El comportamiento de los «tiburones» de Bitcoin y el sentimiento del mercado: ¿estamos en una fase de distribución o de acumulación?

The Bitcoin market in late 2025 is at a pivotal juncture, with conflicting signals emerging from whale activity, institutional demand, and on-chain metrics. Investors and analysts are grappling with a critical question: Is Bitcoin transitioning into a new accumulation phase, or are we witnessing a distribution-driven correction? To answer this, we must dissect the interplay between whale behavior, institutional investor trends, and on-chain analytics.

Whale Behavior: A Shift in Dynamics

Bitcoin whales and sharks have resumed accumulation in early December 2025, netting 47,584 BTC after offloading 113,070 BTC from October to November, signaling a reversal in their behavior and a shift in market sentiment. This accumulation is concentrated among mid-tier holders (10-10,000 BTC) and Mega Whales (10K+ BTC), with the latter adding 123,173 BTC and Sharks (100-1K BTC) accumulating 26,193 BTC. Smaller cohorts, however, continue to distribute their holdings.

The resurgence of whale accumulation is reshaping Bitcoin's market structure. Approximately 50% of Bitcoin's realized capital now comes from new whale buyers, reflecting growing institutional and corporate demand at significantly higher prices. These new whales are stabilizing price action by reducing sell-side liquidity and reinforcing long-term valuation confidence. However, retail investors' persistent dip-buying has created a "blue zone" where both whales and retail are net buyers but not driving explosive price action. Historical patterns suggest that a shift in retail sentiment from buying to selling could unlock stronger bullish momentum.

Institutional Investor Behavior: A Structural Shift

Bitcoin is undergoing a structural shift driven by institutional and large investor accumulation. New whale buyers-primarily institutional investors now account for nearly 50% of Bitcoin's realized capital, a stark departure from previous cycles where early long-term holders accumulated at lower prices. These investors are shaping the market by absorbing supply during corrections and reinforcing price support zones, reducing panic selling risks.

Institutional demand is further evidenced by Q3 2025 SEC 13F filings, which show investment advisors holding 185,000 BTC equivalent exposure, accounting for 57% of total 13F-reported Bitcoin assets. This marks a doubling of holdings compared to earlier periods, driven by client demand and Bitcoin's normalization in diversified portfolios. Notable institutional players like Harvard's endowment and the Abu Dhabi Investment Council (ADIC) have also increased exposure, with ADIC citing Bitcoin as a store-of-value asset akin to gold. U.S. Bitcoin ETF assets under management (AUM) rose 13% quarter-over-quarter, aligning with 13F holdings growth.

On-Chain Analytics: Contradictory Signals

On-chain metrics paint a nuanced picture. The Accumulation/Distribution line has trended upward, while exchange reserves have declined, reducing available supply on spot markets. However, the November 2025 correction-triggered by a sharp price drop from $126,000 to $80,000-revealed heightened market stress. The MVRV ratio fell to 2.15, indicating that while the average holder still holds unrealized profits, the metric often precedes distribution phases. The NVT ratio also suggests Bitcoin is overvalued relative to its transaction volume, a pattern observed before previous bear markets.

Whale accumulation and institutional buying have stabilized prices around $89.5K, but on-chain data highlights a potential imbalance in volume and a weakening fifth Elliott Wave, reinforcing bearish narratives. Meanwhile, mid-tier institutional investors accumulated 54,000 BTC in a single week during Q4 2025, signaling long-term confidence.

Market Sentiment and Price Dynamics

The interplay between whale and retail behavior has created a "blue zone" where both groups are net buyers but lack the momentum to drive explosive price action. Retail dip-buying tempers aggressive price moves, while institutional absorption of supply has formed higher lows since late November. However, the market remains vulnerable to a shift in retail sentiment. If retail investors transition from buying to selling-a historical precursor to bullish momentum-Bitcoin could break out of its consolidation phase. Regulatory developments, such as U.S. spot BTC ETF approvals and the EU's MiCA framework, have further entrenched institutional participation. With 86% of institutional investors already exposed to digital assets or planning allocations in 2025, Bitcoin's institutional adoption is accelerating.

Conclusion: Accumulation with Caution

Bitcoin's current phase appears to be a hybrid of accumulation and consolidation. Whale and institutional buying has stabilized prices and reduced sell-side liquidity, but on-chain metrics like NVT and MVRV suggest overvaluation risks. The market's next move will likely depend on whether retail sentiment shifts toward profit-taking or if institutional demand continues to absorb supply. For now, the data supports a bullish outlook, but investors must remain vigilant for signs of a broader correction.