Tuesday, September 30, 2014

Multiple Regression Against Various Multiples Using Different Selection Policies

Multiple Regression EV/EBITDA with various multiples:

Factors used: EV/EBITDA was regressed with Margin Leverage, Growth EBITDA,Growth Revenue, Return on Assets, Capex/CFO, EPS Growth, STD stock, Cash/Assets, VIX, S&P P/E, GDP. Sector wise accumulation.

How To Select Based On P Values?

There are various strategies to get the right result, which are discussed in other parts.A general algorithm or pseco code can be built up on that so that we select the best case. Some signs cannot be negative which we know by intuition and other have to have a good p value say around 30-40% and should not impact R-Sq-adjusted much. Keeping all these in mind we can have backward and forward selection.

Start:
Constrain on Sign – Select forward – Select Backward – Eliminate from residuals corr/ P Values/ General Correlations – Again Observe Rsq-adj for major change. Keeping don’t to get the best people.

Issues:

The sector shows peculiar behavior and the company might fall into different sectors where we cannot map each sector to the company.  The macro factor like GDP, VIX, S&P, and Unemployment seems to have less effect on the multiple which rallies due to its own reason. If we think that we can find directions than it again becomes tough for the reason  that when EBITDA falls EV also falls so ultimately what we  get is a proxy for growth or how much we think that the pricing of high will be in spite of low EBITDA.

On the other hand if we take intricate parameters than we get explanation of what each component brings in the valuations or the growth proxy. The basic notion should be that capex should drive growth up but there may be other factors explaining, example excess cash that will bring growth and returns down.

When we start creating excel we need to make sure most of the things that are simple and intuitive and hence the regression process should run in the most simple and automated way.

Another methodology suggests that we can take important factors from various elements like leverage, growth, profitability, macro and explain how each factor is contributing to the multiple. Again we are searching for a balance between the statistical results and the business acumen to get the best explanation on how the multiple is behaving and what would happen if we tweak any parameters for the business. We would take the system wide data in our model from each set of companies’ belonging to the same group. Creation of the group depends on the sector, growth phase, and other parameters.

For example if a company has a multiple of 12X then its multiple can be explained in terms of growth, profitability, return methodology, macro, risks (internal external). If the direction becomes irrelevant only then we should remove the factor from the respective group. A max and min could be put so that the explanation becomes better. If we look at it there are inherent risk and growth in companies of different size as well as different sectors. Directional analysis: beta, volatility, S&P risk etc should always reduce the multiple and not positive.
Pseduo code for performing the regression:
  • Select all parameters and group them into different heads.
  • Put a maz min of contributions you can take from each group.
  • Make a sign constraint on the factors.
  • Macro should be less than 25%.
While simulating this on excel, we have used Linest function but there are some issues like reversal of factors and other data handling things that makes it tough……………..

Free resources from Yahoo Finance.

over hundreds of factors? Which matters the most which matters the least, which factors have been used most of the times.

Intrinsic vs external factors and how to avoid patches of loop and make a scalable model in excel.
Pasting algorithms and calculating residuals is something which becomes imp, similarity and other check. How does bounding things to max or removing outliers work in robust regression in MATLAB? can the same be applied in VBA manually?

Why multiple analysis is imp? it tells u how the pricing works and which factor should be worked upon, leverage may play negative or positive factor, ideally it plays a negative as it increasing he risk, if stat tell the reverse do we a model that sits leverage increasing the returns?

Stat vs theory: many negative multiples what to do about htreml.

different companies and multiple of the S&P how and where they last?

Factors that can used and cautions [v4]

How to regress EV/EBITDA multiple?

For sectors where margin defines the valuation we might use margins, these sector are high margin sectors like internet, others where margins are high.
  • Gross Margin
  • EBITDA/Sales
Return method might affect the multiple depending on importance given by investors to the return quanta and methodology.
  • ROIC
  • EVA
  • ROE
  • Cash based margins can be used instead of normal margin things.
  • CFO/Sales
  • FCF/Sales
  • Dividend Payout Ratio
  • Div Yield
  • YoY DPS Growth
Growth is one thing that factors in the price in some sectors where growth sensitivities are having greater impact. Risk effects all sectors but different sectors have different beta based on how they would be performing to macroeconomics sensitives.
  • 1yr Beta.
  • 2yr Beta.
  • 5yr Beta.
  • 1yr Share Price Volatility.
  • 5yr Share Price Volatility.
  • VIX.
  • Debt/Total Capital.
  • Debt/Capital Debt (YoY Change).
  • Adj. Debt/Total Capital.
  • 10yr Treasury Yield.
  • 3mo LIBOR.
  • Real GDP Growth.
  • Unemployment Rate.
  • S&P 500 P/E.
  • Scale (log Sales, this is not a ratio).
  • Square elements that you think could be very sensitive.
  • Take log of elements you think can drag things around.
Careful on EV or EBITDA things as this might skew things: Debt/Total capital is less tricky to use than D/EBTIDA because D is on both numerator and denominator of D/Total cap where for D/EBTIDA has a debt portion if increasing causes multiple to go up.

Past year or next year? The data fetching is a problem here in terms of how the market would react and feedback mechanism.

IV Considerations:

Things that we give greater priority than R square:

  • R-square with spurious correlations. 
  • With negative coeff (not making sense). 
  • Where some elements explain all and very few left for others (client) {group vs client).

LTM is better option than 3 years. Values are at point in time; taking them average of quarters would create smoothing of data points?

We do a similarity check to remove companies that has data that creates trouble for us.

I think we use both the combined as well as the component versions? Between is the FGR definition the same as given above? Arithmetic average of (NTM rev growth, NTM ebitda growth, “long term” EPS growth), where the last is whatever the analyst’s report – typically 3y or 5y outlook.

10Y UST stands as the standard one, other options are 1 yrs 5 yrs and 30 yrs.

I guess we are using the change and not the absolute; change should be used not absolute as change is something that makes things move up and down. This notion is important because of the change in multiple could be due to lag or the expected growth in the future. That is the reason use NTM vs LTM. This can be understood as feedback or growth expectation driving the multiple. Similar analysis has been done in AR1.


Which part plays the biggest contribution on EV/EBITDA multiple in MLR?

Biggest contribution is of estimated growth; otherwise - acq  - biased - 2008 market acquisition.

Other than the companies internal numbers - if we take all factors than  S&P dries the multiple.

Is the history irrelevant?

What explains D/EBITDA?

If we use correlation analysis for point in time - as a supplement of our regression analysis then we might think that growth and sales should explain it.

Each sector has different dynamics to see the contrast we should look at following sectors - defense companies - mature - chg - mature - Biotech - research shoot up - biotech -
energy -  industrial EV/sales.


Intrinsic for MC sim
  • Sales
  • Multiple
  • Margin
  • EV-EBITDA

Market numbers:

  • Interest rate
  • S&P
  • Libor
  • Steepness






No comments:

Post a Comment