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<h2 id="b-tldr-b">TLDR:</h2><ul><li>Bitcoin surpassed $80,000 for the first time since January, briefly reaching $83K before pulling back slightly.</li><li>Open interest surged from $48B to $58B while spot volumes hit two-year lows, signaling leverage-driven movement.</li><li>Bitcoin ETF inflows added $623M, with Morgan Stanley’s new BTC ETF pulling $194M in its debut month alone.</li><li>Tuesday’s CPI print and the Fed chair transition from Powell to Warsh are the next key macro triggers to watch. </li></ul>Bitcoin’s return above $80,000 has drawn attention from market analysts, with trading firm<a href="https://blockonomi.com/wintermute-bitcoin-and-ether-lead-as-crypto-markets-stay-range-bound-into-year-end/" rel="noopener noreferrer nofollow"> Wintermute</a> raising concerns about what is driving the move. While the price milestone marks the first time BTC has traded at this level since January, Wintermute warns that the rally may not be as solid as it appears on the surface.<h2 id="b-short-squeeze-mechanics-behind-bitcoin-s-price-move-b">Short Squeeze Mechanics Behind Bitcoin’s Price Move</h2>Bitcoin climbed to approximately $83,000 last week, breaking above its 200-day moving average for the first time in seven months. The move coincided with a broader equity rally, with the Nasdaq gaining 4.5% and the S&amp;P 500 rising 2.3% to fresh all-time highs. U.S. nonfarm payrolls also beat expectations, coming in at 115,000 against a consensus of 65,000.Wintermute, however, pointed to the mechanics behind BTC’s price action as a reason for caution. Open interest in Bitcoin futures jumped from $48 billion to $58 billion over the past month. At the same time, spot trading volumes fell to two-year lows.The firm <a href="https://TWITTER.com/wintermute_t/status/2054147356304789667?s=20" rel="noopener noreferrer nofollow">noted on</a> X: “BTC ground above $70k, nobody believed it, shorts piled in, got liquidated, and had to be covered by buying.” That dynamic, rather than fresh demand, appears to be what pushed prices higher.<div class="embed-twitter"><blockquote class="twitter-tweet"><a href="https://t.co/znFUiLOTYo" rel="noopener noreferrer nofollow">https://t.co/znFUiLOTYo</a>— Wintermute (@wintermute_t) <a href="https://twitter.com/wintermute_t/status/2054147356304789667?ref_src=twsrc%5Etfw" rel="noopener noreferrer nofollow">May 12, 2026</a></blockquote></div><a href="https://parameter.io/bitcoin-btc-surges-past-76k-as-46-day-funding-rate-pattern-signals-potential-bottom/" rel="noopener noreferrer nofollow">Funding rates</a> remain predominantly short, which means additional squeeze pressure could still push prices up. That said, Wintermute was clear that forced covering is not the same as genuine market conviction.<h2 id="b-institutional-flows-offer-a-more-constructive-long-term-view-b">Institutional Flows Offer a More Constructive Long-Term View</h2>Despite the short-term concerns, longer-term indicators tell a different story. Bitcoin ETF flows added $623 million during the period, and <a href="https://coincentral.com/morgan-stanley-bitcoin-etf-posts-194m-with-no-outflows/" rel="noopener noreferrer nofollow">Morgan Stanley’s</a> new BTC ETF pulled in $194 million in its first month without a single day of outflows. Exchange reserves remain at seven-year lows, pointing to steady accumulation by long-term holders.Wintermute noted that whale accumulation and ETF inflows continue to absorb supply at current levels. However, the firm also observed that the institutional bid tends to reduce in size as prices move higher, which limits upside pressure over time.The near-term focus now turns to macroeconomic events. Tuesday’s CPI release will offer the first clear look at how energy prices have fed into inflation. Additionally, Federal Reserve Chair Powell’s term ends Thursday, with <a href="https://moneycheck.com/kevin-warshs-path-to-fed-leadership-clears-after-senate-roadblock-removed/" rel="noopener noreferrer nofollow">Kevin Warsh’s</a> confirmation expected to follow.Wintermute stated that if Bitcoin holds above $80,000 through a macro shock, that would serve as genuine confirmation of a trend change. A selloff in line with equities, however, would suggest the short squeeze was the primary driver all along. RSI is currently entering overbought territory, and spot demand needs to step in for the rally to hold.The post <a href="https://blockonomi.com/bitcoins-80k-rally-raises-questions-about-sustainability-wintermute-says/" rel="noopener noreferrer nofollow">Bitcoin’s $80K Rally Raises Questions About Sustainability, Wintermute Says</a> appeared first on <a href="https://blockonomi.com" rel="noopener noreferrer nofollow">Blockonomi</a>.

Bitcoin’s $80K Rally Raises Questions About Sustainability, Wintermute Says

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