Quest Diagnostics Incorporated Stock Price History

DGX Stock  USD 170.85  3.44  2.05%   
If you're considering investing in Quest Stock, it is important to understand the factors that can impact its price. As of today, the current price of Quest Diagnostics stands at 170.85, as last reported on the 4th of August, with the highest price reaching 171.91 and the lowest price hitting 167.96 during the day. Quest Diagnostics maintains Sharpe Ratio (i.e., Efficiency) of -0.0205, which implies the firm had a -0.0205 % return per unit of risk over the last 3 months. Quest Diagnostics exposes twenty-four different technical indicators, which can help you to evaluate volatility embedded in its price movement. Please check Quest Diagnostics' Risk Adjusted Performance of (0.01), variance of 2.23, and Coefficient Of Variation of (4,876) to confirm the risk estimate we provide.
Quest Stock price history is provided at the adjusted basis, taking into account all of the recent filings.

Sharpe Ratio = -0.0205

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Estimated Market Risk

 1.49
  actual daily
13
87% of assets are more volatile

Expected Return

 -0.03
  actual daily
0
Most of other assets have higher returns

Risk-Adjusted Return

 -0.02
  actual daily
0
Most of other assets perform better
Based on monthly moving average Quest Diagnostics is not performing at its full potential. However, if added to a well diversified portfolio the total return can be enhanced and market risk can be reduced. You can increase risk-adjusted return of Quest Diagnostics by adding Quest Diagnostics to a well-diversified portfolio.

Quest Diagnostics Stock Price History Chart

There are several ways to analyze Quest Stock price data. The simplest method is using a basic Quest candlestick price chart, which shows Quest Diagnostics price history and the buying and selling dynamics of a specified period. Many traders also use subjective judgment to their trading calls, avoiding the need to trade based on technical analysis.
Highest PriceJune 16, 2025181.25
Lowest PriceJuly 15, 2025166.42

Quest Diagnostics August 4, 2025 Stock Price Synopsis

Various analyses of Quest Diagnostics' daily price changes, such as its Balance Of Power or Price Action, are crucial when deciding whether to buy, hold, or sell Quest Stock. It can be used to describe the percentage change in the price of Quest Diagnostics from one trading day to the next and could be a valuable metric for traders and investors to gauge the volatility and momentum of Quest Stock.
Quest Diagnostics Price Rate Of Daily Change 1.02 
Quest Diagnostics Price Daily Balance Of Power 0.87 
Quest Diagnostics Price Action Indicator 2.63 

Quest Diagnostics August 4, 2025 Stock Price Analysis

When benchmark price declines in a down market, there may be an uptick in Quest Stock price where buyers come in believing the asset is cheap or selling overdone. The opposite is true when the market is bullish. You can use Quest Diagnostics intraday prices and daily technical indicators to check the level of noise trading in Quest Stock and then apply it to test your longer-term investment strategies against Quest.

