We have been getting some questions from LPs why we carry the otc amounts at a discount to current spot. We only do trades on highly liquid spot/perp with multiple tier 1 venues and enough history.
The discount collateral formula:
For a deal with n vesting tranches:
Total Value = Σ vᵢ × spot price × min((1 − discount)^(days to vestᵢ ÷ 365), cap)
Each tranche is valued independently, then summed. For every tranche we take the lesser of the time discounted value or the cap, whichever is more conservative.
Worked theoretical example using OTC 9 from the dashboard
OTC 9 is active, 61% vested, 294 day duration, Linear Cliff vesting. Let's assume it has just 2 remaining tranches:
Tranche A
Tokens (vᵢ) - 5000
Days to vest - 90
Spot Price - $1
Tranche B
Tokens (vᵢ) - 5,000
Days to vest - 294 days
Spot Price - $1
Using a 35% discount and cap = 0.75:
Tranche A: 5,000 × $1.00 × min((0.65)^(90/365), 0.75) ->(0.65)^0.247 = 0.888
We us min(0.888, 0.75) = 0.75 cap kicks in so value carried at in reserves = $3,750
Tranche B: 5,000 × $1.00 × min((0.65)^(294/365), 0.75) (0.65)^0.805 = 0.693
Min(0.693, 0.75) = 0.69 Time weighted discount used so value in reserves = $3,465
Total booked value = $7,215 vs $10,000 market price ~28% markdown.
The dashboard shows this in action at scale:
$14.90M deployed (notional for current live deals) ~ 9.5%
$8.09M liquidation value (what it's booked at after discounts to be conservative) - 5.4% shown in reserves
The further out the vest, the harsher the haircut. Even near vesting tranches get capped below spot.
This is intentional conservatism, it means NUSD's collateral is never overstated even at the current 103% .