Bitcoin holds near $78,500 as Japanese yen surge pressures risk assets
In brief
- Bitcoin held near $78,500 on September 8 as yen touched strongest level since February.
- ETF inflows of $905.4 million over September 3–4 provided price support amid macro headwinds.
- Cross-border yen borrowing reached $2.35 trillion, creating structural carry-trade unwinding risk.
- Futures-led rallies and large paper profits expose Bitcoin if Japanese funding costs rise further.
Yen strength squeezes carry trades
The yen reached 152.89 per dollar during Asian trading on September 8 before retreating to 154.14. This move matters because cross-border yen borrowing reached ¥360 trillion ($2.35 trillion) in March according to Jefferies analysis of Bank for International Settlements data. When the yen strengthens, investors who borrowed cheap yen to buy foreign assets face margin pressure.
A stronger yen can squeeze investors who borrowed it to buy foreign assets, potentially prompting sales across their portfolios.
Higher Japanese interest rates can narrow the strategy's return, making carry trades less attractive. That dynamic ripples across crypto and equities alike.
ETF inflows offer near-term support
Bitcoin's price near $78,500 on September 8 remained within the recent $77,200–$82,100 range. Spot Bitcoin ETF inflows have provided a cushion. Farside Investors recorded $730.8 million of net inflows into US spot Bitcoin ETFs on September 3, and another $174.6 million on September 4, totaling $905.4 million over two days.
In its September 2 report, Glassnode placed the short-term-holder cost basis near $71,000. That cushion means recent buyers still hold paper profits even if the price falls, reducing panic-sell risk in the near term.
Futures strength masks underlying fragility
The rally's composition raises questions about durability. Aggregate open interest rose from $25.2 billion to $27.5 billion during the September 3 session, signaling that futures traders are adding leverage into the move. Futures-led rallies, elevated exchange inventory and large paper profits leave that support open to a harder test. If Japanese funding costs continue rising or broader risk appetite falters, the market could face forced liquidations.
Bitfinex also pointed to expanding stablecoin supply and viewed the market as consolidating with an upside bias, suggesting demand remains intact for now. The next catalyst is the BOJ meeting on September 17–18, where any hawkish signal could accelerate yen appreciation and test Bitcoin's support levels.


