Recent polls show National and Labour nearly tied around 28-29% support each in the lead-up to the November 7 election, with both major parties losing ground to minor parties such as the Greens (at record highs near 16%), ACT, NZ First, and the Opportunity Party. This fragmentation has narrowed the projected popular vote gap between the two largest parties. Traders have priced the tightest outcome bands highest as a result, reflecting consistent polling averages and the absence of decisive shifts in recent surveys. Key variables that could widen the margin include final-week campaign momentum, voter turnout among undecideds, or late movements in minor-party support that indirectly boost one major party. Advance voting begins October 26.