ADTRAN Holdings (NASDAQ: ADTN) shares fell approximately 15% on July 22, 2026 after the company announced preliminary unaudited Q2 2026 revenue of $280 million to $282 million and non-GAAP operating margin of about 3.5% to 4.0%, both below its guidance of $283 million to $303 million in revenue and 5% to 9% non-GAAP operating margin. If this decline hit your ADTN investment, you are encouraged to submit your information now . You may also contact Joseph E. Levi, Esq. at jlevi@levikorsinsky.com or (212) 363-7500.
On the Q1 2026 call, CFO Timothy Santo stated: "We expect revenue to be between $283 million and $303 million, and non-GAAP operating margin within a range of 5% to 9%." The preliminary figures placed revenue $1 million to $23 million below that range and operating margin at least 100 basis points below the bottom of the stated range.
An investor presentation attached to a May 5, 2026 Form 8-K reported revenue of $286.1 million, up 15.5% year-over-year and within prior guidance of $275 million to $295 million. The preliminary Q2 revenue range of $280 million to $282 million was approximately $4.1 million to $6.1 million below analyst consensus estimate. Levi & Korsinsky is reviewing losses suffered by investors after these figures reached the market.
If ADTN losses affected your account, find out if you might qualify to recover losses . You may also contact Joseph E. Levi, Esq. at (212) 363-7500.
Levi & Korsinsky, LLP -- Top 50 securities litigation firm (ISS, seven consecutive years). Over 70 professionals. Hundreds of millions recovered.
Frequently Asked Questions About the ADTN Investigation
Q: Which ADTRAN statements are being reviewed in the ADTN investigation? A: The investigation concerns ADTRAN Holdings' revenue and operating margin statements, including Q2 2026 guidance of $283 million to $303 million in revenue and 5% to 9% non-GAAP operating margin, before preliminary Q2 figures of $280 million to $282 million and 3.5% to 4.0%.
Q: How much did ADTN stock drop? A: ADTN shares declined approximately 15% after ADTRAN reported preliminary unaudited Q2 2026 revenue and operating margin below the Company's stated ranges.
Q: Who is eligible to participate in the ADTN investigation? A: Investors who purchased ADTN stock or securities and suffered financial losses may be eligible. Eligibility is based on purchase date and documented losses -- not on whether you still hold the shares.
Q: What do ADTN investors need to do right now? A: Gather brokerage records including purchase dates, share quantities, and prices paid. Contact Levi & Korsinsky for a free, no-obligation evaluation at jlevi@levikorsinsky.com or (212) 363-7500. No immediate action is required to remain eligible to participate in the investigation.
Q: What documents do I need to participate? A: Brokerage statements or trade confirmations showing purchase dates, share quantities, prices paid, and any subsequent sale dates and prices.
Q: What if I already sold my ADTN shares -- can I still recover losses? A: Yes. Eligibility is based on when you purchased, not whether you still hold the shares. Investors who bought ADTN and sold at a loss may still participate in the investigation.
Q: What does it cost me to participate? A: There is no upfront cost to participate. Securities investigations and any resulting investor matters are generally handled on a contingency basis. No upfront fees, no retainer, and no out-of-pocket costs.
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View source version on businesswire.com: https://www.businesswire.com/news/home/20260728099741/en/
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