Bitcoin and Ethereum Rise as Brian Armstrong Maintains $400K BTC Target

On Tuesday, September 29, 2026, Bitcoin (BTC-USD) opened at $83,488—down 1.1% from Monday’s open—before climbing to $83,961.10 by 7:06 a.m. ET. Simultaneously, Ethereum (ETH-USD) opened flat at $2,687.61 and later rose to $2,715.40. Both digital assets faced macroeconomic pressure from surging U.S. Treasury yields and Federal Reserve rate hike concerns.

The Bottom Line

  • Intraday Recovery: Bitcoin recovered from early Asian-hour lows near $83,100, while Ethereum found a strong operational floor around $2,680 to $2,715.
  • Institutional Inflows: U.S. spot Bitcoin and Ethereum exchange-traded funds extended net inflow streaks, led by major issuers like BlackRock (NYSE: BLK).
  • Long-Term Forecasts: Despite near-term macroeconomic headwinds, Brian Armstrong maintains a $400,000 long-term price target for Bitcoin by 2030.

Macroeconomic Pressures and Treasury Yield Volatility

Financial markets on Tuesday, September 29, 2026, remained tightly focused on broader economic indicators. The 10-year U.S. Treasury yield touched its highest level since 2007, creating capital pressure across high-beta risk assets. Alongside rising oil prices, these macroeconomic headwinds forced traders to reevaluate aggressive positions. According to market data from Yahoo Finance, Bitcoin’s opening price of $83,488 reflected a 3.6% decline over the preceding week, though it retained a 7.3% gain over a thirty-day window. Its all-time high remains $128,198.07, recorded on October 6, 2025.

Here is the math: while immediate yield pressures slowed down crypto momentum, spot market support held the line. Ethereum opened at $2,687.61, showing relative resilience compared to smaller-cap altcoins. Over a one-week period, Ethereum dipped 3.2%, yet it preserved a 10% gain over the trailing month, tracking well below its all-time high of $4,953.73 set on August 24, 2025.

Institutional Inflows Propel Spot ETFs

But the balance sheet tells a different story regarding institutional appetite. Despite macroeconomic friction, regulated U.S. spot exchange-traded funds continued to absorb capital. U.S. spot Bitcoin ETFs registered approximately $31.07 million in net inflows, marking an eight-session streak of positive accumulation. BlackRock’s (NYSE: BLK) IBIT spearheaded daily inflows with about $54.84 million, counterbalancing outflows from competing products such as Grayscale’s (NYSE: GBTC) fund.

A similar trend played out in the Ethereum ecosystem. U.S. spot Ethereum ETFs recorded a net inflow of $17.1 million, securing their seventh session of net inflows. BlackRock’s (NYSE: BLK) ETHA accounted for $15.3539 million of that daily figure, pushing total ETF net assets to approximately $17.692 billion. These inflows indicate that institutional allocators continue to build structural exposure despite persistent interest rate anxiety.

Long-Term Valuations and Executive Forecasts

Looking past immediate trading ranges, long-term projections continue to spark debate across traditional and digital finance. During a recent interview on “Money Rehab with Nicole Lapin,” Brian Armstrong reiterated his stance that Bitcoin could reach $400,000 by 2030. Armstrong noted that the figure represents a plausible outcome if historical market cycles repeat, while emphasizing that he cannot predict exact future valuations.

That target requires a massive expansion from current trading levels in the mid-$80,000 range. While Armstrong previously floated a $1 million milestone by 2030 during 2025, his latest statements frame the $400,000 projection as an analytical scenario rather than an official corporate forecast from Coinbase. As digital assets navigate changing Federal Reserve policies, the divergence between near-term macro volatility and long-term institutional accumulation will dictate price action.

Digital Asset Opening Price (Sept 29, 2026) 7-Day Change 30-Day Change All-Time High
Bitcoin (BTC-USD) $83,488 -3.6% +7.3% $128,198.07 (Oct 6, 2025)
Ethereum (ETH-USD) $2,687.61 -3.2% +10% $4,953.73 (Aug 24, 2025)

Disclaimer: The information provided in this article is for educational and informational purposes only and does not constitute financial advice.

The Rise of Brian Armstrong From Visionary to Crypto Billionaire
Photo of author

Alexandra Hartman Editor-in-Chief

Editor-in-Chief Prize-winning journalist with over 20 years of international news experience. Alexandra leads the editorial team, ensuring every story meets the highest standards of accuracy and journalistic integrity.

Sun Pharma Plans $1 Billion Rupee Debt Sale for Organon Loan Takeout