A 15.40% gain invites loosening a trigger that a -4.06% hour can still gap through
Should the lender lower its BTC collateral requirement now that borrowers' coverage has grown with a 15.40% weekly gain, or keep the trigger and margin sized to Wednesday's -4.06% hour?
The market facts are real; the decision maker is illustrative.
The week and the position
In the week of 16 November 2020, BTC rose 15.40% to close at 18,414.43, 2.37% below its 52-week high, after four consecutive up weeks; its return sat in the 92nd percentile of 144 weeks of history. The week's range was 19.55%, with the high at 18,965.90 on Saturday and the largest one-hour move -4.06% on Wednesday at 05:00 UTC. Perpetual funding averaged 0.0322% per eight hours, peaking at 0.087%. An illustrative lender holds BTC-backed loans and sells collateral below a fixed trigger, and is considering looser terms as coverage improves.
Judgment
Appreciating collateral widens every borrower's cushion, but it does not tell the lender how fast that cushion can close. A -4.06% hour, 68.9% annualised realised volatility, and volume 2.4 times the prior 12-week average, with 8-hour funding averaging 0.0322% and peaking at 0.087%, describe a fast market closing 2.37% below its 52-week high; a squeeze can carry collateral through the trigger in a single hour. Keep the margin and trigger unchanged and hold liquidation inventory capacity for one week like this one. Use the improved coverage to reduce defaults, not to reprice new loans.
What would change it
If BTC's largest hourly moves stay well below -4.06% for several consecutive weeks while realised volatility falls materially, the margin can be relaxed. If funding turns negative and price closes below the week's open of 15,957.00, tighten it instead.
What sets this case apart
This is a loosening temptation created by a winning week, not a loss-limit problem; the risk is the gap between a rising cushion and one bad hour.