Bitcoin (BTC) Defies 3.7% Yen Surge, Holds $79K

Yen Shock Meets a Firm BTC

Bitcoin (BTC) held firm above the $79,000 mark on Monday even as the Japanese yen delivered its sharpest three-day advance in years, a stress test that broke crypto markets in 2024. USD/JPY slid from 160.39 late last week to 154.50 by Monday — a 3.7% appreciation of the yen across just three trading sessions. In August 2024, a comparable yen spike forced a mass unwind of the carry trade, the strategy of borrowing near-zero-yield yen to fund risk-asset purchases, and dragged BTC and ETH lower by as much as 20% within days. Bitcoin's 2026 price action tells a different story: the asset absorbed the shock without a single forced flush below $79,000, in what exchange-flow data describe as the first carry-trade jolt the market has withstood rather than amplified.

$986.9M ETF Bid vs Fed Risk

Underpinning that resilience, US-listed spot Bitcoin ETF inflows reached $986.9 million in the week ending September 4, lifting the three-week total to roughly $3.8 billion. CoinEx chief analyst Jeff Ko expects compression before the September 15–16 FOMC meeting: a tight range capped around $82,000 with support at $78,000–$79,000, and a directional resolution only once the Fed is out of the way. Bitfinex analysts read the structure as consolidation with an upside bias, placing the range floor at $77,200 and flagging $80,500 as the level BTC must clear before the heavier supply near $82,000. Markets assign roughly 66% odds — per CME FedWatch — to a 25-basis-point hike from the 3.50%–3.75% target range, and the two-year Treasury yield sits above 4.34%.

Oil Up, Asia Rallies

The macro backdrop is pulling in opposite directions. Crude jumped after the weekend exchange of strikes between the United States and Iran: Brent futures rose 1.5% to $97.73 per barrel, briefly touching $97.93 — the highest since July 23 — while WTI gained 1.8% to $93.10. Equities diverged by region, with European indices essentially flat — the Stoxx Europe 600 closed at 649.90 — while Japan's Nikkei 225 climbed 2.12% and Korea's Kospi surged 4.61%. BTC itself slipped roughly 1% back below $80,000 after banking more than 20% of gains across August, has twice failed to hold $82,000 in the past two weeks, and trades beneath its 50-week moving average near $81,000 — a level it lost back in May.

Rotation Leaks Into Altcoins

With Bitcoin analysis stuck in a sideways band, capital is leaking down the risk curve. Analyst Polaris XBT argued in a September 7 chart breakdown that BTC's stall near $80,000 while the "OTHERS" altcoin market cap diverges upward recalls the capital-rotation phases of earlier cycles. The session data back him up: Solana added 2.6%, Avalanche 4.3%, and Celestia more than 20% intraday while BTC went nowhere. Confirmation, however, is still missing — the 90-day Altcoin Season Index stood at 39 out of 100 on September 7, well short of the 75 threshold that defines a broad altcoin market advance, and Bitcoin dominance held near 59.2%.

September 7 chart breakdownhttps://x.com/polaris_xbt/status/2096957788731621666

Wedson's $38,400 Map

On the bear tail, Alphractal CEO João Wedson revisited the long-term downside in a September 7 on-chain study. His Balanced Price metric — a cost-basis gauge adjusted for the spending behavior of long-dormant coins — sits at approximately $38,400. The intervals between Bitcoin's major interactions with that level have stretched from 732 days to 1,120, 1,200 and now about 1,420 days, with roughly 1,400 days elapsed since the last touch. Crucially, the time spent below the level has collapsed each cycle — from weeks, to around 20 days, to a single day in 2022. Wedson frames the area near $40,000 as a conditional capitulation zone, not a price forecast. Readers tracking the market in real time can follow live spot and futures prices on Gate.

September 7 on-chain studyhttps://x.com/joao_wedson/status/2096982825010409909

The $81,600 Gate

COINOTAG's proprietary 42-indicator composite S/R scoring engine pins spot at $79,343.98, down 0.58% over 24 hours, sitting marginally above the $79,282 pivot it rates at 65/100 on the confluence of Fibo 0.114, the Ichimoku Tenkan and a MACD cross. The decisive ceiling is $81,599.83, scored 86/100 (STRONG) via R3, Donchian Upper and swing-high confluence; below, $77,500.70 carries 68/100 and $74,131.55 a stronger 74/100 on Ichimoku Kijun, HVN and BB Lower support. RSI at 62.90 with a bearish MACD signal inside a sideways trend keeps both paths open. Derivatives look balanced-to-long: funding at 0.0014%, $15.62 billion in open interest and a 1.27 long/short account ratio, while the Fear & Greed Index reads 71 (Greed). A daily close through $81,600 breaks the range; losing $77,500 opens $74,131, below which the range-bound thesis invalidates.