GIB vs. VST

Last updated Apr 1, 2026

Compare and contrast key facts about CGI Inc (GIB) and Vistra Corp. (VST).

Performance

GIB vs. VST - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in CGI Inc (GIB) and Vistra Corp. (VST). The values are adjusted to include any dividend payments, if applicable.

GIB vs. VST - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GIB CGI Inc	-20.67%	-15.19%	2.07%	24.47%	-2.68%	11.59%	-5.26%	36.80%	12.63%	13.12%
VST Vistra Corp.	-6.69%	17.66%	261.52%	70.73%	5.08%	19.57%	-11.87%	2.46%	24.95%	18.19%

Fundamentals

EPS GIB : $7.51 VST : $4.17
PE Ratio GIB : 9.74 VST : 36.05
PEG Ratio GIB : 1.22 VST : 0.97
PS Ratio GIB : 1.00 VST : 1.92
Total Revenue (TTM) GIB : $16.20B VST : $17.74B
Gross Profit (TTM) GIB : $3.33B VST : $3.96B
EBITDA (TTM) GIB : $2.89B VST : -$2.59B

Returns By Period

In the year-to-date period, GIB achieves a -20.67% return, which is significantly lower than VST's -6.69% return.

GIB

• 1D: 0.72%
• 1M: -0.35%
• YTD: -20.67%
• 6M: -17.73%
• 1Y: -26.39%
• 3Y*: -8.55%
• 5Y*: -2.64%
• 10Y*: 4.37%

VST

• 1D: 1.89%
• 1M: -13.43%
• YTD: -6.69%
• 6M: -23.06%
• 1Y: 28.66%
• 3Y*: 86.61%
• 5Y*: 56.44%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

GIB vs. VST — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

GIB

GIB Risk / Return Rank: 9
GIB Sharpe Ratio Rank: 3
GIB Sortino Ratio Rank: 7
GIB Omega Ratio Rank: 7
GIB Calmar Ratio Rank: 17
GIB Martin Ratio Rank: 13

VST

VST Risk / Return Rank: 59
VST Sharpe Ratio Rank: 61
VST Sortino Ratio Rank: 58
VST Omega Ratio Rank: 57
VST Calmar Ratio Rank: 60
VST Martin Ratio Rank: 59

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

GIB vs. VST - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for CGI Inc (GIB) and Vistra Corp. (VST). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	GIB	VST	Difference
Sharpe ratio Return per unit of total volatility	-1.07	0.52	-1.59
Sortino ratio Return per unit of downside risk	-1.40	1.04	-2.44
Omega ratio Gain probability vs. loss probability	0.82	1.14	-0.32
Calmar ratio Return relative to maximum drawdown	-0.71	0.78	-1.49
Martin ratio Return relative to average drawdown	-1.41	1.65	-3.06
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GIB vs. VST - Sharpe Ratio Comparison

The current GIB Sharpe Ratio is -1.07, which is lower than the VST Sharpe Ratio of 0.52. The chart below compares the historical Sharpe Ratios of GIB and VST, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	GIB	VST	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-1.07	0.52	-1.59
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.12	1.20	-1.32
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.20	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.27	0.73	-0.47

Correlation

The correlation between GIB and VST is 0.22, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

GIB vs. VST - Dividend Comparison

GIB's dividend yield for the trailing twelve months is around 0.63%, more than VST's 0.60% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
GIB CGI Inc	0.63%	0.48%	0.10%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VST Vistra Corp.	0.60%	0.56%	0.63%	2.13%	3.12%	2.64%	2.75%	2.17%	0.00%	0.00%	14.97%

Drawdowns

GIB vs. VST - Drawdown Comparison

The maximum GIB drawdown since its inception was -86.78%, which is greater than VST's maximum drawdown of -53.32%. Use the drawdown chart below to compare losses from any high point for GIB and VST.

Drawdown Indicators

	GIB	VST	Difference
Max Drawdown Largest peak-to-trough decline	-86.78%	-53.32%	-33.46%
Max Drawdown (1Y) Largest decline over 1 year	-35.30%	-34.51%	-0.79%
Max Drawdown (5Y) Largest decline over 5 years	-41.98%	-48.80%	+6.82%
Max Drawdown (10Y) Largest decline over 10 years	-45.98%	—	—
Current Drawdown Current decline from peak	-39.93%	-30.83%	-9.10%
Average Drawdown Average peak-to-trough decline	-32.42%	-13.39%	-19.03%
Ulcer Index Depth and duration of drawdowns from previous peaks	17.78%	16.29%	+1.49%

Volatility

GIB vs. VST - Volatility Comparison

The current volatility for CGI Inc (GIB) is 6.88%, while Vistra Corp. (VST) has a volatility of 18.07%. This indicates that GIB experiences smaller price fluctuations and is considered to be less risky than VST based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GIB	VST	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.88%	18.07%	-11.19%
Volatility (6M) Calculated over the trailing 6-month period	19.97%	38.53%	-18.56%
Volatility (1Y) Calculated over the trailing 1-year period	24.77%	55.49%	-30.72%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.70%	47.36%	-25.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.16%	42.15%	-19.99%

Financials

GIB vs. VST - Profitability Comparison

The chart below illustrates the profitability comparison between CGI Inc and Vistra Corp. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

GIB - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, CGI Inc reported a gross profit of 652.69M and revenue of 4.08B. Therefore, the gross margin over that period was 16.0%.

VST - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Vistra Corp. reported a gross profit of 0.00 and revenue of 3.35B. Therefore, the gross margin over that period was 0.0%.

GIB - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, CGI Inc reported an operating income of 652.69M and revenue of 4.08B, resulting in an operating margin of 16.0%.

VST - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Vistra Corp. reported an operating income of -818.00M and revenue of 3.35B, resulting in an operating margin of -24.5%.

GIB - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, CGI Inc reported a net income of 441.64M and revenue of 4.08B, resulting in a net margin of 10.8%.

VST - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Vistra Corp. reported a net income of 233.00M and revenue of 3.35B, resulting in a net margin of 7.0%.