---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/39429474.md"
description: "Marking this down.The US stock ETF account currently has a 9% position (reduced to 9% on 2026.2.6). As of 2026.3.22, the US stock valuation temperature has dropped to 52 degrees, only 2 degrees away from the buy-in level. If it falls to 50 degrees, theoretically, the position will be increased to 50% (1-50%). However, based on real-market verification over the past half year, the valuation temperature-position management method appears to be initially effective and has outperformed the S&P 500 index. Additionally, considering this correction is significantly affected by regional conflicts, I personally believe the main theme—the historical trend driven by the AI technology revolution—will not change, and I remain firmly bullish in the long term. Therefore, if the buying zone arrives (valuation temperature ≤ 50 degrees), the chip pool will be doubled. That is, a 50% position after doubling is equivalent to 100% of the original chip pool. In other words, the current holding market value will be increased by more than 10 times in one go.Whether the market will give an opportunity for this "big gamble" remains to be seen next week.$S&P 500(.SPX.US)$NASDAQ Composite Index(.IXIC.US)"
datetime: "2026-03-22T14:42:34.000Z"
locales:
  - [en](https://longbridge.com/en/topics/39429474.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/39429474.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/39429474.md)
author: "[长坡行者](https://longbridge.com/en/profiles/14120321.md)"
---

# Marking this down.The US stock ETF account current…


### Related Stocks

- [.IXIC.US](https://longbridge.com/en/quote/.IXIC.US.md)
- [.SPX.US](https://longbridge.com/en/quote/.SPX.US.md)
- [SPY.US](https://longbridge.com/en/quote/SPY.US.md)
- [VOOG.US](https://longbridge.com/en/quote/VOOG.US.md)

## Comments (4)

- **那个触摸一千万的孩子 · 2026-03-22T23:24:58.000Z**: During the trading session, at what time(s) to hit, and how many times to hit?
  - **长坡行者** (2026-03-22T23:45:39.000Z): After the post-market valuation temperature is locked below 50 degrees, directly buy the S&P 500 index in the A-share account, a one-time purchase. Buy more if it falls further.
- **money1129 · 2026-03-22T22:56:02.000Z**: Where did you see this market thermometer?
  - **长坡行者** (2026-03-22T23:13:54.000Z): There's a market down there.