Explainer-Bitcoin's 'halving': what is it and does it matter?

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Community Bankers Trust Corp (NYSE: BTC) Delayed: 28.43 +0.62 (2.23%)
Previous Close $27.81    52 Week High $3.45 
Open $28.03    52 Week Low $1.62 
Day High $28.56    P/E 177.69 
Day Low $28.03    EPS $0.16 
Volume 1,270,592