Key Highlights

  • FTC Solar (NASDAQ:FTCI) soared 47.48% intraday to USD 2.14 on 65.81 million shares, following third-quarter results and a fourth-quarter Revenue outlook of USD 44 million to USD 52 million.
  • Array Technologies (NASDAQ:ARRY) advanced 22.20% to USD 5.67 after unveiling a stock-for-stock Merger with Shoals Technologies Group and a lower 2026 adjusted EBITDA outlook.
  • SunPower (NASDAQ:SPWR) gained 19.60% to USD 0.2703 with no company announcement identified for November 2 to November 4, 2026, while Volume ran near 2.96 times normal.
  • Eos Energy Enterprises (NASDAQ:EOSE) rose 21.61% to USD 2.31 ahead of its full third-quarter report on November 5, 2026, after preliminary revenue of USD 82 million to USD 83 million.

FTC Solar (NASDAQ:FTCI): Up 47.48% After Third-Quarter Results

FTC Solar (NASDAQ:FTCI) was quoted at USD 2.14, up 47.48%, in regular trading on November 4, 2026. The previous close was about USD 1.45 (calculated), so the rise equals roughly USD 0.69 a share. Intraday volume hit 65.81 million shares, roughly 295.7 times the screener's relative-volume baseline, and market Capitalization was around USD 39 million. A company release dated November 4, 2026 reported third-quarter revenue of USD 32.8 million, up from USD 26.0 million, plus GAAP Gross Profit of USD 1.9 million, a 5.8% margin, versus a gross loss in the second quarter. Adjusted EBITDA was a loss of USD 5.2 million, an improvement from a loss of USD 9.8 million. GAAP Net Income of USD 6.7 million came mostly from a USD 19.5 million non-cash Warrant gain, while non-GAAP net loss totaled USD 7.6 million. Contracted Backlog was about USD 640 million, yet cash was only USD 5.1 million, and quoted moves may reverse. The company also expects positive adjusted EBITDA in the first quarter of 2027, and it reported Short-Term Debt of USD 24.8 million and a stockholders' Deficit of USD 17.4 million, so whether Working Capital can be funded without issuing shares remains the key question.

Array Technologies (NASDAQ:ARRY): Up 22.20% on a Shoals Merger

Array Technologies (NASDAQ:ARRY) was quoted at USD 5.67 during regular hours on November 4, 2026, higher by 22.20%. The prior close is put at USD 4.64 (calculated), so the advance is about USD 1.03 a share. The trigger was a company release issued at 7:01 a.m. ET announcing a merger agreement with Shoals Technologies Group, released alongside third-quarter results. Each Shoals share will convert into 1.6931 Array shares, implying roughly USD 9.60 per Shoals share at the intraday quote (calculated), a figure that moves with Array's price until closing. Completion is anticipated in the first quarter of 2027, pending Shareholder and regulatory approvals. The deal came with a softer outlook, as full-year 2026 adjusted EBITDA guidance was cut to USD 190 million to USD 210 million from USD 210 million to USD 230 million. Risks include a commitment to redeem USD 317.5 million of Series A perpetual preferred stock and the challenge of integration. Executed contracts and awarded orders hit a record USD 2.6 billion, up 42%, and management cites more than USD 100 million of annual adjusted EBITDA synergies within three years, but the fixed exchange ratio exposes both groups of holders to share price swings until closing.

SunPower (NASDAQ:SPWR): Up 19.60% With No Identified Catalyst

SunPower (NASDAQ:SPWR) was quoted at USD 0.2703, up 19.60%, in intraday market data on November 4, 2026. The previous close was USD 0.2260 (calculated), so the gain amounts to USD 0.0443. Volume of about 5.56 million shares was roughly 2.96 times the usual level, which means real participation behind the move. No company release or filing dated November 2 to November 4, 2026 was identified. The latest releases are dated October 27, 2026, covering a Texas expansion, and October 8, 2026, covering a premium panel. In its July 28, 2026 outlook, the company guided third-quarter revenue of USD 75 million or more and an operating loss below USD 1.0 million, so a result measured against that guidance is the likely next price event. The second-quarter release showed cash of USD 4.0 million against a stated floor of USD 10 million. The stock trades below USD 1.00, spreads can be wide, Equity raises dilute holders, and quoted gains can reverse within the session. The company also disclosed USD 26.2 million raised in a private Placement on September 3, 2026, and second-quarter revenue of USD 55.96 million, down from USD 72.79 million in the first quarter.

Eos Energy Enterprises (NASDAQ:EOSE): Up 21.61% Before Earnings

Eos Energy Enterprises (NASDAQ:EOSE) was quoted at USD 2.31 during regular hours on November 4, 2026, up 21.61%. The prior close is about USD 1.90 (calculated), so the gain equals roughly USD 0.41 a share. Published market data showed 13.48 million shares traded and a market capitalization near USD 841 million. No announcement dated November 2 to November 4, 2026 was identified, and the company has said full third-quarter results arrive on November 5, 2026, so the move is best seen as trading-driven. On October 19, 2026 it released preliminary figures: revenue of USD 82 million to USD 83 million, GAAP gross Margin between negative 55% and negative 53%, cash of about USD 344 million and backlog near USD 765 million. A stock that climbs more than 20% the day before Earnings can swing sharply in either direction. Eos completed a rights offering in July 2026, which dilutes holders by spreading earnings across more shares. Full-year revenue was guided to the lower half of the USD 300 million to USD 350 million range, and since the preliminary numbers are already public, the report will likely be judged on cash burn, production ramp and any updated guidance.

Where Things Stand

FTC Solar (NASDAQ:FTCI) was the biggest mover at 47.48%, and what ties the four together is their solar and storage exposure rather than a shared catalyst. FTC Solar rose on third-quarter results and Array Technologies (NASDAQ:ARRY) on a Shoals merger. SunPower (NASDAQ:SPWR) rose with no announcement identified. Eos Energy Enterprises (NASDAQ:EOSE) rose ahead of its November 5, 2026 report. Whether peer news contributed could not be confirmed. Three of the four trade at small market values, so quoted moves may reverse. Intraday prices change, and this is not Investment advice.