The day's price movement began at roughly 12:20 UTC, but accelerated at 14:00 UTC when the price jumped from $243.01 to $246.15 over a 15-minute span.
The daily high was reached at 15:30 before prices began to edge downward. The price at press time, according to the BPI, is $245.96.
Article : http://www.coindesk.com/bitcoin-price-hits-highest-level-since-august/
What could be the reason in your opinion , if you ask me .; It's all about that Gemini exchange .
Probably one main reason for this is the Gemini exchange its been helpful in the past couple of weeks I have observed it.