CSGP monthly performance report
View CSGP's monthly returns, drawdown, and seasonality trends — updated every month.
CSGP monthly report
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Key takeaways
- CoStar Group (CSGP) closed September 2026 at $29.09, down 9.29% for the month and −67.41% over the trailing 12 months.
- Year-to-date, CSGP is −56.74%, underperforming the S&P 500 which has returned +11.70% YTD.
- The stock is trading −31.99% versus its 200-day moving average ($42.77), a cautious technical signal.
- Over the past three years, CSGP has underperformed the S&P 500 by −135.20%, with a relative strength index reading of 21.3.
- Win rate over the trailing 39 months stands at 30.8% — 12 positive months versus 27 negative months.
CoStar Group ended September 2026 at $29.09, posting a monthly return of −9.29%. The S&P 500 returned −0.70% over the same window, leaving relative performance at −8.59%.
The current quarter stands at +2.72% (Q3 2026 (QTD)), while medium-term trend remains soft: price is −31.99% versus the 200-day moving average ($42.77).
Year-to-date, CSGP is −56.74% against SPY +11.70%, a gap of −68.43%. The stock is currently −67.93% below its 52-week high, with maximum 3-year drawdown at −72.23%.
| Period | CSGP | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | −0.72% | −0.12% | −0.60% |
| 1 Week | −4.50% | −0.34% | −4.16% |
| 1 Month | −9.29% | −0.70% | −8.59% |
| 3 Months | −9.01% | +2.80% | −11.81% |
| 6 Months | −33.33% | +13.85% | −47.18% |
| YTD | −56.74% | +11.70% | −68.43% |
| 12 Months | −67.41% | +15.01% | −82.42% |
| 3 Years | −63.51% | +71.69% | −135.20% |
| Rank | Month | Return |
|---|---|---|
| #1 | Jul 2025 | +18.40% |
| #2 | Nov 2023 | +13.12% |
| #3 | Nov 2024 | +11.75% |
| #4 | Aug 2026 | +11.51% |
| #5 | Mar 2024 | +11.00% |
| Rank | Month | Return |
|---|---|---|
| #1 | Feb 2026 | −27.43% |
| #2 | Oct 2025 | −18.44% |
| #3 | May 2024 | −14.60% |
| #4 | Apr 2026 | −14.20% |
| #5 | Jun 2026 | −12.05% |
| Quarter | Return |
|---|---|
| Q2 2025 | +1.48% |
| Q3 2025 | +4.94% |
| Q4 2025 | −20.30% |
| Q1 2026 | −40.01% |
| Q2 2026 | −29.80% |
| Q3 2026 (QTD) | +2.72% |
| Year | Return |
|---|---|
| 2023 | +13.08% |
| 2024 | −18.08% |
| 2025 | −6.08% |
| 2026 | −56.74% |
| Metric | Value |
|---|---|
| 52-Week High | $90.72 (2025-09-17) |
| 52-Week Low | $25.89 (2026-07-29) |
| Current Price | $29.09 |
| 200-Day Moving Average | $42.77 |
| Price vs 200DMA | −31.99% |
| 3-Year Maximum Drawdown | −72.23% (2026-07-23) |
| Current Drawdown from 52W High | −67.93% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 21.3 |
| 3-Year Excess Return vs S&P 500 | −135.20% |
| RS Peak | 105 (Oct 2023) |
| RS Trough | 20.5 (Jul 2026) |
| Status | Underperforming Benchmark |
Frequently asked questions
What was CSGP's return for this report period?
CSGP returned −9.29% in the latest monthly window ending 2026-09-18.
Has CSGP outperformed SPY year to date?
YTD CSGP: −56.74% vs SPY: +11.70%.
What is CSGP's 12-month return?
−67.41% over the trailing 12 months.
Is CSGP above or below its 200-day moving average?
Price is −31.99% versus 200DMA ($42.77).
What is the maximum drawdown in the 3-year window?
−72.23% on 2026-07-23.