Portfolio Dashboard

📊 Data Structures in Action

MAP

Portfolio Holdings: O(1) access to stock data by symbol

ARRAY

Transaction History: Sequential storage with efficient sorting

CIRCULAR BUFFER

Balance History: Fixed-size storage for performance

Portfolio Summary MAP + ARRAY

Cash Balance

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Stock Value

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Total Value

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Current Holdings MAP

Symbol Quantity Avg Price Current Price Market Value P/L

Recent Transactions ARRAY

Type Symbol Qty Price Time