Question regarding Beta.

Hi folks,

besides CAPM we can calculate Beta using the Gordon DDM.

The formula is: 

(Last Dividend * Dividend Growth Rate)/Share Price + Dividend Growth Rate

I get the first half of the formula. This would make a lot of sense. But I don't get why we simply add the Dividend Growth Rate in the end? I thaught we already factored this in. Why do we swing our hammer and bash it on there as well?

4 Comments
 
Most Helpful

The logic of the formula is to arrive at the discount rate at which all future dividends equal the stock price. The first instance of the dividend growth rate (multiplying it by the last dividend) is to calculate the next dividend, and the second instance of the growth rate is to account for all subsequent dividends.

You can think about it as rearranging the formula:

Stock price = next dividend / (discount rate - growth rate)

Which is equivalent to:

Stock price = (last dividend * (1 + growth rate)) / (discount rate - growth rate)

Where the discount rate = cost of equity

Also, note that this is calculating the cost of equity itself NOT the beta (which is a measure of volatility and one component of the cost of equity calculation using the CAPM.

 

Thank you man, very cool! One advanced question. I would be very interested in the actual derivation of our "magical" formula Present Value = (Cash)/(Discount Rate - Growth Rate)

Do you know where I can read about the derivation and why this equation holds?

 

Et autem qui fugiat sapiente nobis eum sint dicta. Ipsa facilis sit ea aut explicabo hic delectus. Necessitatibus et blanditiis quo et sit. Dolores quaerat dolore aut similique. Necessitatibus quia qui earum.

Voluptatem laboriosam hic quam soluta. Minima a aut odio quam reprehenderit amet architecto. Eius cumque voluptate deleniti soluta.

Pariatur tenetur et sunt. Et eum aut voluptatum unde exercitationem possimus sed.

Molestias ad et accusantium aut exercitationem reprehenderit est. Et in fugiat consequatur inventore et aut. Neque et sed qui sit nihil deleniti nihil.

Career Advancement Opportunities

September 2026 Investment Banking

  • Evercore 01 99.5%
  • Moelis & Company 01 98.9%
  • JPMorgan 01 98.4%
  • Morgan Stanley 07 97.9%
  • Goldman Sachs 02 97.4%

Overall Employee Satisfaction

September 2026 Investment Banking

  • Moelis & Company No 99.5%
  • Morgan Stanley 02 98.9%
  • Evercore 01 98.4%
  • Banco Santander 02 97.9%
  • BMO Capital Markets 12 97.4%

Professional Growth Opportunities

September 2026 Investment Banking

  • Evercore 01 99.5%
  • Moelis & Company 01 98.9%
  • Morgan Stanley 05 98.4%
  • Goldman Sachs 01 97.9%
  • JPMorgan No 97.4%

Total Avg Compensation

September 2026 Investment Banking

  • Vice President (16) $429
  • Associates (56) $261
  • 3rd+ Year Analyst (8) $210
  • 2nd Year Analyst (28) $184
  • Intern/Summer Associate (16) $161
  • 1st Year Analyst (84) $151
  • Intern/Summer Analyst (76) $101
notes
16 IB Interviews Notes

“... there’s no excuse to not take advantage of the resources out there available to you. Best value for your $ are the...”

Leaderboard

1
redever's picture
redever
99.2
2
BankonBanking's picture
BankonBanking
99.0
3
Secyh62's picture
Secyh62
99.0
4
kanon's picture
kanon
99.0
5
Betsy Massar's picture
Betsy Massar
98.9
6
CompBanker's picture
CompBanker
98.9
7
DrApeman's picture
DrApeman
98.9
8
dosk17's picture
dosk17
98.9
9
GameTheory's picture
GameTheory
98.9
10
numi's picture
numi
98.8
success
From 10 rejections to 1 dream investment banking internship

“... I believe it was the single biggest reason why I ended up with an offer...”