Fox Corporation received an analyst upgrade on Tuesday, with a Wall Street firm lifting its rating to 'buy.' The move targets what the analyst describes as an overreaction to recent speculation that Fox might acquire streaming platform Roku.

The upgrade directly follows a sharp drop in Fox shares triggered by the Roku acquisition rumors. The analyst believes the selloff was excessive, arguing the strategic rationale for such a deal remains unconfirmed and the negative impact on Fox's balance sheet has been overstated.

While Fox stock had declined on the M&A chatter, the upgrade suggests the underlying business fundamentals remain intact. The analyst's call implies the current valuation presents a buying opportunity for investors willing to look past the acquisition noise.

However, the upgrade rests on the assumption that a Roku deal will not materialize or will be structured favorably. Should Fox proceed with an acquisition at a premium, the stock could face renewed pressure, and debt levels may rise accordingly.