$1,000 in CoStar Group, Inc. in 2024 → $369 today
If you'd invested $1,000 in CoStar Group, Inc. (CSGP) on January 1, 2024, buying at the December 2023 month-end close of $87.42, and held to the latest close on 2026-10-16, you'd have $369. That's a -63.1% price return. Through September 2026, the latest month the fund has reported, the same $1,000 became $313 in CSGP and $1,660 in an S&P 500 index fund (TSP C Fund). The fund figure includes reinvested dividends; the stock figure does not, so the comparison favors the fund.
Nearby years: 2020 · 2021 · 2022 · 2023 · 2025 · 2026 all years →
FAQ
How much is $1,000 invested in CSGP in 2024 worth today?
$369 at the latest close (2026-10-16), a price return of -63.1%.
Did $1,000 in CSGP in 2024 beat the market?
No. From the December 2023 month-end through September 2026, CSGP trailed an S&P 500 index fund by 81.1%: the fund (the TSP C Fund, dividends included) turned the same $1,000 into $1,660, and CSGP (price only) turned it into $313.
What does "month-end close" mean for this calculation?
It is a month's last price on IEX: the last regular-session trade on the month's final trading day. Here the buy is the December 2023 close, the price entering 2024, and the position is valued at the latest close (2026-10-16).
Is the 2024–2026 return in CSGP typical?
No single year is typical. CSGP's best calendar year since 2016 was 2019, at +78.0%, and its worst was 2026 (year to date), at -52.0%.
Methodology
The figures use CSGP's price data from January 2024 through 2026-10-16.
The entry price is the December 2023 month-end close and the exit is the latest close, both from IEX Historical Data. Price return: adjusted for stock splits, dividends not included. The market comparison uses the TSP C Fund's monthly returns, published at tsp.gov.
Buying at a month-end close misses the highs and lows inside the month, and the figures ignore taxes and fees. To try another amount, month or monthly contribution, use the CSGP calculator, which also shows the best and worst entry points in your window.
Compute your own CSGP scenario
Prices as of the last IEX trade on 2026-10-16. Data delayed end-of-day.