BTC 15-minute increase of 0.86%: ETF capital inflows and whale buying pressure resonate to drive the price upward

From April 13, 2026, 13:45 to April 13, 2026, 14:00 (UTC), Bitcoin recorded a 15-minute return of +0.86%, with the price range between 70,945.9 and 71,699.9 USDT, and an amplitude of 1.06%. Market attention significantly increased, with spot and derivatives trading volumes expanding in tandem, short-term volatility intensifying, and institutional and large capital participation high. First, the main driver of this anomaly is the continuous net inflow of ETF funds. This week, BTC ETF net inflows reached $385.9 million, with institutional funds significantly boosting spot buying, and liquidity tightness amplifying price sensitivity. ETF demand absorbs over 1,200 BTC daily, far exceeding miners’ daily output of 450 BTC, forming a structural supply-demand gap, causing prices to rise sharply driven by capital in the short term. Second, whale fund behavior has become an important resonance factor. On-chain data shows whales holding 10,000–100,000 BTC have accumulated 70,000 BTC this month, with a total inflow of about $460 million, some funds moving into cold wallets, and exchange balances dropping to 2.3 million BTC, creating a market environment with fragile liquidity. Meanwhile, the Whale Ratio has reached a 10-month high, with large funds short-term concentrated inflows into exchanges, some funds used for arbitrage or profit-taking, further amplifying volatility. In the derivatives market, CME Bitcoin futures open interest has reached 17,764 contracts, with a positive funding rate (+0.51%, annualized 70.2%), indicating increased institutional risk appetite, with futures and spot prices moving in resonance upward. Long-term holders’ positions remain stable, with an MVRV ratio of only 1.8, showing no signs of extreme overheating, indirectly reinforcing the short-term impact of capital inflows on prices. Currently, BTC market liquidity is fragile, and prices are highly sensitive to capital movements. Key focus should be on ETF fund flows, whale address behavior, exchange balances, and derivatives positions, as short-term volatility risks increase. If funds experience net outflows or large liquidations, downside risk may intensify at any time. It is recommended that users closely monitor key support levels, on-chain capital flows, and macro news to stay updated on the latest market dynamics.