Why is Atkore (ATKR) stock up today?

Atkore shares jumped 28.12% to $93.47 today — their day range was a tight $93.30 to $93.60, indicating the stock quickly locked in near the deal price — after the company announced it would be acquired for $95 per share in cash. Under the terms of the transaction, Atkore shareholders will receive $95 for each share of common stock they hold. The offer price sets a hard ceiling just above the current trading level, which explains both the magnitude of the surge and the narrow trading range: the stock rapidly converged on the announced buyout price.

The transaction is expected to be funded with a mix of debt and equity and is anticipated to close by the end of this year. Separately, Atkore also reported its latest quarterly results alongside the deal announcement. The company posted earnings per share of $1.92, topping analyst estimates of approximately $1.54 — a beat of roughly 25% — which may have provided additional support to the stock alongside the acquisition news.

The broader market provided a constructive backdrop, with the S&P 500 rising 1.48% and the QQQ (Nasdaq-100 ETF) up 1.75% on the day, though the scale of Atkore's move far exceeded the general market tailwind and was clearly driven by the acquisition announcement. Atkore, an electrical safety products manufacturer with a market capitalization of approximately $3.16 billion, had previously seen its stock pressured by declining profit margins and weak guidance.

With the $95-per-share deal price publicly announced, Atkore's stock is now trading as a merger arbitrage situation — sitting just below the offered price while the market prices in the probability and timing of deal closure. The transaction is expected to close by year-end, pending customary approvals.