USDT-USD vs. ^GSPC

Last updated Jun 6, 2026

USDT-USD (Tether) is a cryptocurrency, while ^GSPC (S&P 500 Index) is an index. At a 0.19 correlation, their price movements are largely independent.

Performance

USDT-USD vs. ^GSPC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Tether (USDT-USD) and S&P 500 Index (^GSPC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, USDT-USD achieves a 0.09% return, which is significantly lower than ^GSPC's 7.86% return.

USDT-USD

• 1D: 0.06%
• 1M: -0.04%
• YTD: 0.09%
• 6M: -0.09%
• 1Y: -0.10%
• 3Y*: -0.03%
• 5Y*: -0.02%
• 10Y*: —

^GSPC

• 1D: -2.64%
• 1M: 0.25%
• YTD: 7.86%
• 6M: 7.47%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

USDT-USD vs. ^GSPC - Yearly Performance Comparison

	2026 (YTD)	2025
USDT-USD Tether	0.09%	-0.21%
^GSPC S&P 500 Index	7.86%	14.08%

Correlation

The correlation between USDT-USD and ^GSPC is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Jun 7, 2025	0.19

Return for Risk

USDT-USD vs. ^GSPC — Risk / Return Rank

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

USDT-USD

USDT-USD Risk / Return Rank: 75
USDT-USD Sharpe Ratio Rank: 79
USDT-USD Sortino Ratio Rank: 68
USDT-USD Omega Ratio Rank: 69
USDT-USD Calmar Ratio Rank: 81
USDT-USD Martin Ratio Rank: 79

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.

USDT-USD vs. ^GSPC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Tether (USDT-USD) and S&P 500 Index (^GSPC). 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.

	USDT-USD	^GSPC	Difference
Sharpe ratio: Return per unit of total volatility	-0.20	—	—
Sortino ratio: Return per unit of downside risk	-0.31	—	—
Omega ratio: Gain probability vs. loss probability	0.97	—	—
Calmar ratio: Return relative to maximum drawdown	-0.25	—	—
Martin ratio: Return relative to average drawdown	-0.55	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	USDT-USD	^GSPC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.20	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.03	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.00	1.91	-1.91

Drawdowns

USDT-USD vs. ^GSPC - Drawdown Comparison

The maximum USDT-USD drawdown since its inception was -10.32%, which is greater than ^GSPC's maximum drawdown of -9.10%. Use the drawdown chart below to compare losses from any high point for USDT-USD and ^GSPC.

Drawdown Indicators

	USDT-USD	^GSPC	Difference
Max Drawdown Largest peak-to-trough decline	-10.32%	-9.10%	-1.22%
Max Drawdown (1Y) Largest decline over 1 year	-0.39%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-0.42%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-0.99%	—	—
Current Drawdown Current decline from peak	-7.27%	-2.97%	-4.30%
Average Drawdown Average peak-to-trough decline	-6.93%	-1.13%	-5.80%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.21%	—	—

Volatility

Volatility by Period

	USDT-USD	^GSPC	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.12%	—	—
Volatility (6M) Calculated over the trailing 6-month period	0.35%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	0.40%	12.19%	-11.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.55%	12.19%	-11.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.78%	12.19%	-5.41%

Frequently Asked Questions

Can I hold both USDT-USD and ^GSPC in my portfolio?

USDT-USD and ^GSPC have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.