Japan's central bank announced it's unwinding its massive ETF portfolio—but here's the kicker: at the current pace, this liquidation could stretch beyond a hundred years. Sounds wild, right? The sheer scale of their holdings makes even a gradual exit seem like an eternity. This kind of monetary policy shift typically ripples through global financial markets, and traders watching macro trends are already paying attention to how institutional unwinds of this magnitude could impact asset valuations and market liquidity down the line.