Quest Stock Price History Data

The price series of Quest Diagnostics for the period between Tue, May 6, 2025 and Mon, Aug 4, 2025 has a statistical range of 14.83 with a coefficient of variation of 2.31. Under current investment horizon, the daily prices are spread out with arithmetic mean of 173.54. The median price for the last 90 days is 173.62. The company completed 2:1 stock split on 21st of June 2005. Quest Diagnostics completed dividends distribution on 2025-07-07.
OpenHighLowCloseVolume
08/04/2025
 168.24  171.91  167.96  170.85 
08/01/2025
 168.24  171.91  167.96  170.85  1,421,070 
07/31/2025
 166.76  170.14  166.76  167.41  941,435 
07/30/2025
 167.40  169.75  167.40  168.73  1,093,976 
07/29/2025
 168.72  169.62  167.03  167.93  810,648 
07/28/2025
 167.59  168.76  165.78  167.85  1,086,583 
07/25/2025
 172.60  173.04  167.19  168.55  1,877,511 
07/24/2025
 172.53  175.76  170.47  171.90  1,793,273 
07/23/2025
 179.63  180.89  168.32  170.48  2,701,006 
07/22/2025
 170.63  178.86  170.03  178.24  2,697,790 
07/21/2025
 167.01  167.42  165.30  166.45  1,999,552 
07/18/2025
 168.57  170.29  165.88  166.91  1,557,269 
07/17/2025
 166.08  168.71  165.19  168.18  1,358,700 
07/16/2025
 166.29  167.76  165.45  167.03  1,148,044 
07/15/2025
 168.37  168.89  164.65  166.42  1,177,671 
07/14/2025
 168.25  169.28  166.88  168.37  1,274,578 
07/11/2025
 170.52  170.70  167.17  168.09  1,335,598 
07/10/2025
 171.86  174.47  171.36  171.45  914,100 
07/09/2025
 173.56  173.78  171.30  173.62  870,958 
07/08/2025
 173.21  174.48  172.13  172.50  1,080,500 
07/07/2025
 175.96  176.11  173.08  173.97  838,348 
07/03/2025
 175.34  176.12  174.91  176.12  436,500 
07/02/2025
 178.31  178.31  173.85  175.80  895,600 
07/01/2025
 178.55  180.33  177.26  178.52  850,300 
06/30/2025
 177.06  178.95  176.41  178.82  819,300 
06/27/2025
 176.35  179.43  175.76  177.03  1,205,900 
06/26/2025
 178.72  179.28  174.85  176.26  1,040,200 
06/25/2025
 178.51  178.51  176.75  177.84  747,500 
06/24/2025
 178.94  179.22  176.52  179.09  713,600 
06/23/2025
 178.57  179.50  177.71  178.91  1,201,900 
06/20/2025
 179.19  180.18  177.94  178.62  1,016,700 
06/18/2025
 177.97  180.01  176.96  178.97  618,900 
06/17/2025
 180.22  181.44  177.57  178.14  871,900 
06/16/2025
 180.11  181.56  178.40  181.25  989,000 
06/13/2025
 177.20  181.09  176.91  179.40  1,028,500 
06/12/2025
 176.33  179.04  175.48  178.23  743,200 
06/11/2025
 176.41  177.55  175.43  176.18  583,200 
06/10/2025
 175.68  177.32  175.20  176.64  763,100 
06/09/2025
 173.28  175.70  171.70  175.10  496,200 
06/06/2025
 173.42  174.71  173.38  173.55  434,200 
06/05/2025
 173.19  173.91  172.59  172.86  602,800 
06/04/2025
 173.03  174.48  172.07  173.02  743,000 
06/03/2025
 172.40  173.42  171.24  172.81  769,300 
06/02/2025
 171.73  174.42  170.28  173.61  876,200 
05/30/2025
 171.44  172.64  170.59  172.56  1,612,700 
05/29/2025
 170.49  171.80  169.82  171.22  783,200 
05/28/2025
 172.13  172.88  170.23  170.61  746,500 
05/27/2025
 170.74  173.16  170.74  172.89  1,048,400 
05/23/2025
 169.28  170.63  168.29  170.46  1,025,600 
05/22/2025
 169.17  170.35  167.70  168.85  1,036,300 
05/21/2025
 176.32  176.80  168.91  169.71  2,124,600 
05/20/2025
 176.97  179.18  176.82  177.43  994,500 
05/19/2025
 176.48  177.64  175.99  177.31  773,000 
05/16/2025
 175.91  177.42  174.89  177.17  2,133,900 
05/15/2025
 171.38  176.19  171.22  175.61  1,616,000 
05/14/2025
 173.39  173.71  170.60  171.70  1,333,800 
05/13/2025
 174.52  176.17  173.41  173.70  1,169,800 
05/12/2025
 174.93  177.13  171.46  175.10  1,334,200 
05/09/2025
 174.92  177.22  174.33  176.16  1,310,000 
05/08/2025
 175.50  177.93  175.01  175.10  1,504,700 
05/07/2025
 175.05  176.93  174.46  175.77  1,103,700 

About Quest Diagnostics Stock history

Quest Diagnostics investors dedicate a lot of time and effort to gaining insight into how a market's past behavior relates to its future. Access to timely market data for Quest is vital when making an investment decision, and regardless of whether you use fundamental or technical analysis, your return on investment in Quest Diagnostics will depend on recognizing future opportunities and eliminating past mistakes. Historical data analysis is the study of market behavior over a given time. Recorded market-related data such as price, volatility, and volume can be quantified and studied over a defined period. Through a detailed examination of a market's past behavior, traders and investors can gain perspective on the inner workings of that market. The information obtained throughout analyzing Quest Diagnostics stock prices may prove useful in developing a viable investing in Quest Diagnostics
Quest Diagnostics Incorporated provides diagnostic testing, information, and services in the United States and internationally. Quest Diagnostics Incorporated was founded in 1967 and is headquartered in Secaucus, New Jersey. Quest Diagnostics operates under Diagnostics Research classification in the United States and is traded on New York Stock Exchange. It employs 50000 people.

Quest Diagnostics Stock Technical Analysis

Quest Diagnostics technical stock analysis exercises models and trading practices based on price and volume transformations, such as the moving averages, relative strength index, regressions, price and return correlations, business cycles, stock market cycles, or different charting patterns.
A focus of Quest Diagnostics technical analysis is to determine if market prices reflect all relevant information impacting that market. A technical analyst looks at the history of Quest Diagnostics trading pattern rather than external drivers such as economic, fundamental, or social events. It is believed that price action tends to repeat itself due to investors' collective, patterned behavior. Hence technical analysis focuses on identifiable price trends and conditions. More Info...

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Quest Diagnostics Technical and Predictive Indicators

Predictive indicators are helping investors to find signals for Quest Diagnostics' price direction in advance. Along with the technical and fundamental analysis of Quest Stock historical price patterns, it is also worthwhile for investors to track various predictive indicators of Quest to make sure they correctly time the market and exploit it's hidden potentials. Even though most predictive indicators are useful for the short-term horizon, it's virtually impossible to predict the unforeseen market. For traders with a short-term horizon, predictive indicators add value when properly applied. Long-term investors, however, may find many predictive indicators less useful.

Additional Tools for Quest Stock Analysis

When running Quest Diagnostics' price analysis, check to measure Quest Diagnostics' market volatility, profitability, liquidity, solvency, efficiency, growth potential, financial leverage, and other vital indicators. We have many different tools that can be utilized to determine how healthy Quest Diagnostics is operating at the current time. Most of Quest Diagnostics' value examination focuses on studying past and present price action to predict the probability of Quest Diagnostics' future price movements. You can analyze the entity against its peers and the financial market as a whole to determine factors that move Quest Diagnostics' price. Additionally, you may evaluate how the addition of Quest Diagnostics to your portfolios can decrease your overall portfolio volatility.