China’s CSI 300 Completes 12 Week Losing Streak as Losses Reach $3.4T

China’s benchmark CSI 300 Index fell for a 12th consecutive week to complete the longest losing streak in its history, with Friday’s rout wiping out another $300 billion in market value and sending more than 4,900 mainland stocks lower. The Shanghai Composite dropped 1.44%, the Shenzhen Component slid 2.73% and the ChiNext plunged 4.13%, bringing total losses since the June peak to $3.4 trillion and leaving the CSI 300 down more than 20% in a bear market.

If this story plays out

−0.4%Impact on the S&P 500 across 4 scenarios (−2.7% to +2.2%)

Scenarios

Each figure is the modeled move of the S&P 500 if the outcome occurs. For information only. Not investment advice.

If this story plays out

Scenarios

Story, if it plays out

4 ways this could read

Possible futures, not reported news · chances and moves from Tilt’s model

35%+1.1%
Beijing Stabilization Package
Chinese authorities respond to the CSI 300 losing streak with coordinated verbal guidance, state-fund buying and targeted liquidity support. This is the most likely near-term path because Beijing has historically acted when equity weakness threatens consumer confidence, local-government financing and private-sector sentiment.
Finance +1.6% · Consumer Cyclicals +1.4% · Technology +1.0%
30%−1.0%
Managed Grind Lower
The selloff continues without a single systemic break, driven by redemptions, weak earnings revisions and lack of confidence in consumption. Beijing avoids an aggressive rescue, preferring incremental liquidity tools and pressure on institutions to maintain orderly trading.
Technology −1.3% · Consumer Cyclicals −1.1% · Non-Energy Materials −0.7%
20%−1.3%
Tech Decoupling Escalates
The equity rout becomes more closely tied to US-China technology restrictions after Washington advances limits on AI-related investment. Chinese semiconductor, cloud and internet platforms underperform, while global investors price a higher risk premium for technology supply chains.
Technology −2.2% · Industrials −0.5% · Finance −0.4%
15%−1.6%
Liquidity Stress Emerges
The prolonged selloff exposes leverage and liquidity problems among brokerages, structured products or wealth-management vehicles. This is less likely than policy support or an orderly decline, but the 12-week losing streak raises the risk of forced deleveraging.
Finance −2.5% · Technology −2.0% · Consumer Cyclicals −1.6%

Each figure is the modeled move of the S&P 500 if it happens. For information only. Not investment advice.

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