OKEx Skips Warren Buffett Lunch, Donates $4.5M to Insurance Fund n OKEx has revealed its contribution to the perpetual swap market insurance, whose amount is equivalent to the cost of the lunch with Warren Buffettn CryptScout #BitFeed RSS – Bitcoin and Cryptocurrency News 24/7 $4.5M, Buffett, Donates, fund, Insurance, Lunch, OKEx, Skips, Warren