TBB vs. T

Last updated Jul 17, 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 0.68%/yr vs 6.50%/yr for T. At a 0.15 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 -4.49% return, which is significantly higher than T's -8.33% return.

TBB

• 1D: -0.19%
• 1M: -0.19%
• 6M: -6.71%
• YTD: -4.49%
• 1Y: -4.37%
• 3Y*: 3.69%
• 5Y*: 0.68%
• 10Y*: —

T

• 1D: 2.57%
• 1M: -3.83%
• 6M: -5.16%
• YTD: -8.33%
• 1Y: -14.60%
• 3Y*: 23.91%
• 5Y*: 6.50%
• 10Y*: 2.02%

*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	-4.49%	-3.34%	10.14%	14.65%	-12.18%	-0.72%	7.21%	26.60%	-9.95%	3.45%
T AT&T Inc.	-8.33%	13.97%	44.08%	-2.74%	5.76%	-8.09%	-21.37%	45.55%	-22.25%	16.76%

Correlation

The correlation between TBB and T is -0.13, 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	-0.13
Correlation (3Y) Calculated over the trailing 3-year period	0.07
Correlation (5Y) Calculated over the trailing 5-year period	0.13
Correlation (All Time) Calculated using the full available price history since Nov 6, 2017	0.15

The correlation between TBB and T shifts across timeframes, from -0.13 (1 year) to 0.15 (all time), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap TBB : $148.55B T : $152.79B
EPS TBB : $3.05 T : $3.05
PE Ratio TBB : 6.76 T : 7.20
PEG Ratio TBB : 0.28 T : 0.30
PS Ratio TBB : 1.18 T : 1.25
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: 24
TBB Sharpe Ratio Rank: 21
TBB Sortino Ratio Rank: 18
TBB Omega Ratio Rank: 19
TBB Calmar Ratio Rank: 31
TBB Martin Ratio Rank: 30

T

T Risk / Return Rank: 19
T Sharpe Ratio Rank: 16
T Sortino Ratio Rank: 17
T Omega Ratio Rank: 18
T Calmar Ratio Rank: 26
T Martin Ratio Rank: 18

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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	TBB	T	Difference
Sharpe ratio: Return per unit of total volatility	-0.53	-0.62	+0.09
Sortino ratio: Return per unit of downside risk	-0.71	-0.75	+0.04
Omega ratio: Gain probability vs. loss probability	0.92	0.91	+0.01
Calmar ratio: Return relative to maximum drawdown	-0.38	-0.51	+0.12
Martin ratio: Return relative to average drawdown	-0.74	-1.14	+0.40

TBB vs. T - Sharpe Ratio Comparison

The current TBB Sharpe Ratio is -0.53, which is comparable to the T Sharpe Ratio of -0.62. 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.

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	-11.47%	-28.89%	+17.42%
Max Drawdown (3Y) Largest decline over 3 years	-11.47%	-28.89%	+17.42%
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	-10.42%	-22.66%	+12.24%
Average Drawdown Average peak-to-trough decline	-3.38%	-15.74%	+12.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.91%	12.80%	-6.89%

Volatility

TBB vs. T - Volatility Comparison

The current volatility for AT&T Inc. 5.35% GLB NTS 66 (TBB) is 1.87%, while AT&T Inc. (T) has a volatility of 10.04%. 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	1.87%	10.04%	-8.17%
Volatility (6M) Calculated over the trailing 6-month period	5.05%	19.94%	-14.89%
Volatility (1Y) Calculated over the trailing 1-year period	8.34%	23.65%	-15.31%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.14%	24.40%	-13.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.91%	23.91%	-13.00%

Dividends

TBB vs. T - Dividend Comparison

TBB's dividend yield for the trailing twelve months is around 6.48%, more than T's 5.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
T AT&T Inc.	5.05%	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	6.48%	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 -0.13, 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 (10.04%) compared to TBB (1.87%). 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 (-0.53 vs -0.62), 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.