Investing.com - Barclays analysis reveals iron ore and copper mining stocks are pricing in commodity values below current spot prices, according to a report released on Tuesday.

Iron ore equities BHP Group (NYSE: BHP), Rio Tinto (NYSE: RIO), and Vale (NYSE: VALE) are pricing in iron ore at $98 per ton, compared to the current spot price of $109 per ton. BHP's implied price decreased 1% from $99 per ton last week, while Rio Tinto's rose 2% from $97 per ton and Vale's increased 1% from $97 per ton.

Among copper equities, Antofagasta (OTC: ANFGF) remains the most expensive, pricing in $7.66 per pound or $16,890 per ton, representing a 26% premium to spot prices. This marks a 3% increase from $16,376 per ton last week, driven by a 5% weekly share price gain against a 2% decline in copper prices.

Anglo American (OTC: AAUKY) is pricing in a 20% premium to spot at $16,048 per ton, up 2% from $15,674 last week. Freeport-McMoRan (NYSE: FCX) is pricing in a 4% discount to spot at $12,918 per ton, rising 7% from $12,109 per ton last week following a 14% weekly share price increase.

Glencore (OTC: GLNCY) shows an implied copper price at a 6% discount to spot at $12,568 per ton, down 2% from $12,819 per ton last week. Boliden (OTC: BDNNY) continues as the cheapest in the group, with an implied copper price at a 65% discount to spot or $5,296 per ton, up 14% from $4,616 per ton the prior week.

BHP's implied copper price stands at an 11% discount to spot at $11,885 per ton, up 1% from $11,739 per ton last week.

In precious metals, Hochschild Mining and Endeavour Mining are pricing gold below spot prices at $2,981 per ounce and $3,850 per ounce, respectively, compared to $3,059 per ounce and $3,882 per ounce last week. Fresnillo (OTC: FNLPF) is pricing gold above spot levels at $5,636 per ton, down 3% from $5,803 per ton last week.

For aluminum, Norsk Hydro is pricing LME 12% below spot at $3,148 per ton versus $3,125 per ton last week. South32 (OTC: SHTLF) is pricing in aluminum at $3,606 per ton, up 2% from $3,546 per ton last week, representing 1% above spot.