The Australian share market is under heavy pressure on Monday as escalating geopolitical tensions shake investor confidence.
At the time of writing, the S&P/ASX 200 Index (ASX: XJO) is down more than 4%, with almost every sector trading lower.
The sell-off follows rising concerns about the conflict involving the United States, Israel, and Iran. Oil prices have surged as the conflict threatens global energy supply.
Let's take a closer look at how each major sector of the ASX is performing today.

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Materials stocks lead the decline
The S&P/ASX 200 Materials Index (ASX: XMJ) is the worst-performing sector today, down 5.69%.
Mining and commodity companies are highly sensitive to changes in the global economic outlook. Many of these stocks have been heavily sold as traders move to reduce risk during the broader market downturn.
Technology shares tumble
Technology stocks are also under significant pressure.
The S&P/ASX 200 Information Technology Index (ASX: XIJ) has fallen 5.32%, making it one of the weakest sectors in today's session.
The sector includes a number of high-growth companies whose share prices have been volatile during recent market swings.
Financials and industrials fall sharply
The S&P/ASX 200 Financials Index (ASX: XFJ) has dropped 3.95%.
Australia's major banks make up a large portion of the ASX 200, and heavy selling in the sector is adding to the broader market decline.
Meanwhile, the S&P/ASX 200 Industrials Index (ASX: XNJ) is down 4.34%.
This sector includes transport operators, infrastructure companies, and engineering businesses that are closely tied to economic activity.
Healthcare and property under pressure
The S&P/ASX 200 Health Care Index (ASX: XHJ) has declined 3.38%.
Several large healthcare names have already experienced a difficult year, and the sector is continuing to track lower today.
Property stocks are also sliding. The S&P/ASX 200 Real Estate Index (ASX: XRE) has fallen 4.30% as investors reassess interest rates and economic growth outlooks.
Consumer sectors retreat
Consumer-facing sectors are also in the red today.
The S&P/ASX 200 Consumer Discretionary Index (ASX: XDJ) has dropped 3.35%, with retail and other consumer businesses retreating during the broader market sell-off.
Meanwhile, the S&P/ASX 200 Consumer Staples Index (ASX: XSJ) is down 2.66%.
The S&P/ASX 200 Communication Services Index (ASX: XTJ) has slipped 2.51%, while the S&P/ASX 200 Utilities Index (ASX: XUJ) is down 1.59%.
Energy stands out as the only winner
The one sector holding up today is energy.
The S&P/ASX 200 Energy Index (ASX: XEJ) is up about 0.9% after oil prices surged to around US$109 per barrel.
Higher oil prices are supporting Australian oil and gas producers, helping the sector outperform the rest of the market during today's sell-off.
Foolish Takeaway
Today's trading session highlights how broadly the market is being affected, with almost every ASX sector moving lower at the same time.
Energy stocks are the only major area of strength as rising oil prices support the sector while the rest of the market trades lower.