ETF DNA 💰

What is ETF DNA?

ETF DNA compares US and Korean exchange-traded funds side by side — something that's normally scattered across broker apps, fund fact sheets, and exchange filings in two different languages. It pulls AUM, expense ratios, dividend yield/frequency, and top holdings into one directory so you can search, filter by exchange or asset class, and sort by size, cost, or yield.

Compare ETFs puts up to three funds side by side to spot overlapping holdings — useful for checking whether "diversified" ETFs you already own are secretly concentrated in the same handful of companies. Suggest by Style filters the dataset by investing style (income, growth, value, safety or higher risk) using simple rule-based logic over the curated data, not a black-box model. All Weather Portfolio builds an illustrative allocation based on Ray Dalio's well-known All Weather framework, mapped onto real ETF tickers.

Why overlap matters

Owning several ETFs feels diversified, but popular funds often hold the same large companies. An S&P 500 fund, a Nasdaq-100 fund and a US technology fund can share much of their top weight in a handful of names. Overlap shows how much of one fund's holdings also sit in another; a high number means the second fund adds less diversification than its name suggests. The comparison also lists duplicate and unique holdings and gives a plain-language high, medium or low similarity read.

Reading the numbers

• Expense ratio — the yearly fee as a percentage of what you invest. On 10,000,000 won, 0.03% is 3,000 won a year; 0.50% is 50,000 won.
• Dividend yield and frequency — a year of distributions divided by the price, and how often they're paid. You need to own the fund before the ex-dividend date to receive the next payment.
• AUM — assets under management, the total money in the fund. Larger funds usually trade more easily, with smaller gaps between buying and selling prices.

Data is sourced from public sources (SPDR/State Street factsheets for US ETFs, KRX/pykrx for Korean ETFs) and refreshed periodically as a snapshot — it is not live market data and nothing here is personalized investment advice. Every page shows the date of the snapshot.