JPMorgan attributes the recent Bitcoin (BTC) and Ethereum (ETH) sell-off to crypto-native leverage rather than institutional exits, noting that spot ETFs and CME futures absorbed minimal forced selling while perpetual futures markets faced sharp deleveraging across both assets.
Bitcoin fell 13.1% from $122,316 on Oct. 3 to $106,329 by Oct. 17, while perpetual open interest dropped from approximately $70 billion to $58 billion on Oct. 10. This $12 billion decline signals forced liquidations rather than orderly position exits.
Farside Investors’ data shows that Bitcoin spot ETFs recorded $70.4 million in net outflows concentrated on Oct. 14, 15, and 16, minimal compared to the scale of the price move and the leverage flush in derivatives markets.
Ethereum saw even more severe deleveraging relative to its market size. Perpetual open interest fell from roughly $28 billion to between $19 billion and $20 billion on Oct. 10, representing a $9 billion to $10 billion drop.
Ethereum spot ETFs recorded $668.9 million in net outflows across Oct. 9, 10, 13, and 16, nearly 9.5 times Bitcoin ETF outflows, with concentrated redemptions on Oct. 10 and Oct. 13.
Despite the larger institutional response in Ethereum ETFs, JPMorgan concluded that perpetual futures deleveraging drove price action in both assets, with ETF flows showing “little forced selling” relative to the derivatives cascade.
The data support the bank’s thesis. Ethereum’s open interest declined by roughly 35%, while Bitcoin’s fell by approximately 17%. However, both assets experienced a coordinated sell-off on Oct. 10 as leverage unwound across crypto-native venues.
| Metric | Window (UTC) | BTC | ETH | Notes |
|---|---|---|---|---|
| US spot ETF net flows (US$m) | Oct 3–16, 2025 | +3,406.9 | +745.9 | Sum of Farside daily “Total” for each date; Oct. 17 shows no entry. |
| CME futures OI variation | Oct 9 → Oct 10, 2025 | ~flat to low-single-digit dip | down; heavier than BTC | Coverage indicates CME BTC OI stayed broadly stable during the flush, while ETH saw more unwinding; exact daily CME OI deltas aren’t published. |
| Aggregate perp OI change (notional) | Oct 10–11, 2025 (24–48h) | ≈ −40% | ≈ −40% | Market-wide deleveraging across perpetuals per Kaiko/JPMorgan; aligns with contemporaneous reporting. |
Perpetual flush mechanics
Perpetual futures exaggerate moves because leverage forces trades. When prices break, margin ratios slip, and exchanges liquidate under-margined positions with market orders that hit thin books and trigger reflexive cascades.
Cross-margin amplifies the dynamic, as collateral marked to market shrinks as the asset falls, forcing accounts that appeared safe to breach maintenance thresholds and add more forced flow.
Funding rates offer the fastest tell. During a down flush, perpetuals typically flip to sustained negative rates with the perpetual trading at a discount to the spot index.
The turn arrives when funding grinds back toward zero while the perpetual premium or discount closes, ideally with price stabilizing on rising spot volume rather than perpetual activity alone.
Open interest provides the second pillar. A sharp drop in aggregate open interest alongside the sell-off means leverage left the system instead of rotating to new shorts.
Bitcoin’s 17% decline and Ethereum’s 35% decline in open interest both point to genuine deleveraging.
A constructive rebuild is slow and spot-led. Prices recover or remain at the base level while open interest rises modestly, funding stays near flat, and the perpetual basis remains tight.
A durable bottom after a perpetual flush looks like negative funding reverting toward zero, the perpetual discount closing, open interest resetting and rebuilding gradually, and the futures curve lifting back into mild contango.
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