Every investor can appreciate a stock that consistently beats the Street without getting ahead of its fundamentals and risking a meltdown. The best stocks offer sustainable market-beating gains, with improving financial metrics that support strong price growth. Let's take a look at what Sherwin-Williams' (NYSE: SHW) recent results tell us about its potential for future gains.

What the numbers tell you
The graphs you're about to see tell Sherwin-Williams' story, and we'll be grading the quality of that story in several ways.

Growth is important on both top and bottom lines, and an improving profit margin is a great sign that a company's become more efficient over time. Since profits may not always be reported at a steady rate, we'll also look at how much Sherwin-Williams' free cash flow has grown in comparison to its net income.

A company that generates more earnings per share over time, regardless of the number of shares outstanding, is heading in the right direction. If Sherwin-Williams' share price has kept pace with its earnings growth, that's another good sign that its stock can move higher.

Is Sherwin-Williams managing its resources well? A company's return on equity should be improving, and its debt to equity ratio declining, if it's to earn our approval.

Healthy dividends are always welcome, so we'll make sure that Sherwin-Williams' dividend payouts are increasing, but at a level that can be sustained by its free cash flow.

By the numbers
Now, let's take a look at Sherwin-Williams' key statistics:

SHW Total Return Price Chart

SHW Total Return Price data by YCharts

Passing Criteria

3-Year* Change

Grade

Revenue Growth > 30% 24.1% Fail
Improving Profit Margin 9.4% Pass
Free Cash Flow Growth > Net Income Growth (14.9%) vs. 24.4% Fail
Improving Earnings per Share 38.8% Pass
Stock Growth (+ 15%) < EPS Growth 194.1% vs. 38.8% Fail

Source: YCharts. * Period begins at end of Q2 2009.


SHW Return on Equity Chart

SHW Return on Equity data by YCharts

Passing Criteria

3-Year* Change

Grade

Improving Return on Equity 25.8% Pass
Declining Debt to Equity 75.1% Fail
Dividend Growth > 25% 9.9% Fail
Free Cash Flow Payout Ratio < 50% 23.1% Pass

Source: YCharts. * Period begins at end of Q2 2009.

How we got here and where we're going
Sherwin-Williams' stock price seems to have left its fundamentals in the dust. Tepid growth on several fronts, a mediocre dividend increase, and a large increase in the company's debt to equity ratio earn Sherwin-Williams only four of nine possible passing grades.

Sherwin-Williams rode a housing-sector rebound (or at least the hope of one) to great gains in the past year, but it's not alone. Fellow paint makers PPG Industries (NYSE: PPG) and Valspar (NYSE: VAL) are also booming. From Home Depot (NYSE: HD) to homebuilder Hovnanian (NYSE: HOV), stocks all across the housing spectrum have been flying high, beating expectations and growing their sales as homeowners (and prospective homeowners) across the country look for ways to affordably upgrade their living environs.

However, some of these companies have been buoyed more by hope than reality. Sherwin-Williams has the highest valuation metrics of its peers in most categories, as my fellow Fool Justin Loiseau points out. PPG and Valspar are comparatively inexpensive next to Sherwin-Williams' 30 P/E. An estimated 20% growth rate next year won't be enough to bring the company's stock price closer in line with its fundamentals, unless a decline is in the cards.

Justin also points out that raw material costs have been on the upswing, but Sherwin-Williams has raised prices to compensate. Higher prices have their own dangers, as competitors simply could try to compete by offering lower prices, hoping to offset reduced margins with higher volumes. Paint isn't exactly a product that's known for defensible pricing power.

If housing has indeed rebounded, Sherwin-Williams could easily post better growth rates than we've seen, bringing its fundamentals more in line with its stock price. There's a growing body of evidence that the housing bottom has been hit, so future quarters could earn Sherwin-Williams more passing grades from this analysis. For now, this stock's growth seems to have pushed beyond sustainable levels.

Putting the pieces together
Sherwin-Williams has a few of the qualities that make up a great stock, but no stock is truly perfect. These numbers are likely to change over time, so it's important to keep track of Sherwin-Williams' progress. The Fool is here to help. When you add Sherwin-Williams to your free personalized Watchlist, you'll get updates whenever we uncover any news you'll need.

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