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Stock Analysis on Net

CoStar Group Inc. (NASDAQ:CSGP)

This company has been moved to the archive! The financial data has not been updated since July 26, 2023.

Analysis of Investments

Microsoft Excel

Adjustment to Net Income (Loss): Mark to Market Available-for-sale Securities

CoStar Group Inc., adjustment to net income

US$ in thousands

Microsoft Excel
12 months ended: Dec 31, 2022 Dec 31, 2021 Dec 31, 2020 Dec 31, 2019 Dec 31, 2018
Net income (as reported) 369,453 292,564 227,128 314,963 238,334
Add: Unrealized gain (loss) on investments — — 189 — —
Less: Reclassification adjustment for realized (gain) loss on investments included in net income — — 541 — —
Net income (adjusted) 369,453 292,564 227,858 314,963 238,334

Based on: 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31).


Net income exhibited a general upward trajectory over the five-year period from 2018 to 2022, despite a notable contraction in 2020. Reported net income grew from 238,334 thousand US dollars in 2018 to 369,453 thousand US dollars by the end of 2022.

Alignment of Reported and Adjusted Net Income
For the majority of the observed period—specifically 2018, 2019, 2021, and 2022—reported net income and adjusted net income were identical. This indicates that mark-to-market adjustments for available-for-sale securities had no material impact on the financial results during these fiscal years.
Analysis of the 2020 Variance
A divergence between reported and adjusted figures occurred exclusively in 2020. Adjusted net income was 227,858 thousand US dollars, which is 730 thousand US dollars higher than the reported net income of 227,128 thousand US dollars. This variance reflects a mark-to-market loss on available-for-sale securities that reduced reported earnings but was excluded from the adjusted figure to isolate operational performance.
Profitability Trends
Following the 2020 dip, net income recovered steadily, increasing by approximately 29% in 2021 and further increasing by approximately 26% in 2022. The return to a state where reported and adjusted figures are identical suggests a stabilization in the valuation of available-for-sale securities relative to the company's total net income.

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Adjusted Profitability Ratios: Mark to Market Available-for-sale Securities (Summary)

CoStar Group Inc., Profitability Ratios: Reported vs. Adjusted

CoStar Group Inc., adjusted profitability ratios

Microsoft Excel
Dec 31, 2022 Dec 31, 2021 Dec 31, 2020 Dec 31, 2019 Dec 31, 2018
Net Profit Margin
Reported net profit margin 16.93% 15.05% 13.69% 22.50% 20.00%
Adjusted net profit margin 16.93% 15.05% 13.73% 22.50% 20.00%
Return on Equity (ROE)
Reported ROE 5.38% 5.12% 4.23% 9.25% 7.89%
Adjusted ROE 5.38% 5.12% 4.24% 9.25% 7.89%
Return on Assets (ROA)
Reported ROA 4.40% 4.03% 3.28% 8.17% 7.19%
Adjusted ROA 4.40% 4.03% 3.29% 8.17% 7.19%

Based on: 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31).


The profitability ratios for the period between 2018 and 2022 exhibit a consistent pattern characterized by a peak in 2019, followed by a significant contraction in 2020 and a steady recovery through 2022.

Net Profit Margin Analysis
The reported net profit margin increased from 20.00% in 2018 to a peak of 22.50% in 2019. A sharp decline occurred in 2020, where the margin fell to 13.69%. A recovery trend was established in the following years, with the margin rising to 15.05% in 2021 and 16.93% in 2022.
Return on Equity (ROE) and Return on Assets (ROA)
Both ROE and ROA followed a trajectory nearly identical to the net profit margins. ROE rose from 7.89% in 2018 to 9.25% in 2019, before dropping to 4.23% in 2020 and gradually climbing back to 5.38% by 2022. Similarly, ROA increased from 7.19% in 2018 to a high of 8.17% in 2019, fell to 3.28% in 2020, and subsequently recovered to 4.40% by the end of 2022.
Comparison of Reported and Adjusted Metrics
The variance between reported and adjusted ratios is immaterial across the analyzed timeframe. For the years 2018, 2019, 2021, and 2022, the reported and adjusted figures are identical. The only minimal discrepancies appear in 2020, where adjusted figures for net profit margin, ROE, and ROA are slightly higher than the reported values. This indicates that the mark-to-market adjustments for available-for-sale securities had a negligible impact on the overall profitability profile during this period.

