Friday's 5% Bitcoin rally, hour by hour: a squeeze at the US open, and what followed it

What moved, and when

Bitcoin closed Thursday's 20:00 UTC hour at $76,499 on Coinbase and ground higher overnight, reaching $77,978 by the end of the 12:00 UTC hour on Friday, September 18. Then the 13:00 hour opened at $77,978 and closed at $80,025, with a high of $80,448. The next hour closed at $80,909. Friday's high was $81,388 in the 19:00 hour, and the 23:00 hour closed at $80,875, up 5.7% from Thursday's 20:00 close. ¹

The US cash equity session opens at 13:30 UTC. The hour that contained the open produced $2,047 of the $4,376 gained between Thursday's 20:00 close and Friday's 23:00 close, close to half of a 27-hour move in one hour. ¹

The move was broad. By 18:25 UTC Spectre's price feed showed Bitcoin up 5.4% over 24 hours, Ethereum up 5.9%, Solana up 10.8%, XRP up 7.1% and Uniswap up 15.0%. Total crypto market capitalisation was $2.78 trillion, with Bitcoin dominance at 58.5%. ¹

The hour that mattered was a squeeze

Spectre records every liquidation event it collects with the side that was forced out. Across BTC, ETH and SOL, the 13:00 UTC hour liquidated $66.6 million of short positions against $2.8 million of longs. The 14:00 hour added $19.7 million of shorts against $2.3 million of longs, and the 19:00 hour, when Bitcoin printed its high, another $20.6 million against $1.9 million. For the whole of Friday, across every asset Spectre tracks, $344 million of shorts were liquidated against $93 million of longs. Wednesday, the day of the Fed decision, had been $112 million against $122 million; Thursday $115 million against $66 million. ¹

A short squeeze is forced buying: traders who had bet on lower prices are closed out by their exchanges, and each closure is a market buy. That is the mechanism the 13:00 hour shows. What it does not show is that shorts were crowded in the funding sense. Spectre's weighted funding rate for Bitcoin was 0.0067% per eight hours on Thursday evening and 0.0043% at 13:01 UTC on Friday, both below the 0.01% neutral rate. Shorts were positioned, but they were not paying a premium to stay short. ¹

Open interest tells the second half of the story. Composite Bitcoin open interest across 15 venues was $25.6 billion at 20:00 UTC on Thursday and $28.4 billion at 20:00 UTC on Friday, up 10.8%. A pure squeeze reduces open interest, because closed shorts are positions leaving the market. Rising open interest through the afternoon means new positions were opened behind the move, in both directions. Whether the new positions were mostly longs chasing or shorts re-entering cannot be read from the total. ¹

One measure of who leaned which way is Binance's account positioning, which counts accounts rather than position sizes. The share of Binance's global accounts positioned long in BTC fell from 59.0% on Thursday evening to 48.4% by Saturday morning, and among top-trader accounts it fell from 60.1% to 51.8%. In ETH the global long share fell from 74.3% to 68.6%. A falling long share during a rally is consistent with accounts selling into strength or adding shorts as price rose. It is account arithmetic, not a measure of dollars. ¹

What was in the news at the same time

The Federal Reserve raised its target range by a quarter point to 3.75–4.00% on Wednesday, September 16, in a unanimous decision. Spectre's report that day recorded the statement, the higher projected rate path, and an early Ethereum rebound that had already given back part of its move. US stocks slipped on the decision day, with the S&P 500 down 0.45% and the VIX up to 17.71 at Wednesday's close. On Thursday they recovered: the S&P 500 closed up 1.14% and the Nasdaq 100 up 1.73%, while the VIX fell 12.8% to 15.44. Crypto lagged that Thursday rebound and caught up on Friday. ^{2, 3, 1}

Friday's crypto-specific reporting clustered around the same hour as the move. The Block's report that the CFTC had filed a crypto asset rulemaking with the White House was published at 13:33 UTC, three minutes after the US open. CoinDesk (15:16), Cointelegraph (16:04) and Decrypt (16:08) followed with the same story: the agency submitted a prerule on crypto asset markets for White House review, pressing ahead after the Senate failed to advance the CLARITY Act. Earlier, at 12:34 UTC, Decrypt's morning note reported the SEC approving an innovation exemption for tokenized stocks. ^{1, 4, 5, 6, 7, 8}

The outlets that covered the price itself described it three ways. Decrypt, at 15:22, called it a fresh short squeeze. Cointelegraph, at 15:35, tied the move to US bond yields reversing higher on oil-supply concerns; on Spectre's tape the 10-year yield rose to 5.00% and WTI crude fell 6.4% to $95.35 by Friday's close. By 17:55 Cointelegraph was reporting crypto-linked stocks rebounding after the CLARITY selloff as regulators moved ahead. Each of those is a reported reading, not a verified cause. ^{9, 10, 11, 1}

The honest statement is that the squeeze, the US open, and the first CFTC report all landed inside the same hour, and the data cannot separate them. Short liquidations were already elevated in the 03:00 UTC hour ($17.3 million against $3.4 million), well before any of Friday's headlines, which argues that positioning was fragile going in and that the open supplied the volume to break it. ¹

Flows and sentiment followed

Spot ETF flows recorded for the September 18 session were positive on both sides: $433 million net into Bitcoin funds, led by Fidelity's FBTC with $311 million and BlackRock's IBIT with $108 million, and $144 million into Ethereum funds, led by BlackRock's ETHA with $114 million. Bitcoin spot ETFs held $102.5 billion at the session's record time. These are the session's creations; they do not identify who bought the spot at 13:30 UTC. ¹

The fear and greed index moved from 63 at the start of Friday to 67 at midday, 73 by 18:00 UTC and 74 by 23:00, all inside the greed band. Spectre's deterministic regime classifier, which reads 30-day and 90-day Bitcoin returns, sentiment, ETF flows and dominance, has read the market as a bull regime since before the week began, with Bitcoin up 19.7% over 30 days and 21.4% over 90 days at Friday's 14:34 UTC run. ¹

What this does and does not establish

It establishes that Friday's move was concentrated in one hour, that it was a short squeeze in the measured sense, that new positioning followed rather than only old positioning leaving, and that flows and sentiment turned more positive on the day. It does not establish that the CFTC filing, the Fed's decision two days earlier, or the bond market caused the move, and I would not write a sentence that claims it did.

What I would watch is the same structure in reverse. Open interest at $28.4 billion is higher than at any point in the prior day. Spectre's daily chart read at 18:10 UTC placed the nearest resistance at $81,163, the weekly resistance at $81,583 and daily support at $79,550; the daily structure still reads as a sequence of lower highs and lower lows, so Friday was a strong day inside a daily downtrend rather than a proven trend change. Spectre's liquidation heatmap on Saturday morning modelled about $210 million of short liquidations resting around $82,800 and $349 million around $85,200, and about $328 million of long liquidations around $77,100. Those are levels where forced flow would ignite if price reached them, not forecasts that it will. ¹

Bitcoin is 35% of the way from its 52-week low of $57,800 to its 52-week high of $124,774. The next scheduled Federal Reserve decision comes at the October 27–28 meeting. Between now and then the calendar carries speeches rather than decisions, which is where the next article picks up. ^{1, 12}

Sources

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