Aswath Damodaran: The 3 Sins Of Data Analysis
The Acquirer's Multiple2023-01-27T13:05:27-05:00
During his recent Data Update 1 for 2023, Aswath Damodaran discusses the 3 sins of data analysis. Here’s an excerpt from the update:
Q4 2022 hedge fund letters, conferences and more

As I noted in my posts on data disclosure last year, this has led to at least three unhealthy developments.
- Data distractions: Faced with massive amounts of data, quantitative as well as qualitative, many investors and analysts find themselves distracted by immaterial, irrelevant and sometimes misleading data points along the way.
- Data as a crutch: At the other extreme, there are some who believe that the answer to every question lies in the data, and that when seeking an input for valuation and corporate financial analysis, the data will provide it. Rather than make their best judgments or reason their way, when faced with estimation challenges, these investors and analysts embark on a search for more data, and if they do not find that data, they give up.
- Data bias: There is the canard that data is objective, as opposed to estimates or judgments, which are considered subjective. That is not true! In my experience, data is malleable, and if there is enough of it at your disposal, you can screen it and selectively choose the data to support whatever viewpoint you want to advance.
During the course of my corporate finance and valuation journey, I have been guilty of all three of these sins.
You can read the entire data update here:
Data Update 1 for 2023
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The Acquirer's Multiple
The Acquirer’s Multiple® is the valuation ratio used to find attractive takeover candidates.
It examines several financial statement items that other multiples like the price-to-earnings ratio do not, including debt, preferred stock, and minority interests; and interest, tax, depreciation, amortization.
The Acquirer’s Multiple® is calculated as follows:
Enterprise Value / Operating Earnings*
It is based on the investment strategy described in the book Deep Value: Why Activist Investors and Other Contrarians Battle for Control of Losing Corporations, written by Tobias Carlisle, founder of acquirersmultiple.com.
The Acquirer’s Multiple® differs from The Magic Formula® Earnings Yield because The Acquirer’s Multiple® uses operating earnings in place of EBIT.
Operating earnings is constructed from the top of the income statement down, where EBIT is constructed from the bottom up. Calculating operating earnings from the top down standardizes the metric, making a comparison across companies, industries and sectors possible, and, by excluding special items–earnings that a company does not expect to recur in future years–ensures that these earnings are related only to operations.
Similarly, The Acquirer’s Multiple® differs from the ordinary enterprise multiple because it uses operating earnings in place of EBITDA, which is also constructed from the bottom up.
Tobias Carlisle is also the Chief Investment Officer of Carbon Beach Asset Management LLC.
He's best known as the author of the well regarded Deep Value website Greenbackd, the book Deep Value: Why Activists Investors and Other Contrarians Battle for Control of Losing Corporations (2014, Wiley Finance), and Quantitative Value: A Practitioner’s Guide to Automating Intelligent Investment and Eliminating Behavioral Errors (2012, Wiley Finance). He has extensive experience in investment management, business valuation, public company corporate governance, and corporate law.
Articles written for Seeking Alpha are provided by the team of analysts at acquirersmultiple.com, home of The Acquirer's Multiple Deep Value Stock Screener.
All metrics use trailing twelve month or most recent quarter data.
* The screener uses the CRSP/Compustat merged database “OIADP” line item defined as “Operating Income After Depreciation.”