This week, Bitcoin saw a significant increase in bullish momentum, taking its price from $78,000 to $82,855. Although the flagship cryptocurrency has pulled back from this local high, it has not yet moved into a bearish structure. Interestingly, a recent on-chain analysis revealed significant growth in derivatives activity in the Bitcoin market.
Open interest in Bitcoin climbs on major exchanges
In a recent Quicktake article on the CryptoQuant platform, pseudonymous analyst Darkfost revealed an interesting change in Bitcoin’s participation in the derivatives market. This on-chain observation is based on the Open Interest metric.
Open Interest refers to the total number of active futures contracts held by traders in the market. Rising open interest is often interpreted as a sign that new capital is entering derivatives markets, particularly during periods of strengthening price momentum.
It’s worth noting that Bitcoin’s open interest just increased by the largest margin since the start of 2026, despite funding rates remaining in negative territory, as they have for the past two weeks.
According to Darkfost, Bitcoin’s latest open interest growth has already surpassed the levels seen during Bitcoin’s previous all-time high in 2025. Thus, it becomes more evident that market participation on exchanges has indeed been positive.
Source: CryptoQuant
Binance Sees $2.5 Billion in Open Interest, Leads Other Major Exchanges
The crypto analyst then highlighted Binance’s role in the dynamics currently at play. As Darkfost explains, around 34% of the market share is held by Binance, the world’s leading cryptocurrency exchange in terms of trading volume.
As of May 5, the exchange reported an average monthly open interest of approximately $2.5 billion. Other exchanges were also cited in the Quicktake article, with Gate.io reporting open interest growth of around $1.75 billion.
Bybit then followed in the Open Interest rankings, with an average Open Interest of around $1.15 billion. According to Darkfost, these figures recorded by the cited exchanges reflect growing optimism in the Bitcoin market, in contrast to the conditions observed at the start of the year.
When optimism grows, it usually prompts traders to increase their risk exposure again. However, Darkfost noted that this could make the BTC market more fragile, as large groups of long or short positions become vulnerable to liquidation events.
When prices move sharply against overleveraged traders, forced liquidations can accelerate volatility and amplify price swings in either direction. Therefore, although rising Open Interest may be beneficial for the Bitcoin price, market participants should remain cautious of sudden spikes in volatility.
At the time of writing, Bitcoin is valued at around $80,265, up 0.5% from yesterday.
The price of BTC on the daily timeframe | Source: BTCUSDT chart on TradingView
Featured image from iStock, chart from TradingView
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