A Seoul dispatch

Korean markets, memory stocks, and US dividends — written from the inside.

Sanghyun Lee is a Korean investor and father of three. These notes cover Samsung, SK Hynix, Micron, QQQI, the KOSPI, and the unglamorous tax reality of holding America from Seoul.

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How many QQQI shares for $500 a month?

A tax-aware dividend calculator with 15% US withholding as the default — the number Korean investors actually keep.

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Common questions

Why do Koreans invest in US stocks?
Many Korean households put a large share of capital into US equities because the KOSPI is concentrated in a handful of chaebol names, domestic real-estate locked up savings for a generation, and US markets offer broader sector exposure — especially in software and dividends. Read the note
How is US dividend tax withheld for Korean investors?
US-source dividends paid to Korean residents are typically subject to 15% withholding under the Korea–US tax treaty. Covered-call ETF distributions can mix ordinary dividends, section 1256, and return of capital. Read the note
What is a covered-call ETF like QQQI?
Funds such as QQQI, JEPI, and JEPQ sell call options against an equity book to generate monthly distributions. The yield looks high; the catch is that upside is capped and payouts vary every month. Read the note
Why do Samsung and SK Hynix move with Micron?
The three names sit on the same memory cycle. Micron reports in US hours; Samsung and SK Hynix often gap to that print when Korea opens. Read the note
Who writes Ground Truth Korea?
Sanghyun (Shawn) Lee — a Korean investor, father of three, and former project manager. He writes from Seoul in plain English. He is not a licensed advisor. Read the note