MacroGlide on Instagram: "High-frequency trading (HFT) has transformed financial markets in ways previously unimaginable — from speeds measured in milliseconds to a dominant share of trading volume and lasting structural impacts. In U.S. equities, HFT now accounts for approximately 50% of trading volume, up from less than 10% in the early 2000s. Studies show HFT has narrowed bid‐ask spreads and enhanced price discovery, but they also warn of increased fragility: algorithms withdrawing liquidity