Maybe they would enforce a halt for some days due to fake cyber attacks? Big funds already can't sell, right? Last possibility would be the japanese model of, what You said, at least partially nationalizing it buy continually buying via hidden accounts.

No. That's why I think they're just jawboning. What if it doesn't work, though?

siggy47

Do You really think they would go so far and nationalize the market? This would destroy confidence of their ''partners'' like Russia and the others, too. Mmh. 

TomK

econ

China: further attempts to stop the stock market crash

I guess they're trying to jawbone some stability by threatening to completely nationalize the stock market. If they actually do it, even the dumbest investors will finally bail. It still amazes me to hear MSM stockpickers shilling Chinese securities.