As of the Sept. 22 intraday price action, Bitcoin has surged sharply within 24 hours by about 5%–8%, once pushing into the roughly $86,000–$87.3k range. Some market sources report peak values around $87,281 / $87,354, marking a relative high over the past ~8 months and since the start of the year. Ethereum is also strengthening in tandem, with gains roughly in the 2.8%–3.5% range, trading at about $2,750–$2,800. The total crypto market cap has moved closer to around $3 trillion, and some sentiment indicators have also pushed the Fear & Greed Index into the “Extreme Greed” zone (about 78). The market immediately turns the question to readers: is this an upswing that spot and ETF buying can carry forward to challenge $90,000, or is it mainly a short-squeeze rally driven by large-scale liquidations of shorts?

I. What happened: prices jumped sharply upward, and the shorts bought first

The most glaring thing this round isn’t “a few more percentage points up,” but the liquidation structure on the derivatives side. Data from multiple sources points to: total liquidations over the past 24 hours of roughly $750 million to $1 billion. Of that, short liquidations are about $650 million to $850 million, making up the overwhelming majority. In other words, as prices are pushed upward, a large number of short positions betting on a decline are forced to close—creating a typical short-squeeze acceleration phase: the higher the price climbs, the more shorts are compelled to buy back, and those buybacks further push the price up.

Spot-side sentiment is heating up too. Observations of on-chain and exchange flows suggest that when Bitcoin broke above roughly $85,000, Binance’s 1-hour net proactive buying surged at one point to about $618 million (per CryptoQuant’s related methodology). This kind of short-term net-buying spike typically reflects momentum-chasing after clearing a key resistance level, synchronized with short-covering—not just slow bullish accumulation.

II. Why it’s rising: short squeeze + ETF inflows + easing macro sentiment

Break the drivers into three layers—it’s easier to see what’s truly “sustainable”:

1) Fuel for the short squeeze: the aforementioned roughly $650 million–$850 million in short liquidations is the closest near-cause with the biggest price elasticity this round. The hallmark of a short-squeeze rally is a steep slope and quick pullbacks—once the liquidation wave passes, if there’s no new spot demand to take over, profit-taking at higher levels becomes more likely to come quickly and aggressively.

2) ETFs and institutional capital: in recent days, clear signs of inflows back into Bitcoin spot ETFs have emerged. There’s a record of about $433 million net inflow in a single day, and multi-day totals also reach the hundreds of millions of dollars range. Compared with pure leverage-driven pushing, ETF net inflows lean more toward medium-term demand—but you still need to check whether inflows remain continuous on subsequent trading days, not just a single impulse.

3) Macros and narrative repair: macro variables such as U.S. Treasury yields and oil prices have shown some stabilization, and risk appetite has warmed. At the same time, the market is still digesting the impact from last week’s setbacks around the CLARITY Act and the rate-hike narrative. When sentiment snaps quickly from fear toward greed, prices often move “faster than fundamentals,” which also means volatility tends to amplify in parallel.

III. What to watch next: is above $87k the handoff—or a vacuum?

For ordinary observers, more useful than slogans are a few verifiable clues:

1) Can spot/ETFs keep attracting capital sustainably above roughly $87,000? If ETF flows turn intermittent— or even flip to net outflows—while price is still being held up by derivatives shorts covering, then the setup is closer to “the tail end of a short squeeze.”

2) Is the liquidation wave abating? After the peak of short blowouts, if long leverage also stacks up quickly, the risk of “buying-to-kill” on the next pullback increases.

3) The quality of trades and pullbacks in the $87k–$90k range. A healthy breakout is usually accompanied by a pullback with buy-side support; if price surges on volume and then quickly falls back below the breakout level, it looks more like a false breakout in a liquidity vacuum.

4) Whether altcoins and high-beta sectors follow in a differentiated way. If the strong up-move is only Bitcoin flying solo, it suggests capital remains defensive. If there’s clear rotation, risk appetite is spreading—but volatility and the cost of missed-bullish-moves/chasing higher prices will rise at the same time.

IV. How to read this market move (not investment advice)

Say the question plainly: when Bitcoin surged to around $87,000, the shorts have already “paid tuition” for the rise once. What truly determines whether it can challenge $90,000 is whether spot and ETF demand can keep bidding even after the short-squeeze tide has receded. Extreme greed (around 78) isn’t itself a bearish signal, but it does remind you that market pricing has become very crowded. At this point, it’s more suitable to review the structure and capital continuity rather than use sentiment as a substitute for position/risk management.

Disclaimer: This article is for information sharing and market observation only and does not constitute any investment advice. Crypto assets are highly volatile—please make independent judgments and assume risks yourself.