Bitcoin Price Defends $81.5K ETF Cost Basis Despite Rising Outflows

More strikingly, bitcoin has defended the level despite $681 million in net U.S. spot ETF outflows last week and another $65 million outflow on Monday. If support eventually breaks, then Glassnode points to the true market mean near $77,500 as the next major level.

ETF Cost Basis Becomes Bitcoin’s New Line in the Sand

The resilience around $81,500 is notable because ETF flows have recently been working against bitcoin rather than supporting it. Vugar Usi Zade, CEO of MEXC, argued that institutional capital has nevertheless created a stronger structural floor.

“Bitcoin is moving into a phase of institutional maturity, where the $80,000 mark has become the average cost for positions held by spot ETFs and custodial services,” he said.

If major funds accumulated heavily around this zone, then declines toward $80,000 may increasingly attract buyers rather than trigger panic.

Bitcoin Is Also Outrunning Broader Liquidity

Institutional positioning is not the only constructive signal.

Bitcoin Magazine analysis comparing $BTC with Federal Reserve net liquidity noted that bitcoin has recently outperformed the broader liquidity backdrop, even while maintaining a meaningful longer-term relationship with it. That is important because bitcoin has historically been highly sensitive to liquidity conditions.

Recent performance suggests investor demand may be contributing more to bitcoin’s price action, rather than simply rising and falling with shifts in macro liquidity. Still, $BTC remains exposed to broader financial conditions. Liquidity matters, even if it is no longer the only force driving the market.

$77.5K Becomes the Risk Level to Watch

Two successful defenses of the ETF cost basis are encouraging. Defending it while ETFs are recording net redemptions is an even stronger test. However, the $81,500 mark is not guaranteed to hold. Continued ETF withdrawals could eventually overwhelm underlying spot demand.

For traders, the setup is increasingly clear.

Bitcoin’s price holding above $81,500 despite persistent outflows would reinforce the argument that institutional positioning has created a new $BTC floor. Losing it would quickly shift attention toward $77,500.

The key question is no longer whether ETFs can push bitcoin higher. It is whether bitcoin can hold the ETF cost basis while money is leaving the funds.