
Republican · House · CO
Doug Lamborn's stock portfolio and returns vs the S&P 500, built from publicly disclosed congressional trades. Simulated using FIFO position matching and time-weighted returns.
Portfolio Value
$83K
Unrealized P&L
$31K
+60.8%
Realized P&L
$10K
Open Positions
1
Performance vs S&P 500
1M
+13.9%
SPY -0.8%
α +14.8%
3M
+51.8%
SPY +14.0%
α +37.8%
6M
+43.9%
SPY +7.8%
α +36.0%
1Y
+51.8%
SPY +24.0%
α +27.8%
3Y
+127.9%
SPY +73.2%
α +54.8%
5Y
+78.5%
SPY +75.5%
α +3.0%
All
+224.7%
SPY +99.3%
α +125.3%
Head-to-head with S&P 500
Live Holdings1 positions
| Ticker | Shares | Current | Value | Return |
|---|---|---|---|---|
| 525 | $158.07 | $83K | +60.8% |
About this simulation
This portfolio is a simulation built from publicly disclosed STOCK Act filings. Since politicians only report trade amounts as ranges (e.g., “$1,001 - $15,000”), we use the midpoint of each range and the closing price on the trade date to estimate share counts. Returns are calculated using Time-Weighted Return (TWR), the industry standard for measuring stock-picking skill independent of cash flow timing. Read the full methodology →