Back in August, -7% of S&P downside originated "off hours", as evidenced by the three downside gaps (black rectangle). In January -5% of S&P downside originated "off hours", via three downside gaps as well...
At the beginning of each down wave, most of the S&P selling was taking place in other time zones...
S&P 500 with large (>20 points) up gaps (black) and down gaps (red):
Bloomberg: "Aussie is seen as a proxy for the Chinese economy..."
Aussie Dollar / JPY
Aussie is also a proxy for the S&P 500...
USD / JPY
I think we all see where I'm going with this...