Bitcoin's derivatives market is bracing for a major shake-up: on January 30th, roughly $8.27 billion in BTC options contracts are set to expire—the biggest blow-off of the entire year. When this kind of notional value unwinds all at once, it typically sends shockwaves through the market. Traders should mark their calendars and prepare for heightened price swings as positions get cleared and new ones establish. This is the kind of event that can move things in either direction, so keep your risk management tight.