CoinDesk DeFi Select Index vs Tether

Tether (USDT) is 6676111.6× the size of CoinDesk DeFi Select Index (DFX) by market capitalisation. Over the past 30 days, USDT is ahead by 20.9 percentage points (DFX -21.0% against USDT -0.0%). Their daily returns move barely together (correlation 0.30 across 24 shared trading days). DFX has been the more volatile of the two, at 70% annualised against USDT's 1%.

Correlation: 0.30
Size ratio: 1 : 6676111.6
Ahead over 30 days: USDT

CoinDesk DeFi Select IndexDFX

$1.1500

24h: +7.42%
Market cap: $26,590
Volume 24h: $7,632
Volatility (ann.): 70%

TetherUSDT

$0.998974

24h: -0.04%
Market cap: $177.52B
Volume 24h: $66.46B
Volatility (ann.): 1%

DFX 0.0%Share of the two combined market caps100.0% USDT

Performance

DFXUSDT

7 days-2.59%+0.03%USDT
30 days-20.98%-0.04%USDT

Correlation

0.30over 24 shared trading days

−1 opposite0 unrelated+1 in step

7d: insufficient data30d: insufficient data90d: insufficient data1y: insufficient data

Measured on daily returns rather than on prices. Two assets that both simply trend upward score near 1.0 on raw prices whether or not they move together, so returns are what answer the question people mean by correlation.

Risk & extremes

Metric	DFX	USDT
Max drawdown (400d)	-25.0%	-0.2%
Risk-adjusted return (90d)	-0.29	0.03

Relative strength over 90 days: USDT outperformed DFX by 9.6% — measured on the DFX/USDT ratio, so it holds regardless of market direction.

CoinDesk DeFi Select Index →Tether →