CryptoSlate
Bitcoin's derivatives market turned more constructive over the past week even as spot traders stayed on the sidelines, leaving the market split between speculative bullish positioning and real demand that has not yet followed. Glassnode's latest Market Pulse showed the 25-delta options skew swinging to -2.05% from +0.79%, a reversal that means calls are now relatively more expensive than puts. That positioning shift was reinforced by US spot Bitcoin ETF net inflows of $681.2 million for the week, up from $247.8 million the prior week. Spot itself has not confirmed the move: Bitcoin traded around $78,800 on Tuesday after failing to hold above $80,000.
Why it matters
The divergence matters because a derivatives market leaning bullish while spot remains a seller's market is a familiar pre-breakout setup, but only when spot eventually catches up. Glassnode's spot cumulative volume delta (CVD) improved sharply from -$84.9 million but is still negative at -$29.6 million, meaning aggressive market selling still outweighs buying on major centralized exchanges. Until that flips, the bullish options and ETF positioning is paying for a move that the underlying market is not yet demanding.
Market impact
Perpetuals show similar hesitation. Perpetual CVD stayed negative at -$176 while long-side funding payments declined, suggesting leveraged traders are getting less willing to pay a premium for bullish exposure even as futures open interest remains elevated at $37 billion. The path from here is binary: if spot CVD turns positive while ETF inflows hold above current pace, the derivatives bid has real confirmation. If spot selling persists, options traders may be left positioned for a breakout that the underlying market refuses to deliver.
Frequently asked questions
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What does the 25-delta skew mean for Bitcoin's options market?
A negative skew means calls are priced at a premium to puts, signaling greater demand for upside exposure. The move from +0.79% to -2.05% marks a clear shift from defensive to constructive positioning.
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How much did US spot Bitcoin ETFs pull in last week?
US spot BTC ETFs attracted $681.2 million in net inflows over the latest weekly observation, up from $247.8 million the prior week. The increase adds institutional capital behind the bullish derivatives setup.
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What is spot CVD and why does it matter here?
Spot cumulative volume delta tracks the balance between aggressive market buying and selling on exchanges. Glassnode's reading improved from -$84.9M to -$29.6M, but the negative value still means sellers are dominating executed spot flow.
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Why are perpetual futures traders less willing to pay for longs?
Perpetual CVD stayed negative at -$176 and long-side funding payments declined, meaning leveraged traders are getting less willing to pay a premium for bullish exposure. Open interest remains elevated at $37B, so they have not abandoned the trade either.
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What would confirm the bullish derivatives setup?
Spot CVD would need to flip positive while ETF inflows hold above the current pace. If spot selling persists, options traders could find themselves positioned for a breakout that the underlying market still refuses to support.
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