India, July 22 -- Shares of ADTRAN Holdings, Inc. (ADTN) were losing around 13% in the pre-market activity on the Nasdaq, after the communications technology company Wednesday said it expecting a loss in the second quarter, and revenues to be be lower than the earlier given guidance.

The company attributed the impact mainly to a project delay from a single customer. ADTRAN also issued third-quarter outlook.

For the second quarter, net loss attributable to the company's common stockholders is expected to be in a range of $9.9 million to $11.0 million, or loss per share to be between $0.12 to $0.14.

It also expects adjusted net income attributable to be between $2.1 million to $4.3 million, or $0.03 to $0.05 per share.

The company now exp...