The S&P/ASX 200 Index (ASX: XJO) is on course to record a small decline on Monday. In afternoon trade, the benchmark index is down slightly to 0.1% to 8,351.3 points.

Four ASX shares that are falling more than most today are listed below. Here's why they are dropping:

Elders Ltd (ASX: ELD)

The Elders share price is down 6% to $6.21. Investors have been selling this agribusiness company's shares following the release of its half year results. Although Elders reported a 67% increase in underlying earnings before interest and tax (EBIT) to $64.3 million, this fell short of the consensus estimate of $73 million. Elders CEO, Mark Allison, said: "Performance was impacted by prolonged dry conditions in some key cropping regions, causing lower rural products sales, but balanced by high demand and prices for livestock, which drove a significant improvement from the prior corresponding period and a strong first half overall."

James Hardie Industries plc (ASX: JHX)

The James Hardie share price is down a further 3% to $35.44. Investors have been selling this building materials company's shares since the release of its quarterly update last week. James Hardie posted a 1% decline in net sales to US$3,877.5 million and a 17% drop in net profit to US$424 million. In addition, when speaking about its outlook, management warned: "More recent, broader macroeconomic uncertainty could further impact the cost of home construction and weigh on consumer sentiment, influencing demand."

Origin Energy Ltd (ASX: ORG)

The Origin Energy share price is down almost 5% to $10.53. This follows the release of an update on its guidance for FY 2025. Origin Energy has upgraded its Energy Markets underlying EBITDA guidance range to $1,300 million to $1,400 million. This is up from its previous guidance range of $1,100 million to $1,400 million. However, this has been offset by news that it now expects its Octopus Energy business to record a loss of up to $100 million for the year. This compares unfavourably to its previous guidance of a positive contribution of up to $100 million. A warmer than expected April in the UK was to blame.

SGH Ltd (ASX: SGH)

The SGH share price is down almost 2% to $49.55. This morning, analysts at Bell Potter retained their hold rating on Seven Group Holdings' shares with a reduced price target of $54.00. It said: "Trading on 20.2x FY26 PE, we see SGH as fairly valued on a NTM EBIT growth outlook of mid-to-high single digit."