in early trade. The shares have managed to hold on to most of their gains and are still trading 3.5% higher at $4.93 per share. Northern Star is now Australia’s third-largest listed gold miner with zero debt and has one of the lowest cost production profiles in the sector.

Shares of Northern Star have climbed 129% over the last 12 months.

Regis Resources Limited (ASX: RRL)

Shares of Regis Resources have shot up more than 7% today after the gold miner announced it has discovered a potentially viable deposit near its existing Garden Well processing facility in Western Australia. Regis Resources will now continue further drilling to determine if there are any other significant deposits nearby. This is clearly welcome news for investors and today’s announcement adds to the generally positive mood supporting the gold sector.

Shares of Regis Resources are up a massive 202% over the past 12 months.

Metcash Limited (ASX: MTS)

Metcash shares have gained more than 2.4% today despite no news being released to the market. The company is expected to release its full year results on 20 June. As highlighted here, Metcash remains one of the most short sold shares on the ASX so today’s price movement could also be the result of some covering before the results are released.

Metcash shares have risen 94% over the past 12 months.

Aristocrat Leisure Limited (ASX: ALL)

Aristocrat shares have performed extremely well since the company released a profit upgrade back in May and continued to outperform the broader market today, rising another 0.7% to $13.25. The poker machine manufacturer recorded profit growth of 66% in its first half to deliver shareholders its tenth consecutive period of earnings growth. It’s unsurprising then to see the shares perform so strongly, although the current valuation is starting to look a little expensive.

Shares of Aristocrat have increased by 70% over the past 12 months.

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Motley Fool contributor Christopher Georges has no position in any stocks mentioned. The Motley Fool Australia has no position in any of the stocks mentioned. 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.