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Adjusted Net Profit Margin

Microsoft Excel
Dec 31, 2022 Dec 31, 2021 Dec 31, 2020 Dec 31, 2019 Dec 31, 2018
As Reported
Selected Financial Data (US$ in thousands)
Net income 369,453 292,564 227,128 314,963 238,334
Revenues 2,182,399 1,944,135 1,659,019 1,399,719 1,191,832
Profitability Ratio
Net profit margin1 16.93% 15.05% 13.69% 22.50% 20.00%
Adjusted: Mark to Market Available-for-sale Securities
Selected Financial Data (US$ in thousands)
Adjusted net income 369,453 292,564 227,858 314,963 238,334
Revenues 2,182,399 1,944,135 1,659,019 1,399,719 1,191,832
Profitability Ratio
Adjusted net profit margin2 16.93% 15.05% 13.73% 22.50% 20.00%

Based on: 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31).

2022 Calculations

1 Net profit margin = 100 × Net income ÷ Revenues
= 100 × 369,453 ÷ 2,182,399 = 16.93%

2 Adjusted net profit margin = 100 × Adjusted net income ÷ Revenues
= 100 × 369,453 ÷ 2,182,399 = 16.93%


An analysis of the financial performance from 2018 to 2022 reveals a period of volatility followed by a steady recovery in profitability. While absolute net income reached its highest point at the end of the period, the efficiency of profit generation relative to revenue experienced a significant disruption in 2020.

Adjusted Net Income Trends
Adjusted net income demonstrated a fluctuating growth trajectory. After increasing from 238,334 thousand US$ in 2018 to 314,963 thousand US$ in 2019, a contraction occurred in 2020, with values falling to 227,858 thousand US$. However, a consistent upward trend followed in 2021 and 2022, culminating in a five-year peak of 369,453 thousand US$.
Adjusted Net Profit Margin Analysis
The adjusted net profit margin peaked at 22.50% in 2019 before experiencing a sharp decline to 13.73% in 2020. This represents a significant reduction in operational efficiency or an increase in the cost of generating revenue during that fiscal year. Although the margin improved steadily to 15.05% in 2021 and 16.93% in 2022, it remained below the 20% threshold established in 2018.
Comparison of Reported and Adjusted Metrics
There is a high degree of convergence between reported and adjusted figures across the analyzed period. The most notable variance occurred in 2020, where adjusted net income was slightly higher than reported net income. The near-identical nature of the reported and adjusted net profit margins suggests that non-recurring items or adjusting entries had a minimal impact on the overall profitability profile of the organization.

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Adjusted Return on Equity (ROE)

Microsoft Excel
Dec 31, 2022 Dec 31, 2021 Dec 31, 2020 Dec 31, 2019 Dec 31, 2018
As Reported
Selected Financial Data (US$ in thousands)
Net income 369,453 292,564 227,128 314,963 238,334
Stockholders’ equity 6,870,121 5,711,672 5,375,359 3,405,593 3,021,942
Profitability Ratio
ROE1 5.38% 5.12% 4.23% 9.25% 7.89%
Adjusted: Mark to Market Available-for-sale Securities
Selected Financial Data (US$ in thousands)
Adjusted net income 369,453 292,564 227,858 314,963 238,334
Stockholders’ equity 6,870,121 5,711,672 5,375,359 3,405,593 3,021,942
Profitability Ratio
Adjusted ROE2 5.38% 5.12% 4.24% 9.25% 7.89%

Based on: 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31).

