Why is this temperamental ASX stock surging 11% today?

This $1.5 billion ASX stock is roaring back to life on Tuesday.

IperionX Ltd (ASX: IPX) stock jumped 11% to $4.86 during afternoon trade, a sharp reversal that's sure to catch investors' attention.

And it's a welcome change. Over the past month, the ASX stock is still down 18%. Stretch that to six months, and it's off a brutal 46%. Yet zoom out further, and the longer-term story is still impressive, with shares up 106% over the past year.

So what's behind today's surge?

Sentiment shift

There's no single headline driving the move. No major contract win. No fresh earnings upgrade. Instead, this looks like a classic sentiment shift and a reminder of just how quickly momentum can turn in high-growth ASX stocks.

Start with the broader market. Risk appetite has improved, and that tends to flow straight into more speculative, high-beta stocks like IperionX. When confidence returns, these ASX stocks are often the first to bounce and they don't move quietly. That's exactly what we're seeing today.

Brokers see upside ahead

Then there's the setup. After weeks of selling pressure, IperionX had been trading at heavily discounted levels. The recent pullback had taken some of the heat out of the ASX stock, resetting expectations and clearing out weaker hands.

Now, with no new negative news weighing on sentiment, buyers are stepping back in. And when they do, the moves can be sharp.

Trading View data show that all four analysts that follow the ASX stock rate it as a strong buy. They have set the average 12-month price target of $7.77, which suggests a 60% upside at current levels.

Powerful long-term themes

But there's also a bigger story underpinning the rebound. IperionX sits at the centre of several powerful long-term themes. The company is focused on titanium production and supply chains, positioning itself as a key player in critical minerals.

That puts it firmly in the conversation around defence demand, advanced manufacturing, and the push to secure domestic supply chains, particularly in the US.

That narrative hasn't changed. If anything, it continues to strengthen as governments and industries prioritise supply chain resilience and strategic materials. So when sentiment improves, investors are quick to revisit ASX stocks like IperionX that offer exposure to those themes.

Of course, it's not without risk. This is still a volatile, early-stage growth story. Price swings can be dramatic, and moves like today's can just as easily reverse if sentiment turns again. The company's long-term success depends on execution, scaling production, and turning potential into consistent revenue.

The Foolish bottom line?

Today's rally looks less like a fundamental shift and more like a sentiment-driven rebound after a heavy sell-off of the ASX stock.

But it also highlights something important. IperionX remains a high-conviction story for many investors. And when confidence returns, even briefly, the share price can move fast.

The question now is whether this is the start of a sustained recovery or just another bounce in a volatile ride.