[DigitalToday reporter Yesle Kim] Billionaire investor Jeremy Grantham (제러미 그랜섬) argued that bitcoin will lose interest over the long term and eventually converge to zero.

Bitcoin Magazine reported on June 26 that Grantham recently appeared on CNBC's Squawk Box and described bitcoin as a "useless speculative mechanism," saying it will fade away.

Grantham said he has never owned bitcoin. He also said bitcoin will lose its presence as interest weakens over years and decades. He also said, "All bitcoin does is let scammers move money."

He also rebutted the claim that bitcoin is a store of value. He cited its instability, saying it is volatile enough to be cut in half for no special reason even in a strong economy. He said gold, by contrast, posted a solid rise over the same period.

Bitcoin fell more than 50 percent after hitting a record high near $126,000 in 2025. It traded in the $60,000 range on June 26, testing a key support zone. Analysis also emerged that it could fall to the $40,000 range if that zone breaks.

In mid-June it slid to around $62,000. Hawkish signals from the U.S. Federal Reserve pressured risk-asset markets, and oil prices rose on geopolitical tensions between the United States and Iran, reviving inflation concerns. U.S. spot bitcoin exchange-traded funds (ETFs) saw net outflows for four straight sessions totaling about $113.8 million.

Technically, the 200-day moving average acted as resistance. Bitcoin failed to break above that level during a rebound and then fell about 30 percent. This correction was presented as the fifth-largest in bitcoin's history. Coinbase said major institutional investors bought during this decline.

Mexican billionaire Ricardo Salinas Pliego, by contrast, allocates 70 percent of his investment portfolio to bitcoin. That is a sharp increase from 10 percent in 2020. He sees bitcoin as better than cash and gold because it cannot be seized and has no border constraints.

His conviction held despite a $150 million loan fraud, regulatory pushback and several market cycles. He said a London home that required 4,000 BTC in 2016 now costs less than 30 BTC, and urged ordinary investors to switch housing assets into bitcoin exposure.