Mineral Resources Ltd (ASX: MIN), Woolworths Group Ltd (ASX: WOW), and Boss Energy Ltd (ASX: BOE) shares are turning heads today.
One of the large-cap ASX stocks is smashing the 0.3% losses posted by the S&P/ASX 200 Index (ASX: XJO), while two are significantly trailing those losses.
Here's what's grabbing investor interest.
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Boss Energy shares tumble on production woes
Boss Energy shares are down 3.9% at the time of writing, changing hands for $1.48 apiece.
That underperformance follows the release of the ASX 300 uranium stock's March quarter update (Q3 FY 2026).
It was a difficult three months for the Aussie uranium miner, with operations at its Honeymoon mine in South Australia impacted by inclement weather and lower ore grades.
This led to a 53% quarter-on-quarter decline in drummed uranium production to 203,000 pounds. Sales volumes fell 7% from Q2 to 325,000 pounds.
And while the miner's average realised price of US$74 per pound was in line with the prior quarter, costs were up around 100%, with Boss reporting a C1 cost of $60 per pound.
Boss Energy shares are also likely under pressure after management cut full-year FY 2026 production guidance to the range of 1.40 million pounds to 1.45 million drummed uranium. That is down from prior guidance of 1.6 million pounds.
Which brings us to…
Mineral Resources shares jump on guidance upgrades
Mineral Resources shares are turning heads today as the stock shakes off the broader market malaise to charge higher.
Shares in the ASX 200 lithium miner and diversified resources producer are up 6.5% at the time of writing, trading for $65.91 each.
This strong performance follows the release of Mineral Resources' third-quarter update.
Investors are reacting positively today, following a range of full-year guidance upgrades.
In its iron ore division, Mineral Resources reported that Onslow Iron shipped 7.2 million tonnes over the three months. The company upgraded FY 2026 guidance to the range of 17.7 to 19.4 million wet metric tonnes (wmt).
Management also increased production guidance at Mineral Resources Mining Services to 320 million to 330 million tonnes. That's up from prior guidance of 305 million to 325 million tonnes.
The ASX 200 miner also boosted its full-year lithium volume guidance.
Woolworths shares sink on growing cost-of-living pressures
Woolworths is joining Mineral Resources and Boss Energy shares in making headlines today.
Woolworths shares are down 6.2% at the time of writing, swapping hands for $34.99 apiece.
This follows the release of the ASX 200 supermarket giant's own March quarter update.
Although total sales for the Q3 were up 4.5% year on year to $18.1 billion, management noted that they are seeing "signs of increased customer caution".
Investors will also have noted that, amid a strengthening Australian dollar, the company's New Zealand Food sales fell 5.2% year on year in Aussie dollar terms to $1.81 billion.
"The conflict in the Middle East is creating greater uncertainty for our customers, suppliers and team at a time when cost-of-living pressures are already acute," Woolworths CEO Amanda Bardwell said.
