A 12.23% week and five straight gains test a quarterly reserve's rebalancing rule
Should the treasury rebalance part of its ETH reserve back to its stated target weight before the quarter closes, or leave the position untouched and absorb whatever the quarter-end mark shows?
The market facts are real; the decision maker is illustrative.
The week and the position
In the week of 27 January 2020, ETH rose 12.23%, from 167.91 to 188.44, with a high of 193.43 on Sunday, a range of 17.07% and annualised realised volatility of 57.6%. It was the fifth consecutive up week after returns of 0.75%, 8.25%, 13.8% and 0.64%, at the 87th percentile of 102 weeks of history. Volume ran 1.37 times the prior 12-week average, the close sat in the upper third of the range, and price remained 47.34% below the 52-week high. An illustrative company treasury holds ETH as a reserve and marks it in quarterly reporting.
Judgment
A reserve held for reporting should not be allowed to drift far from its target on one strong week, and a week at the 87th percentile after four straight gains is where drift concentrates. Rebalance a defined slice of the reserve back to the target weight before the quarter closes, and keep the core holding. The accepted cost is selling near a level 47.34% below the 52-week high and forgoing further gains; the protected item is a quarterly report that reflects a policy weight rather than a five-week run.
What would change it
If the treasury's written policy sets the reserve as an unhedged strategic holding with no target weight, the rebalance has no basis and the position stands. If ETH closes back near the week open of 167.91 before quarter-end, the drift is already partly undone and the slice shrinks proportionally.
What sets this case apart
The tension is policy discipline versus a still-deep drawdown, not a forecast: the reserve is marked quarterly, so a five-week run is a weight problem before it is a price view.