Do 00878 and 00919 Overlap? 8 of Their Top 10 Are the Same — NT$58,000 of Every NT$100,000 in the Same Companies

Data as of: holdings for 2026-10-27. 00878 from Cathay SITE’s official weight data, cross-checked with ETF Info and MoneyDJ; 00919 from Capital Investment Trust’s portfolio page. Holdings change daily; check the issuers’ websites before trading.

This short had 100,000 Facebook plays. 00878 plus 00919 is a very common combination, and the idea is intuitive: stagger the distributions and money comes in more often.

The conclusion in three sentences:

• 8 of the top 10 are the same: CTBC Financial, Quanta, Cathay Financial, ASUS, Evergreen, Taishin Shin Kong Financial, Realtek and Fubon Financial.
• Same companies, different amounts: Fubon Financial is about 3% of 00878 but over 15% of 00919.
• Put NT$50,000 in each and about NT$58,000 sits in these 8 shared companies. Distributions are staggered; risk isn’t.

Where I stand: I don’t own 00878 or 00919. My core holdings are 0050, the S&P 500 and QQQ. I’m laying out the two ETFs’ holdings as an outsider.

Why do people buy both?

Because their distribution months don’t overlap:

Together, money comes in 8 months a year. Wanting staggered payouts is a perfectly reasonable goal.

Top 10 compared: 8 are the same

Looking only at the overlap between each ETF’s own top 10, these 8 appear in both:

Two observations:

1. CTBC Financial, ASUS, Evergreen and Realtek have almost identical weights in both.
2. Financials differ the most. Fubon, Cathay and Taishin Shin Kong each weigh more than twice as much in 00919 as in 00878. In 00919, just these 4 financials — CTBC, Cathay, Taishin Shin Kong and Fubon — make up about 47% of net assets.

NT$100,000 example: about NT$58,000 in these 8

Assume you hold only these two, NT$50,000 each (ignoring premiums/discounts, trading costs and later changes):

• 00878: 50,000 × 46.04% = NT$23,020
• 00919: 50,000 × 70.64% = NT$35,320
• Total: NT$58,340, about NT$58,000

In other words, nearly 60% of your NT$100,000 sits in the same 8 companies.

This is “the combined exposure of both positions to these 8 companies,” not the overall overlap of the two ETFs. Shared holdings outside the top 10 aren’t counted, so actual overlap can only be higher, not lower.

For comparison: in the 00929 plus 00918 pair I analyzed, only 2 of the top 10 overlap, with about 24% overall weight overlap. 00878 plus 00919 overlaps much more.

So when one of these companies falls…

Both ETFs are affected. Of course weights differ, so they won’t move identically — for example, when financials pull back, 00919 usually takes a bigger hit than 00878.

But the point is: you think you’re diversifying with two ETFs, but most of the money is on the same group of companies.

Is the pair worth it? My view

Buying both isn’t a problem. Some people simply want staggered payouts; that’s a legitimate cash-flow need.

Just remember: staggered distribution dates don’t mean staggered risk.

To check whether you’ve bought too much overlap:

1. Look at the top 10 — how many are the same
2. Then the weights — how much the same company is in each
3. Finally, other holdings and sector weights, especially financials and electronics

FAQ

The short video

Further reading

Lazy conclusion

懶大

金融科技新創 CEO | 獨立財務顧問

1. 8 of the top 10 are the same: CTBC, Quanta, Cathay, ASUS, Evergreen, Taishin Shin Kong, Realtek, Fubon
2. The weights differ in financials: Fubon is about 3% of 00878 vs over 15% of 00919
3. NT$50,000 in each: about NT$58,000 sits in the 8 shared companies
4. Buying both is fine, but staggered distributions don’t mean staggered risk
5. Check it yourself: top 10 → weights → other holdings and sectors

Getting paid every month is fine — just don’t count it as diversification.

📩

訂閱電子報，獲取更多理財觀點

立即訂閱

🔒 免費訂閱，隨時可退訂

Sources

• 00878: Cathay SITE official weight data (2026-10-27); cross-checked with ETF Info and MoneyDJ
• 00919: Capital Investment Trust portfolio page (2026-10-27); ETF Info snapshot
• Ex-dividend months: based on both issuers’ historical notices; rely on actual notices
• Math: 50,000 × 46.04% + 50,000 × 70.64% = 58,340

This post compiles holdings data and example math. It is not investment advice. Holdings change daily; check the issuers’ websites.