---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/42619864.md"
description: "I recently shared some compounding ideas, but this one is absurd. Which is exactly why people need to see the math.$10K into $NVIDIA(NVDA.US). $500/month. Set and forget.15 year result (using historical returns):• You contribute: $100K• Portfolio lands near: $1.98M• Compound's contribution: ~$1.88M20 years?$130K in → roughly $7.95M out.That is not day trading. That is not options. That is $500/month into one generational winner and refusing to stop.Past performance will not repeat perfectly.But compound math on the right stock is unlike anything a savings account can touch."
datetime: "2026-07-13T12:35:51.000Z"
locales:
  - [en](https://longbridge.com/en/topics/42619864.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/42619864.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/42619864.md)
author: "[First Fellow](https://longbridge.com/en/profiles/27399941.md)"
---

# I recently shared some compounding ideas, but this…


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## Comments (1)

- **蟹老板的交易员 · 2026-07-13T12:55:53.000Z**: So how many listed companies are there in the U.S. stock market? How do you choose?