# Note 1. Assets. Options Chain.

10. The column of currency is available in the user's assets. This currency is needed as margin collateral for trading options contracts.
11. A column representing the exchanges API Keys to which the assets relate.
12. Total value of all assets in your exchange API key.
13. Column displaying available funds for placing orders or margin collateral (available margin balance).
14. The column that displays Total session Profit and Loss (RSPL+USPL) for the exchange account, including positions across all derivatives (contracts and options). (NOTE! The column displays data only for those exchanges that provide such information.)
15. The column that displays Total session PNL is solely for options positions. The data are calculated based on RSPL and USPL.
16. Options session realized Profit and Loss.
17. Options session unrealized Profit and Loss.
18. Initial Margin. The amount of margin reserved for your open positions and open orders.
19. Maintenance Margin. The margin required to maintain your current position. If your margin balance falls below this, then your account will incrementally liquidate until the Maintenance Margin goes below your margin balance.
20. Delta Total. The sum of Mark Price adjusted delta.
21. Number of max loans of currency. This indicator is used in the exchange's calculations only under certain conditions (for example, for OKX, this indicator applies to the cross of Multi-currency margin and Portfolio margin).