Weekly data brief · 7 days to 2026-09-21
BTC +9.6% over the last 7 days. US buyers were above the global price on 0 of 7 days. $2.1B in forced liquidations recorded this week.
Rolling 7-day window over ByKaranteli's own recorded data. Refreshed every 30 minutes.
The week in one look
Price and volatility over the rolling 7-day window.
- BTC +9.6% over 7 days
- BTC implied volatility (DVOL): 38.7 a week ago, 35.5 now
Liquidity & stress
The week in our own liquidity readings: US-vs-global pricing and the PsiCharge state machine.
- Coinbase Premium positive on 0 of 7 days · week average -0.046%
- Current streak: 16 straight days of US bids below global price
- Turkey Premium Index above the world price on 0 of 5 days · week average -59.0 bps
- PsiCharge ends the week in GROUND (score 34) · 9 alarms fired this week
Order flow
How many days the BTC order flow crossed our recorded danger line.
- BTC order-flow toxicity (VPIN) closed above its 90-day danger line on 1 of 7 days
- Leverage over the week: DOGE open interest +26.4%, with 9 of 10 tracked majors adding open interest
Options week
What the tape actually paid for across the week.
- Week taker premium: $160.7M into calls vs $34.4M into puts
- Largest print of the week: buy BTC-25SEP26-70000-C · $12.4M premium
Liquidations
Forced liquidations aggregated over the finalized days of the week.
- $954.8M longs vs $1.2B shorts wiped over the last 7 recorded days
- 14 cascade events this week, largest $303.6M
ETF flows
US spot ETF net flows summed over the week's finalized trading days.
- BTC ETFs took in +$6.2M over 5 trading days
- ETH ETFs lost $140.0M over 5 trading days
Positioning & calendar
Official US futures positioning and what is on the docket.
- CFTC week of 2026-09-15: hedge funds net -6,354 BTC futures contracts (+1,538 WoW)
New listings
New perpetual listings detected across the six exchanges we scan hourly.
- 48 new listings this week: USDBRLUSDT, OURAUSDT, STAMPUSDT, HUTUSDT