http://invest7xci3j4tfs37zeyxylwmhfnl2nvfbf6geos4xxeh3ejmzntfid.onion/bitcoin-miner/index28.html
While Bitmain is still the absolute leader in terms of size and product sales, the company is clearly lagging behind on performance of its core products. Innosilicon, Canaan, Bitfury, Whatsminer (started by the same engineer designed S7 and S9), and others are quickly catching up, compressing margins for all players.