Market Overview

The Shanghai Composite index closed at 4,092.76, a decline of 0.37 %, trading volume of 1,003.8 billion CNY. The Shenzhen Component index finished at 15,970.86, up 0.57 % on a volume of 1,132.7 billion CNY. The ChiNext index finished at 4,224.96, rising 1.39 % with 558.3 billion CNY of trading.

Sector‑level performance was uneven. Non‑metallic materials, semiconductors, chemical pharmaceuticals, cultivated‑diamond, CRO, and high‑speed copper cable segments led the gains, while insurance, airport transport, precious metals, coal, phosphorus chemistry, and electronic paper sectors saw the largest declines.

Key Drivers

1. Hardware and Semiconductor Strength

  • Computing‑hardware theme: The market displayed a pronounced rally in computing‑hardware related stocks, with significant moves in CPO, PCB, and related concept shares.
  • Semiconductor supply chain: Shares of semiconductor‑related companies, including Xingsheng Shares and Yutai Micro, recorded limit‑up gains.
  • High‑performance materials: The cultivated‑diamond sector continued to climb, led by Huanghe Xunfeng and Boyun New Materials (BOYUN), both of which hit the limit‑up price on the trading day.

2. Aviation and Space

  • The China Aerospace ETF (159227), which tracks the aerospace index, advanced 0.79 % and maintained its position as the largest ETF in its category.
  • Boyun New Materials participated in the ETF’s top‑performing constituents, benefitting from the broader aerospace rally.
  • Recent launch activity—including seven successful launches of domestic rockets—reinforced investor confidence in the space industry.

3. Policy and Market Expansion

  • The State Development and Reform Commission highlighted the rapid build‑up of an integrated computing network, emphasizing market forces as decisive.
  • The Shanghai Clearing House and China Foreign Exchange Trading Centre announced an optimized foreign‑currency repo service starting 22 June, potentially easing liquidity conditions for overseas trade.
  • China Mobile’s completion of the 6G standard research project underscores the national commitment to next‑generation communication technologies, likely to support high‑tech sectors.

Company‑Specific Impact – BOYUN

  • Sector Alignment: BOYUN’s core products—powder‑metallurgy friction materials, carbon and carbon‑composite materials, nanomaterials, and related equipment—are integral to high‑performance aerospace and defense applications.
  • Price Momentum: The stock achieved a limit‑up on 18 June, contributing to the cultivated‑diamond sector’s overall upward trend.
  • Valuation Context: With a price‑earnings ratio of 66.39 and a market cap of 12.86 billion CNY, BOYUN trades at a premium relative to industry averages, reflecting expectations of continued growth in aerospace‑related demand.
  • Recent Performance: The share price closed at 23.90 CNY on 15 June, a level below its 52‑week high of 29.24 (recorded on 24 May) and above its 52‑week low of 7.21 (recorded on 19 June 2025).

Outlook

Short‑term: The positive momentum in high‑technology materials and the aerospace sector may sustain further upside for BOYUN, provided that supply chains remain robust and policy support continues.

Long‑term: Continued investment in space launch vehicles, satellite constellations, and advanced materials positions BOYUN to benefit from the broader “commercial‑space” trend identified by market analysts.