At the time of writing, Bitcoin’s value was fluctuating at around $67,921.67, or £50,107 according to Coinbase.
By late 2010, the first of what would eventually be dozens of similar cryptocurrencies — including popular alternatives like Litecoin — began appearing. The first public Bitcoin exchanges appeared around this time as well.

We also consider two additional factors that account for the finding that in some periods prices drift away from fundamentals. The first factor is the return of Bitcoin. We argue that Bitcoin, being the largest and most traded cryptocurrency, is the most perceptible to sentiment and speculative trading by investors. Thus, as a factor, it can capture periods when trading forces unrelated to fundamentals are the strongest. The second factor is a cryptocurrency price momentum factor that we construct following the seminal work of Jegadeesh and Titman (1993). Momentum effects have been linked to investor psychology (e.g. Barberis et al. 1998).
Jack Purdy, a senior research analyst at crypto analysis firm Messari Inc., said that while he didn’t know how risky SafeMoon might be, its website makes it clear that it’s designed to get investors to buy and hold to “earn passive rewards through static reflection as they watch their balance of SafeMoon grow indefinitely.”