CoStar Stock Rockets 5.3% With 5-Day Winning Streak
CoStar (CSGP) stock hit day 5 of a continuous streak of days with gains, with cumulative gains over this period amounting to a 5.3% return. The company has gained about $1.6 Bil in value over the last 5 days, with its current market capitalization at about $33 Bil. The stock remains 8.8% above its value at the end of 2024. This compares with year-to-date returns of 15.5% for the S&P 500.
CSGP provides information, analytics, and online marketplace services for commercial real estate, offering property inventories, lease data management, and searchable databases for industry professionals. After this rally, is CSGP still a buy – or is it time to lock in gains? Deep dive with Buy or Sell CSGP.
A single stock can be risky, but there is a huge value to a broader, diversified approach. Should you buy one stock you like or build a portfolio designed to win across cycles? Our numbers show that the Trefis High Quality Portfolio has turned stock-picking uncertainty into market-beating consistency. This portfolio is incorporated in the asset allocation strategy of Empirical Asset Management — a Boston area wealth manager and Trefis partner — whose asset allocation framework yielded positive returns during the 2008-09 period when the S&P lost more than 40%.
Comparing CSGP Stock Returns With The S&P 500
The following table summarizes the return for CSGP stock vs. the S&P 500 index over different periods, including the current streak:
| Return Period | CSGP | S&P 500 |
|---|---|---|
| 1D | 0.3% | 0.8% |
| 5D (Current Streak) | 5.3% | 1.9% |
| 1M (21D) | -6.3% | 2.8% |
| 3M (63D) | -16.6% | 6.3% |
| YTD 2025 | 8.8% | 15.5% |
| 2024 | -18.1% | 23.3% |
| 2023 | 13.1% | 24.2% |
| 2022 | -2.2% | -19.4% |
What is the point? Momentum often precedes conviction. A multi-day win streak can signal growing investor confidence or spark follow-on buying. Tracking such trends can help you ride the strength, or prepare for a well-timed entry if momentum fades.
Gains and Losses Streaks: S&P 500 Constituents
There are currently 37 S&P constituents with 3 days or more of consecutive gains and 51 constituents with 3 days or more of consecutive losses.
| Consecutive Days | # of Gainers | # of Losers |
|---|---|---|
| 3D | 21 | 33 |
| 4D | 4 | 14 |
| 5D | 2 | 4 |
| 6D | 6 | 0 |
| 7D or more | 4 | 0 |
| Total >=3 D | 37 | 51 |
Key Financials for CoStar (CSGP)
Last 2 Fiscal Years:
| Metric | FY2023 | FY2024 |
|---|---|---|
| Revenues | $2.5 Bil | $2.7 Bil |
| Operating Income | $282.3 Mil | $4.7 Mil |
| Net Income | $374.7 Mil | $138.7 Mil |
Last 2 Fiscal Quarters:
| Metric | 2025 FQ1 | 2025 FQ2 |
|---|---|---|
| Revenues | $732.2 Mil | $781.3 Mil |
| Operating Income | $-42.8 Mil | $-27.2 Mil |
| Net Income | $-14.8 Mil | $6.2 Mil |
While CSGP stock looks attractive given its winning streak, investing in a single stock without detailed, thorough analysis can be risky. The Trefis High Quality (HQ) Portfolio, with a collection of 30 stocks, has a track record of comfortably outperforming its benchmark that includes all 3 — the S&P 500, S&P mid-cap, and Russell 2000 indices. Why is that? As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index; less of a roller-coaster ride, as evident in HQ Portfolio performance metrics.