... Impacts to the Stock Market On May 13, 2025, a rare and extremely powerful X1.2 class solar flare was recorded, lasting approximately 19 minutes. According to NOAA classification, X-class flares are the strongest solar flares, capable of inducing severe geomagnetic storms and electronic disruptions. This type of flare signifies the release of an immense amount of charged particles and X-ray radiation, which, upon reaching Earth’s vicinity, can significantly disrupt technology operations and affect human health....