Stock Movers: Gainers, decliners and most actives market activity tables are a combination of NYSE, Nasdaq, NYSE American and NYSE Arca listings. Sources: FactSet, Dow Jones Convert Ƀ 0.2 Bitcoin to US Dollar with today Exchange rate SMA is the average of the closing USD price of an asset - Bitcoin over a given number of periods. The 200-day simple moving average (SMA) is one of the most-watched activities in the price charts. There are two basic signals in relation to the moving average: Nakamoto created the first Bitcoin on January 3, 2009. Bitcoin was initially mined among tech enthusiasts until the first trading markets for Bitcoin emerged in July 2010, with prices then ranging from US$0.0008 and $0.08. By then, Nakamoto transferred Bitcoin’s my explanation network alert key and control of the code repository to Gavin Andresen, who became lead developer at the Bitcoin Foundation.