Bitcoin (BTC) Hits 8-Month High Above $87K in Short-Squeeze Rally

8-Month High Above $87K

Bitcoin (BTC) punched above $87,000 in Monday trading, printing its highest level in roughly eight months before profit-taking trimmed the advance. After clearing the zone intraday, the price eased to $85,937, still up 5.27% on CoinGecko-tracked pricing. The move landed despite a two-sided headwind — a Federal Reserve rate-hike shock and the US Congress's failure to advance its crypto market-structure bill. Institutional demand underpinned the leg higher: strategic bitcoin reserve operator Strategy disclosed a purchase of 950 Bitcoin (BTC) for $75.7 million between September 14-20, lifting cumulative holdings to 846,000 BTC, while US spot ETFs — after shedding about $746 million on Tuesday and Wednesday — flipped to a $592.5 million two-day inflow, pushing the average ETF holder's cost basis near $82,200 and back into profit, a dynamic behind our US spot Bitcoin ETF inflows coverage.

Short Squeeze Clears $844 Million

The engine behind the spike was a violent liquidation cascade. Aggregate market data shows about 137,183 traders were liquidated over the past 24 hours for a combined $1.06 billion — and shorts absorbed the bulk: roughly $844.3 million, or about 80%, were bearish positions, versus $213 million in longs. Bitcoin alone accounted for some $612.6 million, close to 90% of it short positions, with Ethereum ($184.4 million), Solana ($38.8 million) and XRP ($28.3 million) also clearing. The single largest wipeout was a whale-sized Bitcoin (BTC) position worth nearly $21 million on Hyperliquid. A weekly close above the 50-week moving average — the first in 45 weeks, historically read as a bear-market-bottom marker — added fuel to the squeeze.

Market Breadth and Dominance

Session pricing as of 16:00 KST put BTC at $85,368.87, up 4.59%, a move trackable on the BTC/USD chart, with total crypto market cap near $2.899 trillion. Bitcoin dominance widened 0.59 percentage points to 59.13%, signaling capital concentrating in the leading asset, while Ethereum's share slipped 0.11 points to 11.49% alongside its 2.55% gain to $2,730.29. Altcoin gains were broad — Dogecoin up 12.13%, XRP up 5.95%, Solana up 4.03%. Trading intensity confirmed the risk-on turn: 24-hour derivatives volume jumped 79.73% to roughly $1.27 trillion, and stablecoin turnover rose 97.99% to $153.19 billion, indicating short-term demand and sidelined capital moving back to work.

Leverage Rebuilds Above $82K

The $82,000 break was the pivot — a level that had capped several prior advances — and the subsequent reclaim of the 50-week moving average sealed it. Roughly $2 billion in new leveraged positions has been added since the breakout, with open interest expanding faster than price, leaving the next leg acutely sensitive to flow direction. Wintermute OTC trader Jasper De Maere reads the 50-week reclaim as a constructive signal but calls year-end talk of retesting last October's roughly $126,000 record premature. Nansen's Nicolai Sondergaard argues the deciding factor is whether spot demand follows: without sustained spot and ETF buying, the move risks being pure leverage that unwinds if yields rise or a geopolitical shock lands. Risk appetite rose in parallel across Asian equities — the Muse AI rally lifted chip stocks, with the Kospi up about 2%. Watch items: ETF flows, funding overheating and Friday's options expiry.

CLARITY Stalls, SEC Steps In

Legislative uncertainty lingers beneath the rally. The CLARITY Act (H.R. 3633) fell short in a Senate procedural vote on September 15, 49-50 against the 60 needed to advance, despite a 635-page Republican draft incorporating 126 Democratic requests; ethics rules around officials' crypto holdings — including scrutiny of the Trump family's ventures — proved a core sticking point. Prediction market Polymarket now prices 2026 passage at roughly 6%. Regulators are filling the gap unilaterally: on September 17 the SEC unveiled an “Innovation Exemption” allowing on-chain trading of tokenized US equities, temporarily waiving exchange registration for qualifying tokenized-securities venues and easing dealer rules for liquidity providers for five years. Macro helped too: WTI crude slid from above $100 to near $92 by September 21 on US-Iran diplomacy hopes, easing inflation pressure on risk assets. Readers tracking the market in real time can follow live spot and futures prices on Bitget.

$86,345 Ceiling in Focus

One caution flag has emerged beneath the euphoria: the Coinbase Premium has slipped back into negative territory, dropping to -0.02 when Bitcoin (BTC) traded near $81,500. The gauge, which measures the spread between Bitcoin's dollar price on Coinbase and its USDT price on Binance, briefly crossed above zero before rolling over again — a sign that US spot demand has yet to confirm the rally with sustained buying. Market watchers note the reading remains near zero rather than at an extreme, so it does not necessarily signal a trend reversal, but it reinforces the question of whether non-leveraged, US-based accumulation is following the squeeze. Notably, Strategy's latest 950 BTC purchase was executed at an average price of $79,670, bringing its cumulative cost basis to roughly $63.8 billion across 846,000 BTC.

(as of 18:35 UTC) COINOTAG's proprietary 42-indicator composite S/R scoring engine flags $81,741.54 as the session's key downside gate, scoring 69/100 on a Fibo 0.236, flip R→S, Ichimoku Tenkan and Ichimoku Kijun cluster, with $84,955.30 (61/100, Pivot Point, ATR Lower, Fibo 0.114) as the first cushion and $76,029.84 (60/100, Keltner Lower, Donchian Lower, Swing Low, EMA 50) as the deeper floor. On the upside, the $94,549.91 resistance scores 56/100 on Fibo 1.272 and R3 confluence, with $87,796.95 (47/100, ATR Upper, R1) the nearer test. RSI at 73.31 and a bullish MACD confirm the uptrend, with spot at $86,305.94 up 0.48% over 24 hours. Derivatives read constructive but not euphoric: funding at 0.0014%, open interest near $18.61 billion and a 1.04 long/short ratio (50.9% long) show leverage steady without extreme crowding. The Fear & Greed Index at 78 (Extreme Greed) counsels discipline. A daily close above $87,797 targets $94,550; losing $81,742 invalidates the bullish thesis.