Crypto Market Crash in September: 5 Key Reasons Explained

Yeliz Akmaca — Fri, 26 Sep 2025 10:00:14 +0000

The crypto market experienced a major crash in the last 24 hours, losing approximately $162 billion in total value. Bitcoin fell below $110,000, while altcoins such as Ethereum, Solana, XRP, and Dogecoin dropped by nearly 5%. According to CoinGecko, the total market capitalization declined from $3.85 trillion to $3.69 trillion. Here are the five main factors behind this sudden drop.

$1.27 Billion Outflow from Bitcoin and Ethereum ETFs

After weeks of positive inflows, Bitcoin and Ethereum ETFs saw a combined outflow of $1.27 billion. Analysts say this sudden reversal, driven by institutional portfolio rebalancing and macroeconomic uncertainties, triggered broader selling in spot and derivatives markets. This increased selling pressure caused prices to fall rapidly.

$23 Billion Options Expiry and Rising Volatility

On September 26, approximately $22.3 billion worth of Bitcoin and Ethereum options contracts expired. Investors closed positions en masse, increasing market volatility. Analysts note that large traders often pushed prices toward “maximum pain” levels — $110,000 for Bitcoin and $3,800 for Ethereum — a strategy that can trigger panic among smaller investors.

Strong Economic Data and Investor Concerns

U.S. Q2 GDP came in at 3.8%, above expectations of 3.3%. While strong economic data is positive in the long term, it negatively impacted crypto investors in the short term. The likelihood of an interest rate cut decreased, prompting investors to exit risk assets and intensifying market pressure.

High Liquidations in Ethereum and Bitcoin

The market drop, combined with leveraged trades and profit-taking, led to over $1 billion in liquidations. In the past 24 hours, 402,000 investors were liquidated — the largest loss since March. Ethereum led the decline, with over $600 million in liquidations.

U.S. Government Shutdown Fears

If Congress fails to pass the budget, the U.S. government could shut down on October 1. With a 67% likelihood of closure, investors have become more cautious. Historically, shutdowns have prompted sales in risky assets, leading to sharp declines in both crypto and stock markets.

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