!!! info "[ApiVaultInvestorHistory](/../../schemas/api_vault_investor_history)"
    The vault investor history returned by the service to client<br>

    |Name<br>`Lite`|Type|Required<br>`Default`| Description |
    |-|-|-|-|
    |event_time<br>`et` |string|True|Time at which the event was emitted in unix nanoseconds|
    |off_chain_account_id<br>`oc` |string|True|The off chain account id of the investor, only visible to the manager|
    |vault_id<br>`vi` |string|True|The unique identifier of the vault.|
    |type<br>`t` |VaultInvestorAction|True|The type of transaction that occurred. List of types: vaultInvest, vaultBurnLpToken, vaultRedeem|
    |price<br>`p` |string|True|The price of the vault LP tokens at the time of the event.|
    |size<br>`s` |string|True|The amount of Vault LP tokens invested or redeemed.|
    |realized_pnl<br>`rp` |string|True|The realized PnL of the vault.|
    |performance_fee<br>`pf` |string|True|The performance fee of the vault.|
    ??? info "[VaultInvestorAction](/../../schemas/vault_investor_action)"
        |Value| Description |
        |-|-|
        |`UNSPECIFIED` = 0||
        |`VAULT_INVEST` = 1||
        |`VAULT_BURN_LP_TOKEN` = 2||
        |`VAULT_REDEEM` = 3||