Here's why the IAG share price jumped ~40% in 2025

The IAG share price had a strong performance in 2025, continuing a trend that began in 2024, when it was one of the best-performing companies in the FTSE 100 Index. It jumped by ~40% this year, pushing its market capitalization to over £18 billion. IAG stock outperformed other top airlines this year, with Delta rising by 17% and United Airlines soaring by 8.40%. The closely-watched US Global Jets ETF (JET) was up by 10%. IAG share price has also done well as the management has worked to boost its balance sh ...