A 63% retrace from the 10k BTC price is possible, putting buy opportunity around $4700-5300. I've been expecting this retrace to happen, but looking at the 1H charts, it appears we're still Bullish with a bull pennant forming, which signals a continued rise.
It's very possible we may see this rally continue through the end of the year.
Remain cautious, HODL.
Remember 2013 and that our earlier ATH was achieved on Nov 30th @ $1171, with a re-test achieving $1175 on Dec 4th before we entered into a 2 year downtrend where bitcoin hit a low of around $100 when we got Goxxed at Mt. Gox.