If you buy the same stock three times at different prices, your account holds three lots. When you sell, the cost basis depends on which lots the sale draws from — FIFO (first-in, first-out), or a specific-lot selection. Average-cost methods blur this; lot tracking preserves it, which matters for tax reporting and for understanding true performance.
How Finlynq tracks lots
Finlynq records per-purchase lots and computes realized gains by closing specific lots on a sale. It is multi-currency aware — realized gains can be expressed in your base currency using historical exchange rates at the open and close of each lot — and it supports short positions and dividend reinvestment. Cash sleeves are tracked as explicit holdings so currency-on-currency FX gains surface correctly.
The result is a portfolio view built for people who actually reconcile their investments, not just glance at a balance.