When Bitcoin Cash and Bitcoin SV halve their block rewards, this should force miners to direct even more hash power to Bitcoin as it will still have a 12.5 native unit block reward (instead of 6.25) for about a month longer. Therefore, we should expect difficulty increases for Bitcoin that should further squeeze profit margins for all miners.
It is concerning that miners are in a state of capitulation even before the halving. Once the block reward halves, miner revenue will be cut in half while miner costs will remain constant, so we expect even more miners to capitulate in the months ahead.
Miner capitulation increases selling pressure until inefficient miners are forced off the network, but in the long run these events are supportive for prices. Culling inefficient miners allows only the most efficient miners with the lowest cost of production to remain. Once inefficient miners exit the network, profit margins will improve for the remaining miners, which reduces selling pressure, increases prices, and should repeat in a virtuous cycle. Eventually, if prices bottom and recover, the pro-cyclical behavior of remaining miners should support further price increases.
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Coin Metrics' State of the Network: Issue 44