GPC vs. IDGT

Last updated Jun 4, 2026

GPC (Genuine Parts Company) is a stock, while IDGT (iShares U.S. Digital Infrastructure and Real Estate ETF) is Technology Equities fund tracking the S&P Data Center, Tower REIT and Communications Equipment Index - Benchmark TR Gross. Over the past 10 years, GPC returned 3.10%/yr vs 14.38%/yr for IDGT. At a 0.49 correlation, their price movements are largely independent.

Performance

GPC vs. IDGT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Genuine Parts Company (GPC) and iShares U.S. Digital Infrastructure and Real Estate ETF (IDGT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, GPC achieves a -19.34% return, which is significantly lower than IDGT's 53.90% return. Over the past 10 years, GPC has underperformed IDGT with an annualized return of 3.10%, while IDGT has yielded a comparatively higher 14.38% annualized return.

GPC

• 1D: -1.08%
• 1M: -5.06%
• YTD: -19.34%
• 6M: -22.79%
• 1Y: -20.52%
• 3Y*: -11.36%
• 5Y*: -2.89%
• 10Y*: 3.10%

IDGT

• 1D: -1.58%
• 1M: 8.43%
• YTD: 53.90%
• 6M: 49.82%
• 1Y: 63.37%
• 3Y*: 25.08%
• 5Y*: 13.30%
• 10Y*: 14.38%

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

GPC vs. IDGT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GPC Genuine Parts Company	-19.34%	8.70%	-13.22%	-18.12%	26.82%	43.39%	-2.19%	14.05%	4.11%	2.45%
IDGT iShares U.S. Digital Infrastructure and Real Estate ETF	53.90%	6.79%	26.71%	-6.09%	-17.90%	42.14%	8.78%	17.39%	-1.97%	11.81%

Correlation

The correlation between GPC and IDGT is 0.26, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.26
Correlation (3Y) Calculated over the trailing 3-year period	0.34
Correlation (5Y) Calculated over the trailing 5-year period	0.43
Correlation (10Y) Calculated over the trailing 10-year period	0.44
Correlation (All Time) Calculated using the full available price history since Jul 16, 2001	0.49

Over the past year, the correlation between GPC and IDGT has dropped to 0.26 - well below their long-term average of 0.49, suggesting their price drivers have been diverging.

Return for Risk

GPC vs. IDGT — Risk / Return Rank

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

GPC

GPC Risk / Return Rank: 14
GPC Sharpe Ratio Rank: 11
GPC Sortino Ratio Rank: 13
GPC Omega Ratio Rank: 13
GPC Calmar Ratio Rank: 21
GPC Martin Ratio Rank: 12

IDGT

IDGT Risk / Return Rank: 89
IDGT Sharpe Ratio Rank: 89
IDGT Sortino Ratio Rank: 86
IDGT Omega Ratio Rank: 84
IDGT Calmar Ratio Rank: 94
IDGT Martin Ratio Rank: 91

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.

GPC vs. IDGT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Genuine Parts Company (GPC) and iShares U.S. Digital Infrastructure and Real Estate ETF (IDGT). 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.

	GPC	IDGT	Difference
Sharpe ratio: Return per unit of total volatility	-0.71	3.13	-3.84
Sortino ratio: Return per unit of downside risk	-0.85	3.96	-4.82
Omega ratio: Gain probability vs. loss probability	0.89	1.52	-0.63
Calmar ratio: Return relative to maximum drawdown	-0.55	7.54	-8.09
Martin ratio: Return relative to average drawdown	-1.25	22.58	-23.83
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GPC vs. IDGT - Sharpe Ratio Comparison

The current GPC Sharpe Ratio is -0.71, which is lower than the IDGT Sharpe Ratio of 3.13. The chart below compares the historical Sharpe Ratios of GPC and IDGT, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	GPC	IDGT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.71	3.13	-3.84
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.11	0.58	-0.68
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.11	0.62	-0.51
Sharpe Ratio (All Time) Calculated using the full available price history	0.37	0.18	+0.19

Drawdowns

GPC vs. IDGT - Drawdown Comparison

The maximum GPC drawdown since its inception was -54.89%, smaller than the maximum IDGT drawdown of -77.95%. Use the drawdown chart below to compare losses from any high point for GPC and IDGT.

Drawdown Indicators

	GPC	IDGT	Difference
Max Drawdown Largest peak-to-trough decline	-54.89%	-77.95%	+23.06%
Max Drawdown (1Y) Largest decline over 1 year	-37.48%	-8.45%	-29.03%
Max Drawdown (3Y) Largest decline over 3 years	-40.81%	-23.74%	-17.07%
Max Drawdown (5Y) Largest decline over 5 years	-45.70%	-35.83%	-9.87%
Max Drawdown (10Y) Largest decline over 10 years	-54.89%	-36.88%	-18.01%
Current Drawdown Current decline from peak	-42.29%	-1.58%	-40.71%
Average Drawdown Average peak-to-trough decline	-10.28%	-19.91%	+9.63%
Ulcer Index Depth and duration of drawdowns from previous peaks	16.49%	2.81%	+13.68%

Volatility

GPC vs. IDGT - Volatility Comparison

Genuine Parts Company (GPC) has a higher volatility of 8.30% compared to iShares U.S. Digital Infrastructure and Real Estate ETF (IDGT) at 7.87%. This indicates that GPC's price experiences larger fluctuations and is considered to be riskier than IDGT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GPC	IDGT	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.30%	7.87%	+0.43%
Volatility (6M) Calculated over the trailing 6-month period	25.03%	16.35%	+8.68%
Volatility (1Y) Calculated over the trailing 1-year period	28.89%	20.41%	+8.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	26.93%	23.20%	+3.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.11%	23.29%	+4.82%

Dividends

GPC vs. IDGT - Dividend Comparison

GPC's dividend yield for the trailing twelve months is around 4.23%, more than IDGT's 0.72% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GPC Genuine Parts Company	4.23%	3.35%	3.43%	2.74%	2.06%	2.33%	3.15%	2.87%	3.00%	2.84%	2.75%	2.86%
IDGT iShares U.S. Digital Infrastructure and Real Estate ETF	0.72%	1.17%	1.64%	0.37%	0.30%	0.28%	0.60%	0.42%	0.65%	0.57%	0.75%	0.72%

Frequently Asked Questions

Can I hold both GPC and IDGT in my portfolio?

GPC and IDGT have a correlation of 0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, GPC or IDGT?

GPC has higher volatility (8.30%) compared to IDGT (7.87%). In terms of maximum drawdown, GPC dropped -54.89% vs IDGT's -77.95%.

Which has better risk-adjusted returns?

IDGT currently has the higher Sharpe Ratio (3.13 vs -0.71), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.