A bull run refers to a prolonged phase of sustained price increase in the cryptocurrency market. During a bull run, demand increases sharply, investors show marked optimism, and the value of most digital assets experiences spectacular increases, often accompanied by a massive influx of new entrants.

The term "bull" comes from traditional finance, where the term bull market is used, in contrast to the bear market. The bull attacks by raising its head upward — a symbol of rising prices.

Characteristics of a crypto bull run:

• Rapid and significant increase in Bitcoin prices, often driving the cycle,

• Sharp rise in altcoins (sometimes referred to as altseason),

• Increase in trading volumes and media coverage,

• Collective enthusiasm, sometimes euphoria or excessive speculation.

Historical examples:

• 2017: explosive rise of Bitcoin’s price above $19,000 and a boom in ICOs.

• 2020–2021: Bitcoin crosses $60,000, institutional adoption, rise of DeFi and NFTs.

A bull run offers opportunities for significant gains, but it also comes with increased risks of sharp corrections when the speculative bubble bursts.