Crypto News: 1st Week of October 2026 — BTC at $70K, Record Fund Inflows & Q3 Review
October opened with one of the strongest weeks in crypto markets this year. Bitcoin touched the psychologically significant $70,000 level for the first time since May, institutional fund inflows broke records, and the Q3 2026 performance numbers confirmed that crypto was once again the top-performing asset class of the year.
Bitcoin Touches $70,000
On October 6th, Bitcoin reached an intraday high of $70,250 — its first time above $70,000 since the brief spike in May 2026. The move was accompanied by the largest single-day spot ETF inflow since launch: $640 million entered US-listed Bitcoin ETF products in a single session, led by BlackRock's IBIT ($310M), Fidelity's FBTC ($180M), and ARK's ARKB ($95M).
On-chain metrics reinforced the significance of the move:
- Bitcoin held on exchanges fell to 2.1 million BTC — a multi-year low, indicating reduced selling pressure
- The number of wallets holding more than 1 BTC reached an all-time high of 1.07 million
- Long-term holder (LTH) supply — coins unmoved for 155+ days — increased for the fifth consecutive month
BTC closed the week at $69,800, just below the $70K level, maintaining a strong weekly candle with minimal wick on the downside.
Crypto Funds Record $1.2B Single-Week Inflows
CoinShares' weekly digital asset fund flow report showed $1.2 billion in net inflowsfor the week — the highest weekly figure since January 2026 and the third-highest on record. Bitcoin accounted for $980M of the total, while Ethereum funds drew $140M. Smaller allocations went to Solana ($45M) and multi-asset products ($35M).
Geographically, US-based products dominated at $890M, followed by European products at $210M and Canadian ETFs at $100M. The surge was attributed to end-of-quarter portfolio rebalancing by institutional investors who had been underweight crypto after the summer consolidation period.
Q3 2026 Performance Review: BTC +28%, ETH +15%
The third quarter of 2026 (July–September) produced strong returns across the board:
- BTC: +28%, rising from $54,500 to $69,600
- ETH: +15%, from $2,890 to $3,320
- Total crypto market cap: grew from $1.8T to $2.4T (+33%)
- S&P 500: +6.2% over the same period (crypto outperformed by 4–5x)
- Gold: +5.8%
Notably, September — historically crypto's weakest month of the year — delivered a positive return for the first time since 2023, with BTC gaining 4.1% in the final month of Q3.
September Hacks: $340M in Protocol Losses
The optimism of Q3 was tempered by a difficult September on the security front. Protocol hacks and exploits resulted in $340M in total losses across the month, with two major incidents:
- Radiant Capital (second exploit): $190M lost in a cross-chain bridge attack affecting its BNB Chain and Arbitrum deployments. The attack vector exploited a re-entrancy vulnerability in the upgraded bridge contract.
- Two smaller DeFi protocols: Combined losses of $150M from oracle manipulation attacks, targeting protocols with insufficient TWAP (time-weighted average price) observation windows.
Despite the losses, on-chain security firm Immunefi noted that total Q3 2026 hack losses of $680M were 22% lower than Q3 2025, suggesting gradual improvement in protocol security standards.
Altcoin Season Signals Emerging
The ETH/BTC ratio closed Q3 at 0.0479, up from 0.0453 at the end of Q2 — a 5.7% increase. While still far from altcoin season territory (typically marked by ETH/BTC above 0.07), the direction of movement and improving altcoin breadth led several analysts to flag early signals of a potential rotation into alternative assets.
Historically, altcoin seasons follow Bitcoin dominance peaks by 4–8 weeks. With BTC dominance at 54% and showing early signs of plateauing, Q4 2026 may see increasing altcoin outperformance — though this remains a macro-level observation rather than a trading signal.
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