[NIP-84] Increase Aura: USDC/GHO/USDT (Mainnet) max borrow capacity to 4M USDC

Summary

Due to high demand for the USDC/GHO/USDT leveraged vault, we propose increasing the vault’s max borrow capacity from 2M USDC to 4M USDC.

Risks

We believe that increasing the exposure to GHO is acceptable at this time given the strong growth of on-chain GHO liquidity. If all of this capacity were to be taken up instantly, Notional would hold less than 35% of the Balancer pool and less than ~17% of total GHO liquidity on Mainnet. We believe that these are acceptable exposure levels.

Note that high-quality Stablecoin liquidity paired with GHO on Ethereum has grown by ~2.7x since the last proposal to increase capacity for this vault was submitted to the forum on April 5th.

Here was the primary GHO liquidity at that time:

Protocol Pools Address GHO Liquidity Non GHO liquidity % of non GHO liquidity
Maverick USDC/GHO 0x0d67b27c340887da87344c344c20ce60a8eb84c5 $1,604,813 $461,516 22.34%
Curve USDe/GHO 0x670a72e6d22b0956c0d2573288f82dcc5d6e3a61 $7,924,136 $4,155,633 34.40%
Curve crvUSD/GHO 0x635ef0056a597d13863b73825cca297236578595 $246,496 $146,977 37.35%
Balancer USDC/GHO/USDT 0x8353157092ed8be69a9df8f95af097bbf33cb2af $1,442,948 $1,106,330 43.40%
Total $11,218,393 $5,870,456 34.35%

Today, GHO liquidity on Mainnet paired against high quality stables is much deeper:

Protocol Pools Address GHO Liquidity Non GHO liquidity % of non GHO liquidity
Maverick USDC/GHO 0x14Cf6D2Fe3E1B326114b07d22A6F6bb59e346c67 $1,400,000 $4,200,000 75%
Curve USDe/GHO 0x670a72e6d22b0956c0d2573288f82dcc5d6e3a61 $3,900,000 $3,500,000 47.29%
Curve crvUSD/GHO 0x635ef0056a597d13863b73825cca297236578595 $1,400,000 $1,300,000 48.14%
Balancer USDC/GHO/USDT 0x8353157092ed8be69a9df8f95af097bbf33cb2af $5,200,000 $7,000,000 57.37%
Total $11,900,000 $16,000,000 57.34%

Aave is deeply committed to the growth of GHO as evidenced by their recent push to expand on Arbitrum. We believe this substantial increase for GHO liquidity on Ethereum makes the increase in Notional’s total GHO exposure acceptable and we are confident that GHO liquidity will continue to increase from here given Aave’s ongoing incentivization efforts.

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