---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/41944619.md"
description: "Every industry has its cycles. When you can make money, work your hardest to maximize profits.During an economic downturn, protect your capital and don't invest blindly in $Invesco QQQ Trust(QQQ.US)"
datetime: "2026-06-17T07:14:28.000Z"
locales:
  - [en](https://longbridge.com/en/topics/41944619.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/41944619.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/41944619.md)
author: "[YANG HAI](https://longbridge.com/en/profiles/24344494.md)"
---

# Every industry has its cycles. When you can make m…


### Related Stocks

- [QQQ.US](https://longbridge.com/en/quote/QQQ.US.md)
- [SQQQ.US](https://longbridge.com/en/quote/SQQQ.US.md)
- [PSQ.US](https://longbridge.com/en/quote/PSQ.US.md)

## Comments (1)

- **hhj0755 · 2026-06-17T08:39:09.000Z**: Back in 2000, a whole bunch of people said the same thing.🤪