CSGP monthly performance report
Monthly CSGP research: returns, drawdown, relative strength, seasonality, and key stats.
CSGP monthly report
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Key takeaways
- CoStar Group (CSGP) closed September 2026 at $31.52, down 1.71% for the month and −63.69% over the trailing 12 months.
- Year-to-date, CSGP is −53.12%, underperforming the S&P 500 which has returned +11.58% YTD.
- The stock is trading −27.54% versus its 200-day moving average ($43.50), a cautious technical signal.
- Over the past three years, CSGP has underperformed the S&P 500 by −129.87%, with a relative strength index reading of 23.1.
- Win rate over the trailing 39 months stands at 30.8% — 12 positive months versus 27 negative months.
CoStar Group ended September 2026 at $31.52, posting a monthly return of −1.71%. The S&P 500 returned −0.80% over the same window, leaving relative performance at −0.91%.
The current quarter stands at +11.30% (Q3 2026 (QTD)), while medium-term trend remains soft: price is −27.54% versus the 200-day moving average ($43.50).
Year-to-date, CSGP is −53.12% against SPY +11.58%, a gap of −64.70%. The stock is currently −65.37% below its 52-week high, with maximum 3-year drawdown at −72.23%.
| Period | CSGP | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | +3.48% | −0.45% | +3.93% |
| 1 Week | +1.97% | −1.21% | +3.18% |
| 1 Month | −1.71% | −0.80% | −0.91% |
| 3 Months | −7.92% | +3.13% | −11.05% |
| 6 Months | −34.90% | +12.36% | −47.26% |
| YTD | −53.12% | +11.58% | −64.70% |
| 12 Months | −63.69% | +15.74% | −79.43% |
| 3 Years | −60.92% | +68.95% | −129.87% |
| 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) | +11.30% |
| Year | Return |
|---|---|
| 2023 | +13.08% |
| 2024 | −18.08% |
| 2025 | −6.08% |
| 2026 | −53.12% |
| Metric | Value |
|---|---|
| 52-Week High | $91.01 (2025-09-08) |
| 52-Week Low | $25.89 (2026-07-29) |
| Current Price | $31.52 |
| 200-Day Moving Average | $43.50 |
| Price vs 200DMA | −27.54% |
| 3-Year Maximum Drawdown | −72.23% (2026-07-23) |
| Current Drawdown from 52W High | −65.37% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 23.1 |
| 3-Year Excess Return vs S&P 500 | −129.87% |
| RS Peak | 105.4 (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 −1.71% in the latest monthly window ending 2026-09-14.
Has CSGP outperformed SPY year to date?
YTD CSGP: −53.12% vs SPY: +11.58%.
What is CSGP's 12-month return?
−63.69% over the trailing 12 months.
Is CSGP above or below its 200-day moving average?
Price is −27.54% versus 200DMA ($43.50).
What is the maximum drawdown in the 3-year window?
−72.23% on 2026-07-23.