Aon led the positive momentum, reporting gains in both third-quarter profit and revenue. The brokerage benefited significantly from robust demand across its commercial risk and reinsurance segments, signaling stability in high-end financial services. Conversely, the mood soured for other major players. Banco Santander shares retreated after the Spanish lender disclosed a decline in net profit for the same period. Even steeper losses hit LPL Financial, which saw its stock drop following a lukewarm update on its pending acquisition of Commonwealth Financial Network, as investors recalibrated their outlook on the deal's potential impact.