The two numbers that matter most to anyone holding a perp - what positioning does and what it costs - read as a contradiction this week: the book shrank while turnover grew 29.59%, and funding stayed at its own average through a squeeze.
Bitcoin aggregate futures open interest closed the week to 6 September at $53.44bn, -1.64% ($890m) on the week, inside a $52.88bn to $58.12bn range around a $54.63bn average. The intra-week high printed on 4 September, when the Waller squeeze added 7.79% of open interest in a day - positioning that the close then gave back. In coin terms the story differs: 709,000 BTC from 687,000, +3.2% - the dollar book fell on price, not on coin leaving the market.
The relocation matters more than the shrinkage: the altcoin complex overtook bitcoin's aggregate open interest for the first time in 21 months while the total held near $136bn. ZEC alone carried roughly $2.3-2.4bn of futures open interest, with $542m of it on Hyperliquid against $485m a week earlier, a +11.6% rise.
| Measure | Value | Note |
|---|---|---|
| Week close (6 September) | $53.44bn | -1.64% week on week |
| Week average | $54.63bn | daily average across the week |
| Week high | $58.12bn | intra-week peak |
| Week low | $52.88bn | intra-week trough |
| Coin-denominated, 4 September | 709,000 BTC | +3.2% from 687,000 BTC |
Aggregate bitcoin perpetual funding printed 4.39% annualised for the week. The 8-hour settlement reading on 4 September was 0.0079%, which annualises to 8.65% under rate x 3 x 365. On Hyperliquid's 1-hour clock bitcoin funded at 0.0012% per hour at the 4 September, 14:02 UTC snapshot - 10.5% annualised. Nearly the whole tracked cohort sat at 0.0013% per hour, 11.4% annualised, with LIT the sole negative at -8.8%.
The cohort-wide figure is the one to carry forward: 10.88% annualised, OI-weighted across $9.87bn of open interest. Funding at the venue's own average through a squeeze means the move was financed by closing shorts, not by opening leveraged longs - and closed positions pay no funding.
The full tracked cohort at the snapshot, via the venue's public API. Nearly every market sits at 0.0012-0.0013% per hour; the exceptions are the reading. LIT funds negative at -0.0010% per hour (-8.8% annualised, shorts paying) - the only market in the cohort where longs are being paid to hold. ZEC prints the standard rate while having moved 15.5% in a day, the cohort's cleanest disconnect between momentum and the cost of holding it.
| Asset | Mark | 24h | Funding / hour | Annualised | Open interest | 24h volume |
|---|---|---|---|---|---|---|
| BTC | 80,901 | +4.0% | 0.0012% | +11% | $2,900m | $4,320m |
| ETH | 2,508 | +4.3% | 0.0013% | +11% | $2,260m | $1,270m |
| HYPE | 86 | +4.7% | 0.0013% | +11% | $2,050m | $722.6m |
| SOL | 104 | +2.8% | 0.0013% | +11% | $597.5m | $307.5m |
| ZEC | 955 | +15.5% | 0.0013% | +11% | $541.8m | $399.5m |
| XRP | 1.448 | +5.7% | 0.0013% | +11% | $240.2m | $122.4m |
| PUMP | 0.0043 | -0.8% | 0.0013% | +11% | $176m | $81.3m |
| LIT | 4.33 | +11.5% | -0.0010% | -9% | $179.6m | $87.4m |
| XMR | 502 | -2.2% | 0.0013% | +11% | $97.9m | $36.3m |
| NEAR | 1.92 | +1.0% | 0.0013% | +11% | $90m | $23m |
| LINK | 12 | +5.9% | 0.0013% | +11% | $83.2m | $18.5m |
| AAVE | 134 | +4.7% | 0.0013% | +11% | $80.9m | $11.4m |
| DOGE | 0.0869 | +4.7% | 0.0013% | +11% | $60.3m | $33.2m |
| ENA | 0.1619 | +6.8% | 0.0013% | +11% | $60.6m | $50.1m |
| CASHCAT | 0.2635 | +0.6% | 0.0013% | +11% | $57.8m | $48.6m |
| XPL | 0.093 | +8.5% | 0.0013% | +11% | $52.2m | $30.9m |
| PONS | 0.6651 | +34.4% | 0.0013% | +11% | $48.7m | $82.6m |
| UNI | 6.309 | +10.3% | 0.0013% | +11% | $48.4m | $67.9m |
| BNB | 724 | +4.1% | 0.0013% | +11% | $44.2m | $9.4m |
| TAO | 229 | +3.8% | 0.0013% | +11% | $40.5m | $14.7m |
| FARTCOIN | 0.1714 | +6.9% | 0.0051% | +45% | $33.6m | $18.2m |
| ADA | 0.221 | +7.1% | 0.0013% | +11% | $32.4m | $10.1m |
| SUI | 0.7676 | -0.3% | 0.0013% | +11% | $31.6m | $13.4m |
| MON | 0.0262 | +2.9% | 0.0013% | +11% | $35.6m | $7.7m |
| ASTER | 0.7184 | -1.0% | 0.0013% | +11% | $26.3m | $7.9m |
| Holding period | Funding cost | Share of notional |
|---|---|---|
| 1 day | $28.80 | 0.03% |
| 1 week | $201.60 | 0.20% |
| 1 month | $864.00 | 0.86% |
| 1 quarter | $2,628.00 | 2.63% |
Read against the week's price action, the table says the cost of conviction was low even while the risk of surprise was high. A quarter of holding at the snapshot rate consumes a smaller share of notional than a single day of the week's realised movement delivered - which is precisely the configuration in which traders hold through event risk rather than pay up for protection.
