There's the holding period you'd tell someone at a dinner party, "I'm a long-term investor," and there's the holding period your actual account statement reveals, and for most people those two numbers are nowhere close to each other.
Talk is free. A brokerage statement isn't. It shows exactly how long you actually held things, not how long you meant to, and for a lot of people that gap is the most honest piece of self-knowledge available to them if they're willing to look at it.
What your statement actually says about you
Pull up your own transaction history sometime and just look at the average holding period, not the story you tell about yourself, the actual dates. If it's measured in months when you'd have said "years" out loud, that's not a paperwork issue, that's your revealed horizon, and it's the one that actually determined your results, not the claimed one.
Underwrite like the market might close
The frame I use is simple. Underwrite every purchase as if the market were going to shut down for the next five years the moment you bought it, no quotes, no ability to sell, nothing but the business itself doing its work in the background. Would you still be glad you own it? If the honest answer is no, that you were relying on being able to exit quickly if things got uncomfortable, you're not actually underwriting it as an owner.
Owner or tenant, pick one
A tenant treats the place like it's temporary, no reason to fix the fence, no reason to plant a tree that takes ten years to mature. An owner treats it entirely differently, because they're going to be there for whatever comes next either way. The stock market lets you flip between those two identities in a single click, which is exactly why most people default to tenant behavior without ever deciding to.
“Our favorite holding period is forever.”· Berkshire Hathaway shareholder letter, 1988
- Your claimed horizon is what you say. Your revealed horizon is what your statement shows.
- Underwriting like an owner means being fine with the market closing for years the moment you buy.
- Most people default to tenant behavior without ever deciding to.
If there's one honest exercise in this whole subject, it's pulling your own statement and letting the dates argue with your self-image. Most people lose that argument. The ones who don't are the ones actually behaving like owners.