I guess I sort of just beat you up without offering much.
Bruce Greenwald says you need 3-4 things to properly invest. I tend to agree with him.
An Investment Framework / Allocation Plan.
A Search Strategy.
A valuation Engine / Template for reviewing investments.
I recommend coming up with these 3-4 things for yourself. I have pieced together info for each of the items listed above and try to invest within that model.
In terms of the valuation engine, You should probably develop a checklist / framework. I have stolen Buffetts and added quite a bit to it. I think about it and have things mapped out before investing but, hardly ever write things up until long after the fact. Mohnish has a fairly detailed checklist, and I believe Parsad said he doesnt use a checklist (I am guessing he has a model in his mind or on paper though). You have to find something that works for you.
Here are 4 questions you should always answer for an Investment. Dont thank me, thank Buffett. I tend to steal vs. Innovating. I added one filter which was stolen from someone else. There are a few other things I look at - ratios, analytics, some qualitative questions, a basic model - but this is the main driver of whether I invest or not.
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Buffet's 4 Filters Plus 1
We make quick decisions because we have filters before we get to the point of making a decision.
Filter #1 Can we understand the business?
Note - Warren Buffet, "To understand a company is to understand its products, its competition, and its earning power." Do you know what drives cash flow and is it sustainable? Do you understand what factors drive the stock price & the firm's bottom line in both the short and long term? What will it look like in 10-20 years?
Filter #2 Does the business have a durable competitive advantage?
This is why I wont buy into a hula-hoop, pet rock, or a Rubiks cube company. I will buy soft drinks and chewing gum. This is why I bought Gillette and Coke.
Since 1972 we have made no change in the marketing, process etc. Take Sees candy. You cannot destroy the brand of Sees candy. Only Sees can do that. You have to look at the brand as a promise to the customer that we are going to offer the quality and service that is expected. We link the product with happiness. You dont see Sees candy sponsoring the local funeral home. We are at the Thanksgiving Day Parades though.
Filter #3 Does it have management I can trust?
Note -Bruce Berkowitz, Has management been tested by rough business cycles and are they rational owner-managers with skin in the game. Does management over deliver or over promise? Is management significantly selling shares or diluting ownership through aggressive stock options? What does management plan to do with FCF?
Also check the proxy to see how Management is compensated, does the plan make sense?
Note - You own this business but, do not control it so make sure that Management is smart and focused on its owners. It helps if Management owns a lot of stock because they will then have similar interests as you. Make sure Management is properly allocating FCF and responsibly managing the business. Also ensure that Management understands ROIC.
Filter #4 Does the price make sense?
Note - Warren E Buffett "If you understood a business perfectly and the future of the business, you would need very little in the way of a margin of safety. So, the more vulnerable the business is, assuming you still want to invest in it, the larger margin of safety you'd need. If you're driving a truck across a bridge that says it holds 10,000 pounds and you've got a 9,800 pound vehicle, if the bridge is 6 inches above the crevice it covers, you may feel okay, but if it's over the Grand Canyon, you may feel you want a little larger margin of safety
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No Growth Valuation - Monish Pabrai regarding FCF calculation. "There is no need for Excel. If a business has zero growth and consistent stable cash flow, that business is worth 10x FCF plus any excess capital." This assumes approximately a 10% discount rate and results in a 10% free cash yield.
Conservative Growth Valuation - Monish Pabrai regarding FCF calculation. If there is growth, depending on how much and how consistent, Id be willing to value it at 12-15x plus excess cash.
Filter #5 What did I miss, Why is this so cheap?
Did you browse the 10k, read the 10k notes, and read the proxy for compensation info?
An additional filter based on Li Lu's lecture at Columbia business school. Also covers Munger's Invert Invert Invert.
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Major Holders and Insider Ownership -
http://finance.yahoo.com/q/mh?s=MDT+Major+HoldersWarren Buffet - A public-opinion poll is no substitute for thought. With that said, I like when people who are much smarter then me are buying.
I always review the presentation - Its like a cliff notes for the investment.
http://phx.corporate-ir.net/External.File?item=UGFyZW50SUQ9NjI1ODl8Q2hpbGRJRD0tMXxUeXBlPTM=&t=1After a 5 minute review, it appears to be a decent enough company. They make a few acquisitions, buy back stock, pay a decent dividend, and are in a great industry. The question is inmo will it give you the returns you want?