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Get a cup of coffee.

In this thread, I'll help you understand why Warren Buffett's favorite holding period for stocks is forever.
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Imagine you just became the proud father of a beautiful baby boy.

You are beside yourself with joy. You feel blessed.

Congrats!
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The first thing you do, of course, is climb the nearest mountain.

From this lofty perch, you introduce the people to their future king.
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The second thing is: you give your son a financial headstart.

You open a new @RobinhoodApp account.

You put $100K in it.

The plan is: you'll manage this account for the next 30 years. On your son's 30'th birthday, you'll liquidate the account and give him the proceeds.
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Let's say you know a wonderful company -- with excellent long term prospects, a long runway for growth, and a management team you trust.

So you put the entire $100K into this company's stock, and hold it for the next 30 years.
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As expected, the company does well over these 30 years.

The stock follows suit. It gives you a 10% annualized return during this time.

So, how much will your Robinhood account be worth on your son's 30'th birthday?

That's easy: $100K*(1.1^30) -- or about $1.7M.
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But remember: your plan is to *liquidate* the account and give your son the *proceeds*.

When you do this, your son won't get the full $1.7M.

Why? Because taxes.

(You may be king of the jungle, but you're not exempt from paying taxes.)
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Let's say your tax rate is 20%.

After liquidating the account *and* paying taxes on the profits, how much money will your son actually end up getting?

That'll be about $1.4M, as this calculation shows:
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So, even though the *stock* returned 10% over 30 years, *your* effective after-tax return was only ~9.24% -- see pic below.

The difference is only ~0.76%, but that's ~$329K in dollar terms -- almost a quarter of what your son ended up getting.
10/

Now imagine an alternate universe.

In this universe, instead of keeping the $100K in 1 stock for 30 years, you do 2 stretches of 15 years each -- earning the same 10% annualized return throughout.

Pic:
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The only difference between these two universes is your holding period: 30 years in Universe 1 and 15 years in Universe 2.

The shorter holding period in Universe 2 makes you pay taxes twice -- but on smaller profits each time.
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The question is: in which universe will your son end up with more money?

As we've seen above, in Universe 1, your son ends up with ~$1.4M.

It turns out, in Universe 2, your son will only end up with ~$1.25M -- worse than Universe 1.

Calculations:
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Key lesson: If you hold stocks for shorter periods of time, you have to pay taxes more often, which will hurt your after-tax returns.

Extending the example above -- here's a table showing how much your son gets on this 30'th birthday for various holding periods you choose:
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And here's a plot of the *after-tax* money your son gets vs the *pre-tax* return provided by your stocks -- for various holding periods (H).

Again, you see: longer holding periods produce better results.

No wonder Warren Buffett's favorite holding period is forever!
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Longer holding periods work better because they take advantage of *deferred taxes*.

Taxes, of course, are a fact of life. You can't get away from them.

But the next best thing you can do is *defer* them.
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For example, suppose you invest $100K into a stock, and the stock doubles. Now your position is worth $200K.

But this $200K is not fully yours. The minute you try to cash it, the proverbial tax man will come knocking.
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At a 20% tax rate, the tax bill on your $100K profit will be $20K.

So, of the $200K in your brokerage account, only $180K is *truly* yours. You owe the remaining $20K to the government.

This $20K you owe is called a *deferred tax*.
18/

It's "deferred" because the $20K tax is *not* due right now. It comes due *only* when you sell your stock.

*Until* you sell, this $20K will remain invested in the stock -- right alongside the $180K of capital that's "truly" yours.
19/

This means, if you've chosen the stock well, this $20K will grow over time -- same as the other $180K.

In effect, this $20K is a loan from the government. You have it invested in a stock. And you can leave it there -- growing -- for as long as you like before repaying it.
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Part of the growth will be yours to keep. The rest will have to be paid back to the government -- but only at a time of *your* choosing.

Thus, deferred taxes have a "float-like" aspect. And we all know how much Buffett loves float!
21/

The "float power" of deferred taxes works best when you hold stocks forever.

For example, Buffett bought Coca-Cola in 1988. As the stock rose, he's racked up billions in deferred taxes. But he's yet to pay a single cent -- because he hasn't sold a single share of Coca-Cola.
22/

Another reason to prefer long holding periods: good investment ideas are hard to come by.

If you hold a stock for 1 year and then sell, what will you do with the money? You need another stock idea to put it into.
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And these stock ideas not only have to keep coming; they must also be really good.

For example, with a 1 year holding period at a 20% tax rate, you have to generate 18.75% pre-tax to get 15% after tax.

You're not just on a treadmill. The treadmill itself is on an incline.
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But if you hold on to stocks for a long time, you don't need very many investment ideas.

You can go for quality over quantity. You can improve your odds of success by researching a few ideas really deeply, and being very selective about what you invest in.
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So, what kind of ideas make the cut?

Well, to hold a stock for a long time, we should first make sure the company will continue to *exist* for that long.

That is, the company must enjoy some kind of protection against competitors -- what Buffett calls a "moat".
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It also helps if the company has lots of reinvestment opportunities.

That is, the company should be able to repeatedly reinvest its earnings back into its own business -- to grow these very earnings, at high rates of return (ROIIC), for a long time to come.
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These are the companies that have the power to grow your money year after year -- for a "snowball effect" over long holding periods.
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I want to stress: "long holding period" does not mean "never sell".

For example, if you come across new information and realize that you made a mistake investing in a stock, it's perfectly OK to sell.

Forever is Buffett's *favorite* holding period, not his *only* one.
29/

This investing style -- holding stocks for a long time -- also goes by "Coffee Can Investing".

Contrast this to "Cigar Butt Investing" -- repeatedly buying stocks cheap and flipping them quickly for fair value.

Now you know why I say get a cup of coffee, not a cigar!
30/

That's all, folks!

Thanks for reading. Have a great weekend!

/End
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