Big Tech 2022–2024
8 tradesAAPL, MSFT, NVDA, TSLA, AMZN, GOOGL — six buys plus two trims of the Tesla and Nvidia positions.
Buy. Hold. Chill.
How did I perform vs. the market?
Upload your brokerage transactions or enter them manually. We replay every buy and sell as if the same dollars had gone into VTI on the same days — then show you the gap.
Add your transactions
Drop a CSV file, or click to browse
Robinhood, Vanguard, Fidelity, Schwab — or any CSV with date, symbol, action, quantity, and price columns. Files are processed in your browser; nothing is uploaded to our servers.
Map your columns
We couldn't auto-detect every field. Pick the matching column for each.
Pick a pre-built portfolio to see how the comparison works.
Diversified Blue-Chips
7 trades · 2016–2023One buy per year across JNJ, KO, DIS, JPM, HD, COST, and CAT — seven sectors, seven entry points.
Meme Stocks
5 trades · 2020–2021PLTR, GME, BB, AMC, HOOD — bought on or near their viral moments. How did diamond hands stack up to VTI?
Your transactions 0
| Date | Action | Symbol | Quantity | Price | Amount |
|---|
Run the comparison
We'll fetch historical prices for each symbol and for VTI, then replay every transaction as if the same dollars had gone into VTI on that day.
Results
Your portfolio value
—
net invested —
If you'd bought VTI
—
same dollars, same days
Alpha vs. VTI
—
total return gap
Portfolio value over time
Mark-to-market value of every share you held, day by day. The dashed line is the same dollars deployed into VTI instead.
Per-symbol breakdown
For each symbol, we compare the realized + unrealized return of your actual trades to a hypothetical VTI portfolio funded by the same buy/sell dollars on the same days.
| Symbol | Net invested | Position value | Your return | VTI return | Alpha |
|---|
How it works
- Parse — your CSV is read in your browser. We auto-detect Robinhood, Vanguard, Fidelity, and Schwab column layouts, and fall back to a manual mapper for anything else.
- Fetch prices — for each unique symbol (and VTI), we pull historical daily closes through a price API. Prices are split-adjusted.
- Replay — for every buy of $X on day D, we credit you with X / VTI_close(D) shares of VTI. Sells release shares proportionally. Your VTI sleeve is then valued at today's close.
- Compare — we compute current portfolio value, what VTI would be worth, and the dollar and percentage alpha.
Notes & caveats
- This tool uses split-adjusted closing prices. Your actual fills may differ by intraday timing.
- Dividends are reflected via adjusted close, so reinvested dividends are already baked into both your symbols and VTI.
- For a buy on a non-trading day (weekend / holiday), we use the next available trading day's close.
- Options, crypto, mutual funds without ticker symbols, and non-USD-listed securities aren't supported in this version.
- Your data stays in your browser. CSVs are parsed locally. The only thing sent to our server is the list of symbol names so we can fetch their price history.