Bitcoin Breaks Below $84K Support as US Treasury Yields Surge

Key Support Level Breached

On September 23, Bitcoin's price came under heavy pressure from macroeconomic data, falling to an intraday low of $83,500 — breaching the critical on-chain support zone between $84,000 and $85,000, according to Woofun AI.

Macroeconomic Drivers

The price decline was not an isolated event. Its primary catalyst was a sharp rise in the U.S. 10-year Treasury bond yield, which closed at 5.11%, up 15 basis points in a single day.

S&P Global's (SPGI.US) September PMI data significantly exceeded expectations, forcing the market to reassess interest rate trajectories. This led to a jump in real yields (adjusted for inflation) from 2.63% to 2.76%.

Given that the Federal Reserve raised interest rates to a target range of 3.75% to 4.00% on September 16, the strong economic expansion has reduced the scope for further rate cuts, significantly increasing the opportunity cost of holding Bitcoin — a non-yielding asset.

Market Microstructure: Leverage Wipeout

The breakdown below the key support zone triggered a violent deleveraging event:

• CoinGlass data shows that approximately $280 million in long positions were forcibly liquidated on the same day as BTC prices dropped.
• Glassnode's September 23 report identified the $84,000 to $85,000 range as the core support zone, where the highest concentration of long-term holders is located.
• The $77,000 level is defined as the "real market mean." If prices continue to lose ground below $84,000, this level becomes the primary downside reference point.

Resistance and Key Levels

• Upside resistance is defined by the MVRV average price at $96,700.
• At the current price of approximately $84,282:
• The $77,000 level is roughly 8.6% lower.
• The $96,700 level is roughly 14.7% higher.

Bond Market Dynamics

The core variable driving bond market volatility was the S&P Global September PMI Composite Index, which rose from 56.0 to 58.4:

• Services Index: 58.7
• Manufacturing Index: 57.0

This represents the strongest expansion since July 2021. Following the data release:

• The 10-year Treasury yield quickly rose from 5.058% to 5.11%.
• Real yields (adjusted for expected inflation) rose by 13 basis points, with the remaining 2 basis points attributed to other factors.
• The 10-year breakeven inflation rate edged up from 2.33% to 2.35%.

According to Woofun AI, the transmission mechanism of this macro headwind is that investors demand higher inflation-adjusted returns, compressing the valuation space for risk assets.

ETF Inflows Show Resilience

Despite the challenging macro environment, capital flows displayed notable resilience:

Glassnode demand data shows that within five days of the recent market pullback, Bitcoin spot ETFs attracted approximately $1.3 billion in inflows, reversing two weeks of prior outflows.

Farside Investors data provides further detail:

• September 21: $999 million in ETF inflows
• September 22: $714.7 million in ETF inflows
• September 23: $346.9 million in ETF inflows

Notable individual ETF flows on September 22:

• IBIT (IBIT.US): $350.3 million
• FBTC (FBTC.US): $257.4 million
• MSBT: $99 million

Although bond markets sold off on Wednesday (September 23), ETF inflows continued, albeit at a slower pace than Tuesday.

Trading Volume Surge

• 24-hour spot trading volume across exchanges increased by 121% compared to August's lowest levels, indicating a significant rebound in market activity.
• Glassnode's on-chain and ETF-related analysis covers data up to September 21, while spot trading volume data extends to September 22.
• These high-frequency data points collectively depict institutional capital positioning counter-cyclically amid volatility.

Outlook: Options Expiry vs. Macro Data

The market direction in the coming days will hinge on the interplay between options expiry and macroeconomic data:

• Friday: Approximately $16 billion in Bitcoin options will expire on the Deribit platform.
• This will be followed by the release of U.S. durable goods orders and consumer sentiment data.
• In the afternoon, the CME (CME.US) September Bitcoin futures settlement will take place.

Bullish Scenario

• The 10-year real yield falls back to around 2.65%.
• ETF inflows remain positive.
• As long as daily closing prices hold within the $84,000 to $85,000 range, buying pressure can withstand macro headwinds.
• Market focus shifts to the $95,000 to $97,000 zone, with the $96,700 resistance level serving as a key test for upside potential.

Bearish Scenario

• The market prices in a longer period of Fed tightening.
• The 10-year real yield rises to 2.85% to 2.90%.
• Closing prices consistently fall below the support zone.
• The $77,000 "real market mean" becomes the downside target.
• Long-term holders in the $84,000 range may turn into supply pressure.

The coming days' closing prices and real yield trends will determine whether the market first reaches $77,000 or $96,700.