今天该怎么看：市场情绪比昨天好一些，比特币现货ETF结束了此前的流出、8月3日转为净流入1.7亿美元（IBIT一家贡献1.11亿），加上伊朗霍尔木兹海峡协议传出'最后关头'的乐观消息，带动比特币冲向6.4万美元，加密总市值涨到2.27万亿美元（回到过去7天区间中段）。
支撑这个判断的关键证据：第一，ETF流出的势头被打断，虽然只是流出后的第一个净流入日、还谈不上连续趋势，但方向是积极的；第二，纳斯达克、标普今天同步上涨（分别+1.06%、+0.31%），说明这次风险偏好回升是宏观和加密同步的，不是币圈单独在自嗨；第三，板块轮动上看，资金明显在往具体叙事里钻（如稳定币相关代币暴涨），而不是普遍抛售；第四，交易所资金流上出现分化——比特币过去一周有净流入交易所的迹象（潜在抛压的背景信号），以太坊则是净流出、往冷钱包转移（囤币迹象），这是本周的结构性背景，不是今天上涨的原因。
需要留意的反面信号：恐慌与贪婪指数只有25分，还在过去7天的最低位，说明尽管价格在涨，散户情绪并没有真正回暖，这是今天最大的矛盾点；另外稳定币总市值过去7天还在小幅收缩（-0.52%），说明场外新增资金还不算多，这波反弹更多是存量资金和情绪修复在推动；Coldcard硬件钱包被盗事件仍在持续，是自托管信心的一个潜在风险点，不过市场目前反应平淡。
接下来最该盯的：一是ETF净流入能不能连续两天以上，如果能就说明机构买盘真的回来了；二是恐慌指数会不会跟着价格回升，如果继续维持在25附近甚至走低，说明这波涨势的散户参与度不够、比较容易反复；三是伊朗协议是否真正落地，如果霍尔木兹海峡局势实质缓和，油价和债券收益率的下行会持续支撑风险资产。
Bottom line: sentiment is a bit better than yesterday. The U.S. spot bitcoin ETF complex broke its outflow streak, posting a $170M net inflow on Aug 3 (IBIT alone took in $111M), and hopeful headlines about a "last chance" deal to reopen the Strait of Hormuz helped push bitcoin toward $64,000. Total crypto market cap climbed back to $2.27T, landing in the middle of its 7-day range.
What's backing this call: first, the ETF outflow trend was broken — it's only the first inflow day after a run of outflows, not yet a confirmed streak, but the direction is constructive. Second, the Nasdaq (+1.06%) and S&P 500 (+0.31%) rose in tandem with crypto today, meaning this risk-on move is confirmed across both equities and crypto, not just a crypto-only bounce. Third, sector rotation shows capital chasing specific narratives (stablecoin-linked tokens spiked sharply) rather than broad-based buying. Fourth, exchange flows are diverging — bitcoin has seen net inflows to exchanges over the past week (a potential selling-pressure backdrop), while ether has seen net outflows into cold storage (an accumulation signal) — this is a structural weekly backdrop, not today's driver.
What could break this: the Fear & Greed index sits at just 25, still at its 7-day low, meaning retail sentiment hasn't actually caught up with the price move — that's today's biggest tension. Stablecoin supply also contracted slightly over the past week (-0.52%), suggesting fresh capital entering crypto is still limited; this bounce looks more like existing capital repositioning than new money coming in. The Coldcard hardware wallet exploit is also still unfolding, a lingering risk to self-custody confidence, though the market has largely shrugged it off so far.
What to watch next 24h: whether ETF inflows extend to a second consecutive day, which would confirm real institutional demand returning; whether the Fear & Greed index recovers alongside price — if it stays pinned near 25 or falls further, it signals weak retail participation and a fragile rally; and whether the Iran deal actually materializes, since continued de-escalation around the Strait of Hormuz would keep supporting lower oil prices and bond yields, both tailwinds for risk assets.
未来24小时最该盯的是比特币ETF净流入能不能连续两天以上——如果能，说明机构买盘真的回来了，价格有望继续冲高；如果明天又转回流出，说明今天只是单日反弹。同时要留意恐慌与贪婪指数会不会跟着价格回暖，目前它还卡在25分的7天低位，如果价格涨但情绪指数继续不动甚至下跌，说明这波涨势散户参与度不够，容易一有风吹草动就回落。另外伊朗霍尔木兹海峡协议如果在近两天真正签署落地，会是对风险资产更实质的支撑；但目前贝森特的表态还只是口头乐观，一旦谈判出现反复，今天的涨势可能很快被打回原形。
The most important thing to watch over the next 24 hours is whether the bitcoin ETF net inflow extends to a second consecutive day — if it does, that's real confirmation institutional buying is coming back and price could push higher; if it flips back to outflow tomorrow, today was just a one-day bounce. Also watch the Fear & Greed index, still stuck at its 7-day low of 25 — if price keeps rising while sentiment stays flat or falls further, it signals weak retail participation and a rally vulnerable to reversal on any bad news. Finally, if the reported Strait of Hormuz deal actually gets signed in the next day or two, that would be a more substantial tailwind for risk assets; but for now Bessent's comments are only verbal optimism, and any setback in the talks could quickly unwind today's gains.