The New Zealand Dollar (NZDUSD) is trading within a tight range as investors weigh a jump in local living costs against a pivotal US Federal Reserve interest rate decision.

New Zealand's household living costs have surged to their highest level since September 2024, driven primarily by a sharp rise in petrol prices, according to data released by Statistics New Zealand on Tuesday.

Meanwhile, the US dollar is steady ahead of the Federal Reserve's policy announcement, with the market split on whether the central bank will raise rates or hold steady amid conflicting signals from inflation data and geopolitical tensions in the Middle East.

New Zealand Living Costs Hit New Highs

New Zealand's Household Living-costs Price Index (HLPI) rose 3.2% in the year to June, the fastest annual pace since September 2024, Statistics New Zealand said on Tuesday. The quarterly HLPI increased 1.4% in the June quarter, accelerating sharply from the 2.1% annual pace recorded in the March quarter.

Petrol prices were the primary driver of the increase, rising 27.5% over the past year. Statistics New Zealand price and inflation spokesperson Nicola Growden noted that the rise coincided with supply disruptions from the Middle East conflict that erupted in late February. Diesel prices also rose 18.9% over the same period.

Unlike the Consumers Price Index (CPI), the HLPI includes mortgage interest payments. Ordinary household interest costs fell 15.4% over the year to June, providing some relief. This helped keep the HLPI increase (3.2%) well below the CPI annual inflation rate of 4.1% for the same period. The Reserve Bank of New Zealand targets CPI inflation between 1% and 3% annually, meaning current price pressures remain well above target.

Separate retail data showed 69% of retailers are confident about surviving the next 12 months, up from 61% in the previous quarter. Additionally, 61% expect to meet or exceed sales targets in the third quarter, a significant improvement from 34% in the last survey.

Political Landscape: National Rules Out TOP Coalition

National Party leader Christopher Luxon on Tuesday reiterated his party's decision to rule out any post-election coalition with The Opportunities Party (TOP). Luxon stated that voting for TOP is effectively a vote for Labour and the Greens, describing TOP's tax policies as "extreme" and advocating for "more spending, more taxes, and more borrowing."

National Party campaign chair Simon Brown added that TOP's policies, including raising the criminal responsibility age to 25, are "quite radical" and too soft on law and order. Recent polls show TOP approaching the 5% parliamentary threshold, giving them potential to enter parliament and act as a kingmaker.

TOP leader Raf Manji responded by calling Luxon's comments "outdated tribalism," stating New Zealanders want parties to move beyond ideological divisions. Labour leader Chris Hipkins described National's move to rule out TOP as "quite hasty and offhand," suggesting Luxon might change his stance if TOP crosses the 5% threshold on election day.

Market Overview: NZX Edges Higher

New Zealand's benchmark index rose 11 points, or 0.1%, to 13,862 on Tuesday, reversing early losses to close at a fresh record high for the second consecutive session. Healthcare, communication services, industrials, and consumer staples sectors led the gains.

Falling oil prices continued to lift market sentiment, easing inflation concerns and reducing expectations for further interest rate hikes. However, losses in US stock futures, driven by a global tech sell-off, limited the upside.

Top performers on the day included AFT Pharmaceuticals (up 5.2%), Fisher & Paykel Healthcare (up 2.2%), Auckland International Airport (up 1.0%), and a2 Milk (up 0.6%).

Geopolitical Tensions: Iran Negotiations in Focus

Crude oil prices edged higher on Tuesday after a Saudi Arabian drone attack, but gains were capped by reports of potential progress in US-Iran negotiations. Saudi Arabia said its air defenses intercepted and destroyed several drones launched from Iraqi territory targeting oil facilities in the eastern province. Saudi Defense Ministry spokesperson Turki al-Maliki blamed Iran-backed militias for the attack.

Meanwhile, mediators believe the US and Iran are close to a breakthrough that could revive the Memorandum of Understanding signed in June, which outlined a preliminary ceasefire. The development came ahead of a meeting between US President Donald Trump and Israeli Prime Minister Benjamin Netanyahu.

In a separate development, Oman has proposed a joint management mechanism for the Strait of Hormuz, based on the Malacca Strait model, where vessels make voluntary contributions for navigational and environmental services. A US official reiterated Washington's rejection of any fee structure, stating the Strait of Hormuz is an international waterway.

Iranian Foreign Minister Araghchi held separate phone calls with his Saudi and Omani counterparts to discuss security in the Strait of Hormuz, emphasizing the need for enhanced cooperation on joint diplomatic efforts to establish regional stability.

Technical Analysis: NZDUSD in a Holding Pattern

The New Zealand Dollar is trading in a compressed range as it awaits the Federal Reserve's rate decision. The currency briefly spiked to the 0.5800 handle from intraday lows near 0.5760 on reports of potential progress in US-Iran negotiations, but the gains were capped ahead of the Fed's decision.

On the 4-hour chart, the price is hovering around the middle Bollinger Band at 0.5780, which serves as the key pivot point for short-term direction. The upper band at 0.5800 provides immediate resistance, while the lower band at 0.5760 offers dynamic support. The Bollinger Bands are contracting significantly, indicating a period of compressed volatility.

The 14-day Relative Strength Index (RSI) has retreated from oversold levels near 30 to the 45-55 neutral zone, suggesting the "oversold bounce" technical conditions are building. The MACD remains in negative territory without a clear bullish crossover, confirming the neutral, range-bound bias.

A sustained break above the 0.5820 resistance zone is needed to confirm a bullish breakout, which could open the door for a move toward the 0.5860 target. Conversely, a breakdown below the 0.5750 support area would expose the currency to a potential decline toward the 0.5720 region.

The Fed's decision on Wednesday is the key event risk. While market pricing suggests a roughly 70% probability of a rate hold, a surprise hike would be a major bullish catalyst for the US dollar and could trigger a sharp sell-off in risk-sensitive currencies like the NZD. The Fed's tone on inflation and the impact of oil prices will be closely watched for clues on the future path of policy.