The first trading session of September saw China's three major A-share indices close lower with pronounced structural divergence. The Shanghai Composite Index fell 0.16% to 3,979.89 points, the Shenzhen Component Index dropped 1.02% to 13,872.4 points, and the ChiNext Index declined 1.32% to 3,393.43 points. Combined turnover across both markets reached approximately 2.05 trillion yuan, a contraction of about 93.5 billion yuan from the previous session's 2.15 trillion, though volumes have remained above the 2-trillion mark for multiple consecutive days with a marginal downward bias. Individual stocks showed relative vibrancy with 3,384 advancing against 2,035 declining, creating a market profile characterized by weak indices but broad stock participation. This session exemplified a classic divergence between heavyweight strength and growth weakness: the CSI 300 fell notably less than the ChiNext, and despite the Shanghai index's marginal decline, technology and growth sectors absorbed substantial selling pressure. The combination of falling indices with broadly rising stocks indicates that declines were concentrated in a few high-weight technology leaders while small and mid-cap thematic stocks generally recovered, representing a structural rebalancing session.

From a capital flow perspective, the market executed a clear "barbell-style" rebalancing. One end saw offensive event trading, led by agriculture (seeds and grains), pricing in global climate anomalies driving up agricultural product prices and rising inflation expectations. The other end featured defensive allocation, represented by banking and dividend plays, trading on low valuations, high yields, and earnings certainty. In between, sectors like retail trade and short-drama media continued emotional theme momentum. Capital outflows concentrated in technology hardware represented by electronics and STAR Market listings, reflecting a phase of risk appetite that is unfavorable to high-valuation growth chains—August's substantial technology gains had created elevated crowding, and without fresh catalysts, profit-taking intentions strengthened. In the near term, high-low switching and the barbell structure are likely to persist, with indices expected to maintain range-bound trading amid intensifying structural divergence. Medium-term attention remains on trading volumes, fundamental validation, policy implementation, and external variables including oil prices, geopolitics, and exchange rates. Overall, today's session represented a systematic rebalancing of "defense plus price increases" against "high-valuation growth" rather than a trend reversal, with structural opportunities remaining the market's defining characteristic.

Where the opportunities lie

The agricultural sector saw concentrated climate pricing repricing, with seed stocks leading the entire market. The Guotai Grain ETF (159033) rose over 6% today, while the Guotai Farming ETF (159865) gained more than 1.6%. The agricultural sector strengthened throughout the day, driven primarily by the planting chain (seeds and grains), with elasticity concentrated in market-oriented, price-sensitive varieties. Livestock and aquaculture followed with more modest gains, weaker than the planting segment. The sector's advance rested on multiple layered logics. The most direct catalyst came from intensifying super El Ni帽o pricing: relevant climate agencies upgraded the probability of a strong El Ni帽o in Q4 2026 to above 90%, and historical patterns suggest this tends to trigger imbalances between drought and flood in producing regions, lifting the production-loss premiums for crops like rubber, palm oil, sugar, and cotton. The planting chain has been defined as transitioning "from expectations to reality." September through November marks the critical planting period for South American soybeans, with market concerns over supply damage in the region heating up—domestic soybean meal supply depends on South American imports for approximately 70%, and corn and soybeans are market-priced varieties, making South American production-cut expectations easily transmitted to domestic markets through import costs. Previously, the market had not fully priced in El Ni帽o due to uncertainty about its intensity, but the recent probability upgrade triggered concentrated catch-up buying. This shift from disagreement to consensus in expectations was the direct emotional catalyst behind today's rapid advance in seed and planting stocks. Geopolitical and energy chain spillovers, combined with global inflation mapping, further reinforced the pricing-increase logic: geopolitical disruptions in relevant waters pushed up oil prices and shipping uncertainty, bio-energy pathways like vegetable oils and ethanol formed linkages with grain and oilseed prices, and Black Sea export disruptions strengthened risk premiums for wheat and other grains. International grain prices led the way, with import-dependent varieties transmitting more easily to domestic markets. Combined with August's Bloomberg Agriculture Spot Index posting its largest single-month gain in over a decade, the upside imagination space for domestic agricultural product prices has been opened. Meanwhile, after years of domestic grain price declines, both planting industry valuations and institutional positioning remain at historically low levels, with the "left-side to right-side" trading opportunity repeatedly cited. Post-interim-report improvements in gross margins at some companies and presale-related indicators also strengthened "peak-season sales" expectations, making agriculture a natural destination for returning capital during today's high-low switching. Additionally, under climate anomaly conditions, the market share logic for stress-resistant and high-quality varieties has gained greater traction, explaining why the density of limit-up moves in the seed direction significantly exceeded the industry average. Looking at internal structure, recent trends have been led by the planting chain: staple grains (rice and wheat) have limited price elasticity due to policy controls, while corn and soybeans are heavily influenced by international markets with clearer price-increase expectations and more prominent elasticity. The livestock logic operates on a longer cycle, with higher grain prices raising feed costs and accelerating capacity liquidation—a medium-to-long-term positive for the hog cycle, but a slow variable. On the policy front, food security and seed industry revitalization policies continue to intensify, providing directional guidance for the sector. Interested investors may watch the Guotai Grain ETF (159033) and Guotai Farming ETF (159865).

