A-share Opening Express | The three major indices collectively opened low, and the concept of nuclear power bucked the trend and strengthened

Opening data

On August 3, the Shanghai Index opened 0.51% lower to 3812.61 points, the Shenzhen Index opened 0.60% lower to 13497.10 points, the GEM index opened 0.71% lower to 3320.09 points, and the Science and Innovation 50 opened 1.02% lower to 1619.29 points.

As of writing, a total of 2,148 companies in the two markets and the Beijing Stock Exchange had risen, 2,553 were down, and 834 were flat.

The increase was highest: nuclear power concept, nuclear fusion concept, fuel ethanol concept, environmental protection equipment, motors, power grid equipment, etc.; the decline was highest: electronics, coal, construction materials, petroleum and petrochemicals, communications, non-bank finance, etc.

Market conditions

On the first trading day of August, the three major A-share indices collectively opened lower, and market sentiment was cautious. Science and Innovation 50 opened more than 1% lower. Technology sectors such as electronics and communications continued to be weak, while sub-sectors such as semiconductors, components, and communication equipment had the highest declines, reflecting that the market is still digesting the traffic congestion on the technology circuit. Resource sectors such as coal, petroleum and petrochemicals are also under pressure, which is related to the recent decline in international oil prices and weakening domestic commodity demand expectations.

In terms of structural highlights, the launch of the nuclear power concept was active. Boosted by news that the National Standing Committee approved four nuclear power projects on July 31, with a total investment of over 170 billion yuan, the China Nuclear Industry Group concept and the nuclear fusion (artificial sun) concept registered the highest increase. Sectors such as environmental protection equipment and power grid equipment also have capital inflows, partly benefiting from new grid construction policy expectations. The number of companies that rose in the entire market accounted for about 38%, and only 9 individual stocks rose or closed. The overall profit effect was weak, and there was a strong sense of wait-and-see capital.

Overnight quick facts

The three major US stock indices closed higher on July 31, and Nvidia regained the top position in global market capitalization: on July 31, the three major US indices collectively closed higher. The Dow rose 0.53% to 52485.03 points, the S&P 500 rose 0.70% to 7489.72 points, and the NASDAQ rose 1.00% to 25373.85 points. The performance of technology stocks was divided: Nvidia rose nearly 3%, with a total market capitalization of 4.86 trillion US dollars to regain the top share market in the world; Apple fell more than 7% in a single day due to revenue guidelines falling short of expectations. The September contract for WTI crude oil closed up 1.29% to $84.67 per barrel.

The central bank set the tone for monetary policy to continue to be moderately loose in the second half of the year: On August 1, the central bank held a working meeting for the second half of 2026 to make it clear that it will continue to implement a moderately loose monetary policy, comprehensively apply and adjust monetary policy tools in a timely manner, maintain abundant liquidity, and keep the cost of comprehensive social financing at a low level. On the capital side, according to statistics from the Financial Association, the net inflow of stock ETFs in the entire market in July was about 477.8 billion yuan, a record high in a single month, and the intention to support long-term capital is obvious.

The National Standing Committee approved four major nuclear power projects, with a total investment of over 170 billion yuan: According to a news broadcast on July 31, the executive meeting of the State Council held that day decided to approve a total of 4 nuclear power projects: Zhuanghe Phase I, Zhejiang Jinqimen Phase II, Guangdong Taipingling Phase III, and Shandong Laiyang Phase I, for a total of 8 new units. According to estimates by Pengpai News, the total investment in these projects will exceed 170 billion yuan. The conference called for the construction and operation of nuclear power plants in accordance with the highest global safety standards to ensure the safety of nuclear power.

Trend analysis

Today, the three major A-share indices collectively opened lower. Science and Innovation 50 opened 1.02% lower, leading the decline in major indices, and continued adjustments in the direction of electronics, communications, and semiconductors. Although A-shares ended on a red market on July 31, they weakened when they opened this Monday, indicating that short-term long and short differences in the market are still prominent. The nuclear power concept benefited from the approval of the four major projects by the National Standing Committee as one of the few highlights of the opening, but the weight was limited, and the impact on the index was not obvious.

Institutional consensus is biased towards short-term markets or continuing the pattern of volatile consolidation and structural rebalance. Trading congestion in the technology sector has yet to fall back to a reasonable range. The intensive disclosure period in mid-late August may be a key observation window for a trend rebound. The central bank clearly continued its moderately loose monetary policy on August 1, compounding that the net inflow of ETFs reached a record peak in July. The underlying policy signal was clear, and there was room for further decline in the index or convergence. On the overseas side, US technology stocks rebounded on July 31, and Nvidia regained the top position in the global market capitalization. The yield on 10-year US bonds rose to 4.733%. External sentiment had a positive transmission to the A-share technology sector, but the strength of transmission was still constrained by differences in domestic chip structure and capital.