Well, for the first time this week at least there are signs that their attempts are working. 10-year JGB yields have dropped from the implicit cap of 0.25% to just above 0.21% currently.

The BOJ is also offering to buy ¥500 billion in 5-10 year JGBs and also ¥50 billion in >25 year JGBs, all from 31 March.

JP10Y