With higher than expected inflation revealed in the recent Consumers Price Index (CPI) as the catalyst, New Zealand wholesale interest rate markets are probably the most volatile they've been since 2009, Westpac senior market strategist Imre Speizer says.
As Speizer puts it, Statistics New Zealand's CPI release on October 18 "caused a kerfuffle in the market."
The CPI showed inflation rising to its highest level in more than 10 years, with the annual figure reaching 4.9% at the end of the September quarter. This was significantly higher than the 4.4% to 4.5% economists expected, and the 4.1% the Reserve Bank expected.
Off the back of this one-year and two-year NZ swap rates made their biggest one-day gains since the 1990s, rising 23 and 28 basis points respectively.
Now, market sources say that, as interest.co.nz noted late on Thursday, there's a shortage of receivers in the market who are necessary to make a deal. Without them, banks struggle to hedge their risk and if they remain exposed, the risks for bank treasurers heighten. As one market source told interest.co.nz; "It's not an easy time to manage risk."
Speizer says the higher than expected CPI meant some market speculators were caught out, having got their positions "the wrong way around." Having been burnt, these people aren't rushing back into the market.
At the same time rising interest rates overseas, notably in Australia, are rippling through to the NZ market.
Another market source describes a shortage of receivers through the short end of the yield curve out as far as three years with "woeful" liquidity. Liquidity refers to the ease with which an asset, or security, can be converted into ready cash without affecting its market price.
This source suggests some traders are in survival mode feeling battered and bruised, and isn't sure anyone knows exactly how and when the market will rectify itself.

Speizer says he doesn't recall things being as volatile since April 2009 when there was a "deluge of borrowers" wanting to fix mortgages and the market seized up. At the moment he says the market is still functioning and reckons we'll get to the point where people decide enough is enough.
"We might not be too far from that point," Speizer says.
But with home loan mortgage rates already on the rise, there's likely to be further increases.
"If swap rates rise mortgage rates will rise," Speizer says.
Nonetheless he suggests market expectations that the Official Cash Rate (OCR) could rise as high as 2.5% to 3% are overdone. The Reserve Bank last month increased the OCR for the first time in seven years, by 25 basis points to 0.50%. The OCR will next be reviewed on November 24.
In the meantime rising mortgage rates are encouraging home loan borrowers to fix before rates rise further, putting pressure on banks striving to hedge their risk in a market currently lacking liquidity, which means finding someone to take the other side of a deal may be challenging.
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