T vs. BLK

Last updated Jun 9, 2026

T (AT&T Inc.) and BLK (BlackRock, Inc.) are both stocks. T operates in Telecom Services (Communication Services), while BLK operates in Asset Management (Financial Services). Over the past 10 years, T returned 2.86%/yr vs 13.89%/yr for BLK. At a 0.31 correlation, their price movements are largely independent.

Performance

T vs. BLK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AT&T Inc. (T) and BlackRock, Inc. (BLK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, T achieves a -7.40% return, which is significantly lower than BLK's -6.02% return. Over the past 10 years, T has underperformed BLK with an annualized return of 2.86%, while BLK has yielded a comparatively higher 13.89% annualized return.

T

• 1D: -1.10%
• 1M: -10.57%
• YTD: -7.40%
• 6M: -7.40%
• 1Y: -16.38%
• 3Y*: 18.39%
• 5Y*: 6.60%
• 10Y*: 2.86%

BLK

• 1D: -0.08%
• 1M: -7.79%
• YTD: -6.02%
• 6M: -5.28%
• 1Y: 2.69%
• 3Y*: 15.91%
• 5Y*: 5.20%
• 10Y*: 13.89%

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

T vs. BLK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
T AT&T Inc.	-7.40%	13.97%	44.08%	-2.74%	5.76%	-8.09%	-21.37%	45.55%	-22.25%	-4.01%
BLK BlackRock, Inc.	-6.02%	6.55%	29.29%	17.86%	-20.40%	29.39%	47.21%	31.87%	-21.59%	38.20%

Correlation

The correlation between T and BLK is 0.00, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.00
Correlation (3Y) Calculated over the trailing 3-year period	0.13
Correlation (5Y) Calculated over the trailing 5-year period	0.26
Correlation (10Y) Calculated over the trailing 10-year period	0.30
Correlation (All Time) Calculated using the full available price history since Oct 4, 1999	0.31

Over the past year, the correlation between T and BLK has dropped to 0.00 - well below their long-term average of 0.31, suggesting their price drivers have been diverging.

Fundamentals

EPS T : $3.04 BLK : $38.89
PE Ratio T : 7.39 BLK : 25.58
PS Ratio T : 1.29 BLK : 6.22
Total Revenue (TTM) T : $125.65B BLK : $25.71B
Gross Profit (TTM) T : $105.41B BLK : $15.21B
EBITDA (TTM) T : $54.70B BLK : $9.79B

Return for Risk

T vs. BLK — Risk / Return Rank

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

T

T Risk / Return Rank: 11
T Sharpe Ratio Rank: 11
T Sortino Ratio Rank: 12
T Omega Ratio Rank: 13
T Calmar Ratio Rank: 14
T Martin Ratio Rank: 4

BLK

BLK Risk / Return Rank: 42
BLK Sharpe Ratio Rank: 46
BLK Sortino Ratio Rank: 38
BLK Omega Ratio Rank: 38
BLK Calmar Ratio Rank: 45
BLK Martin Ratio Rank: 45

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.

T vs. BLK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AT&T Inc. (T) and BlackRock, Inc. (BLK). 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.

	T	BLK	Difference
Sharpe ratio: Return per unit of total volatility	-0.75	0.10	-0.85
Sortino ratio: Return per unit of downside risk	-0.98	0.32	-1.30
Omega ratio: Gain probability vs. loss probability	0.89	1.04	-0.16
Calmar ratio: Return relative to maximum drawdown	-0.75	0.12	-0.87
Martin ratio: Return relative to average drawdown	-1.59	0.27	-1.86
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

T vs. BLK - Sharpe Ratio Comparison

The current T Sharpe Ratio is -0.75, which is lower than the BLK Sharpe Ratio of 0.10. The chart below compares the historical Sharpe Ratios of T and BLK, 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

	T	BLK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.75	0.10	-0.85
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.28	0.20	+0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.12	0.50	-0.38
Sharpe Ratio (All Time) Calculated using the full available price history	0.38	0.59	-0.21

Drawdowns

T vs. BLK - Drawdown Comparison

The maximum T drawdown since its inception was -64.15%, which is greater than BLK's maximum drawdown of -60.36%. Use the drawdown chart below to compare losses from any high point for T and BLK.

Drawdown Indicators

	T	BLK	Difference
Max Drawdown Largest peak-to-trough decline	-64.15%	-60.36%	-3.79%
Max Drawdown (1Y) Largest decline over 1 year	-21.87%	-22.45%	+0.58%
Max Drawdown (3Y) Largest decline over 3 years	-21.87%	-23.74%	+1.87%
Max Drawdown (5Y) Largest decline over 5 years	-32.01%	-43.90%	+11.89%
Max Drawdown (10Y) Largest decline over 10 years	-42.35%	-43.90%	+1.55%
Current Drawdown Current decline from peak	-21.87%	-15.94%	-5.93%
Average Drawdown Average peak-to-trough decline	-15.72%	-11.93%	-3.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.34%	9.90%	+0.44%

Volatility

T vs. BLK - Volatility Comparison

The current volatility for AT&T Inc. (T) is 7.50%, while BlackRock, Inc. (BLK) has a volatility of 8.39%. This indicates that T experiences smaller price fluctuations and is considered to be less risky than BLK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	T	BLK	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.50%	8.39%	-0.89%
Volatility (6M) Calculated over the trailing 6-month period	17.57%	20.52%	-2.95%
Volatility (1Y) Calculated over the trailing 1-year period	21.98%	25.84%	-3.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.97%	26.77%	-2.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.71%	27.77%	-4.06%

Dividends

T vs. BLK - Dividend Comparison

T's dividend yield for the trailing twelve months is around 4.93%, more than BLK's 2.20% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BLK BlackRock, Inc.	2.20%	1.95%	1.99%	2.46%	2.75%	1.80%	2.01%	2.63%	3.08%	1.95%	2.41%	2.56%
T AT&T Inc.	4.93%	4.47%	4.87%	6.62%	6.66%	8.46%	7.23%	5.22%	7.01%	5.04%	4.51%	5.46%

Financials

Frequently Asked Questions

Can I hold both T and BLK in my portfolio?

T and BLK have a correlation of 0.00, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, T or BLK?

BLK has higher volatility (8.39%) compared to T (7.50%). In terms of maximum drawdown, T dropped -64.15% vs BLK's -60.36%.

Which has better risk-adjusted returns?

BLK currently has the higher Sharpe Ratio (0.10 vs -0.75), 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.