#保持SAFU From the perspective of asset classes, mainstream coins, altcoins, stablecoins, NFTs, and derivatives have differentiated risk-return curves; from the market cycle perspective, the rotation effect between Bitcoin and altcoins is significant, typically dominated by Bitcoin in the early bull market and later taken over by small and mid-cap tokens; from the perspective of participants, institutional funds prefer highly liquid mainstream assets, while retail investors tend to favor high-volatility small-cap projects. This structural differentiation requires investors to establish a three-dimensional allocation framework across categories, cycles, and participants.