Auckland International Airport dropped 4.6 per cent to $6.25 and has gained 13.9 per cent this year.
"It's under a bit of uncertainty given what the Commerce Commission might do with regulation of their charging. That's put the stock on a bit of a back foot and investors are being quite cautious there," Williamson said.
Comvita fell 2 per cent to $8.03, Fisher & Paykel Healthcare Corp dropped 1.8 per cent to $8.52, and Ryman Healthcare fell 1.3 per cent to $8.11.
Kathmandu Holdings was the best performer, up 4.3 per cent to $1.95, while Stride Property rose 3.5 per cent to $1.77 and Scales Corp gained 3 per cent to $3.45.
Tourism Holdings gained 0.8 per cent to $3.70, a price last seen in 1993. It's risen 67.6 per cent this year.
"It's closing off the year very well. It just highlights what's happening in the New Zealand tourism sector at the moment. Obviously, the company is expanding as well offshore; the investors seem to like that very much," Williamson said. "It's one sector analysts are saying should remain pretty robust over the next year, and investors obviously try to pick stocks that are going to benefit from that."
Outside the benchmark index, Plexure Group rose 33 per cent to 32 cents. NZX has said it will carefully analyse trading ahead of the price-sensitive announcement that it has gained the largest McDonald's franchisee in Latin America and the Caribbean as a customer. The shares gained 26 per cent yesterday, having fallen to record low 19 cents per share on December 22 and have still dropped 46 per cent this year.
NZAX-listed mobile payments company Lateral Corp was unchanged at 5 cents. Lateral is the vehicle for a backdoor listing in a $3.2m deal with property developer Golden Tower NZ. Auckland-based Golden Tower will pay $1.6m in cash and add as an asset a commercial property valued at $1.6m for new shares giving it a 90 per cent shareholding in Lateral, dependent on shareholder approval. The move effectively takes the Lateral business private.