Bitcoin's "Four-Year Cycle" has long been a common topic in the crypto world—halving → sharp rise → peak → 80%+ crash into a bear market, repeating over and over. But the trend after 2025 breaks this classic rhythm. Instead of a parabolic rally and crash following the halving, we see repeated oscillations at high levels followed by gentle recovery. What does this indicate? Bitcoin's growth model is undergoing a fundamental shift, evolving from a cyclical speculative asset to a steadily appreciating asset.

Why is this happening? The rise of institutional investors is the first key factor. In 2025, net inflows into spot ETFs exceeded $23 billion, and in 2026, an additional $15-40 billion is expected. More importantly, these institutional investors are not here for leverage—long-term institutional investors like pension funds and sovereign wealth funds now account for over 40%. They buy and hold, avoiding chasing highs or selling in panic. On the supply side, the new daily mining output of Bitcoin accounts for only 0.8% of the market trading volume, and a single ETF's daily inflow can absorb that easily. The old logic of "supply shocks causing parabolic rises followed by liquidations" has become completely invalid.

But the deeper driving force comes from macro liquidity. Data shows that Bitcoin's correlation with global M2 and the Federal Reserve's balance sheet exceeds 0.78, far surpassing the influence of halving events. In 2025, the Fed begins rate cuts and ends quantitative tightening; in 2026, easing expectations continue, and QE may restart, providing continuous support to the entire risk asset market. From this perspective, the so-called four-year cycle is essentially a superposition of political cycles and liquidity cycles, with the liquidity cycle now extended to about five years.

Improved regulatory environments further reinforce this trend. New legislative frameworks are advancing, regulatory pathways are becoming clearer, and institutional concerns about risk are diminishing. Coupled with national strategic reserves and strengthened pro-cryptocurrency policies, Bitcoin is shifting from a purely speculative asset to a macro hedge, akin to digital gold.

Finally, the evolution of market structure is evident. Retail investor share continues to decline, with long-term institutional holdings becoming mainstream. On-chain data shows long-term holders are net accumulating, and exchange balances are decreasing. This means FOMO-driven surges and panic selling are weakening. The market is maturing, volatility is converging, and growth is becoming more stable.