But how did price do? Quite fine, here's the 4-hour chart from Finex:
The inflation rate of bitcoin is now 4.08% rather than the over 7% it was with 25 BTC block reward. This is a nice decline which will reduce selling pressure in the market for miners getting fresh coins. Last time we had the halving of block reward from 50 to 25, the price mooned significantly in late 2012 and through 2013 where we bubbled to over $1,000 on Chinese adoption.
It's not sure that we will experience this kind of move again on this halving, but traders are certainly on guard.