Why is Telecom Italia stock rallying today?

Telecom Italia shares advanced 2.2% to €7.635 in Milan trading after Poste Italiane improved its public tender and share-exchange offer (OPAS) for TIM, increasing the cash component to €1.97 per share from €1.67 while leaving the share-exchange element unchanged at 0.218 Poste shares per TIM share, bringing the total consideration to roughly €11.3 billion.

The revised terms closed the gap between TIM’s market price and the offer’s implied value, a spread that had widened to nearly 3% in the prior session and prompted a wave of arbitrage-driven buying at the opening bell.

Poste Italiane simultaneously removed the 66.67% minimum acceptance threshold that had earlier generated deal-failure risk, and reopened the acceptance window from September 21 to September 25, giving shareholders extra time to tender their shares.

CEO Pietro Labriola and other senior executives tendered their own shares, a move that highlighted the board’s endorsement of the revised offer and further reassured investors about deal certainty.

The rise comes one session after TIM fell sharply when initial tender acceptances stood at only around 4.9% of the company’s capital, underscoring that today’s gain is a direct reversal of that company-specific disappointment rather than a reflection of broader market strength.

Milan’s FTSE MIB closed only marginally higher on Monday, and U.S. markets were shut for Labor Day, so Italy’s telecom sector drew no meaningful macro support. Moody’s also placed TIM’s Ba1 credit ratings on review for a potential upgrade of up to two notches following the OPAS announcement, adding a credit-quality tailwind to the equity story.

Taken together, the higher cash offer, reduced conditionality, extended acceptance window, and insider participation gave investors enough confidence to bid TIM shares back toward the offer’s implied value, making the Poste Italiane bid revision the clear and dominant driver of today’s move.

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