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Base Asset and Quoted Asset
Summary: Keep track of accounts denominated in the base asset and the quoted asset, in multiple contexts. On this page: Episode Base Asset, Episode Quoted Asset, Position Base Asset, Position Quoted Asset, Stage Base Asset, Stage Quoted Asset, Order Base Asset, Order Quoted Asset.
Because the system aims to be as flexible as possible, the trading engine keeps the accounts relative to both the base asset and the quoted asset. This allows the user to set up the trading system with whatever logic is required and decide which set of accounts suits the intent—the goal—of the trading strategy.
Notice that—usually—the accounts denominated in one asset will be valid, while the accounts denominated in the other asset will likely make no sense.
Which set of accounts you will monitor to track the performance of the episode depends on how you define your trading system.
For example, If you are trading the BTC/USDT market and developed a trading system to accumulate USDT, then the set of accounts that will make sense for you is the one denominated in the quoted asset, that is, in USDT. This is why:
Your strategy will likely buy BTC (the base asset) expecting the price to go up while the position is open, in order to sell BTC at a higher rate and end up with more USDT (the quoted asset) than you started with.
Example
Let’s say you buy 10,000 USDT worth of BTC. BTC price increases by 10%, so you sell the whole amount of BTC to close the position and end up with 10,900 USDT (exchange fees are deducted from the balance).
In terms of the base asset, your begin balance is 0 BTC and your end balance is 0.00000012 BTC, as the exchange left some BTC dust in the account due to rate conversion limitations. Also in terms of the base asset, your profit loss for the position is...
0.00000012 BTC - 0 BTC = 0.00000012 BTC ROI and other metrics may be derived from these initial observations as well. Needless to say, such metrics are irrelevant to the intent of the strategy, which is to accumulate USDT.
Now, in terms of the quoted asset, your begin balance is 10,000 USDT and your end balance is 10,900 USDT (exchange fees are deducted from the balance). Also in terms of the quoted asset, your profit loss for the position is...
10,900 USDT - 10,000 USDT = 900 USDT It should be clear by now that these are the metrics relevant to the intent of the strategy.
Note: With other types of strategies, for example, those in which the intent is to accumulate both assets, both sets of metrics may be relevant. Also, the consolidated metrics provided in the context of statistics may be relevant too.
The concepts relative to base and quoted asset, such as the balance of each asset and the performance metrics computed from the perspective of each asset, are tracked in multiple contexts simultaneously.
What follows are the definitions of the base and quoted asset in each of the contexts that the concepts are tracked.
Episode Base Asset
Foundations->Node->Episode Base Asset->Definition
The episode base asset node keeps track of the evolution of variables and metrics denominated in the base asset, throughout the episode.
Episode Quoted Asset
Foundations->Node->Episode Quoted Asset->Definition
The episode quoted asset node keeps track of the evolution of variables and metrics denominated in the quoted asset, throughout the episode.
Position Base Asset
Foundations->Node->Position Base Asset->Definition
The position base asset node keeps track of the evolution of variables related to the base asset throughout the position.
Position Quoted Asset
Foundations->Node->Position Quoted Asset->Definition
The position quoted asset node keeps track of the evolution of variables related to the quoted asset throughout the position.
Stage Base Asset
Foundations->Node->Stage Base Asset->Definition
The stage base asset node keeps track of the evolution of variables related to the base asset throughout the stage.
Stage Quoted Asset
Foundations->Node->Stage Quoted Asset->Definition
The stage quoted asset node keeps track of the evolution of variables related to the quoted asset throughout the stage.
Order Base Asset
Foundations->Node->Order Base Asset->Definition
The order base asset node keeps track of the evolution of certain properties of orders, denominated in the base asset.
Order Quoted Asset
Foundations->Node->Order Quoted Asset->Definition
The order quoted asset node keeps track of the evolution of certain properties of orders, denominated in the quoted asset.
Trading Engine — TOC
You just read page 6 in the topic.
4. Temporal Context - Current and Last
5. Conceptual Context - Episode, Strategy, Position, Strategy Stages
6. Base Asset and Quoted Asset
7. Counters
8. Statistics
10. Balances
11. Common Metrics - Hits, Fails, Hit Ratio, Profit Loss, ROI, Annualized Rate of Return
12. Accounts Specific to the Open and Close Stages
13. Accounts Specific to Orders
14. Market Data