Bitcoin-related coins all rise at once, hitting new record highs for three consecutive days

While Bitcoin has been hitting new highs for three consecutive days and showing a "sharp upward trend," altcoins classified as "Bitcoin-related" virtual currencies have also recorded an upward trend.
At 1:50 p.m. on the 21st, the price of Bitcoin rose 5.5% from the same time the previous day to 136.7 million won (about 15.05 million yen) on Upbit.
Among altcoins, meaning virtual currencies other than Bitcoin, the top three in terms of increase rate at the current time are Bitcoin Gold, Bitcoin Cash, and Bitcoin
The price of Bitcoin Gold rose 20% from the previous day to the 53,000 won (about 5,800 yen), while the price of Bitcoin Cash rose 16% to 690,000 won.
The price of Bitcoin rose 14% to the 106,700 won (approximately 11,800 yen) range, while the price of Bitcoin SV rose 14% to the 106,700 won (approximately 11,800 yen) range.
Rather than all three cryptocurrencies having their own reasons for price increases, it is more likely that the strength of Bitcoin will lead to a "cyclical"
It is interpreted as being influenced by the "circular buying market." All three virtual currencies are hard forks (separated) from the Bitcoin blockchain.
The market capitalization of Bitcoin Gold is 810 billion won (approximately 89 billion yen), and that of Bitcoin Cash is 12.1 trillion won.
The market capitalization of the cryptocurrency is 1.3 trillion won (approximately 1.333 trillion yen), and Bitcoin SV's market capitalization is 1.9 trillion won (approximately 209 billion yen).