

First Solar vs Tenaris
Leading US maker of thin film solar panels vs Global steel pipe producer for oil and gas. Which is the better buy for your portfolio in October 2026? Plain-English answer below.
First Solar manufactures thin-film solar panels in U.S. and international factories, benefiting from domestic content incentives that give it a structural edge over Asian competitors, while Tenaris makes the seamless steel tubes energy companies use in conventional oil and gas drilling. Clean energy and fossil fuel extraction sit on opposite sides of the energy transition, yet both companies depend on the same infrastructure spending cycles. The First Solar vs Tenaris comparison shows how policy tailwinds, capital intensity, and global demand dynamics shape the outlook for each.
First Solar manufactures thin-film solar panels in U.S. and international factories, benefiting from domestic content incentives that give it a structural edge over Asian competitors, while Tenaris ma...
Why It’s Moving

First Solar Beats Q3 Earnings Estimates but Cuts Outlook Amid Demand Headwinds
- Q3 net income reached $571 million with adjusted EBITDA of $744 million, beating consensus estimates for earnings per share at $5.30 versus the projected $4.64.
- The company announced a $500 million share repurchase program alongside the inauguration of its first phase of the Gaffney, South Carolina manufacturing facility, which targets 3.4 GW capacity by 2027.
- Management cited weaker demand and pricing pressures as reasons for cutting the 2026 sales and shipment outlook, even as recent U.S. bookings suggest module prices are holding near $0.36/W.

Tenaris slips as valuation concerns put its recent rally under pressure.
- Tenaris shares fell about 3.9% on September 14, showing that recent gains remain vulnerable to valuation-driven selling.
- A valuation assessment flagged the stock as expensive relative to its estimated fair value, reinforcing the downside-risk narrative behind the roughly 18% warning.
- Analyst sentiment remains mixed rather than uniformly bearish: the consensus is Hold, with several Buy ratings offset by a larger group of Hold recommendations.

First Solar Beats Q3 Earnings Estimates but Cuts Outlook Amid Demand Headwinds
- Q3 net income reached $571 million with adjusted EBITDA of $744 million, beating consensus estimates for earnings per share at $5.30 versus the projected $4.64.
- The company announced a $500 million share repurchase program alongside the inauguration of its first phase of the Gaffney, South Carolina manufacturing facility, which targets 3.4 GW capacity by 2027.
- Management cited weaker demand and pricing pressures as reasons for cutting the 2026 sales and shipment outlook, even as recent U.S. bookings suggest module prices are holding near $0.36/W.

Tenaris slips as valuation concerns put its recent rally under pressure.
- Tenaris shares fell about 3.9% on September 14, showing that recent gains remain vulnerable to valuation-driven selling.
- A valuation assessment flagged the stock as expensive relative to its estimated fair value, reinforcing the downside-risk narrative behind the roughly 18% warning.
- Analyst sentiment remains mixed rather than uniformly bearish: the consensus is Hold, with several Buy ratings offset by a larger group of Hold recommendations.
Investment Analysis

First Solar
FSLR
Pros
- Strong Q3 2025 financial performance with significant increases in net sales, income, and cash balances, surpassing analyst expectations.
- Leader in U.S. utility-scale solar market with innovative cadmium telluride thin-film photovoltaic technology and expanding manufacturing capacity.
- Positive analyst sentiment with multiple firms issuing 'Strong Buy' ratings and price targets generally above current share price, reflecting growth expectations.
Considerations
- Stock price forecasts indicate potential near-term downside of around 6-11% despite current strong performance, suggesting valuation concerns.
- High beta of 1.59 indicates stock price volatility relative to market, which may increase investment risk amid market fluctuations.
- No dividend payments, which may deter income-focused investors and reflect reinvestment needs in capital-intensive growth initiatives.

Tenaris
TS
Pros
- Completion and continuation of significant share buyback program indicating confidence from management in company valuation and capital allocation.
- Strategic acquisitions and consolidation moves in the steel pipe segment enhance market position and operational scale.
- Maintains a solid analyst buy rating supported by stable earnings and global infrastructure demand linked to energy and industrial sectors.
Considerations
- Exposure to steel commodity prices and cyclical demand risks in energy and construction sectors increases earnings volatility.
- Recent earnings and guidance details are less prominently positive compared to peers, reflecting potential execution or market challenges.
- Currency fluctuations and geopolitical factors impacting global operations may weigh on margins and growth in emerging markets.
First Solar (FSLR) Next Earnings Date
First Solar has a confirmed upcoming earnings report scheduled for October 29, 2026, after market closes. This release will cover the company's third-quarter financial results for the current fiscal year. Investors should note that this date follows the typical quarterly reporting cadence observed in previous filings.
Tenaris (TS) Next Earnings Date
The next earnings date for TS has not been confirmed yet. Based on the historical reporting pattern, the company typically releases results approximately three months after the previous report, suggesting an expected timing of early November 2026. This upcoming release will cover the third quarter of fiscal year 2026.
First Solar (FSLR) Next Earnings Date
First Solar has a confirmed upcoming earnings report scheduled for October 29, 2026, after market closes. This release will cover the company's third-quarter financial results for the current fiscal year. Investors should note that this date follows the typical quarterly reporting cadence observed in previous filings.
Tenaris (TS) Next Earnings Date
The next earnings date for TS has not been confirmed yet. Based on the historical reporting pattern, the company typically releases results approximately three months after the previous report, suggesting an expected timing of early November 2026. This upcoming release will cover the third quarter of fiscal year 2026.
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