恐慌指数创近一周新低，ETF买盘又断了，市场缺新的支撑理由Fear deepens to a weekly low and ETF buying just broke — the market has no fresh support to lean on

The bottom line: sentiment just hit its most fearful point of the past week, and the ETF buying that had been propping things up yesterday just broke down too — two supports loosening on the same day is reason enough for caution.

Key evidence: the Fear & Greed index dropped to 27, the lowest reading in its own 7-day range (25-30), meaning fear has been building over the past week rather than easing. Bitcoin spot ETFs flipped to a $265M net outflow on July 31, with BlackRock's IBIT alone responsible for $123M of it — the prior two-day inflow streak failed to become a real trend and this reads as just one outflow day after another, not sustained institutional buying. Total market cap sits at $2.25T, near the bottom of its own 7-day range, below the recent normal level. Meanwhile ETH perpetual funding flipped from negative back to positive within 24 hours (a sign capital is repositioning quickly), and stablecoin supply contracted for a second straight day (-0.64% over 7 days) — the sidelined cash that could buy the dip isn't growing, it's shrinking. Together these details point to defensive repositioning inside crypto, not just routine price noise.

What argues against the gloomy read: ETH ETFs are still on a two-day inflow streak, small in size but consistent in direction. On-chain data shows both BTC and ETH still saw net outflows from exchanges over the past week (coins moving to cold storage, a backdrop consistent with accumulation), so the supply side hasn't deteriorated. VIX sits at just 16, a calm/normal reading, and both the Nasdaq and S&P 500 are up over 7 days — equities are not falling in tandem with crypto, which suggests this is crypto repositioning internally rather than being dragged down by stocks.

What to watch next: whether BTC ETF outflows extend into Monday (the next trading day) — if they do, it confirms institutional buying is genuinely retreating. Watch whether ETH's open interest (the total value of outstanding contracts, showing how much leverage is still in the market) rises alongside the funding flip — if new money is piling in on either side, volatility could pick up. Also watch how the fallout from the Coldcard hardware wallet's reported $70M loss develops; even though the devices themselves weren't breached, a lingering self-custody trust scare could push more capital toward custodial products like ETFs.

• The Fear & Greed index fell to 27, the most fearful reading in its own past-week range, showing fear is still deepening
• Bitcoin ETFs flipped from two days of inflows to a $265M net outflow, breaking the recent streak of institutional buying
• ETH funding flipped from negative back to positive within 24 hours, and stablecoin supply kept contracting, suggesting capital inside crypto is repositioning fast while sidelined cash isn't growing
• The Coldcard hardware wallet reported a $70M loss — the devices weren't directly breached, but the incident is deepening concerns about self-custody security

• {'url': 'https://www.coindesk.com/markets/2026/08/01/binance-founder-cz-says-diversify-your-wallets-following-usd70-million-coldcard-exploit', 'text': 'The Coldcard hardware wallet reported a $70M loss from an attack that never actually breached the devices themselves; Binance founder CZ is urging users to diversify across multiple wallets, and incidents like this could push more investors toward exchange custody or ETFs instead of self-custody'}
• {'url': 'https://www.coindesk.com/markets/2026/07/31/bitcoin-holds-onto-july-gain-as-forced-selling-fuel-was-already-spent-analysts-say', 'text': "Analysts say bitcoin held onto its July gain because the forced-selling pressure from earlier liquidations has already been exhausted, but they warn August could turn choppy — don't expect a trending rally to resume right away"}
• {'url': 'https://www.coindesk.com/business/2026/07/31/tether-posts-usd1-5-billion-operating-profit-in-q2-as-reserve-buffer-falls-by-half', 'text': 'Stablecoin giant Tether posted a $1.5 billion operating profit in Q2, but its reserve buffer shrank by half — a sign that even as the issuer profits, its safety margin is getting thinner, worth watching for stablecoin system stability'}

The key thing to watch over the next 24 hours is whether BTC ETF outflows continue into the next trading day (Monday). If outflows persist, it confirms institutional buying is genuinely retreating and prices could face further pressure; if flows flip back to inflow, today's outflow was likely just single-day noise. Also watch whether ETH's open interest (the total value of outstanding leveraged positions) rises alongside its funding flip back to positive — a rise would signal fresh capital is fighting over direction, which could amplify volatility. Separately, if the fallout from the Coldcard wallet breach keeps spreading, it could further shake confidence in self-custody and push more capital toward custodial channels like ETFs — a potential silver lining for ETF flows even amid today's caution.