Shares of Ciena (NYSE:CIEN) experienced a 2% increase intra-day today after the company reported fourth-quarter results that surpassed expectations, attributed to strong performance from cloud customers.

Ciena's revenue saw a 21% rise, reaching $1.13 billion and surpassing the anticipated $1.1 billion. The adjusted earnings per share (EPS) were $0.75, exceeding the expected $0.69 and showing an increase from $0.61 in the previous year.

Gary Smith, President and CEO of Ciena, remarked on the company's performance stating that the fiscal fourth quarter exhibited strong results, largely driven by increasing demand from cloud provider customers. This year, the company achieved a significant 21% growth in revenue, greatly expanding its market share and reinforcing its leadership position in the industry. As Ciena continues to pursue its strategy of enhancing its market leadership in optical solutions and expanding its presence in the routing and switching sectors, it expects to maintain a trajectory of revenue growth and further gains in market share.