An eight-month high on quiet leverage: futures open interest at $60.00bn with 24-hour trims into the peak, funding clustered at +1% to +4% annualised, OKX briefly negative, and an options book that is long the trend but hedging the week.
This column reads the two numbers that matter most to anyone holding a perp - what the open-interest book is doing and what the funding clock is charging - and this week they told an unusual joint story: price made its highest print since January while the leverage complex spent the back half of the week getting smaller.
The macro room set an unusual stage. The US 10-year Treasury yield closed at 5.17%, the highest since 2007, up 16bp and the highest since 2007, with the 2-year at 4.85% and the 30-year at 5.49% - its highest since 2004. The dollar index firmed to 100.971, gold fell -2.10% to $4,287.25, and crude held above $100 (Brent $104.32, WTI $92.41) as Middle East supply risk offset US-Iran truce hopes: a textbook risk-off week for everything priced in dollars, except crypto. Equities held up (the S&P 500 +1.2% to 7,743.41, the Nasdaq +2.1%), and the Fear & Greed index ran from 50 to 74 as the breakout built. The underlay matters more than the optics: US M2 reached a record $23.34 trillion in August, and Michigan's one-year inflation expectation rose to 4.6%, the highest since June. A steep curve, a firm dollar and sticky inflation are precisely the conditions under which a collateralised, yield-bearing stablecoin float - the thing that funds perpetuals - looks most like a necessity rather than a novelty.
| Reading | Note | Source | |
|---|---|---|---|
| US 10-year Treasury yield | 5.17% | up 16bp on the week, the highest since 2007, after briefly topping 5.2% | JPMorgan Asset Management weekly insight, 28 September 2026; CNBC, 25 September 2026 |
| US 2-year Treasury yield | 4.85% | up 11bp on the week | Sina Finance NY close report, 25 September 2026; JPMorgan AM weekly insight, 28 September 2026 |
| US 30-year Treasury yield | 5.49% | its highest level since 2004 | CNBC, 24 September 2026; JPMorgan AM weekly insight, 28 September 2026 |
| US dollar index | 100.971 | closed the week up about 0.5% | Xinhua NY close report, 25 September 2026; HighFxRebates weekly recap, 27 September 2026 |
| S&P 500 | 7,743.41 | up 1.2% on the week; the Nasdaq rose 2.1% and the Dow 0.3% | Xinhua, 25 September 2026; The Market Breakdown, 25 September 2026 |
| Gold | $4,287.25 | down 2.1% on the week as the dollar and long yields firmed | Investing.com spot series via HighFxRebates, 27 September 2026; cross-check JinTen/10jqka weekly close $4,284.76, -2.12% |
| Brent crude, November contract | $104.32 | fell 2.14% on Friday but held above $100 as Middle East supply risk offset US-Iran truce hopes | Xinhua NY close report, 25 September 2026 |
| WTI crude, November contract | $92.41 | down 2.33% on Friday and the week's heavy oil loser as the truce trade built | Xinhua NY close report, 25 September 2026 |
| Crypto Fear & Greed | 74 | Greed, up from 50 before the Monday breakout | Alternative.me via The CryptoBase and CryptoPulseHQ, 26-27 September 2026 |
| Total crypto market cap | $2.89 trillion | up 3.2% on the week, with bitcoin dominance at 58.7% | CoinGecko via The CryptoBase and Portals weekly snapshot, 27 September 2026 |
| US M2 money supply | $23.34 trillion | a record in August | Finobird weekly crypto review, 28 September 2026 |
| UMich 1-year inflation expectations | 4.6% | up from 4.0%, the highest since June; headline sentiment fell to 48.1 | University of Michigan final September survey via The Market Breakdown, 25 September 2026 |
Total bitcoin futures open interest stood near $60.00bn on 23 September - Total bitcoin futures open interest climbed back toward $60bn after spending much of June and July in the mid-$40bn range - still well below the roughly $90bn-$100bn peak of late 2025. The venue ledger: Binance $11.72bn, CME $9.83bn, Bybit $5.79bn, MEXC $5.30bn, Gate $5.21bn, Hyperliquid $3.53bn, OKX $3.27bn. The tell is the 24-hour change into the pullback: Open interest fell over 24 hours at most major venues as price pulled back from the peak: Binance -7.13%, MEXC -9.28%, Hyperliquid -12.33%, Bitunix -20.73%, CME -1.15%. CME was the steadiest book, down just 1.15% - the institutional cohort held while the offshore books leaned out.
