Bitcoinist.net:

bitcoin mining profitability

Post halving, Bitcoin miners will continue to reap profits, only if BTC hits a price range of $12,000 – $15,000. 

BTC Miner Breakeven Requires Even Higher Market Valuations
To preserve the current levels of mining, Bitcoin (BTC) market prices would have to be between $14,000 and $15,000. Miners right now break even roughly between $3,500 and $7,000 depending on electricity costs. But the Bitcoin network remains highly competitive, recently marking a 125 quintillion hashes per second as record activity level.
At there high mining levels, and even with BTC prices close to $10,000, mining breakeven is problematic. Even the S17 rig, one of the newest and most powerful, cannot break even at these prices. The interesting thing is, that miners are keeping up even if most of their rigs are not profitable.
A mix of low electricity costs and…

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Source: https://bitcoinist.com/bitcoin-mining-profitable-after-halving-usd-15k-btc/