Bitcoin\u2019s six-week collapse has erased over $40,000 from its price, yet\u2014according to Jeff Park, CIO at ProCap BTC and Bitwise advisor\u2014the more important story may lie not in spot markets but in volatility.<\/p>\n
In his November 22 Substack post<\/a> \u201cWhere Does Bitcoin Go From Here?\u201d, Park argues that \u201cmarket structure has flipped sharply negative,\u201d citing ETF outflows, the Coinbase discount, structural selling, and liquidations of over-levered longs. But beneath that surface stress, he says, \u201csomething in the structure of Bitcoin\u2019s volatility markets is stirring again\u2014something that looks more like the old Bitcoin, not the new one.\u201d<\/p>\n For nearly two years, the consensus has been that the ETF era \u201ctamed Bitcoin\u201d and \u201ccrushed volatility.\u201d Spot ETFs channeled institutional flows into volatility-muting structures, dampening the wild swings that once defined BTC. Yet Park notes that over the last 60 days, implied volatility (IV) has trended higher for the first time in 2025. Even more telling: IV kept rising while spot fell\u2014an uncommon dynamic since ETFs launched<\/a>. That, he says, \u201cmight be the first signal of a regime shift\u201d back toward pre-ETF market behavior.<\/p>\n Historical context sharpens his point. Between 2021 and 2022, IV spiked repeatedly\u2014156% during China\u2019s mining ban, 114% in the Luna\/UST collapse<\/a>, and again in the 3AC and FTX crises<\/a>. Since FTX, volatility \u201chas never traded above 80%,\u201d and vol-of-vol (the \u201cvelocity\u201d of volatility itself) has remained below 100, a post-ETF pattern of subdued convexity. But the latest upward drift, Park argues, suggests that the \u201cconvex, breakaway vol behavior\u201d that once defined Bitcoin could be re-emerging.<\/p>\n That shift carries structural implications. During past crises, put skew widened sharply, reaching \u201325%. But Park highlights an opposite kind of stress test\u2014January 2021\u2014when call skew surged above +50% and triggered Bitcoin\u2019s last \u201cmega-gamma squeeze.\u201d Dealers short call gamma were forced to buy spot into a rising market, pushing BTC from $20,000 to $40,000 in weeks. It was, he recalls, \u201cthe first time Deribit saw record retail flows as traders discovered the power of OTM calls.\u201d<\/p>\n Today\u2019s skew data looks different but potentially telling. \u201cThe 30-day put skew is the lowest it has been all year,\u201d Park writes, suggesting defensive premiums are elevated and \u201cfurther volatility to the downside is not unwarranted.\u201d Yet Deribit\u2019s open interest shows a market still leaning bullish in notional terms.<\/p>\nSudden Twist In Bitcoin Skew Has Expert On High Alert<\/h2>\n