Australian shares finished lower on Monday as investors monitored developments surrounding a potential long-term ceasefire agreement between the United States and Iran.

Ongoing uncertainty over the Strait of Hormuz and global energy supplies continued to influence market sentiment, contributing to a rebound in oil prices.Brent crude rose more than 2 per cent to above US$93 a barrel after reaching its lowest level since mid-April at the end of the previous week.The S&P/ASX 200 declined by around 0.2 per cent, with most sectors trading lower.Healthcare was among the weakest performers.ResMed recorded a sharp fall while CSL moved closer to a 52-week low.However, Pro Medicus surged after announcing two new contracts, helping offset some of the sector's losses.Major banks were generally weaker as slowing property market conditions and the impact of recent interest-rate increases weighed on sentiment.Commonwealth Bank, ANZ and Westpac all declined, while National Australia Bank posted a modest gain.Technology stocks led the market higher, supported by strong gains in Xero and WiseTech Global despite a broker downgrade for WiseTech.Mining companies also advanced, with BHP, Rio Tinto and lithium producer PLS posting gains.

Higher oil prices provided support to energy stocks including Woodside Energy and Santos, while Whitehaven Coal rose following reports of another mining accident in China.

Among individual companies, DroneShield fell nearly 10 per cent after more than half of shareholders voted against its remuneration report, triggering a first strike under corporate governance rules.Lendlease declined after selling development rights in a major Milan project.

In contrast, Syrah Resources jumped more than 20 per cent after resolving an offtake dispute with Tesla, and Ventia Services gained after securing a contract extension in Western Australia.