# Bitcoin shorts build during price decline as spot flows take control

By John Kim

Canonical URL: https://www.tokenpost.com/news/insights/35570
Published: 2026-10-20T11:03:23.000Z
Updated: 2026-10-20T11:03:23.000Z
Section: Insights & Views

> Bitcoin open interest increased during a 2.2% price decline, indicating new shorts. Stable CME exposure and limited Bitfinex leverage leave spot demand as the main near-term driver.

Bitcoin futures open interest rose as the price fell, signaling an influx of new short positions rather than a derivatives-driven liquidation cascade. Institutional exposure remained stable, leaving spot demand as the key near-term market force.

In its “Hot Core CPI Hands Bitcoin’s Fate To Spot Flows” report published on Oct. 15, 2026, Bitfinex said the derivatives market did not amplify the previous day’s CPI reaction, while Bitcoin’s correction unfolded without cascading liquidations.

Open interest rebounds as shorts enter

Aggregate Bitcoin futures open interest across tracked exchanges fell to 619,667 BTC on Oct. 12, its lowest daily level of 2026 and the lowest since March 19, 2025. The total was 5% below the 652,546 BTC recorded on Oct. 8 and 12.8% below the Sept. 22 peak of 710,885 BTC.

Open interest subsequently increased following the CPI release. It stood at 645,682 BTC, or $52.5 billion, at 10:00 UTC on Oct. 15, up 3.8% from 622,098 BTC at 08:30 UTC on Oct. 14. Bitfinex described it as the first sustained increase during the pullback.

Open interest rose while Bitcoin fell 2.2% and $918.2 million in long positions were liquidated, indicating that newly opened positions were shorts. The funding rate confirmed the shift, printing at about -4.5% annualized at 00:00 UTC on Oct. 15 before rebounding to 7% at 08:00 UTC as Bitcoin’s recovery from $80,210 forced some shorts to cover.

A similar structure emerged on Oct. 7, when shorts accumulated after Bitcoin first lost $84,000 and were squeezed as the price moved back above that level the following week.

Reclaiming $81,300 is the near-term pivot

If Bitcoin reclaims and holds $81,300, shorts opened between $80,200 and $81,700 would be trapped below the level, allowing a modest spot bid to carry the price toward $83,000. Bitcoin was trading above $82,000 when the report was published, suggesting that process was underway.

If Bitcoin loses $81,300 on a sustained basis, those shorts would remain profitable and support would depend on spot demand at the next cost-basis bands. Funding rates ranged from -4.5% to 9% annualized over the previous week and oscillated around zero from session to session, indicating that neither side was paying to maintain a view beyond the next few hours.

Liquidations reach $2 billion, concentrated in altcoins

The Oct. 12-13 sell-off took Bitcoin from Monday’s opening price of $83,777 to a low of $81,054 early Tuesday. Liquidations across all cryptocurrencies and exchanges totaled $987.5 million over the two days, including $773.8 million in long positions.

Bitcoin accounted for $217.1 million of the liquidations, including $152.3 million in longs. Ether accounted for $217.6 million, including $156.9 million in longs. Other altcoins made up the remaining $552.8 million, or 56% of the total.

The pattern repeated during the CPI session and overnight decline. Positions totaling $436.1 million were liquidated on Oct. 14, followed by $587.6 million on Oct. 15. Of the combined $1.02 billion, $918.2 million involved longs. Bitcoin accounted for $210.4 million of all positions, including $185.4 million in longs, while other assets represented the remaining 79%.

For comparison, Oct. 8 liquidations totaled $1.19 billion, including $1.05 billion in longs, with Bitcoin accounting for $303.9 million. Across the four sessions from Oct. 12 to Oct. 15, the market liquidated $2 billion—more than the Oct. 8 flush—without a decline in Bitcoin’s own open interest. Bitfinex said unresolved leverage remained concentrated in the altcoin market.

Institutional capital holds as spot flows gain influence

Institutional capital remained anchored despite the volatility. Chicago Mercantile Exchange open interest stood at about 110,000 BTC, or 17% of the aggregate, reflecting a stable basis-trade book. Recent deleveraging was concentrated in perpetual contracts on crypto-native venues, where short-term speculative positions were cleared.

On Bitfinex, margin shorts remained negligible at 246 BTC, compared with approximately 89,600 BTC in margin longs. With little short-side leverage available for a squeeze and a limited long overhang to liquidate, near-term price action was expected to depend more heavily on organic spot-market flows than on derivatives.