Key HighlightsFriday saw the Dow Jones climb 518 points (1%), while the S&P 500 and Nasdaq advanced 0.4% eachWeekly declines snapped three-week winning streaks for both the S&P 500 and NasdaqBitcoin surged to $77,000, posting its strongest weekly gain in 24 monthsTreasury market turbulence persisted despite Treasury Secretary Scott Bessent’s buyback initiative providing only temporary supportMarket focus shifts to Nvidia’s quarterly report and the Jackson Hole Symposium in the coming weekAmerican equities finished Friday’s session in positive territory, though the advance proved insufficient to offset weekly declines across major benchmarks. The Dow Jones Industrial Average surged 518 points, representing approximately a 1% gain. Both the S&P 500 and Nasdaq Composite climbed 0.4%.E-Mini S&P 500 Sep 26 (ES=F)The Friday rebound couldn’t prevent all three benchmarks from recording losses over the five-day period. These declines brought an end to three consecutive weeks of gains for the S&P 500 and Nasdaq.Market activity remained subdued throughout Friday’s afternoon session. Numerous traders seemingly departed ahead of schedule, with the Labor Day weekend looming and the summer season drawing to a close.Treasury Volatility Weighs on Equity MarketsFluctuations in the bond market emerged as a primary catalyst for this week’s market instability. On Thursday, Treasury Secretary Scott Bessent unveiled intentions to enhance the government’s bond repurchase initiative beyond the current $4 billion per issue threshold.You can't make this up:At 8:15 AM ET yesterday, the 10Y Note Yield was trading at 4.68% when the US Treasury announced it would be increasing bond buybacks to $4 billion.The yield fell to a low of 4.63% as the US Treasury pledged to provide "liquidity support."Exactly 24… https://t.co/SLNs0MfTgD pic.twitter.com/em738sU23Z— The Kobeissi Letter (@KobeissiLetter) August 20, 2026Bessent indicated the expansion aims to demonstrate that current yield levels don’t accurately represent economic fundamentals. Financial markets initially responded positively to this announcement.However, the optimism proved short-lived. Both 10-year and 30-year Treasury yields reverted to their previous elevated levels. Market participants interpreted the buyback expansion as a modest intervention rather than a comprehensive solution.Bessent has a press briefing scheduled for Monday. He’s anticipated to present the administration’s strategy for implementing economic sanctions against Iran amid the continuing Middle Eastern tensions.Earlier this week, President Trump issued warnings of severe economic repercussions for nations maintaining trade relationships with Iran. These remarks particularly highlighted China’s role as an oil importer from the region.Cryptocurrency Markets Shine Amid Stock WeaknessAs equities faced headwinds, Bitcoin delivered impressive gains. The digital currency advanced to $77,000, marking its most substantial weekly increase in two years.This rally occurred as market participants appeared to rotate into alternative investments during the equity market turbulence.The CBOE Volatility Index, commonly referenced as the VIX, hovered around 15 on Friday. This reading indicates market expectations of relatively stable conditions in the immediate future.BJ’s Wholesale Club delivered quarterly results surpassing analyst projections. The company attributed its performance to its value-oriented approach resonating with cost-conscious consumers.Attention now turns to Nvidia, which reports second-quarter financial results in the upcoming week. The semiconductor giant’s earnings carry significant weight given its pivotal position in artificial intelligence development.The Federal Reserve’s annual Jackson Hole Economic Policy Symposium also appears on next week’s agenda. This gathering frequently provides insight into the central bank’s evolving stance on monetary policy.Without significant economic releases this week, market participants concentrated on fixed-income dynamics, international relations, and digital assets. The coming week promises additional catalysts for market movements.The post Major Stock Indexes Break Winning Streak Amid Rising Treasury Yields and Bitcoin Rally appeared first on Blockonomi.