Thousands of AIs Use the Same "Cheat Code" to Trade Stocks: Your Account Is Being Harvested by Machines Collectively

English summary

### Thousands of AIs Use the Same "Cheat Code" to Trade Stocks: Your Account Is Being Harvested by Machines Collectively Time: 2026-08-01 10:55:16 Content: Have you ever felt an increasingly strong "market sense": current individual stocks seem to have lost their "temperament". Overlay the intraday charts of a dozen stocks in the same sector, and you'll find their ups and downs, volatility rhythms are almost identical. When the sector index moves, all individual stocks follow blindly. More bizarrely, the CSI 300, CSI 500, ChiNext Index, and SSE 50 have completely different constituents, yet their trends are like copies. This is not your illusion. This is the new normal in A-shares: triple resonance – individual stocks follow sectors, sectors follow indices, and indices follow indices. Who is manipulating all this? The answer points to two words: quantitative trading. Today, we are not discussing conspiracies, only dissecting the mechanism. Let's review the "mechanical synchronization" caused by code. 01 Bottom layer: thousands of AIs are doing the same test paper. In the current quantitative circle, there is an open secret: strategy homogenization. ...