Hyperliquid's 30-day volume reached $212.09bn, 29.59% over the window, with 30-day fees of $70.0m and a 36.6% share of reported 24-hour volume across 87 tracked perp DEXes on 4 September. The venue's protocol economics context from August - $106m in monthly fees on $400.00bn of volume, a $1.251bn annualised revenue run rate - is retained from last issue and not re-verified this week. Turnover leading positioning is the same pattern the desk flagged in item 2 of the news review: short-horizon flow, not commitment.
| Venue | Share of 24h volume |
|---|---|
| Hyperliquid | 36.6% |
| Aster | 11.4% |
| ApeX Omni | 7.1% |
| edgeX | 6.5% |
| Lighter | 6.2% |
| Variational | 5.9% |
| GMTrade | 5.6% |
| Grvt | 1.9% |
| StandX | 1.8% |
| Pacifica | 1.6% |
The funding story is about the cost of positions; the collateral story is about what backs them. The stablecoin base grew to $305.6bn from $304.6bn at the start of the window, with USDT at $183.4bn and USDC at $74.7bn - the top two assets are 84.5% of the base, and USDC issuance rose roughly $2bn on the week. On the flows side, US spot bitcoin ETFs took $987m across the week to 6 September, including $730.9m on 3 September alone, the largest single day since January; fund net assets stood at $101.25bn on 4 September. Spot ether ETFs added $162.2m over seven days.
| Product | Flow | Window | Note | Source |
|---|---|---|---|---|
| US spot Bitcoin ETFs | $987.0m | week to 6 September 2026 | roughly $4.25bn over the trailing thirty days | Zerocap citing ETF flow data, week to 6 September |
| US spot Bitcoin ETFs, single day | $730.9m | 3 September 2026 | largest single-day inflow since January; IBIT took about $731m of it | Zerocap citing ETF flow data, week to 6 September |
| US spot Ether ETFs | $162.2m | trailing 7 days | seven-day net inflow | Lookonchain, week to 6 September |
| US spot XRP ETFs | $170.0m | 11 days to 2 September 2026 | cumulative inflow over eleven days | reported 2 September 2026 |
The composition point is the one to watch: the collateral entering the market this week skewed toward the asset most used as margin on US-facing venues, in the same week the regulated-wrapper pathway kept its schedule. That is dollar margin preparing for venues that do not yet exist - relevant to the approval clock, not to this week's funding prints.
$53.44bn at the weekly close, down 1.64% ($890m) on the week to 6 September 2026, against a weekly average of $54.63bn and an intra-week range of $52.88bn to $58.12bn. In coin terms the book grew 3.2%, to 709,000 BTC on 4 September from 687,000.
Aggregate perpetual funding printed 4.39% annualised for the week - positive but subdued. The 8-hour reading on 4 September was 0.0079% (8.65% annualised). Hyperliquid's 1-hour clock printed 0.0012% per hour for bitcoin, 10.5% annualised.
It weights each tracked market's annualised funding rate by its open interest, giving the rate a typical open position actually pays across the cohort, rather than a simple average across markets of very different sizes. This week it printed 10.88% annualised across the tracked Hyperliquid cohort.
Because turnover and positioning measure different things. Volume counts every contract traded; open interest counts contracts held. Growth in volume with flat open interest indicates short-horizon flow - positions opened and closed within the window - which is consistent with a squeeze-driven week.
No. The $106m August fees figure is retained from last issue as protocol-economics context and is explicitly marked as not re-verified this week. The current-week figures are the 30-day volume of $212.09bn and 30-day fees of $70.0m.
LIT is the only market in the tracked Hyperliquid cohort funding negative at the snapshot: -0.0010% per hour, or -8.8% annualised. A negative rate means longs are paid and shorts pay - the standard signature of a market where shorts are the crowded side. In a week defined by forced short covering elsewhere, LIT's negative print is the cohort's remaining crowded-short position in plain sight.
Because funding is paid in collateral, and the size and composition of the collateral base bound how much leverage the market can carry. The base grew to $305.6bn over the window, with USDC issuance up roughly $2bn - growth in the asset most used as margin on US-facing venues. Collateral growth without funding lift-off means capacity is building before conviction is.