Company-Specific Catalysts Drive Gains for American Outdoor Brands (NASDAQ: AOUT), Quanex Building Products (NYSE: NX), and bioAffinity Technologies (NASDAQ: BIAF)

• American Outdoor Brands (NASDAQ: AOUT) surged after reporting better-than-expected first-quarter fiscal 2027 results and raising its profitability outlook.
• Quanex Building Products (NYSE: NX) gained after reporting higher sales and adjusted earnings, supported by favorable pricing.
• bioAffinity Technologies (NASDAQ: BIAF) attracted investor attention after announcing an upcoming corporate presentation covering its lung-cancer diagnostic business.

Despite a broader market decline that saw the Nasdaq Composite fall approximately 0.29%, several companies recorded substantial gains. The advances were driven primarily by earnings reports, improved financial guidance, and company-specific announcements.

American Outdoor Brands (NASDAQ: AOUT) was among the day’s leading gainers, rising 44.86% to close at $14.48. The shares traded between $12.24 and $14.65 during the session.

The rally followed strong first-quarter fiscal 2027 results from American Outdoor Brands (NASDAQ: AOUT). Net sales increased 25.4% year over year to $37.3 million, although the company noted that the prior-year comparison was affected by approximately $6 million of retailer orders that had been accelerated into an earlier quarter. Adjusting for that timing effect, sales increased approximately 4.3%.

American Outdoor Brands (NASDAQ: AOUT) reported non-GAAP earnings of $0.03 per share, compared with a non-GAAP loss of $0.26 per share a year earlier. Gross margin improved to 53.0% from 46.7%, while adjusted EBITDA reached $1.2 million, compared with a loss of $3.1 million in the prior-year quarter. The company also raised its fiscal 2027 adjusted EBITDA forecast to $14.5 million–$17.5 million.

Quanex Building Products (NYSE: NX) climbed 21.96% to close at $22.93, after trading between $19.19 and $23.20. The company supplies components and engineered products used in windows, doors, and other building applications.

Third-quarter net sales at Quanex Building Products (NYSE: NX) increased 1.3% year over year to $501.8 million. The increase was driven mainly by favorable pricing, partially offset by reimbursements to customers related to tariffs imposed under the International Emergency Economic Powers Act. Adjusted diluted EPS rose to $0.79 from $0.69, while adjusted net income increased to $36.0 million from $31.6 million.

bioAffinity Technologies (NASDAQ: BIAF) rose 18.94% to close at $15.27. The highly volatile stock traded between $10.90 and $20.08 during the session.

The gain in bioAffinity Technologies (NASDAQ: BIAF) followed the company’s announcement that President and CEO Maria Zannes will present at the H.C. Wainwright 28th Annual Global Investment Conference, scheduled for September 14–16, 2026. The presentation will cover strategic milestones, commercial adoption of the company’s CyPath Lung diagnostic test, and progress involving its diagnostic and therapeutic technology platform. However, the announcement’s direct contribution to the sharp share-price increase cannot be established conclusively.

Leveraged ETFs tied to SK hynix (NASDAQ: SKHY) also performed strongly. The Direxion Daily SK Hynix Bull 2X ETF (NYSEARCA: SKHL) gained 16.42%, while the T-REX 2X Long SKHY Daily Target ETF (CBOE: HYNX)increased 16.67%. Both funds seek to deliver approximately 200% of the daily performance of SK hynix (NASDAQ: SKHY) before fees and expenses.

In summary, the gains in American Outdoor Brands (NASDAQ: AOUT) and Quanex Building Products (NYSE: NX) followed stronger financial results and improved profitability. Meanwhile, the advance in bioAffinity Technologies (NASDAQ: BIAF) coincided with its upcoming corporate presentation, while the leveraged ETF gains reflected amplified exposure to SK hynix (NASDAQ: SKHY).