The Japanese government bond market has been cataclysmicly volatile in the last few days since the BoJ shifted from words to action - with an average daily range 8-times normal. But, as a rather famous rates desk trader recently noted, if there is a real "Japan Panic" trade, it will make itself evident at 1pm ET today. His reasoning is impeccable. The BoJ has embarked on a program where it will be buying 'more' long-maturity bonds than the government issues (at around $80bn equivalent per month, ad infinitum, in a nation, that we pointed out here [6], has a GDP that is 40% of the US.) This surge in liquidity, which as is well known across the G-7 is completely fungible (within and across all bank balance sheets), has to leak somewhere, and the 30Y US Treasury bond is now the highest-yielding 'safe asset'. However, the Fed is monetizing vast amounts of US Treasuries indirectly and so the only way for a large Japanese investor to buy enough to make a difference is at the auctions. And so, if the 30Y auction today prints with a large "negative tail" - inside of the WI - then it would go a long way to confirm the "Japan Panic" trade is on.
The 30Y Treasury has average a 0.74bps positive tail on average, we will be looking for a negative tail today...
[7]
For reference, 30Y Bid-to-Cover has been relatively stable since the crisis began...
[8]
as Japanese bond volatility explodes...last night was the biggest range in 5Y JGBs in almost 5 years
[9]
Charts: Bloomberg