When Bitcoin reaches a new high, other major cryptocurrencies like Ethereum and Litecoin often show some degree of price linkage. Ethereum, being the second - largest cryptocurrency, usually follows Bitcoin's upward trend to some extent. However, the magnitude of the increase may vary. Litecoin may also experience price increases, but its market cap and influence are smaller, so the price change may not be as significant as Ethereum's. The linkage occurs because they are all part of the cryptocurrency market, and a positive sentiment towards Bitcoin often spills over to other cryptocurrencies.