2022 Calculations

1 ROE = 100 × Net income ÷ Stockholders’ equity
= 100 × 369,453 ÷ 6,870,121 = 5.38%

2 Adjusted ROE = 100 × Adjusted net income ÷ Stockholders’ equity
= 100 × 369,453 ÷ 6,870,121 = 5.38%


The financial performance from 2018 to 2022 is characterized by a general expansion in adjusted net income paired with a volatile and overall lower trajectory for the adjusted return on equity (ROE).

Adjusted Net Income Trends
Adjusted net income demonstrated an overall upward trend, increasing from US$ 238.3 million in 2018 to US$ 369.5 million in 2022. A temporary contraction was observed in 2020, when income declined to US$ 227.9 million, marking the lowest point in the five-year sequence before returning to growth in 2021 and 2022.
Adjusted Return on Equity (ROE) Volatility
The adjusted ROE experienced a peak of 9.25% in 2019 followed by a significant reduction to 4.24% in 2020. While a gradual recovery occurred in 2021 (5.12%) and 2022 (5.38%), the ROE failed to return to the levels observed prior to 2020.
Capital Efficiency Analysis
A divergence is noted between the growth of adjusted net income and the recovery of the adjusted ROE. Despite adjusted net income reaching its highest level in 2022, the ROE of 5.38% remains considerably lower than the 7.89% recorded in 2018. This pattern suggests that the growth in the equity base has outpaced the growth in net earnings, leading to a relative decline in the efficiency of equity utilization over the analyzed period.

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Adjusted Return on Assets (ROA)

Microsoft Excel
Dec 31, 2022 Dec 31, 2021 Dec 31, 2020 Dec 31, 2019 Dec 31, 2018
As Reported
Selected Financial Data (US$ in thousands)
Net income 369,453 292,564 227,128 314,963 238,334
Total assets 8,402,470 7,256,871 6,915,420 3,853,986 3,312,957
Profitability Ratio
ROA1 4.40% 4.03% 3.28% 8.17% 7.19%
Adjusted: Mark to Market Available-for-sale Securities
Selected Financial Data (US$ in thousands)
Adjusted net income 369,453 292,564 227,858 314,963 238,334
Total assets 8,402,470 7,256,871 6,915,420 3,853,986 3,312,957
Profitability Ratio
Adjusted ROA2 4.40% 4.03% 3.29% 8.17% 7.19%

Based on: 10-K (reporting date: 2022-12-31), 10-K (reporting date: 2021-12-31), 10-K (reporting date: 2020-12-31), 10-K (reporting date: 2019-12-31), 10-K (reporting date: 2018-12-31).

2022 Calculations

1 ROA = 100 × Net income ÷ Total assets
= 100 × 369,453 ÷ 8,402,470 = 4.40%

2 Adjusted ROA = 100 × Adjusted net income ÷ Total assets
= 100 × 369,453 ÷ 8,402,470 = 4.40%


An analysis of the financial performance from 2018 to 2022 reveals a period of volatility followed by a recovery in absolute profitability, although asset efficiency has not returned to previous peaks.

Adjusted Net Income Trends
Adjusted net income exhibited a general upward trajectory over the five-year period, increasing from 238.3 million US dollars in 2018 to a peak of 369.5 million US dollars by December 31, 2022. A temporary contraction occurred in 2020, where income decreased to 227.9 million US dollars, the lowest point in the observed timeframe. Following this dip, profitability recovered in 2021 and grew significantly in 2022.
Adjusted Return on Assets (ROA)
The adjusted ROA experienced a significant decline following a peak of 8.17% in 2019. A sharp decrease to 3.29% was recorded in 2020, coinciding with the decline in net income. Although the ratio improved steadily to 4.03% in 2021 and 4.40% in 2022, these figures remain substantially lower than the efficiency levels observed in 2018 and 2019.
Asset Efficiency and Profitability Divergence
A notable divergence exists between the growth of adjusted net income and the adjusted ROA. While adjusted net income in 2022 was approximately 17.5% higher than the 2019 level, the adjusted ROA in 2022 (4.40%) was nearly 46% lower than the 2019 ROA (8.17%). This trend indicates that the growth in the total asset base significantly outpaced the growth in net income during this period, leading to a reduction in the overall return generated per dollar of assets.

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