Crypto Biz: Mining weakness tests Bitcoin’s market cycle Post author:MiamiCrypto Post published:December 5, 2025 Post category:Uncategorized Bitcoin miners face record margin pressure as proxy stocks sink, Kalshi lands $1B funding and Ether derivatives volumes overtake Bitcoin on CME. You Might Also Like Saylor’s Strategy buys $75.3M in BTC as prices briefly dip below $75K February 2, 2026 US Senate Finance Committee to discuss crypto tax matters next week September 25, 2025 SEC flags Bitcoin miner hosting services as subject to securities laws December 19, 2025