Hong Kong Interbank Offered Rates - the rates at which banks in Hong Kong lend to each other - are soaring, especially at the short end of the curve.
Rising credit risk could be related to Hong Kong banks' exposure to the crisis-hit Chinese property sector.
It could also be related to the mounting downward pressure on the Chinese yuan.
On the yen, Japan's Ministry of Finance confirmed that it spent $43 billion on FX market intervention over two days in October, which follows $20 billion spent on Sept. 22 trying to contain the currency's slide.
In sum: $63 billion spent, in three days, with the respective dollar/yen trigger points apparently around 146.00, 152.00, and 149.50.