TBB vs. T

Last updated Jun 4, 2026

TBB (AT&T Inc. 5.35% GLB NTS 66) and T (AT&T Inc.) are both stocks. Over the past 5 years, TBB returned 0.64%/yr vs 7.39%/yr for T. At a 0.16 correlation, their price movements are largely independent.

Performance

TBB vs. T - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AT&T Inc. 5.35% GLB NTS 66 (TBB) and AT&T Inc. (T). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TBB achieves a -3.94% return, which is significantly lower than T's -3.08% return.

TBB

• 1D: -1.00%
• 1M: -3.84%
• YTD: -3.94%
• 6M: -4.62%
• 1Y: 0.53%
• 3Y*: 0.95%
• 5Y*: 0.64%
• 10Y*: —

T

• 1D: -4.42%
• 1M: -9.77%
• YTD: -3.08%
• 6M: -4.92%
• 1Y: -12.10%
• 3Y*: 22.12%
• 5Y*: 7.39%
• 10Y*: 3.62%

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

TBB vs. T - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TBB AT&T Inc. 5.35% GLB NTS 66	-3.94%	-3.34%	10.14%	14.65%	-12.18%	-0.72%	7.21%	26.60%	-9.95%	3.33%
T AT&T Inc.	-3.08%	13.97%	44.08%	-2.74%	5.76%	-8.09%	-21.37%	45.55%	-22.25%	18.32%

Correlation

The correlation between TBB and T is -0.11, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.11
Correlation (3Y) Calculated over the trailing 3-year period	0.08
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (All Time) Calculated using the full available price history since Nov 7, 2017	0.16

The correlation between TBB and T shifts across timeframes, from -0.11 (1 year) to 0.16 (all time), reflecting how their relationship changes across market environments.

Fundamentals

EPS TBB : $3.04 T : $3.04
PE Ratio TBB : 6.82 T : 7.73
PEG Ratio TBB : 0.28 T : 0.32
PS Ratio TBB : 1.19 T : 1.35
Total Revenue (TTM) TBB : $125.65B T : $125.65B
Gross Profit (TTM) TBB : $105.41B T : $105.41B
EBITDA (TTM) TBB : $54.70B T : $54.70B

Return for Risk

TBB vs. T — Risk / Return Rank

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

TBB

TBB Risk / Return Rank: 38
TBB Sharpe Ratio Rank: 43
TBB Sortino Ratio Rank: 33
TBB Omega Ratio Rank: 33
TBB Calmar Ratio Rank: 41
TBB Martin Ratio Rank: 42

T

T Risk / Return Rank: 17
T Sharpe Ratio Rank: 17
T Sortino Ratio Rank: 16
T Omega Ratio Rank: 17
T Calmar Ratio Rank: 19
T Martin Ratio Rank: 14

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.

TBB vs. T - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AT&T Inc. 5.35% GLB NTS 66 (TBB) and AT&T Inc. (T). 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.

	TBB	T	Difference
Sharpe ratio Return per unit of total volatility	0.06	-0.56	+0.62
Sortino ratio Return per unit of downside risk	0.16	-0.67	+0.83
Omega ratio Gain probability vs. loss probability	1.02	0.92	+0.10
Calmar ratio Return relative to maximum drawdown	0.05	-0.59	+0.64
Martin ratio Return relative to average drawdown	0.11	-1.20	+1.32
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TBB vs. T - Sharpe Ratio Comparison

The current TBB Sharpe Ratio is 0.06, which is higher than the T Sharpe Ratio of -0.56. The chart below compares the historical Sharpe Ratios of TBB and T, 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

	TBB	T	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.06	-0.56	+0.62
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.06	0.31	-0.25
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.15	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.28	0.38	-0.10

Drawdowns

TBB vs. T - Drawdown Comparison

The maximum TBB drawdown since its inception was -16.09%, smaller than the maximum T drawdown of -64.15%. Use the drawdown chart below to compare losses from any high point for TBB and T.

Drawdown Indicators

	TBB	T	Difference
Max Drawdown Largest peak-to-trough decline	-16.09%	-64.15%	+48.06%
Max Drawdown (1Y) Largest decline over 1 year	-9.90%	-20.60%	+10.70%
Max Drawdown (3Y) Largest decline over 3 years	-12.94%	-20.60%	+7.66%
Max Drawdown (5Y) Largest decline over 5 years	-15.68%	-32.01%	+16.33%
Max Drawdown (10Y) Largest decline over 10 years	—	-42.35%	—
Current Drawdown Current decline from peak	-9.90%	-18.23%	+8.33%
Average Drawdown Average peak-to-trough decline	-3.28%	-15.72%	+12.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.70%	10.08%	-5.38%

Volatility

TBB vs. T - Volatility Comparison

The current volatility for AT&T Inc. 5.35% GLB NTS 66 (TBB) is 1.80%, while AT&T Inc. (T) has a volatility of 6.96%. This indicates that TBB experiences smaller price fluctuations and is considered to be less risky than T based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TBB	T	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.80%	6.96%	-5.16%
Volatility (6M) Calculated over the trailing 6-month period	5.06%	17.27%	-12.21%
Volatility (1Y) Calculated over the trailing 1-year period	8.82%	21.86%	-13.04%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.12%	23.92%	-12.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.95%	23.69%	-12.74%

Dividends

TBB vs. T - Dividend Comparison

TBB's dividend yield for the trailing twelve months is around 6.44%, more than T's 4.71% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
T AT&T Inc.	4.71%	4.47%	4.87%	6.62%	6.66%	8.46%	7.23%	5.22%	7.01%	5.04%	4.51%	5.46%
TBB AT&T Inc. 5.35% GLB NTS 66	6.44%	6.01%	5.48%	5.70%	6.17%	5.13%	3.63%	4.99%	6.07%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both TBB and T in my portfolio?

TBB and T have a correlation of -0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TBB or T?

T has higher volatility (6.96%) compared to TBB (1.80%). In terms of maximum drawdown, TBB dropped -16.09% vs T's -64.15%.

Which has better risk-adjusted returns?

TBB currently has the higher Sharpe Ratio (0.06 vs -0.56), 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.