BTC rises 0.61% in 15 minutes: Exchange net outflows surge while spot buying demand resonates to drive gains

From 17:45 to 18:00 (UTC) on March 20, 2026, Bitcoin recorded a +0.61% return, with the price ranging from 69,568.5 to 70,022.1 USDT, and a 15-minute volatility of 0.65%. During this movement, market attention significantly increased, spot trading activity was lively, buy orders pushed prices higher, and volatility was notably above the daily average.

The main driver of this movement was the net outflow from exchanges reaching a nearly one-year high, with a peak of 32,000 BTC on that day, and a total net outflow of 47,700 BTC over the past week, continuously reducing the available circulating supply in the market. Meanwhile, inflows of stablecoins into exchanges increased on-chain, providing ample buying funds for the spot market, and active buy orders drove the spot price upward.

Additionally, the order book depth on major trading platforms declined during the movement window, while spot trading volume increased by 18% week-over-week, tightening short-term liquidity and amplifying the impact of buy orders. Some large holders are still locking funds in self-custody wallets without significant reduction, which market participants interpret as a bullish signal, further boosting optimism. At the same time, the Federal Reserve maintained dovish expectations with no major external negative news, and risk appetite marginally improved, providing support for the crypto market. Multiple factors resonated to strengthen short-term upward momentum.

In terms of risks, caution is needed regarding large BTC inflows back into exchanges or major capital withdrawals that could bring selling pressure; spot market liquidity remains tight, and if buy-side momentum weakens, short-term pullback risks increase. Macroeconomic policy changes and global emergencies also pose potential uncertainties. Monitoring on-chain net flows, exchange holdings, and key price levels is essential, and traders should stay alert to short-term volatility. For more updates, please stay tuned.