Global markets face a trillions-of-dollars quarterly derivatives event on Friday, known as quadruple witching. Stock index futures, stock index options, single-stock futures, and single-stock options all expire simultaneously, forcing traders to close, roll, or settle positions in a compressed window. Trading activity typically surges, and price swings often intensify.
While exact figures for the March 2026 expiration remain unpublished, recent history illustrates the scale: roughly $4.7 trillion in equity and index derivatives expired in March 2025. According to TradeStation, that day saw the highest S&P 500 trading volume of the year. Institutions often rebalance portfolios, unwind hedges, and adjust risk exposures within a short window, with the bulk of activity concentrated in the final hour of trading.
Current backdrop: geopolitical tension and elevated VIX
This quarter's expiry arrives during an already volatile environment. Conflict in the Middle East has pushed oil to $120 per barrel, gold slipped below $4,600, and Bitcoin fell under $69,000. The VIX volatility index jumped above 35 last week — the highest in a year — signaling heightened stress across financial markets.
Though quadruple witching originates in traditional finance, its impact spills into crypto. Bitcoin increasingly trades alongside broader risk assets, meaning sharp equity moves often ripple into digital markets. Cole Kennelly, CEO of Volmex Finance, commented: "Quadruple witching could trigger a spike in cross-asset volatility as large derivatives positions expire. This may already be showing up in crypto, with the Bitcoin Volmex Implied Volatility (BVIV) Index trending higher into the event."
How Bitcoin performed on quadruple witching days in 2025
Looking back at 2025's four quarterly expiries, Bitcoin's price action on the day was relatively muted, but the days to weeks that followed often saw weakness:
On March 21, Bitcoin edged lower but the real drop came weeks later, bottoming around $76,000 after the "Liberation Day" tariffs. On June 20, Bitcoin declined 1.5% and continued drifting lower, reaching a local bottom near $98,000 two days later. On September 19, Bitcoin fell over 1% on the day, but then plunged from $177,000 to $108,000 within a week. On December 19, Bitcoin actually closed 3% higher around $85,000, yet remained in a broader drawdown from October highs.
While intraday volatility on quadruple witching itself tends to be limited, the historical pattern points to downside risks in the subsequent weeks.