Cummins' stock price surges 4.9% this week, but earnings growth trails three-year returns.

Cummins' share price has risen 146% over the past three years, driven by a 41% gain in the last three months. Earnings per share growth was 13% per year, lower than the 35% average annual increase in the share price. Insiders have been buying shares, and dividends have boosted the total shareholder return to 164%. The company's fundamentals have contributed to the growth in shareholder returns.