The Magnificent Seven have driven historic gains and pushed U.S. equity concentration to elevated levels, but relative strength data now indicates that leadership is narrowing as momentum becomes more selective. Nearly $2 trillion in market value has already come off their recent highs, underscoring how quickly concentration risk can surface when dominance begins to fade. Within that group, NVIDIA remains the apex performer, yet its technical positioning, clustered support at $179.37, and overhead resistance at $210.16 frame a critical inflection point that contrasts sharply with the broad diversification offered by ACWX, highlighting the growing tradeoff between single-stock momentum and global risk management.