ASX share market sell off: Buy in the dip or stay on the sidelines?

The ASX 200 Index is now down 8% in March.

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The Australian share market has tumbled again. At the close of the ASX on Monday afternoon, the S&P/ASX 200 Index (ASX: XJO) slumped 0.6%. The index has fallen over 8% in March alone. 

ASX share market weakness has been driven by several factors, including global share market weakness, ongoing conflict in the Middle East, concerns about fuel prices and supply chain disruptions. 

Rising inflation figures and fears about more Reserve Bank interest rate hikes have also contributed to broad-based selling. 

And the problem is, this volatility is unlikely to ease in the near future.

The question is, does the current market present a once-in-a-lifetime opportunity for investors to buy in the dip? 

Or is it a better idea to sit tight until the worst is over?

A bright graphic showing neon green and red arrows in a downwards direction with a world map behind them in neon blue

Image source: Getty Images

Why it could be better to buy in the ASX share market dip?

ASX share market dips often mean that bargain-hunting investors can buy into high-quality stocks at below their fair value.

After all, it's worth remembering that historically, markets will eventually recover from geopolitical shocks. While it's likely that there could be more downside yet to come, investors who want their money to grow over the next five or 10 years could benefit from buying and holding onto shares with high-growth potential.

Take Zip Co Ltd (ASX: ZIP) for example. The company's shares have plummeted over the past six months after investors took gains off the table following a strong price rally in 2025. 

As a tech company, Zip has also been caught up in the recent sector-wide tech sell off. Rising concerns about the global impact of the war in the Middle East have driven investors away from high-growth technology stocks and towards more stable assets.

But the company's outlook is strong and analysts are tipping an upside of up to 255% over the next 12 months, at the time of writing.  

The cons of buying the the dip is that there could well be more downside to come before shares bottom out and start rising again. 

Why it could be better to stay on the sidelines?

Economists believe the Reserve Bank will raise interest rates again in 2026. This will increase borrowing costs, put pressure on household spending, and restrict company profit margins.

And if the conflict in the Middle East escalates further, or goes on for a lot longer than expected, it could have widespread repercussions on company costs and supply chains.

There is also concern that share prices across some sectors have risen faster than their business fundamentals. 

Take Commonwealth Bank of Australia (ASX: CBA) for example. The banking giant's share price is overvalued relative to its peers, and it's not supported by earnings or business fundamentals. CBA's current price-to-earnings (P/E) ratio, at the time of writing, is 27.62, which is much higher (and therefore more expensive) than that of other major banks. Analysts are forecasting the shares to crash up to 47% over the next 12 months.

If you're a more risk-adverse investor or one who wants to invest for the short term, now is the perfect time to sit back and wait. The market hasn't priced in the worst-case scenario yet.

Ultimately, whether to buy in the dip or sit on the sidelines right now depends on your risk tolerance and how confident you are about a near-term market recovery.

Motley Fool contributor Samantha Menzies has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has no position in any of the stocks mentioned. The Motley Fool Australia has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

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