Smart Money Is Buying Owens Corning (OC)

According to the most recent reported 13F filings, institutional investors showed selective buying interest in Owens Corning (OC), with activity led by quantitative firms, value-oriented managers, and several large hedge funds.

The accumulation suggests growing confidence in Owens Corning’s ability to benefit from resilient construction and renovation demand, pricing discipline across insulation and roofing products, and the company’s strong cash flow generation despite ongoing macroeconomic uncertainty. Below are the most notable buyers from the latest reported quarter:

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AQR CAPITAL MANAGEMENT LLC (Cliff Asness)
Shares: 2,540,023   Change: +1,107,377   Value: $0.27B

Cliff Asness’s AQR Capital Management led buying activity this quarter with the largest reported increase in shares. The significant accumulation likely reflects Owens Corning’s attractive quantitative profile, including strong profitability, shareholder returns, and valuation characteristics. The company’s exposure to housing repair and remodeling activity, combined with disciplined capital allocation, may continue screening favorably within AQR’s systematic framework.

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GOTHAM ASSET MANAGEMENT, LLC (Joel Greenblatt)
Shares: 510,371   Change: +120,587   Value: $0.06B

Joel Greenblatt’s Gotham Asset Management increased its position meaningfully during the quarter. Owens Corning’s strong return on capital, established market position, and discounted valuation relative to normalized earnings likely align well with Gotham’s value-oriented investment methodology.

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DAVIS SELECTED ADVISERS (Chris Davis)
Shares: 2,100,935   Change: +54,352   Value: $0.23B

Chris Davis continued adding to an already substantial position, reinforcing long-term conviction in Owens Corning’s business model and capital allocation strategy. Davis often favors durable companies with strong management teams and meaningful free cash flow generation, characteristics that align closely with Owens Corning’s operating profile.

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GRANTHAM, MAYO, VAN OTTERLOO & CO. LLC (Jeremy Grantham)
Shares: 83,690   Change: +21,427   Value: $0.01B

Jeremy Grantham’s GMO modestly expanded its position during the quarter. The addition may reflect continued interest in industrial and housing-related companies trading at reasonable valuations relative to broader market multiples.

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Overall Takeaway

Collectively, these filings highlight improving institutional sentiment toward Owens Corning shares, led primarily by substantial additions from AQR Capital Management and Gotham Asset Management, alongside continued accumulation from Davis Selected Advisers and GMO.

The concentration of buyers among respected quantitative and value-oriented investors suggests growing confidence that OC may still be undervalued relative to its earnings power, pricing strength, and long-term industry positioning. As construction activity stabilizes and demand across roofing, insulation, and composites remains resilient, Owens Corning appears well-positioned to benefit from operating leverage, strong cash flow generation, and continued institutional accumulation.