The Weighing Machine

Historical Returns Database

Quest Diagnostics Incorporated (DGX)
DGX vs SPY vs QQQ - Year to Date
Year-to-date (December 31, 2025 to February 24, 2026), DGX returned 21.30% versus 0.80% for the S&P 500 (SPY) and -1.05% for Nasdaq 100 (QQQ).
Ticker Company Name Total Returns $1 turns into Annualized Returns Annualized Volatility Sharpe Ratio
DGX Quest Diagnostics Incorporated 21.30% $1.21 260.26% 30.66% 8.49
SPY SPDR S&P 500 ETF Trust 0.80% $1.01 5.40% 11.88% 0.45
QQQ Invesco QQQ Trust, Series 1 -1.05% $0.99 -6.75% 16.00% -0.42
DGX vs SPY vs QQQ - Past 12 Months
In the past 12 months (February 24, 2025 to February 24, 2026), DGX returned 22.62% versus 16.44% for the S&P 500 (SPY) and 17.52% for Nasdaq 100 (QQQ).
Ticker Company Name Total Returns $1 turns into Annualized Returns Annualized Volatility Sharpe Ratio
DGX Quest Diagnostics Incorporated 22.62% $1.23 22.62% 24.03% 0.94
SPY SPDR S&P 500 ETF Trust 16.44% $1.16 16.44% 19.39% 0.85
QQQ Invesco QQQ Trust, Series 1 17.52% $1.18 17.52% 23.35% 0.75
DGX vs SPY vs QQQ - Past 5 Years
In the past 5 years (February 25, 2021 to February 24, 2026), DGX returned 101.64% versus 92.58% for the S&P 500 (SPY) and 100.23% for Nasdaq 100 (QQQ). $1 invested in DGX in 2021 became $2.02 in 2026.
Ticker Company Name Total Returns $1 turns into Annualized Returns Annualized Volatility Sharpe Ratio
DGX Quest Diagnostics Incorporated 101.64% $2.02 15.06% 21.77% 0.69
SPY SPDR S&P 500 ETF Trust 92.58% $1.93 14.00% 17.03% 0.82
QQQ Invesco QQQ Trust, Series 1 100.23% $2.00 14.90% 22.54% 0.66
DGX vs SPY vs QQQ - Past 10 Years
In the past 10 years (February 29, 2016 to February 24, 2026), DGX had an annualized return of 14.37% versus 15.41% for the S&P 500 (SPY) and 20.38% for Nasdaq 100 (QQQ). $1 invested in DGX in 2016 became $3.83 in 2026.
Ticker Company Name Total Returns $1 turns into Annualized Returns Annualized Volatility Sharpe Ratio
DGX Quest Diagnostics Incorporated 282.79% $3.83 14.37% 23.69% 0.61
SPY SPDR S&P 500 ETF Trust 318.96% $4.19 15.41% 17.88% 0.86
QQQ Invesco QQQ Trust, Series 1 538.45% $6.38 20.38% 22.20% 0.92
DGX vs SPY vs QQQ - Since April 2006
Since April 2006 (April 10, 2006 to February 24, 2026) DGX had an annualized return of 9.18% versus 10.76% for the S&P 500 (SPY) and 15.23% for Nasdaq 100 (QQQ). $1 invested in DGX in 2006 became $5.74 in 2026.
Ticker Company Name Total Returns $1 turns into Annualized Returns Annualized Volatility Sharpe Ratio
DGX Quest Diagnostics Incorporated 474.08% $5.74 9.18% 24.09% 0.38
SPY SPDR S&P 500 ETF Trust 664.15% $7.64 10.76% 19.44% 0.55
QQQ Invesco QQQ Trust, Series 1 1575.96% $16.76 15.23% 22.02% 0.69

Returns adjusted for splits and dividends.

Period start date is the earliest common trading day in the selected time period across all tickers.