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First Solar quarterly revenue slides 22.8% to $1.23 billion

First Solar's revenue decline is deepening. Results for the quarter ended September 30, 2026, from the earnings release filed with the SEC on Oct 29, 2026.

Octans ResearchPublished

Snapshot

First Solar's revenue decline is deepening: revenue slid 22.8% to $1.23 billion in the quarter ended September 30, 2026, from $1.59 billion a year earlier, after a 3.7% year over year decline the quarter before.

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as of 10:02 ET · Realtime derived data

What We Know

Revenue for the quarter ended September 30, 2026 was $1.23 billion, versus $1.59 billion in the same quarter a year earlier, down 22.8%. Diluted earnings per share was $5.30, up from $4.24.

Bar chart: First Solar: revenue, last eight quarters. US$ billions by fiscal quarter end, as of Oct 29, 2026. Dec 2024 1.51; Mar 2025 0.84; Jun 2025 1.1; Sep 2025 1.59; Dec 2025 1.68; Mar 2026 1.04; Jun 2026 1.06; Sep 2026 1.23. Latest quarter $1.23B, Down 22.8% vs a year earlier.
Source: SEC EDGAR (earnings release and XBRL financial data)

Quarterly revenue by fiscal quarter end, oldest first: Dec 2024: $1.51 billion; Mar 2025: $844.6 million; Jun 2025: $1.10 billion; Sep 2025: $1.59 billion; Dec 2025: $1.68 billion; Mar 2026: $1.04 billion; Jun 2026: $1.06 billion; Sep 2026: $1.23 billion.

Octans View

Year over year revenue change by quarter, computed from the filed figures: Dec 2025 up 11.1%; Mar 2026 up 23.6%; Jun 2026 down 3.7%; Sep 2026 down 22.8%. On those figures, First Solar's revenue decline is deepening. That read compares the latest two year over year growth rates and nothing else.

Bear Case · Room for Disagreement

This brief covers reported revenue and diluted earnings per share only. It does not cover guidance, margins, segment results, cash flow or the earnings call, and it makes no forecast. Revenue is the total on the release line we matched; a company's own adjusted measures can differ.

Method and source. Octans Research matched the revenue line in the earnings release (Exhibit 99.1) to the year ago quarter the company reported in its own XBRL financial data; the two must agree before anything is published. The quarterly history comes from the same XBRL data. The text is generated from those verified figures by a fixed template; no model wrote it.

Chart

$FSLR adjusted close, last 6 months $FSLR adjusted close, last 6 months: series falling from 211 to 177 (−16.3%) from 2026-05-04 to 2026-10-29. Scale 150 to 350. 150200250300350 2026-05-042026-10-29 $FSLR ADJUSTED CLOSE, LAST 6 MONTHS −16.3% 176.9
Source: Tiingo · As of 2026-10-29Indicative, not investment advice.

Sources

  1. [1]SEC EDGAR — First Solar earnings release for the quarter ended September 30, 2026 (Exhibit 99.1), filed Oct 29, 2026
  2. [2]SEC EDGAR — First Solar XBRL financial data (company facts)

These are the sources this piece was drafted from. How we verify. Found an error? Tell us and we correct it in public.

$1.23B

Revenue for the quarter ended September 30, 2026 was $1.23 billion, versus $1.59 billion in the… · What we know

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