---
title: "The A-share broad-based index has synchronized its pullback, with consistent performance across the A series broad-based indices, as funds counter-trend allocate to the A500ETF"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/280643221.md"
description: "On March 26, the A-share market experienced overall fluctuations and a downward trend, with the A-series broad-based indices adjusting simultaneously. The CSI A500, A100, and A50 indices all fell by 1.4%. In terms of valuation, the rolling price-to-earnings ratio of the CSI A500 index is 16.8 times, A100 is 17.0 times, and A50 is 17.5 times. Despite the market downturn, the A500 ETF saw a net subscription of nearly 100 million shares throughout the day. China Merchants Securities believes that the current A-share market is in the latter half of the decline, with limited room for further significant drops, but external shocks may trigger volatility. Risk warning: Investment should be approached with caution"
datetime: "2026-03-26T13:39:13.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/280643221.md)
  - [en](https://longbridge.com/en/news/280643221.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/280643221.md)
---

# The A-share broad-based index has synchronized its pullback, with consistent performance across the A series broad-based indices, as funds counter-trend allocate to the A500ETF

On March 26, the A-share market experienced an overall downward fluctuation, with the "A Series" broad-based indices representing different market capitalization leaders adjusting simultaneously: by the close, the CSI A500 Index, CSI A100 Index, and CSI A50 Index all fell by 1.4%, showing a high degree of correlation among the three broad-based indices.

From the perspective of index characteristics and valuations (data source: Wind, as of March 25, 2026):

CSI A500 Index: rolling price-to-earnings ratio of 16.8 times, with a valuation percentile of 72.0% since its release in 2004, covering 89 sub-industries;

CSI A100 Index: rolling price-to-earnings ratio of 17.0 times, with a valuation percentile of 82.4% since its release in 2006, focusing on core large-cap leaders;

CSI A50 Index: rolling price-to-earnings ratio of 17.5 times, released in January 2024, covering 50 industries, with a prominent style of ultra-large-cap leaders.

From a funding perspective, the A500 ETF managed by E Fund (159361), which tracks the CSI A500 Index, saw a net subscription of nearly 100 million shares throughout the day. All "A Series" broad-based ETFs under E Fund are low-fee varieties.

CITIC Securities believes that, overall, the current A-share market is in the latter half of this round of decline from a technical pattern and sentiment indicator perspective, with limited room for further significant declines; however, external shocks may still trigger phase fluctuations, and the confirmation of the bottom range will require time to create space.

Risk warning: Funds carry risks, and investment should be approached with caution

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