Materials Slides as Weak Breadth and Albemarle Weigh on XLB

The exchange-traded fund Materials Select Sector SPDR Fund (XLB) closed -1.2% on Thursday, September 24, weighed down by weak internal breadth as only 16.7% of sector members advanced. Across the sector, 42.6% of the fund's graded weight sits in companies graded A or B against their industry peers. Losses were paced by Albemarle Corp, which finished -4.6%. Macro pressures drove the retreat as surging Treasury yields and higher oil prices weighed broadly across cyclical groups. Broader equity markets struggled as geopolitical uncertainty pushed long-term bond yields to multi-month highs.

Under the Surface

• The cap-weighted sector move of -1.0% finished ahead of the equal-weighted measure of -1.3%, indicating that the largest components by market weight held up better than the broader group.
• Internal participation remained exceptionally weak throughout the session, with fewer than a fifth of the sector's components finishing in positive territory.
• Across the wider equity market, 3 of the 11 sectors rose, reflecting widespread pressure across sectors.

Company Drivers

• Albemarle Corp recorded the sector's steepest decline as pressures from softer lithium prices and slower electric vehicle demand continued to challenge the stock. The company saw no fresh same-day corporate announcements to account for the outsized move.
• Steelmakers provided a modest counterweight against the broader downturn, with Nucor Corp closing +0.6% and Steel Dynamics Inc finishing +0.4%.
• Packaging and industrial suppliers showed resilience in domestic manufacturing investments, with packaging manufacturers announcing multi-state facility expansions to support growing beverage and supply chain demand.

The Fund Vehicle Materials Select Sector SPDR Fund manages $8.8 billion in net assets and charges an expense ratio of 0.08%, offering concentrated exposure to domestic chemicals, metals, and packaging producers. The session extended a longer downturn that has brought the fund to $49.69, after closing -7.3% over the past month and -44.2% over the past twelve months.