The financial sector strengthened against the market trend and outperformed the broader indices, exhibiting a layered combination of steady bank gains, broker elasticity, insurance follow-through, and active diversified finance. The Guotai Financial ETF (510230) rose over 1.8% today. Banks served as the core pillar, with multiple bank stocks hitting fresh stage highs during the session—the most important ballast supporting the Shanghai index's marginal decline while Shenzhen and ChiNext fell sharply. Bank strength rested on multiple converging logics. Fundamentally, after interim results were reported, large banks showed marginal improvements in revenue and profits, net interest margins stabilized, non-interest income and investment contributions improved, and dividend payout ratio increases strengthened the "dividend plus shareholder return" attribute, making them the preferred choice for allocation capital during index pressure. In valuation terms, even with risk appetite temporarily tilted toward technology, large banks retain low-allocation repair and broad-based index weight absorption attributes. Allocation-led moves tend to outperform relatively on "growth pullback days," and the valuation repair logic has not yet run its course. On policy, rural credit cooperative reforms are advancing regional bank consolidation themes, while the "sales system plus financial support" policy package for real estate has improved asset quality expectations, though subsequent data verification is still needed. In market structure terms, with the Shanghai index only marginally lower while Shenzhen and ChiNext fell significantly, the bank weight support effect was notably amplified, further strengthening allocation intentions. In today's barbell structure, banks played the defensive-end role, attracting allocation capital through low valuations, high dividends, and earnings certainty, offsetting the impact of technology hardware pullbacks on the Shanghai index. The non-bank direction was primarily elasticity-driven. Brokerages were driven by interim result realization, with proprietary trading and brokerage operations benefiting from H1's high turnover, making strong profit growth an event catalyst. On index adjustment days, low-position broker sentiment stocks instead gained room for catch-up plays and trading-volume speculation, showing prominent elasticity, though sustainability depends more on whether turnover recovers. Insurance leaned closer to the "dividend plus investment-side improvement" broader financial narrative with stronger follow-through characteristics. Diversified finance, fintech, and payment directions were also active, driven by "AI plus finance" policy catalysts combined with capital speculation, exhibiting greater volatility. Overall, the financial sector's current strength rests on the triple support of earnings, valuation, and policy, with bank sustainability relatively more solid while brokers and fintech depend more on sentiment and volume coordination. Interested investors may consider the Guotai Financial ETF (510230).

Bond market trends

The bond market achieved a "strong September opening" with repair momentum continuing. Treasury bond futures main contracts rose across the board with longer tenors performing relatively better. Yields on most major interbank government bonds declined, with the active 10-year government bond 260010 yield falling approximately 0.4bp to around 1.684%, while the 30-year also moved lower with 2600004 yield down about 1.15bp to approximately 2.169%. Market sentiment improved marginally, with today's session representing a repair of late-August adjustments. Reviewing August, rate bonds overall showed a pattern of "strength first, then consolidation, with a spike and pullback." In the first half of the month, supported by weak fundamental repair, soft financial data, and the ongoing "asset shortage" logic, allocation demand was strong, with the active 10-year yield briefly probing the 1.66% level. In the latter half, as long-side sentiment cooled, equity markets rebounded on volume, and expectations for fiscal expansion and accelerated bond supply grew, long-end yields recovered from lows, with the 10-year returning to a tug-of-war around the 1.68% to 1.70% threshold. The market shifted from one-way advance to high-level consolidation. The late-August pullback stemmed from two factors: first, yields had fallen too quickly earlier, accumulating substantial floating profits for funds and trading desks, raising profit-taking pressure; second, the market had already anticipated September's seasonal adjustments, with institutions preferring to wait for corrections before re-entering—this seasonal expectation profoundly influenced market behavior. Entering September, factors supporting repair have regained dominance. The funding side is core: post-month-end liquidity has re-loosened, with the central bank using a "7-day plus overnight" reverse repo combination to precisely nurture liquidity. Major funding rates like DR001 and DR007 have fallen below 1.4%, significantly alleviating earlier concerns about quarter-end funding conditions. Fundamentals continue their "weak repair" trajectory with limited disturbance to bonds: yesterday's August manufacturing PMI came in at 49.8%, up 0.6 percentage points from the prior month but still below the boom-bust line. Economic repair momentum remains limited overall, the necessity for aggressive stimulus is not high, and the fundamental logic underpinning the bond market has not reversed. However, it should be clear that the phase of rapid yield declines may have passed. On one hand, after the 10-year broke through 1.7% and rapidly fell to 1.66%, concerns about regulatory attention and profit-taking sentiment remain. On the other hand, September's government bond supply expansion, quarter-end assessments, and tax period factors may disturb funding conditions, constraining downside room for the short end. If growth-stabilizing policies are strengthened and equity market rebounds boost risk appetite, the bond market will still face adjustment pressure. Overall assessment: today's repair represents a dual repair of sentiment and risk-reward. While the medium-term tailwind environment has not reversed, the bond market will likely maintain high-level consolidation. In this context, investors could consider accumulating positions at appropriate pullback levels, with the Guotai 10-Year Treasury ETF (511260) and Guotai Treasury ETF (511010) worth watching.

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