BOSTON (TheStreet) -- Coeur D'Alene Mines' (CDE - Get Report) stock price has benefited from a surge in silver prices as the company dumped money into mines to boost production.

Yet, TheStreet Ratings' stock model urges caution. Compared with its three main competitors in the silver-mining industry -- Silver Wheaton ( SLW), Pan American Silver ( PAAS - Get Report) and Silvercorp ( SVM - Get Report) -- Coeur D'Alene gets a "hold" (or C rating), the lowest in the group. The other three receive "buy" ratings.

The company's total return rating (which measures the stock's recent price momentum) is a somewhat favorable 3.5 out of 5 -- in line with the group. Coeur D'Alene has surged 21% this year as silver has risen to a 31-year high, mirroring gold's increase.

Growth in revenue and earnings has been remarkable as of late for Coeur D'Alene. In the most recent quarter, revenue more than doubled, underlying the company's unevenness. In the long term, growth has trailed that of its rivals, leading to a 2.5 out of 5 rating for the overall growth score. Its competitors get a perfect 5.

A negative return on capital for Coeur D'Alene has also resulted in a low efficiency rating (1.5 out of 5), whereas the other three competitors produced positive investment returns. The overall solvency score (3 out of 5) for Coeur D'Alene looks good, as the company appears to have a somewhat manageable level of debt (debt-to-equity ratio of 10%) on the balance sheet. Yet this still puts the company at the bottom of the pack.

While TheStreet Ratings' model has Coeur D'Alene as a "hold," the company has shown impressive improvements. Although the model updates frequently, it's still backward-looking and depends on historical data to evaluate a stock. Given the negative returns for the company over the past few years, this has held back the model's overall opinion on Coeur D'Alene. Should silver continue its meteoric rise, the company's prospects look promising.

For those looking for diversified exposure to the silver-mining industry, take a look at the Global X Silver Miners ETF ( SIL). The ETF has about 25 holdings, with a 4% position in Coeur D'Alene, 12% in Silver Wheaton, 12% in Pan American Silver and 5% in Silvercorp.

For more information on the ratings and for Coeur D'Alene, visit:

Equity research manager Chris Stuart, CFA, joined Ratings after working as a senior investment analyst with Merrill Lynch covering small-cap equity and alternative investment strategies. Prior to that, Stuart worked for One Beacon Insurance as an actuarial analyst and at H&R Block as a financial adviser.

Stuart earned his bachelor�s degree in finance from the University of Massachusetts, Amherst. He holds a Chartered Financial Analyst (CFA) designation and is a member of the Boston Security Analysts Society (BSAS) and the CFA Institute.