Key Takeaways
How serious is the current crypto market sell-off?
Bitcoin and Ethereum are both down 11% in the past seven days, and altcoins have suffered even bigger losses.
What does investor sentiment look like?
The Crypto Fear & Greed Index has crashed to 28, extreme fear territory, and the lowest reading in over a month.
Bitcoin’s fourth straight day of decline has increased fear in the market, pushing the broader crypto sector into fear territory.
Ethereum [ETH] and most altcoins have mirrored the downtrend, wiping out a week’s worth of gains as traders brace for a possible further downside.
Bitcoin and Ethereum are down more than 10% in seven days
According to CoinMarketCap data, Bitcoin [BTC] has lost almost 11% over the past week and is down to around $104,000 at the time of writing.
This move extends the correction from the $125,000 peak reached earlier this month. It brings it dangerously close to the psychological level of $100,000, a zone last tested in June 2025.
Ethereum has done slightly better. The second-largest cryptocurrency has also fallen about 11% to trade around $3,700 after failing to maintain momentum above $4,300 earlier in October.
Four straight days of red candles now threaten to drag ETH back into the $3,000 range unless buyer demand returns.
The Altcoin market is struggling to hold on
The broader altcoin market has been hit even harder than Bitcoin and Ethereum. According to CoinMarketCap, several leading assets have recorded double-digit losses over the past week.
Cardano is among the top 20 cryptocurrencies [ADA] Dogecoin fell 20.8% [DOGE] fell by 24.2%, and Solana [SOL] fell by 16.1%.
Layer-1 networks, such as Avalanche [AVAX] and Sui [SUI]also saw steep corrections of 26.1% and 25.8% respectively – underscoring the severity of the sell-off.
The Altcoin Season Index currently stands at 28, indicating that the market has decisively returned to Bitcoin dominance.
Source: CoinMarketCap
The total altcoin market cap is almost $1.46 trillion, up from about $1.7 trillion earlier this week, reflecting investor caution.
Extreme anxiety increases
The Crypto Fear & Greed Index has fallen to 28, the lowest level in more than a month, indicating that investor sentiment has turned from optimism to caution.
Historically, such readings coincide with periods of market capitulation – or indicate potential reversal zones where selling pressure becomes overextended.
Source: CoinMarketCap
Volatility may persist in the near term as traders weigh macroeconomic uncertainties and liquidation risks following last week’s sharp downturn.
Eyes on $100,000 support
With both BTC and ETH pulling back, the key levels to watch are $100,000 for Bitcoin and $3,500 for Ethereum.
A decisive break below these thresholds could trigger further liquidations and push the total cryptocurrency market cap below the $4 trillion mark.
Conversely, if buyers defend this support and the Fear & Greed Index begins to recover, the correction could give way to consolidation before a potential recovery emerges in late October.