Bitcoin fell below $77,000 during Sunday’s trading session, trading near $76,725 after closing the previous session at approximately $77,300. The move represented a 0.80% decline and came as U.S. spot Bitcoin exchange-traded funds recorded $462.7 million in cumulative outflows between Sep. 8 and 11.

Rising Treasury yields and expectations that interest rates will remain elevated have increased the appeal of dollar-based assets, maintaining pressure on Bitcoin and the broader cryptocurrency market.

CryptoQuant analyst Darkfost said Bitcoin’s market sentiment indicator briefly exceeded 89 on a 100-point scale, reaching what he described as “extreme greed.” The reading was the highest recorded since March 2024.

The last time we saw such a bullish market sentiment was in March 2024. This Bitcoin rally has sparked the strongest investor enthusiasm in the past two years. This market sentiment index managed to reach a score above 89 out of 100, a value of extreme greed. — This index,… pic.twitter.com/Mv5SmDSLgz

— Darkfost (@Darkfost_Coc) September 12, 2026

https://x.com/Darkfost_Coc/status/2098670423323853133?ref_src=twsrc%5Etfw

Darkfost said sentiment indicators later moderated from their peak as Bitcoin attempted to hold its current valuation. He added that extreme readings, whether bullish or bearish, often occur near potential market inflection points, while offering no specific price forecast.

Alternative.me’s independent Fear & Greed Index stood at 63, classified as “greed,” during the reporting period. The index incorporates volatility, transaction volume, social media activity and online search data.

Spot Bitcoin ETF outflows

U.S. spot Bitcoin ETFs posted aggregate outflows of $462.7 million during the four trading days from Sep. 8 through 11, according to Farside analytics. Every trading day in that period recorded negative net flows.

JUST IN: Bitcoin ETFs sold $463M this week. BTC fell a modest 3%. pic.twitter.com/Cfz6Q57MME

— Bitcoin Archive (@BitcoinArchive) September 12, 2026

https://x.com/BitcoinArchive/status/2098730789957480931?ref_src=twsrc%5Etfw

Thursday recorded the largest single-day outflow, at $282.7 million. ARK 21Shares’ ARKB experienced the largest fund-level decline, with $234.2 million in weekly outflows. BlackRock’s IBIT recorded $52.5 million in outflows over the four-day period.

Market analyst Ted Pillows raised concerns about Bitcoin’s weekly chart, writing that Bitcoin’s “$BTC weekly candle looks really bad” and warning that “if a weekly close happens like this, sellers will gain control.”

$BTC weekly candle looks really bad. If a weekly close will happen like this, sellers will gain control. pic.twitter.com/mf033Kmapt

— Ted (@TedPillows) September 13, 2026

https://x.com/TedPillows/status/2099061032647799240?ref_src=twsrc%5Etfw

Bitcoin in investment portfolios

Bitcoin Suisse’s Crypto Wealth Management Report 2026 argued that Bitcoin can provide benefits to traditional investment portfolios. The organization said artificial intelligence investment has concentrated exposure among a limited number of technology companies, while U.S. federal debt has exceeded $40 trillion. It contended that fixed-income assets therefore no longer provide their historical diversification benefits.

According to Bitcoin Suisse’s analysis, adding a 1% Bitcoin allocation funded by reducing bond exposure would increase annualized portfolio returns from 6.2% to 7.2%. A 2.5% allocation would raise the projected annualized return to 8.6%.

Leading U.S. hyperscale infrastructure providers are projected to spend more than $800 billion on artificial intelligence initiatives in 2026 and more than $1 trillion during 2027.

U.S. consumer prices increased 3.4% in the 12 months through August, matching July’s reading. The Federal Reserve’s next monetary policy meeting is scheduled for Sep. 15–16.

Bitcoin traded within an approximate 24-hour range of $76,393 to $79,607 on Sunday, with its price near the lower end of that range during the reporting period.