Use Transaction History, not Activity
In Tastytrade: History → Transactions → Export → Download CSV
Transaction History has exact dates, expiry, and strike — so dates and cost basis stay correct. Activity CSV is supported but less accurate.
Why Transaction History?
Correct "Date Opened" and expiry dates
Accurate cost basis (stock purchases + option details)
Handles rolls and complex trades
Includes commissions and fees
Supported formats
Tastytrade Transaction History — use when you can
History → Transactions → Export CSV
Tastytrade Activity CSV — works but less accurate
Dates and details are inferred; use Transaction History for best results.
Generic CSV — manual entry or other brokers
PLT % (left on the table)
PLT % = Debit to close ÷ Credit received. Of the premium you received when you opened trades that you later bought back, what percent did you give back by buying to close? For Closed trades it shows that percentage. Higher % = more premium given back. For Expired trades, PLT is 0% — you kept everything (debit-to-close is treated as $0 when the option expires worthless). PLT % and Cost basis are shown on the Portfolio Analytics page.
Cost basis (why it might show "—")
Include stock purchases in your export. Cost basis is calculated from your share positions. If you bought shares outright and then sold covered calls (CCs) on them, your Transaction History export must include the Equity buy rows (e.g. "Bought 100 APLD @ 37.15"). Same if you received shares from an assigned put — include any Equity rows. Re-import a CSV that contains those stock buys so the app can show cost basis after your CCs close or expire. View PLT % and Cost basis per ticker on Portfolio Analytics.
Mark assigned CSPs only when applicable. If a cash-secured put was assigned (you received shares at the strike), edit that option and check "CSP was assigned (shares acquired at strike − premium)". If you bought stock outright and only sold CCs, you don’t need to mark anything — just make sure the stock purchase is in the CSV.
Tips
Always use Transaction History when available
Stock purchases must be in the CSV for cost basis tracking
Export all trades (not just a date range)
Coming soon: Robinhood, TD Ameritrade, and other brokers