| Venue | Open interest | 24-hour change |
|---|---|---|
| Binance | $11.72bn | -7.13% |
| CME | $9.83bn | -1.15% |
| Bybit | $5.79bn | not disclosed |
| MEXC | $5.30bn | -9.28% |
| Gate | $5.21bn | not disclosed |
| Hyperliquid | $3.53bn | -12.33% |
| OKX | $3.27bn | not disclosed |
For completeness, the Monday squeeze itself built leverage: all crypto derivatives open interest rose +7.59% to about $156.00bn as shorts were forced in. The sequence - build on the breakout day, trim into the peak - is why the weekly close sits on a smaller book than the weekly high did. Positioning data has a timestamp, and the timestamp is the analysis.
Annualised funding across Binance, Bybit, Deribit, Hyperliquid and OKX held between +1% to +4% through the whole move - longs paid, but at a rate that compounds to a rounding error over a week. Deribit printed several spikes above 5% in late September. OKX's BTC perp printed -0.0007% per 8-hour interval, a slight discount, and the cross-venue table spanned -16.6% to +17.9% annualised across 26 venues: Hyperliquid's BTC book at 10.95% on the hourly clock, Extended deeply negative. Dispersion this wide is usually a venue-mix artefact of an hourly-settlement market repricing after a squeeze - the averages matter less than the tails.
| Holding period | Cost on this notional | As % of notional |
|---|---|---|
| 1 day | $30.00 | 0.03% |
| 1 week | $210.00 | 0.21% |
| 1 month | $900.00 | 0.90% |
| 1 quarter | $2,737.50 | 2.74% |
Read the carry table as the quiet cost of being right slowly. A long held through the whole week paid less in funding than the spread between Monday's high and Friday's close gave back - this week, patience was cheaper than funding.
The derivatives market's insurance book told a two-sided story. Open interest pushed above $50bn for the first time since late 2025, 59-60% of it calls - 362,972 BTC against 242,031 in puts - yet fresh volume ran 58.2% to puts, and Friday's $16bn expiry sat with max pain at $76,000 against spot near $84,400. A book that is long the trend on paper and buying protection at the margin: consistent with a market that believes the breakout and is paying up anyway.
Hyperliquid's own metrics set the structural backdrop: a $18bn two-sided open-interest record on 23 September, a $7.67bn stablecoin collateral high three days later, and fee-funded buybacks running at roughly $876m a year at the current pace. HYPE closed at $91.73, -0.6% on the week after a record $97.98 print - and the HIP-3 stake obligation is unchanged at 500,000 HYPE, about $46m. The venue's capacity metrics made new highs the week its token cooled; on a fee-flow basis those are the same trade on a lag.
Perpetuals are collateralised loans, so the size of the stablecoin float is the ceiling on the system - and the ceiling rose. Total stablecoins reached $305.2bn, +0.68% on the week, with Tether at $183.8bn (60.23% of the market) and USDC at $75.3bn, up +$1.04bn in seven days as the GENIUS Act comment period opened. Ripple's RLUSD sat at $2.49bn. Hyperliquid's own collateral hit a $7.67bn high three days after its open-interest record - the more important pairing, because record open interest on record collateral is a margin-quality signal, not a leverage warning. The Federal Reserve requested public comment on 24 September on two proposals for a regulatory framework for Board-supervised payment stablecoin issuers under the GENIUS Act - a proposal and a request for comment, not a final rule.
