Cellnex stock gains 2.84 percent as BlackRock raises its stake

Cellnex stock (ISIN ES0105066007) closed at EUR 25.71 on BME on September 21, 2026, gaining 2.84 percent from the previous close. The move followed news that BlackRock had increased its Cellnex holding to 6.398 percent, while first-half revenue reached EUR 2,209 million.

BlackRock increases its holding

According to Bolsamania on September 22, 2026, BlackRock raised its Cellnex participation from 5.001 percent to 6.398 percent. The investment manager controlled 42.49 million shares valued at approximately EUR 1,094 million, marking its largest position in the Spanish tower operator since May 2017.

The ownership change provided a concrete market signal alongside the price reaction. Cellnex shares added EUR 0.71 on September 21, 2026, while the IBEX 35 rose 1.08 percent, making Cellnex one of the index's strongest performers that session.

First-half figures set the base

According to Alicante Plaza on September 22, 2026, Cellnex reported first-half revenue of EUR 2,209 million, up 2.9 percent year over year. Consolidated reported revenue was EUR 1,994 million, an increase of 2.7 percent, while EBITDA after leases rose 7.7 percent to EUR 1,231 million.

The operating mix also matters for the next valuation debate. Tower revenue reached EUR 1,625 million in the first half, with organic growth of 5.2 percent, while the company reduced its loss by 15.6 percent to EUR 97 million. The figures show stronger operating earnings alongside continuing reported net losses.

November results provide the checkpoint

Cellnex is scheduled to publish its third-quarter accounts on November 5, 2026, according to Alicante Plaza. That release will give the market a new test of the 2026 targets, which include revenue of EUR 4,075 million to EUR 4,175 million and adjusted EBITDA of EUR 3,425 million to EUR 3,525 million.

The current numbers therefore combine an ownership increase, positive operating growth and a still negative bottom line. For investors, the November reporting date is the next concrete point at which Cellnex can demonstrate whether tower growth and cash generation are tracking its full-year ranges.

Cellnex stock closes at EUR 25.71

Cellnex stock closed at EUR 25.71 on BME on September 21, 2026, up 2.84 percent from the prior close. Cellnex had a market capitalization of EUR 18.2 billion as of September 21, 2026.

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