Bitcoin erased weekend gains Monday as geopolitical tensions flared and oil prices spiked. The pullback came after Iran signaled no immediate reopening of the Strait of Hormuz, a critical shipping chokepoint that handles roughly one-third of global seaborne oil trade. Crude surged 5 percent on the news, dragging equities lower and pulling Bitcoin along with traditional markets.

The correlation between Bitcoin and stocks tightened as macro headwinds reasserted themselves. Institutional investors had pushed BTC higher over the weekend, but Monday's risk-off sentiment reversed those flows. Oil price volatility typically signals broader economic uncertainty, and markets treated the Hormuz developments as a fresh geopolitical flashpoint that could disrupt energy supplies and inflation expectations.

Despite the intraday weakness, on-chain data showed institutional buyers remained active. Analysis highlighted "exceptionally strong" BTC inflows from institutional wallets, suggesting conviction persisted below the surface. Large holders continued accumulating even as spot prices retreated, signaling a divergence between retail selling pressure and whale accumulation patterns.

The move underscores Bitcoin's current dependence on macro risk sentiment. Rather than trading as a safe haven during geopolitical stress, BTC remains correlated with equity volatility and real asset concerns like oil. The Hormuz situation carried genuine economic weight. Any sustained closure would tighten energy markets, reignite inflation fears, and potentially force central banks into policy shifts that crypto markets have priced in differently.

Institutional inflows provide a floor beneath spot prices, but they cannot insulate Bitcoin from broader market shocks tied to energy costs or economic growth. The weekend rally demonstrated momentum trading still drives significant price action. The Monday reversal showed how quickly macro headlines flip sentiment.

For now, Bitcoin trades between institutional support and macro headwinds. Geopolitical resolution around Hormuz