The week's only clean leverage flush came first. On 21 September, $750.50m of positions were liquidated in 24 hours - $648m of them shorts, 86.3% of the window, across 137,386 traders, with the largest single order at $11.29m. The band Glassnode had pre-flagged was $83,000-$86,000, and the move cleared in a single session. For a funding-and-OI column the lesson is the shape: a short squeeze that opens the week, then a spot-led continuation on quiet funding, is the opposite of the long-led blowoff that ends cycles.
| Window | Liquidations | Composition | Scale | Source |
|---|---|---|---|---|
| 24 hours to 21 September (short squeeze) | $750.5m | $648m shorts (86.3% of the window) | 137,386 traders; largest single order $11.29m | CoinGlass via Altcoin Buzz / Coin Edition |
| Peak hour inside the window, 21 September | $271.83m | $262.30m of shorts | against $9.53m of longs in the same hour | CoinGlass via BeInCrypto |
The week's structural news bore directly on who is allowed to run a perp book. X enabled cashtag trading for US users on 21 September, pushing timeline charts into Coinbase, Kraken and Interactive Brokers - a distribution change that shows up in retail volumes a month out, not a day. The adversarial items dominated: the Manhattan US Attorney's Office opened a sanctions probe into Binance, and the Sixth US Circuit ruled that Ohio and Tennessee can regulate Kalshi's event contracts under state gambling law, against a Ninth Circuit ruling last month and an April Third Circuit ruling the other way, a conflict that invites Supreme Court review; Kalshi's share of that market is about 76%. The same CEA-preemption question sits underneath every US-listed crypto perpetual, so the ruling is a live precedent, not a curiosity.
On the constructive side, the Federal Reserve opened a GENIUS Act comment period for payment stablecoin issuers on 24 September - a proposal and a request for comment, not a final rule, but the first federal scaffold for the collateral that prices perpetuals - and SEC Commissioner Hester Peirce announced her 2 October departure. The Clearing House put Quant on its 25 major US banks tokenized-deposits rail moving $2 trillion a day, Aave V4 launched on Base with seven Coinbase tokenized stocks as collateral, and a Neutron governance exploit cost about $9.4m. For a funding-and-OI column the point is structural: the venues that quote your perpetuals are increasingly regulated entities, and the regulatory status of the venue is now part of the trade, not a footnote to it.
Between roughly +1% to +4% at the major venues - Binance, Bybit, Deribit, Hyperliquid, OKX - with Deribit spiking above 5% and OKX printing -0.0007% per interval at the low end. Modest funding on an eight-month high is the signature of a spot-led move.
Both, in sequence. The Monday squeeze added +7.59% across all crypto derivatives to about $156.00bn; from Wednesday the bitcoin futures book was trimmed over 24 hours at most major venues, ending near $60.00bn with CME the steadiest cohort.
They are different conventions, not a discrepancy: $18bn is the venue's two-sided count of every open long and short, while $8.1bn is a tracker's single-sided record from 20 September, about 10.9% of global perp open interest. Benchmarked against CEX figures, the one-sided reading is the comparable one.
Risk-off for dollars: the 10-year at 5.17%, the highest since 2007, the 30-year at 5.49% (highest since 2004), the dollar index at 100.971, gold down -2.10% to $4,287.25, crude above $100. Bitcoin rose anyway because the demand was asset-specific - record ETF inflows and a stablecoin float at $305.2bn, USDC up +$1.04bn in seven days - not a beta of a risk-on tape, and US M2 hit a record $23.34 trillion in August.
The Sixth US Circuit let Ohio and Tennessee regulate Kalshi's event contracts under state gambling law, against a Ninth Circuit ruling last month and an April Third Circuit ruling the other way, inviting Supreme Court review; Kalshi holds about 76% of that market. The same CEA-preemption question underlies every US-listed crypto perpetual, so it is a live precedent for where those contracts can be offered, not a footnote.