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).
Although few cryptocurrencies other than Bitcoin are widely accepted for merchant payments, increasingly active exchanges allow holders to exchange them for Bitcoin or fiat currencies — providing critical liquidity and flexibility. Since the late 2010s, big business and institutional investors have closely watched what they call the “crypto space” too.

There is no publicly available information about what percentage of assets held by the exchange are kept in secure, offline cold storage vs. online hot wallets, or if there is an insurance policy that protects investors. You must have a Binance.US account to send queries to the help desk, so we were unable to get more information that way.
GARY GENSLER: This asset class is rife with fraud, scams and abuses in certain applications. There's a great deal of hype and spin about how crypto assets work.