A weekly trend rebalance meets a Friday low and a 13.56% Sunday rebound
Should the fund cut its ETH trend allocation at the scheduled weekly rebalance, or delay the reduction to avoid selling after a 13.56% rebound day?
The market facts are real; the decision maker is illustrative.
The week and the position
In the week of 24 February 2025, ETH fell 10.7% to 2,518.11, with a low of 2,076.26 on Friday at 06:00 UTC and a best day of +13.56% on Sunday that included a 9.56% hour late in the UTC day. Volume was 1.28 times the prior 12-week average, the market sat 38.38% below its 52-week high, and the week's return ranked in the 11th percentile of 367 weeks of history. ETH also underperformed BTC by 8.63 percentage points, with correlation close at 0.83. An illustrative fund rebalances once a week on a fixed day.
Judgment
The trend evidence is negative, and the 10.7% outright fall exceeds the 8.63 percentage point shortfall versus BTC, so reduce the ETH allocation at the scheduled rebalance rather than postponing it. Size the reduction from the weekly signal and the relative shortfall versus BTC, not from the 9.56% hour or the Sunday bounce, which reverse too fast to trade on a weekly cadence. Accept that the reduction may be executed well above Friday's low; that cost is the price of a rule that can be run every week.
What would change it
If ETH closes a subsequent week above this week's open of 2,819.70 while holding its gain against BTC, restore the allocation at the next scheduled rebalance. If the weekly close lands in the lower third of the range on heavy volume, reduce further.
What sets this case apart
The conflict is between a weekly rule and intraday extremes, not between bull and bear: Friday's low and the 9.56% Sunday hour both fell outside any single rebalance.