CSG Systems International, Inc.
CSGSNASDAQTechnology
$80.69
+$0.00(+0.00%)
Market Cap$2.3B
P/E Ratio—
52W High$80.73
52W Low$60.54
CSG Systems International, Inc. (CSGS) Stock Price History
Key milestones, OHLCV table, annual returns, peers & What If.
csgs · EOD price history · split-adj. · FMP · as of May 15, 2026
5-Year High5Y
$80.73
May 13, 2026
-0.0% from here
5-Year Low5Y
$39.56
Jun 17, 2024
+104.0% from low
IPO Priceadj.
$11.50
Feb 28, 1996
+601.7% since IPO
1 Year Ago
$64.60
Jun 9, 2025
+24.9% in 1Y
5 Years Ago
$43.09
Jun 8, 2021
+87.3% in 5Y
10 Years Ago
$43.25
Jun 8, 2016
+86.6% in 10Y
Historical Price Data · CSGS
| Date↓ | Open↕ | High↕ | Low↕ | Close↕ | Close (Unadj.) ⓘ | Volume↕ | Change %↕ |
|---|---|---|---|---|---|---|---|
| May 15, 2026 | $80.66 | $80.69 | $80.66 | $80.69 | $80.69 | 0K | +0.04% |
| May 14, 2026 | $80.69 | $80.69 | $80.69 | $80.69 | $80.69 | 0K | +0.00% |
| May 13, 2026 | $80.66 | $80.73 | $80.66 | $80.69 | $80.69 | 792K | +0.04% |
| May 12, 2026 | $80.72 | $80.73 | $80.65 | $80.69 | $80.69 | 1.3M | -0.04% |
| May 11, 2026 | $80.32 | $80.37 | $80.10 | $80.35 | $80.35 | 356K | +0.04% |
| May 8, 2026 | $80.37 | $80.47 | $80.34 | $80.38 | $80.38 | 348K | +0.01% |
| May 7, 2026 | $80.37 | $80.55 | $80.30 | $80.39 | $80.39 | 418K | +0.02% |
| May 6, 2026 | $80.47 | $80.47 | $80.32 | $80.34 | $80.34 | 260K | -0.16% |
| May 5, 2026 | $80.37 | $80.40 | $80.30 | $80.35 | $80.35 | 271K | -0.02% |
| May 4, 2026 | $80.36 | $80.39 | $80.25 | $80.34 | $80.34 | 294K | -0.02% |
| May 1, 2026 | $80.50 | $80.52 | $80.36 | $80.40 | $80.40 | 187K | -0.12% |
| Apr 30, 2026 | $80.39 | $80.47 | $80.25 | $80.41 | $80.41 | 391K | +0.02% |
| Apr 29, 2026 | $80.13 | $80.39 | $80.13 | $80.35 | $80.35 | 328K | +0.27% |
| Apr 28, 2026 | $80.58 | $80.65 | $80.34 | $80.36 | $80.36 | 525K | -0.27% |
| Apr 27, 2026 | $80.34 | $80.57 | $80.34 | $80.39 | $80.39 | 339K | +0.06% |
| Apr 24, 2026 | $80.23 | $80.37 | $80.19 | $80.33 | $80.33 | 209K | +0.12% |
| Apr 23, 2026 | $80.26 | $80.36 | $80.19 | $80.33 | $80.33 | 277K | +0.09% |
| Apr 22, 2026 | $80.27 | $80.36 | $80.22 | $80.26 | $80.26 | 236K | -0.01% |
| Apr 21, 2026 | $80.29 | $80.38 | $80.25 | $80.31 | $80.31 | 314K | +0.02% |
| Apr 20, 2026 | $80.31 | $80.33 | $80.23 | $80.29 | $80.29 | 210K | -0.02% |
Showing 1–20 of 1,240 records
Annual Stock Price Performance · CSGS
Jan 1 → Dec 31 · 6 years2026+5.2%$76.70 → $80.69
+5.2%
2025+48.7%$51.59 → $76.69
+48.7%
2024-3.1%$52.74 → $51.11
-3.1%
2023-7.7%$57.66 → $53.21
-7.7%
2022-0.8%$57.65 → $57.20
-0.8%
2021+33.3%$43.22 → $57.62
+33.3%
Best Year2025 · +48.7%
Worst Year2023 · -7.7%
Positive Years3 / 6
Avg Annual Return+12.6%
6Y Total Return+86.7%
6Y CAGR~+11.0% / yr
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If you invested $1,000 in CSGS 10 years ago — how much would it be worth today?
INVESTED$1,000
→TODAY WORTH$1,866
Total Return+86.6%
CAGR~+6.4% / yr
Profit+$866
Based on Jun 8, 2016 · $43.25Split & dividend adjustedNo fees assumed
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About Price History & OHLCV Data
CSG Systems International, Inc. (CSGS) is classified under Technology and trades on NASDAQ. The quote snapshot on this page shows a last price of $80.69. Use the chart and OHLCV table below for open, high, low, close and volume over time.
Annual performance bars, similar companies in the same sector, and the What If calculator help you explore long-horizon returns without leaving this tab. Figures use split-adjusted end-of-day prices where noted; this content is informational, not investment advice.
Data: FMP EOD · split-adjusted where noted · not investment advice
Frequently Asked Questions
CSGS price history · 5 questionsEnd-of-day prices are sourced from market data providers (Financial Modeling Prep). Corporate actions such as splits may be reflected in adjusted series; always verify critical values with your broker or official filings.
CSGS historical stock pricesFMP EOD datasplit-adjusted OHLCV