Own productive assets.
Then let time do the heavy lifting.
Long Horizon is an educational field guide for people who plan to buy US stocks — from the United States, Japan, or Korea — and hold them for a decade or three. No trading signals, no price targets. Just the principles, mechanics, account structures, and taxes that matter when your holding period is measured in decades.
Four pages, in this order
There are thirteen pages on this site and you do not need most of them today. If you are starting from nothing, read these four in order — about an hour in total — and skip the rest until a question sends you looking for it.
Everything else — Markets, AI & Stocks, Future, Crashes, Drawdown — is there for when you want it, not before.
Built for holders, not traders
Everything here assumes one thing about you: when you buy, you intend to still own it in ten years — through at least two or three bear markets you cannot predict. That single assumption changes almost every decision, and it is why most financial media is useless to you.
"Our favorite holding period is forever."
Principles
Why long horizons win: compounding arithmetic, time-in-market vs. timing, how risk actually behaves over decades, and the behavior gap that costs real investors more than any fee.
Read the principles →Markets
What a decades-long holder should know about the US, Japanese, and Korean markets: the major indexes, what has driven returns, currency effects, and the lessons each market teaches.
Explore the markets →Strategy
Turning principles into a plan: broad index funds, dollar-cost averaging, dividend growth, asset allocation by horizon, rebalancing, and the short list of mistakes that break 30-year plans.
Build the strategy →Where you live changes the plumbing, not the principle
A 25-year holder in Seoul, Tokyo, and Chicago can own the very same S&P 500 — but through different accounts, different tax rules, and a different currency lens. The strategy pages treat the principle as universal and the plumbing as local.
Home-market advantage
Tax-advantaged space through 401(k), IRA, and Roth accounts; low-cost index funds; long-term capital-gains rates that reward multi-year holding.
US accounts & tax →The NISA era
The 2024 NISA reform gives Japanese residents a large, permanently tax-free wrapper — a genuine gift to anyone compounding US index funds for decades.
Japan accounts & tax →서학개미, the long way
Korean investors have embraced US stocks. Understanding the 22% overseas capital-gains tax, dividend withholding, and pension accounts turns enthusiasm into a durable plan.
Korea accounts & tax →A reading path for your first hour
If you are new to investing
- Read Principles — especially the section on compounding and the behavior gap.
- Open the calculator and model your own monthly amount over 20–30 years.
- Read Strategy up to "Dollar-cost averaging".
- Follow your country's first-month checklist in Getting Started, using Accounts & Tax as the reference.
If you already invest
- Bookmark the Bear Market Survival page now, while you're calm — it's written for the day you'll need it.
- Review the common mistakes list against your current portfolio, and the Japan case study on Markets.
- Confirm you are using every tax-advantaged wrapper available to you in Accounts & Tax.
- Within ten years of spending the money? Start the Drawdown page early.