F&P Healthcare has also been a beneficiary of increased demand for its respirators due to the Covid-19 outbreak.
A2 Milk supplier Synlait Milk increased 4.2 per cent to $5.75, while Fonterra Shareholders' Fund units fell 0.8 per cent to $3.85.
Kathmandu Holdings led the market higher, rising 18.6 per cent to $1.02. The outdoor clothing and equipment chain said on Friday it was chasing aggressive savings and was in talks with staff to continue on reduced hours and pay.
"Cutting costs left, right and centre has given investors some confidence they will be able to ride this storm out," Davies said.
"In tough times, tough decisions need to be made."
Refining NZ increased 11.3 per cent to 69 cents, clawing back some recent losses.
Davies said the oil refinery operator may have convinced investors it had "managed to get the ball rolling" with its debt facilities, despite considerable turmoil in global fuel markets.
"There is plenty of water to go under the bridge, but there should be demand for a business such as theirs in New Zealand over the long term," he said.
Argosy Property, which fell 15.8 per cent last week, gained 1.8 per cent at 86.5 cents.
Other property stocks were weaker. Kiwi Property Group dropped 2.2 per cent to 88 cents, Stride Property declined 4.3 per cent to $1.33 and Property for Industry fell 2.4 per cent to $2.02.
Genesis Energy rose 3.9 per cent to $2.41 and Contact Energy increased 3.1 per cent to $5.64.
Internet infrastructure provider Chorus gained 2.8 per cent to $6.73.
Skellerup Holdings fell 6.8 per cent to $1.65 after announcing some facilities would operate at reduced levels or close temporarily during the next month, despite having essential service status.
Tourism Holdings fell 10 per cent to $1.08, posting the biggest fall of the day. Auckland International Airport dropped 5.3 per cent to $5.24 and Air New Zealand was unchanged at 90 cents.
Outside the benchmark index, furniture and appliance firm Smiths City was given an extra four weeks to make its next payment to lender ASB Bank as it negotiates with potential investors about a capital restructure. Its shares sank 42.5 per cent to an all-time low 10 cents after coming off Friday's trading halt.
"Hopefully they've got some bankers that are patient with them, particularly for their workforce because the last thing we need is a business of that size having to shut up shop permanently," Davies said.
Abano Healthcare fell 22.1 per cent to $1.80 after a planned private equity takeover was scrapped. The company has now closed all its Australian dental clinics due to the virus outbreak.
Hallenstein Glasson Holdings dropped 6.5 per cent to $2.72 after the retailer reported a 3.8 per cent decline in first-half profit, even as sales were up 5.7 per cent. The clothing chain's board decided against paying a dividend due to the uncertain environment.