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Methodology

How we chose the Globe 100

The Globe 100 ranks the best-performing publicly traded corporations based in Massachusetts by how well they increased sales, profits, and shareholder returns during 2012.

S&P Capital IQ gathered information on some 183 Massachusetts companies from sources that included Securities and Exchange Commission filings, commercial news services, and corporate and government reports.

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To be considered for the Globe 100, a company must:

Maintain corporate headquarters in Massachusetts;

Trade its shares on the New York Stock Exchange, the Nasdaq Stock Market, or the NYSE Amex;

Have been a public company for all of 2012; and

Report revenue and profit for both 2011 and 2012.

Royalty trusts and closed-end and exchange-traded funds are excluded. Real estate investment trusts and limited partnerships are included in Globe 100 calculations, but excluded from certain other charts, such as dividend yields, because of the methods used to account for income.

Rankings are derived from financial data for the four quarters
ended closest to Dec. 31, 2012, and for corresponding quarters a year earlier.

The companies are then ranked on four criteria:

Return on average equity, a measure of how effectively shareholder money is employed;

One-year percentage change in revenue;

One-year percentage change in profit margin; and

2012 revenue.

Companies are assigned a score in each of the four categories, based on their rankings; the four scores are then added together. Companies are ranked highest to lowest, based on their total score. Ties are broken based on 2012 revenue.

For example, this year’s top performer, Smith & Wesson Holding Corp. of Springfield, ranked third in return on equity; fifth in change in revenue; fourth in change in profit margin; and 50th in revenue, giving the company a total score of 62.

Return on shareholder equity is determined by dividing 2012 net income by the average of 2011 and 2012 shareholder equity.

For the purposes of calculating return on shareholder equity, net income is defined as available for common shareholders, or net income from continuing operations before extraordinary or nonrecurring items as filed on the company’s income statement. If a company includes special charges — such as merger costs — in its pretax figures, the numbers will not be considered extraordinary and will be included in available for common. (This occurs most often in a pooling of interests.)

Revenue for banks is calculated by adding net interest income after loan-loss provisions to total noninterest income.

Profit is calculated as net income from operations after extraordinary or nonrecurring items, as filed on the company’s income statement.

Profit margin is determined by dividing profit by revenue. The one-year change in profit margin is calculated by computing the percentage change in profit margin between 2011 and 2012.

Stock prices in all tables and stories have been adjusted for splits.

To be considered for the Growth 50 chart, published online at www.bostonglobe.com/globe100, a company must be based in Massachusetts and have been public in both 2011 and 2012. Companies are ranked by a composite score of two-year average annual sales and profit growth rates.

The same criteria are used to rank the top performers among public companies that are based outside Massachusetts, but are among the state’s 200 largest employers.

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