Last I checked, which was near the time of the recent peak in the Shanghai Composite Index, International labeled the 2007 peak in Chinese stocks as wave III and the subsequent correction as wave IV of an impulse which began circa 1964 (based in part on estimates for the period prior to 1990). They labeled the recent rally as the wave (1) of the developing V.
Following that long-term count, and considering the actual wave development since 2007, I see something interesting, considering these two points:
Firstly, triangles typically yield a post-triangle thrust measurement which corresponds to the eventual extreme of the 3rd wave (or .786) of the thrust impulse. In the Shanghai "A" shares, the triangle, as labeled in my chart, yielded a thrust measurement which was quite consistent with the price action: it estimated a thrust height of 4569.128. The actual 3rd wave (by my count) reached 4791.534. Assuming that height as .786 of the total thrust would suggest a peak for the 5th wave of just slightly below where it actually peaked. The triangle parameters and thrust estimate derived therefrom and the actual thrust distance were mutually validating.
Secondly, a triangle always precedes the final wave of the same magnitude in any given wave structure, e.g. as a fourth wave prior to a fifth, as a B wave prior to a C, or as an E wave before a triangle thrust.
So, then, if this post-triangle thrust rally is the 5th wave (V), it appears to be done. The peculiar thing is that it did not exceed or even nearly match the height of the 2007 wave III .
I might kick myself for writing this if the Shanghai Index should suddenly launch up in a 3rd of 5th wave, and I suppose that in some cases the post-triangle thrust measurement might just reflect part of the wave, but I believe this is a strong enough case for the view that the 5th wave in Chinese stocks has possibly truncated (failed).
It would seem to go hand in hand with the declines that are happening across stock markets globally.