Switch to:
National Grid PLC (NYSE:NGG)
Return on Equity
21.75% (As of Mar. 2014)

Return on equity is calculated as net income divided by its average shareholder equity. National Grid PLC's annualized net income for the quarter that ended in Mar. 2014 was $4,134 Mil. National Grid PLC's average shareholder equity for the quarter that ended in Mar. 2014 was $19,006 Mil. Therefore, National Grid PLC's annualized return on equity (ROE) for the quarter that ended in Mar. 2014 was 21.75%.

NGG' s 10-Year Return on Equity Range
Min: -15.58   Max: 158.7
Current: 22.27

-15.58
158.7

During the past 13 years, National Grid PLC's highest Return on Equity (ROE) was 158.70%. The lowest was -15.58%. And the median was 24.31%.

NGG's Return on Equityis ranked higher than
97% of the 845 Companies
in the Global Utilities - Regulated Electric industry.

( Industry Median: 8.83 vs. NGG: 22.27 )

Definition

National Grid PLC's annualized Return on Equity (ROE) for the fiscal year that ended in Mar. 2014 is calculated as

ROE=Net Income (A: Mar. 2014 )/( (Total Equity (A: Mar. 2013 )+Total Equity (A: Mar. 2014 ))/ 2 )
=4147.40368509/( (15663.093415+19951.4237856)/ 2 )
=4147.40368509/17807.2586003
=23.29 %

National Grid PLC's annualized Return on Equity (ROE) for the quarter that ended in Mar. 2014 is calculated as

ROE=Net Income (Q: Mar. 2014 )/( (Total Equity (Q: Sep. 2013 )+Total Equity (Q: Mar. 2014 ))/ 2 )
=4134.00335008/( (18059.5813205+19951.4237856)/ 2 )
=4134.00335008/19005.502553
=21.75 %

* All numbers are in millions except for per share data and ratio. All numbers are in their own currency.

In the calculation of annual return on equity, the net income of the last fiscal year and the average total shareholder equity over the fiscal year are used. In calculating the quarterly data, the Net Income data used here is two times the semi-annual (Mar. 2014) net income data. Return on Equity is displayed in the 10-year financial page.


Explanation

Return on Equity (ROE) measures the rate of return on the ownership interest (shareholder's equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' equity (also known as net assets or assets minus liabilities). ROE shows how well a company uses investment funds to generate earnings growth. ROEs between 15% and 20% are considered desirable.

The factors that affect a company’s Return on Equity (ROE) can be illustrated with the Du Pont Formula:

Return on Equity (ROE)(Q: Mar. 2014 )
=Net Income/Average Shareholder Equity
=4134.00335008/19005.502553
=(Net Income / Revenue)*(Revenue / Average Total Assets)*(Average Total Assets / Average Equity)
=(4134.00335008 / 27095.4773869)*(27095.4773869 / 85604.5808754)*(85604.5808754 / 19005.502553)
=Net Profit Margin*Asset Turnover*Leverage Ratio
=15.26 %*0.3165*4.5042
=Return on Assets*Leverage Ratio
=4.83 %*4.5042
=21.75 %

Note: The Net Income data used here is two times the semi-annual (Mar. 2014) net income data. The Revenue data used here is two times the semi-annual (Mar. 2014) revenue data.

* All numbers are in millions except for per share data and ratio. All numbers are in their own currency.

With this breakdown, it is clear that if a company grows its Net Profit Margin, its Asset Turnover, or its Leverage, it can grow its return on equity.


Be Aware

Because a company can increase its return on equity by having more financial leverage, it is important to watch the leverage ratio when investing in high ROE companies. Like ROA, ROE is calculated with only 12 months data. Fluctuations in company’s earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.

Asset light businesses require very few assets to generate very high earnings. Their ROEs can be extremely high.


Related Terms

Return on Assets, Return on Tangible Equity, Return on Tangible Assets, Return on Capital, Return on Capital - Joel Greenblatt, Total Equity


Historical Data

* All numbers are in millions except for per share data and ratio. All numbers are in their own currency.

National Grid PLC Annual Data

Mar05Mar06Mar07Mar08Mar09Mar10Mar11Mar12Mar13Mar14
ROE 72.33155.4738.5767.1816.8834.6333.2322.0023.0923.29

National Grid PLC Semi-Annual Data

Sep09Mar10Sep10Mar11Sep11Mar12Sep12Mar13Sep13Mar14
ROE 40.6636.1827.7535.5317.9228.4322.9225.1823.7221.75
Get WordPress Plugins for easy affiliate links on Stock Tickers and Guru Names | Earn affiliate commissions by embedding GuruFocus Charts
GuruFocus Affiliate Program: Earn up to $400 per referral. ( Learn More)
Free 7-day Trial
FEEDBACK