AAON · AAON

The thesis

AAON, the maker of rooftop heating-and-cooling units and data-center cooling systems, is modestly more likely to lead the S&P 500 over the next three months. It reported record third-quarter sales and raised 2026 guidance on 9 November 2026, and the shares have closed higher in five straight sessions since the 5 November 2026 closing low of $54.42. The fourth-quarter report and annual filing, expected in early 2027, show whether the restatement of two quarters and the disclosed material weakness fade or spread.

Third-quarter net sales were $707.4 million, up 84.1% from $384.2 million a year earlier, per the company's 8-K press release. Gross margin was 26.7% against 27.8% a year earlier and up 60 basis points from the second quarter. Adjusted earnings per share were $0.83 against a $0.57 estimate, per Benzinga.

The shares closed at $62.87 on 9 November 2026, $75.01 on 10 November 2026 and $78.80 on 12 November 2026. The market has priced in the guidance raise and looked past the restatement, yet the shares sit 47.6% below the 52-week high of $150.46 set intraday on 3 June 2026.

Both covering firms that moved after the report cut targets while keeping their ratings. Oppenheimer lowered its target to $105 from $115 on 10 November 2026 and kept Outperform, citing sector valuation trends, per Investing.com. Baird lowered its target to $104 from $110 and kept Outperform the same day, per Benzinga. Both targets sit above the last close.

Bullish and bearish views on AAON, Inc.

The bull case on AAON, Inc. (AAON), in brief: guidance moved well above estimates. The bear case: two quarters were restated.

Bull case

• Guidance moved well above estimates. AAON raised 2026 sales growth guidance to 72%–75% from 55%–60%, a range of $2.480–2.524 billion against a $2.301 billion estimate, per the 8-K and Benzinga on 9 November 2026.
• Gross margin rose for a second quarter. Margin of 26.7% was up 60 basis points from the second quarter, and full-year guidance moved to about 26% from 25%–26%, per the 8-K. The August margin cut has been reversed.
• Data-center sales keep compounding. BASX-branded sales were $397.2 million, up 218.3%, and AAON-branded sales reached a record $310.2 million, up 19.6%, per the third-quarter release on 9 November 2026.
• Backlog remains far above last year. Total backlog was $1,854.5 million at 30 September 2026, up 40.5% from a year earlier, with BASX at $1,355.2 million, per the 8-K.
• Cash generation turned visible. Operating cash flow was $146.9 million for the first nine months of 2026, per the release. Investing.com on 10 November 2026 reported free cash flow positive for the first time in two years.
• Insiders bought below today's price. Director David Raymond Stewart bought 1,000 shares at $74.66 on 15 September 2026, and Executive Vice President Matthew Shaub bought 457 shares at $76.42 on 28 August 2026, per Form 4 filings. The 12 November 2026 close of $78.80 is above both prices.

Bear case

• Two quarters were restated. The 8-K shows the restatement raised first-half 2026 net sales by $10.7 million and diluted earnings per share by $0.09, so revenue was recognised earlier than first reported.
• A material weakness is disclosed. Management identified a material weakness in internal control over financial reporting, which the second-quarter 10-Q/A ties to cost assignment and BASX revenue recognition. The third-quarter 10-Q filed on 9 November 2026 warns it could hurt the stock price.
• Backlog fell again. Total backlog dropped 5.9% from $1,960.3 million at 30 June 2026, after a 7.4% sequential fall in the second quarter, per the 8-K and the 10 August 2026 release.
• Margin is still below a year earlier. Gross margin of 26.7% compares with 27.8% in the third quarter of 2025. Management attributes the gap to more BASX revenue from less mature, lower-utilization facilities.
• Analysts cut targets after the report. Oppenheimer's $105 target and Baird's $104 target, both set on 10 November 2026, are below the targets those firms held before the report.
• A very high 2027 comparison. Guidance of 72%–75% sales growth for 2026 makes any 2027 growth rate look slow even if demand holds.

Price setup

The shares closed at $54.42 on 5 November 2026, the 52-week closing low, then at $57.19 on 6 November 2026 and $62.87 on 9 November 2026. The session after the report, 10 November 2026, closed at $75.01, followed by $76.33 on 11 November 2026 and $78.80 on 12 November 2026.

The last close is above the 50-day average of $76.82 and below the 200-day average of $96.41, both from adjusted closes. The three-month change is −10.1%, against a quoted close of $87.80 on 14 August 2026. The shares closed above both insider purchase prices of $74.66 and $76.42 on 12 November 2026.

A hold above the 50-day average would keep the recovery intact. A return toward the 9 November 2026 close of $62.87 would erase most of the post-report move. The 200-day average and the 52-week high of $150.46 are the overhead references.

Institutional ownership was reported at 70.81% as of 26 August 2026, so fund buying and selling drive the price.

Catalysts ahead

• ~26 February 2027 (est.): Fourth-quarter and full-year 2026 results, with the annual report (date not announced). Shows whether full-year gross margin met the roughly 26% guide, whether backlog fell a third straight quarter, and whether the auditor's internal-control opinion confirms the material weakness.
• ~1 February 2027 (est.): Recast of AAON's financials into brand-based segments, which Investing.com reported management plans before the fourth-quarter report. Separate AAON-branded and BASX margins would show which business drives the gross margin gap against a year earlier.

What would change the view

A daily close below $56.00, just above the 5 November 2026 closing low of $54.42, would erase the post-report recovery and show the market rejecting a record quarter. A further restatement of 2026 results, or full-year 2026 gross margin reported below the roughly 26% guide, would also break the case.

The risks this note tracks, each with what would confirm it:

• The restatement and material weakness point to unreliable revenue recognition on BASX projects, and further corrections or audit findings could follow. Confirmed by: a further 10-Q/A or 8-K revising 2026 results, an auditor adverse opinion on internal controls in the annual report, or an SEC inquiry disclosed in a filing.
• Total backlog has fallen two quarters in a row, which could mean orders are slowing behind the revenue surge. Confirmed by: a third consecutive sequential decline in total backlog at the fourth-quarter report, or BASX backlog below the $1,355.2 million reported at 30 September 2026.
• Fourth-quarter implied sales and margin leave little room, and 2027 growth faces a very high 2026 comparison. Confirmed by: first 2027 revenue framing below mid-teens growth, or full-year 2026 gross margin below the roughly 26% guide.
• Rate-driven de-rating of long-duration AI-infrastructure shares can pull AAON down regardless of its own results. Confirmed by: AAON, Vertiv and Modine falling together on Treasury-yield moves with no company-specific news, as from 14 August to 21 August 2026.
• Sell-side targets are drifting lower on valuation even with a record quarter, which limits upside from the current price. Confirmed by: further target cuts from Oppenheimer, Baird or D.A. Davidson in the weeks after the report, or a downgrade from Outperform or Buy.

What it trades with

AAON trades with data-center infrastructure names. Vertiv and Modine moved with it on Treasury-yield swings from 14 August to 21 August 2026, with no company news. On 10 November 2026, a Benzinga market report headlined that a hot inflation reading pushed the 10-year Treasury yield to 5% and Nvidia fell 6%, while AAON rose on its own report, so the move was company-specific.

The legacy rooftop business links AAON to commercial construction and HVAC peers. BASX data-center sales of $397.2 million in the third quarter now drive most of the growth.