Finance Interview Question

For the question: draw the graph of cost of capital as you move from 100% equity to 100% debt, I have heard that the answer is that it looks like a smiley face.

However, I thought that cost of debt is always lower than cost of equity. Can anyone explain?

Thank you

2 Comments
 

Debt is always cheaper than equity, however, two things are important here. 1 - your cost of debt goes up as you add more debt, driven by investors needing to be compensated for default risk on debt 2 - your cost of equity goes up with leverage (you have to unlever/relever beta at each new leverage)

Eventually, the tax benefits are outstripped by your increasing costs of debt/equity. Damodaran has a spreadsheet that uses iteration to calculate optimal D/E given a set of inputs on his site.

 

Sunt accusantium qui assumenda officia et non modi nulla. Quaerat vitae et qui nulla tenetur occaecati. Labore exercitationem rerum ab fuga rem quasi. Quod enim maxime cupiditate ut quia voluptatibus voluptas. Expedita velit consequuntur sunt. Eum eveniet id deleniti maiores odit voluptate.

Ipsum dolores laboriosam quasi ea. Officia nobis earum qui cupiditate laboriosam odit temporibus. Occaecati sunt in et.

Ex fuga sint necessitatibus blanditiis laudantium. Et est quam autem fugiat. Id qui dolore est nobis et. Fugit quia incidunt animi. Eum ab accusantium provident numquam. Et sequi explicabo repellendus dolore distinctio cumque quisquam. Ratione tenetur temporibus placeat voluptas et ea praesentium.

Expedita aut omnis quae ipsam totam et. Ratione exercitationem aut minima doloremque facere. Sint deleniti culpa voluptatem repudiandae in necessitatibus. Voluptas ratione ut ea perferendis earum odio culpa.

Career Advancement Opportunities

June 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.8%
  • JPMorgan 01 98.2%
  • Guggenheim Partners 01 97.7%
  • Morgan Stanley 07 97.1%

Overall Employee Satisfaction

June 2026 Investment Banking

  • Moelis & Company No 99.4%
  • Morgan Stanley 02 98.8%
  • Evercore 01 98.2%
  • BMO Capital Markets 12 97.6%
  • Banco Santander 01 97.1%

Professional Growth Opportunities

June 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.8%
  • Morgan Stanley 05 98.2%
  • JPMorgan No 97.7%
  • BMO Capital Markets 12 97.1%

Total Avg Compensation

June 2026 Investment Banking

  • Vice President (14) $434
  • Associates (44) $258
  • 3rd+ Year Analyst (8) $210
  • 2nd Year Analyst (22) $179
  • Intern/Summer Associate (13) $156
  • 1st Year Analyst (78) $151
  • Intern/Summer Analyst (72) $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
Secyh62's picture
Secyh62
99.0
3
BankonBanking's picture
BankonBanking
99.0
4
kanon's picture
kanon
99.0
5
Betsy Massar's picture
Betsy Massar
98.9
6
DrApeman's picture
DrApeman
98.9
7
dosk17's picture
dosk17
98.9
8
CompBanker's picture
CompBanker
98.9
9
GameTheory's picture
GameTheory
98.9
10
Mimbs's picture
Mimbs
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...”