The Bank of Japan has now released the outline of its JGB plans 29 July

Says the BOJ:

The Bank of Japan decided to conduct the outright purchases of Japanese government bonds as follows, effective from August 1, 2016. The next announcement will be on August 31, 2016 at 5 p.m. 1.

  • Amount to be Purchased Approximately 8-12 trillion yen per month in principle. The Bank takes account of market conditions and conducts purchases in a flexible manner in order to ensure that the effects of monetary policy permeate the economy.
  • 2. Bonds to be Purchased - Japanese government bonds with coupons (2-year bonds, 5-year bonds, 10-year bonds, 20-year bonds, 30-year bonds, 40-year bonds, floating-rate bonds, and inflation-indexed bonds).
  • 3. Amounts to be Purchased from Specific Brackets Classified by Bond Type and Residual Maturity Stated in the attachment. 4. Frequency of Purchases Approximately 8-10 times (business days) per month. The Bank may increase it as needed.

Full statement here