Optimizer skips vaults whose results are one lucky trade

Vaults where a single day produces nearly all lifetime gains no longer qualify as diversification candidates.

• New concentration check: a vault is skipped when one day delivers most of its total growth while providing a small share of its positive days.
• The reason is shown in the list of excluded vaults — for example, “results are effectively one trade”.
• Of the 74 vaults with an HV Score of 60 or higher, 16 now fail this check.
• Vaults you already hold are still kept when you choose to keep existing positions.