Investment
Calculator

CMCSA

Class A Common Stock

I invested			on
		Reinvest Dividends:			Submit

Calculate Current Value and Shares Since: August 9, 1983
Investment Date	Original Shares	Original Value	Current Shares	Current Value	Percent Return
08/09/83	45	$ 1,000.00	3,077	$ 53,933.10	5,293.31%

Investment of $ 1,000.00 on 08/09/83 would yield $ 53,933.10 today

CMCSK

Class A Special Common Stock

I invested			on
		Reinvest Dividends:			Submit

Calculate Current Value and Shares Since: December 24, 1986
Investment Date	Original Shares	Original Value	Current Shares	Current Value	Percent Return
12/24/86	56	$ 1,000.00	638	$ 10,690.98	969.10%

Investment of $ 1,000.00 on 12/24/86 would yield $ 10,690.98 today

Disclaimer

The Investment Calculator page and related information is provided by Mergent, a third party service. Comcast does not maintain this page and is not responsible for the accuracy, completeness or timeliness of the information. The results are for illustrative purposes only and should not be relied on for investment purposes. The timing and price of dividend reinvestments, taxes, commissions and other factors may affect the values shown. Please note that historical investment performance is not intended to indicate future performance.