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Research analyst, valuentum
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At Valuentum, we think a comprehensive analysis of a firm's discounted cash-flow valuation, relative valuation versus industry peers, as well as an assessment of technical and momentum indicators is the best way to identify the most attractive stocks at the best time to buy. This process culminates in what we call our Valuentum Buying Index, which ranks stocks on a scale from 1 to 10, with 10 being the best.

If a company is undervalued both on a DCF and on a relative valuation basis and is showing improvement in technical and momentum indicators, it scores high on our scale. In Silver Wheaton's (NYSE:SLW) case, we think the firm is overvalued. We think it is fairly valued at $17 per share, representing about a 25% downside from today's levels based on our fair value estimate. Silver Wheaton posts a VBI score of 4 on our scale, reflecting our 'oveervalued' DCF assessment of the firm, its unattractive relative valuation versus peers, and bullish technicals. In our analysis we compare Silver Wheaton to peers Cliffs Natural (NYSE:CLF), and Rio Tinto (NYSE:RIO).

Investment Considerations

Investment Highlights

• Silver Wheaton earns a ValueCreation™ rating of EXCELLENT, the highest possible mark on our scale. The firm has been generating economic value for shareholders for the past few years, a track record we view very positively. Return on invested capital (excluding goodwill) has averaged 24.7% during the past three years.

• Silver Wheaton is the world's largest precious metal streaming company, and the world's second largest silver company. The company does not own or operate any mines; streaming allows the firm to purchase a fixed percentage of silver/gold produced from a mine.

• Silver Wheaton has an excellent combination of strong free cash flow generation and low financial leverage. We expect the firm's free cash flow margin to average about 41.8% in coming years. Total debt-to-EBITDA was 0.1 last year, while debt-to-book capitalization stood at 1.6%.

• Silver Wheaton's operating costs are essentially fixed at approximately $4 per ounce of silver produced and $400 per ounce of gold produced. The company does not hedge its silver or gold production, presenting upside and downside risks.

• Management believes its model allows the firm to consistently generate the highest cash operating margins in the industry, but we're not sure that such hefty margins are sustainable over the long haul (given competition from all profit-seeking entities).

Business Quality

Economic Profit Analysis

The best measure of a firm's ability to create value for shareholders is expressed by comparing its return on invested capital (ROIC) with its weighted average cost of capital (WACC). The gap or difference between ROIC and WACC is called the firm's economic profit spread. Silver Wheaton's 3-year historical return on invested capital (without goodwill) is 24.7%, which is above the estimate of its cost of capital of 10.8%. As such, we assign the firm a ValueCreation™ rating of EXCELLENT. In the chart below, we show the probable path of ROIC in the years ahead based on the estimated volatility of key drivers behind the measure. The solid grey line reflects the most likely outcome, in our opinion, and represents the scenario that results in our fair value estimate.

Cash Flow Analysis

Firms that generate a free cash flow margin (free cash flow divided by total revenue) above 5% are usually considered cash cows. Silver Wheaton's free cash flow margin has averaged about 36.8% during the past 3 years. As such, we think the firm's cash flow generation is relatively STRONG. The free cash flow measure shown above is derived by taking cash flow from operations less capital expenditures and differs from enterprise free cash flow (FCFF), which we use in deriving our fair value estimate for the company. For more information on the differences between these two measures, please visit our website at Valuentum.com. At Silver Wheaton, cash flow from operations increased about 125% from levels registered two years ago, while capital expenditures expanded about 272% over the same time period.

Valuation Analysis

Our discounted cash flow model indicates that Silver Wheaton's shares are worth between $13.00 - $21.00 each. The margin of safety around our fair value estimate is driven by the firm's MEDIUM ValueRisk™ rating, which is derived from the historical volatility of key valuation drivers. The estimated fair value of $17 per share represents a price-to-earnings (P/E) ratio of about 10.3 times last year's earnings and an implied EV/EBITDA multiple of about 7.6 times last year's EBITDA. Our model reflects a compound annual revenue growth rate of 1% during the next five years, a pace that is lower than the firm's 3-year historical compound annual growth rate of 52.6%. Our model reflects a 5-year projected average operating margin of 57.2%, which is below Silver Wheaton's trailing 3-year average. Beyond year 5, we assume free cash flow will grow at an annual rate of 3.4% for the next 15 years and 3% in perpetuity. For Silver Wheaton, we use a 10.8% weighted average cost of capital to discount future free cash flows.

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Margin of Safety Analysis

Our discounted cash flow process values each firm on the basis of the present value of all future free cash flows. Although we estimate the firm's fair value at about $17 per share, every company has a range of probable fair values that's created by the uncertainty of key valuation drivers (like future revenue or earnings, for example). After all, if the future was known with certainty, we wouldn't see much volatility in the markets as stocks would trade precisely at their known fair values. Our ValueRisk™ rating sets the margin of safety or the fair value range we assign to each stock. In the graph below, we show this probable range of fair values for Silver Wheaton. We think the firm is attractive below $13 per share (the green line), but quite expensive above $21 per share (the red line). The prices that fall along the yellow line, which includes our fair value estimate, represent a reasonable valuation for the firm, in our opinion.

Future Path of Fair Value

We estimate Silver Wheaton's fair value at this point in time to be about $17 per share. As time passes, however, companies generate cash flow and pay out cash to shareholders in the form of dividends. The chart below compares the firm's current share price with the path of Silver Wheaton's expected equity value per share over the next three years, assuming our long-term projections prove accurate. The range between the resulting downside fair value and upside fair value in Year 3 represents our best estimate of the value of the firm's shares three years hence. This range of potential outcomes is also subject to change over time, should our views on the firm's future cash flow potential change. The expected fair value of $22 per share in Year 3 represents our existing fair value per share of $17 increased at an annual rate of the firm's cost of equity less its dividend yield. The upside and downside ranges are derived in the same way, but from the upper and lower bounds of our fair value estimate range.

Pro Forma Financial Statements

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Source: Silver Wheaton Remains Overvalued Despite Stock Price Dip

Additional disclosure: RIO is included in the portfolio of our Best Ideas Newsletter.