NEW YORK (TheStreet) -- Investors looking to buy gold should pay attention to gold mining stocks Barrick Gold (ABX) , Yamana Gold (AUY) - Get Report , Goldcorp (GG) and Newmont Mining (NEM) - Get Report , which have dramatically lagged the price of the precious metal so far in 2015.

Unless Comex gold has a bad day on Friday, the gold futures contract will end the week with a positive weekly chart profile. With gold trading between $1,140 and $1,150 per troy ounce Friday morning, a close above its key weekly moving average of $1,131.3 will be positive as weekly momentum is projected to rise to 41.71 this week up from 37.44 on Sept. 18. The near-term upside is to the 200-day simple moving average of $1,179.4. The longer-term upside is to the 200-week simple moving average as the reversion to the mean of $1,400.9.

Investors concerned about the global economy and worried about spreading bear markets in stock markets around the world should allocate 5% to 10% of their diversified portfolios to gold mining stocks. Here are the daily charts for four portfolio candidates.

Here's the daily chart for Barrick Gold.


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Barrick Gold is trading at $6.42 after closing at $6.56 Thursday, down 39% year to date with the stock below its 50-day and 200-day simple moving averages of $7.07 and $10.60, respectively. This "death cross" was confirmed on Sept. 22, 2014, when the stock closed at $15.41. The stock set a multiyear intraday low of $5.91 on Sept. 23 so it's up 11% from this low. The weekly chart is negative but oversold with the stock below its key weekly moving average of $7.25.

Here's the daily chart for Yamana Gold.


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Yamana Gold is trading at $1.69 after closing Thursday at $1.70, down 57.7% year to date with the stock below its 50-day and 200-day simple moving averages of $1.92 and $3.32, respectively. This "death cross" was confirmed on Feb. 21, 2013, when the stock closed at $15.15. The stock set a multiyear low of $1.42 on Sept. 11 so it's up 19.7% from this low. The weekly chart is negative but oversold with the stock below its key weekly moving average of $1.95.

This stock has been an "option on survival" since the stock broke below $3 a share on July 6.

Here's the daily chart for Goldcorp.


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Goldcorp is trading at $13.30 after closing at $13.51 on Thursday, down 27.1% year to date with the stock below its 50-day and 200-day simple moving averages of $13.61 and $17.92, respectively. This "death cross" was confirmed on Oct. 16, 2014, when the stock closed at $23.88. The stock set a multiyear low of $12.19 on Sept. 11 so it's up 10.8% from this low. The weekly chart is negative with the stock below its key weekly moving average of $13.91.

Here's the daily chart for Newmont Mining.


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Newmont Mining is trading at $16.50 after closing Thursday at $16.78, down 11.2% year to date with the stock below its 50-day and 200-day simple moving averages of $17.08 and $21.91, respectively. This "death cross" was last confirmed on Aug. 5 when the stock closed at $16.35. The 50-day and 200-day simple moving averages have been crisscrossing for Newmont making this pattern less useful. The stock set its multiyear low of $15.40 on Sept. 22. The weekly chart is negative but oversold with the stock below its key weekly moving average of $17.52.

Investors who bought the stock on weakness to $16.80 should place a good till canceled limit order to purchase additional shares it the stock if it drops to $12.47, which is a key level on technical charts until the end of 2015.

Keep in mind that Newmont has beaten earnings-per-share estimates for four consecutive quarters.

This article is commentary by an independent contributor. At the time of publication, the author held TK positions in the stocks mentioned.