The closing price for Bitcoin (BTC) in September 2011 was $4.78, on September 30, 2011. It was down 41.7% for the month.
The closing price for Bitcoin (BTC) in September 2011 was $4.78, on September 30, 2011. It was down 41.7% for the month.
Daily pricing data for Bitcoin dates back to 7/17/2010, and may be incomplete.