# Flash Pool (Ontology EVM)

<table><thead><tr><th width="176">Date</th><th width="131">Updates</th><th width="154">Before</th><th width="232">After</th><th width="190">Description</th></tr></thead><tbody><tr><td>March 23, 2022</td><td>Launch Wing Flash Pool (Ontology EVM), Support WING, WONT, ONG, ETH, WBTC, USDT, USDC</td><td>/</td><td><p>Distribute WING incentives based on the 90th percentile of borrow amount from the previous day among pools</p><p>Collateral factor: <strong>WING 40%, WONT 60%, ONG 50%, ETH 85%, WBTC 75%, USDT 80%, USDC 80%</strong></p><p>Liquidation Bonus：<strong>WING 10%, WONT 8%, ONG 8%, ETH 5%, WBTC 8%, USDT 5%, USDC 5%</strong>          </p><p>Reserve Factor: </p><p><strong>WING 30%, WONT 20%, ONG 25%, ETH 15%, WBTC 15%, USDT 10%, USDC 10%</strong>                       </p></td><td>WIP-54</td></tr><tr><td>August 1, 2022</td><td>Optimize the Competitive Distribution Model</td><td>Adjustment Cycle: Real-time</td><td><p>Adjustment Cycle:</p><p><strong>7 days</strong></p></td><td>WIP-58</td></tr></tbody></table>