Hello! I’m a 50‑year‑old unemployed woman investor in Korea. Today I want to share a cute episode about my precious money going on a “group part‑time job.” When the stock market feels unstable, I don’t want my cash to just sit idle. So I chose RP (Repurchase Agreement, a short‑term bond‑like product) — and here’s the story of how my 5 million won “big brother” and 100,000 won “little baby” entered the RP kindergarten.
1. “Even with money, I can’t buy?” — The wall of quota limits
I tried to buy 2.4% RP to make my CMA cash work harder, but the system kept saying: “You exceeded today’s quota.” It turned out the brokerage had already sold out its RP supply for the day. So I lowered the amount step by step until I finally grabbed the leftover quota.
2. Big Brother’s 0.05% Mission
Compared to CMA’s 2.35%, the RP contract rate was 2.4% — just 0.05% higher. Some might say, “Why bother for such a tiny difference?” but for investors, details are pride! So my 5 million won “big brother” marched off to the vault for 16 days.


Interest calculation:
- Gross ≈ 5,268 KRW
- Net after tax ≈ 4,460 KRW
3. “Me too!” — The Little Baby’s Cute Journey
My 100,000 won “little baby” insisted on joining. So I gave him the same 2.4% badge and sent him to guard the vault for 16 days.
Interest calculation:
- Gross ≈ 105 KRW
- Net after tax ≈ 89 KRW
Just enough for a candy! I imagine him holding a tiny shield, sucking on a lollipop while standing next to his big brother.


4. Investing Should Be Fun
Big brother might complain, “Why do I work hard while you spoil the baby?” But sending even small amounts with a name tag feels joyful. On January 21, both brothers will return with about 4,500 KRW — the price of a cup of coffee.

Bonus Episode: The RP Kindergarten’s picky rules
- 900 million won? Rejected.
- 600 million won? Rejected.
- Only 5 million won was accepted. It felt like negotiating with a strict kindergarten teacher! Luckily, the little baby passed easily.
Lesson of the day: Getting into RP kindergarten is all about timing.
