Bitcoin Perpetual Contracts Hit 156-Hour Discount as Open Interest Surges

The Bitcoin derivatives market is currently exhibiting a rare structural anomaly as perpetual contract prices remain consistently lower than spot market rates. According to data provided by CryptoQuant analyst Axel Adler Jr., BTC perpetual contracts have traded at a negative basis for 156 consecutive hours. This prolonged period of "discounting" suggests a significant shift in market mechanics, even as capital inflows into the futures sector continue to accelerate, reaching levels not seen since the third quarter of the year.

Persistent Negative Basis and Selling Pressure

The divergence between the spot and derivatives markets has become more pronounced over the past week. Specifically, on November 11, BTC perpetual contracts were trading at a 0.047% discount relative to the spot price. This trend of a negative basis has been widening steadily since November 6, indicating sustained selling pressure originating from the futures side.

A negative basis typically occurs when short-sellers are dominant or when there is a lack of aggressive buying on margin compared to the underlying spot demand.

Despite the price discount, the total volume of active positions is climbing rapidly. The market has witnessed the following developments:

• The total Open Interest (OI) in perpetual contracts has reached 367,400 BTC.
• In the last seven days alone, OI increased by 22,000 BTC.
• This represents one of the most substantial weekly increases in leverage since August 2026.

Risks of Forced Deleveraging and Market Volatility

The combination of rising Open Interest and a weak or negative basis creates a complex environment for traders on the Bitcoin (BTC) blockchain. Analysts warn that these conditions increase the probability of high volatility events.

The increase in open interest combined with a weak basis makes the market more susceptible to the risk of forced deleveraging; if open interest declines, it would mean leverage is decreasing.

This potential for "forced deleveraging" occurs when a sudden price move triggers a cascade of liquidations. Because the basis is negative, the market may be heavily weighted toward hedged positions or short speculators who could be squeezed if spot prices move upward sharply. Conversely, the sheer volume of leverage means that any significant downward move could result in a rapid "flush out" of long positions that have accumulated during this period of high OI.

The current technical setup suggests that while the spot Bitcoin market maintains its valuation, the derivatives layer is stretched. Market participants are closely watching for a reduction in Open Interest as a signal that the market is returning to a more stable, less leveraged state. Until the basis returns to neutral or positive territory, the risk of a sharp, volatility-driven correction remains elevated.