NEW YORK (TheStreet) -- Shares of First Majestic Silver (AG - Get Report) are sliding 4.34% to $14.66 late Thursday morning as silver prices trade in the red.

For September delivery, silver is falling 2.66% to $19.67 per ounce on the COMEX this morning.

Silver prices are dropping today as the dollar is firmer. The metal is more expensive to foreign investors when the greenback is strong.

Yesterday, silver prices rallied for a sixth straight session. Precious metals have gained in recent days as lingering concerns about Britain's decision to leave the European Union prompted investors to seek out safe-haven assets such as silver and gold.

Gold for August delivery is declining 0.67% to $1,358 per ounce on the COMEX late Thursday morning.

The Vancouver-based mining company is engaged in silver production, development, exploration and acquisition of mineral properties with a focus on silver production in Mexico.

Separately, TheStreet Ratings Team has a "Sell" rating with a score of D+ on the stock.

The company's weaknesses can be seen in multiple areas, such as its feeble growth in its earnings per share, deteriorating net income and disappointing return on equity.

Recently, TheStreet Ratings objectively rated this stock according to its "risk-adjusted" total return prospect over a 12-month investment horizon. Not based on the news in any given day, the rating may differ from Jim Cramer's view or that of this articles's author.

You can view the full analysis from the report here: AG