According to @BitMEXResearch, a new long read by @izakaminska at The Blind Spot recounts how crypto's hottest derivative came to be and is recommended for traders to review, highlighting its market significance. source: BitMEX Research on X Dec 11 2025; The Blind Spot by Izabella Kaminska the-blindspot.com For trading context, the product in focus is the BTC perpetual swap, a no-expiry futures contract pioneered by BitMEX in 2016 that introduced funding rate payments to keep the contract aligned with spot prices. source: BitMEX Blog The Perpetual Contract 2016 blog.bitmex.com; BitMEX Docs Perpetual Contracts bitmex.com Actionable signal 1: sustained positive funding typically reflects crowded longs and potential mean-reversion risk, while negative funding signals short crowding; monitoring funding and open interest can help time entries and hedges in BTC perps. source: BitMEX Docs Funding Rate bitmex.com; Binance Futures Education funding rate guide binance.com Actionable signal 2: high available leverage in perps has historically amplified liquidation cascades, so traders should track liquidation metrics, insurance fund levels, and auto-deleveraging indicators during volatility. source: BitMEX Docs Leverage and Liquidation bitmex.com; BitMEX Insurance Fund resources bitmex.com