web3 : VanEck : Bitcoin shows 8 bottom signals; a rebound may still take several months
Cryptonews
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VanEck indicates that Bitcoin has shown 8 bearish signals, but historical data suggests that returns may not be favorable in the next three to six months; the potential accumulation period could be between September and November.
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VanEck最新发布的比特币月中观察显示,市场已进入明显承压阶段,但这并不意味着价格已经确认见底。该机构跟踪的 12 项“投降”指标中,目前仍有 8 项处于触发状态,过去三个月内则曾全部进入极端区间。

历史回测不支持快反弹

VanEck称,当 8 至 12 项指标同时触发时,比特币后续 90 天平均回报约为 12.8%,低于其历史可比阶段 15.2% 的平均水平。把持有期拉长到 180 天后,平均涨幅为 32%,同样低于全样本 36.3% 的均值。

这意味着,这组信号更适合用来判断比特币所处周期位置,而不是直接用来寻找精确底部。VanEck还提到,只有拉长到一年维度后,回报才高于历史基线,但相关样本重叠较多,独立事件数量有限。

本轮跌幅较浅

按 VanEck口径,比特币自 2025 年 10 月高点回落约 49%,已满足其单独设定的跌幅阈值,因此被计入一项触发信号。不过,如果完全按其他指标统一的历史分位法计算,当前应是 7 项而非 8 项。

VanEck认为,本轮下跌幅度可能低于以往几轮熊市。此前几次主要下跌周期,峰值到谷值跌幅分别达到 94%、85%、84% 和 78%。该机构判断,如今美国现货比特币 ETF 已形成受监管的需求来源,机构持有者更多,类似 2022 年 Celsius 和 FTX 那样引发连锁抛售的大型无监管机构也更少。

不过,从时间看,本轮调整与历史更接近。VanEck统计 2011 年以来四轮完整熊市后发现,从高点到低点平均持续约 11 个月;若剔除 2011 年较小周期,平均时长约为 12.7 个月。按这一节奏,比特币在今年 8 月已进入自 2025 年 10 月高点回落后的第 10 个月,因此该机构把下一阶段可能的积累窗口放在 9 月至 11 月。

ETF回流与矿工承压

报告期内,美国现货比特币产品净流入约 6.63 亿美元,折合约 1.04 万枚 BTC,部分扭转此前一个月约 24 亿美元的流出。VanEck认为,这说明受监管产品渠道仍在提供需求,但场外与二级市场买盘并不稳定。

同期,比特币 30 日已实现波动率降至年化 27.2%,明显低于长期约 80% 的均值,现货成交量也在 30 天内下降 27%,落入历史第 10 分位附近。价格方面,8 月 19 日亚洲时段,比特币在 6.43 万美元附近交易,近期大致运行于 6.23 万至 6.65 万美元区间。

矿工端的压力则更为明显。VanEck称,全网日收入同比下降 46%,挖矿难度较 2025 年 11 月高点回落 18.3%,为 2021 年中国叫停境内比特币挖矿以来最大降幅之一。这意味着部分矿机关机,行业正在被动收缩产能。

长期持有者的仓位也在下降。过去 30 天里,持有超过一年的比特币减少 356,534 枚,降至 1184 万枚,占流通供应的 59.1%。VanEck指出,这些变动未必都代表卖出,其中一部分也可能只是出于安全原因在私人钱包之间转移,但若要确认是否流向交易所,仍需结合按币龄划分的交易所流入数据观察。

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