Why did Bitcoin hit $80,000 and Solana jump 8% this week?

Bitcoin reached the $80,000 milestone fueled by the U.S. Treasury’s bond-buyback expansion, while Solana surged 8% as validators moved to decrease token supply. While these factors drove a 25% weekly gain for BTC, analysts are now warning that the market may be entering overbought territory.
Why did Bitcoin hit $80,000 and Solana jump 8% this week?

Bitcoin’s climb past the $80,000 mark and Solana’s 8% rally were driven by a combination of U.S. macro liquidity shifts and specific network governance votes. The primary catalyst for Bitcoin was the U.S. Treasury’s decision to expand its bond-buyback program, a move that effectively injects liquidity into the financial system and encourages investment in risk-on assets like crypto. Simultaneously, Solana led major altcoins higher as its validator community began voting on proposals designed to slow new SOL issuance and increase daily token burns, creating a more deflationary supply dynamic.

The U.S. Treasury’s bond-buyback expansion is a significant tailwind for the broader crypto market. By purchasing older, less liquid debt, the Treasury improves market functioning and lowers the upward pressure on yields, which historically benefits Bitcoin. This fundamental shift helped BTC secure a 25% gain over the course of a single week, signaling strong institutional and retail demand as the asset enters price discovery mode.

For Solana, the price action is tied directly to internal network economics. The current validator proposals aim to optimize the long-term value of the SOL token by tightening the supply schedule. If passed, these measures would reduce the rate at which new SOL enters circulation while simultaneously increasing the amount of SOL removed from the market through transaction fee burns. This governance-driven scarcity narrative has provided SOL with the momentum to outperform other top-tier layer-1 blockchains.

However, investors should remain cautious as technical indicators suggest the rally may be reaching a temporary exhaustion point. Several market analysts have issued 'overbought' warnings, noting that the rapid price appreciation has pushed relative strength indicators to extreme levels. In the coming days, traders should monitor U.S. economic data releases and the final results of the Solana validator vote, as these will likely determine if the current momentum can be sustained or if a healthy correction is imminent.