Bitcoin Trend比特币趋势
Trend-follow Bitcoin to keep the upside while cutting the repeated -80% drawdowns.趋势跟随比特币，保留上行同时削减反复出现的 -80% 回撤。
As of截至 Jul 17, 2026 · Bitcoin比特币 · current income当前票息 ~2.49%
⚗ Experimental — display-only (Phase-0)实验性 — 仅展示（Phase-0）
A drawdown / Sharpe engine — not a yield-maximizer回撤 / 夏普引擎 — 并非收益最大化工具
Recommended allocation right now当前建议仓位
Bitcoin比特币33%
T-bills短期国债67%
Bitcoin比特币
T-bills短期国债 (cash carry现金套息)
Last change上次调整: 2026-07-07 — 0% → 33%
Current income blends the risk-asset yield (when invested) with the cash-leg yield (when de-risked).当前票息为风险资产收益（在场时）与现金腿收益（降险时）的加权。
Down-trend / vol下行趋势 / 波动 score评分 (0–100)
74
Stress — de-risk压力 — 降险
Higher = more risk-off. The score sets the risk-asset weight via graded bands (below), with a 5-day debounce to cut whipsaw.分数越高越偏避险。该分数通过分级区间（见下）设定风险资产权重，并有 5 日缓冲以抑制频繁换仓。
What is driving the score分数由什么驱动
Each leg adds points to the 0–100 score (renormalised weighted mean). The bar is the current score, split by contribution.各分项为 0–100 分数贡献分值（归一化加权平均）。下方进度条为当前分数，按贡献拆分。
Filled width = the score out of 100. Empty = headroom (calm).填充宽度 = 满分100中的得分。空白 = 余量（平静）。
| Signal leg信号分项 | Intensity强度 | Weight权重 | Pub lag发布滞后 | Points贡献分 |
|---|
| Trend (time-series momentum)趋势（时间序列动量） |
100/100 |
1.0 |
0d |
66.7 |
| Realized-volatility risk-off已实现波动率（避险） |
21/100 |
0.5 |
1d |
6.9 |
| Composite score综合分数 | | | | 74 |
The strategy in action · benchmark with the model on top策略实战 · 基准叠加模型
Green = fully invested, amber = trimmed, clear = defensive. ▲/▼ mark every allocation change. The strategy equity (blue) is rescaled onto the benchmark axis so you can read protection vs participation directly.绿色 = 满仓，琥珀 = 减仓，空白 = 防守。▲/▼ 标注每次仓位变动。策略净值（蓝）已缩放至基准轴，可直接对比保护与参与度。
Growth of $1 (log) — vs buy & hold1美元增长（对数）— 对比买入持有
Underwater (drawdown) — vs buy & hold水下回撤 — 对比买入持有
Honest framing: this does NOT reliably beat buy-and-hold on CAGR — sitting in the cash leg through stress gives up some carry. The edge is the higher Sharpe and the much shallower max drawdown: it times the LEFT TAIL that destroys the yield (the recession/credit/rate shock), not the yield itself.诚实说明：本策略在年化收益上并不稳定跑赢买入持有 —— 压力期退守现金腿会让出部分套息。优势在于更高的夏普与明显更浅的最大回撤：它择时的是吞噬收益的左尾（衰退/信用/利率冲击），而非收益本身。
Backtest scorecard · 11.8 years vs buy & hold回测记分卡 · 11.8 年对比买入持有
CAGR
53.21%
buy & hold买入持有 51.74%
Sharpe
0.96
buy & hold买入持有 0.8
Max drawdown最大回撤
-61.9%
buy & hold买入持有 -83.4%
Time invested在场时间
86.2%
4.04x turnover/yr换手/年
Sortino
1.19
buy & hold买入持有 1.06
Income yield now当前票息
2.49%
blended risk-asset + cash风险资产 + 现金加权
Deflated Sharpe贬值夏普
0.9947
multiple-testing haircut多重检验折减 · n=8
The rule-book · risk band → weight规则手册 · 风险区间 → 权重
| Risk band风险区间 | Score分数 | Bitcoin比特币 weight权重 | T-bills短期国债 |
|---|
| Calm — fully invested平静 — 满仓 |
< 25 |
100% |
0% |
| Watch — trim关注 — 减仓 |
25–50 |
66% |
34% |
| Stress — de-risk压力 — 降险 ◀ |
50–75 |
33% |
67% |
| Defensive — all cash防守 — 全现金 |
≥ 75 |
0% |
100% |
A new band must hold 5 trading days before it takes effect (hysteresis kills whipsaw). Bands and leg weights are pre-registered, not tuned per result.新区间须连续保持 5 个交易日才生效（滞后机制抑制频繁换仓）。区间与分项权重为预先登记，非按结果调参。
Independent bear episodes · the true sample size独立熊市事件 · 真实样本量
| Peak峰值 | Trough谷底 | Buy & hold drawdown买入持有回撤 |
|---|
| 2014-09-17 | 2015-01-14 | -61.1% |
| 2015-12-15 | 2016-01-15 | -21.7% |
| 2016-06-16 | 2016-08-02 | -28.6% |
| 2017-01-04 | 2017-01-11 | -32.6% |
| 2017-03-03 | 2017-03-24 | -26.5% |
| 2017-06-11 | 2017-07-16 | -34.8% |
| 2017-09-01 | 2017-09-14 | -35.5% |
| 2017-11-08 | 2017-11-12 | -20.2% |
| 2017-12-16 | 2018-12-15 | -83.4% |
| 2021-01-08 | 2021-01-27 | -25.4% |
| 2021-02-21 | 2021-02-28 | -21.6% |
| 2021-04-13 | 2021-07-20 | -53.1% |
| 2021-11-08 | 2022-11-21 | -76.6% |
| 2024-03-13 | 2024-09-06 | -26.2% |
| 2025-01-21 | 2025-04-08 | -28.1% |
| 2025-10-06 | 2026-06-30 | -53.1% (ongoing进行中) |
A handful of independent ≥20% bears govern a get-out / get-back-in switch — effective-N, not the day count, bounds confidence. Full leave-one-crisis-out validation is a fast-follow.少数几次独立的 ≥20% 熊市决定一次离场/再入场切换 — 决定置信度的是有效样本量，而非天数。完整的留一危机验证为后续跟进。
Bitcoin (BTC-USD) total return = dividend/coupon-adjusted close (2014→). Crypto trades 7d/wk; Sharpe is annualized at 252 (slightly conservative). This is where trend most clearly beats buy-&-hold. Experimental — full Phase-0 (leave-one-crisis-out, deflated-Sharpe) is a fast-follow.比特币 (BTC-USD)总回报 = 经分红/票息调整收盘价（2014→）。加密 7×24 交易；夏普按 252 年化（略保守）。这是趋势最明显跑赢买入持有之处。 实验性 —— 完整 Phase-0（留一危机、贬值夏普）为后续跟进。