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Quest Diagnostics (DGX, Health Care Services) Stock Valuation & Fair Value Significantly overvalued

Quest Diagnostics (DGX, Health Care Services) trades at a blended P/E of 21.5, about 40% above its historical normal valuation, with a forward growth estimate of 8.5% and a PEG of 2.52. Analysts' one-year estimates have been hit 73% of the time. Priced at its historical normal P/E of 15.4 on the same blended earnings, the 2026-10-02 close of $233.33 corresponds to about $166 a share. This is a valuation reference, not a price target.

DATA AS OF 2026-10-05
Blended P/E
21.5
Normal P/E
15.4
PEG
2.52
Fwd growth
8.5%
Div yield
1.5%
RSI (14)
45.0
Neutral
Technical context
  • Price $230.81 at the 2026-10-08 close, 2.1% below the 20-day average ($235.85) and 2.5% below the 50-day ($236.71).
  • RSI (14) at 45.0.
  • 52-week range $170.62 to $246.53: the price is 6.4% below the high and 35.3% above the low.

The Street vs SeerForecast

Wall Street's mean price target for DGX is $247.73 across 15 analysts, 7.3% above the current price. The average analyst rating is Buy. Our SeerForecast read of the same stock, formed without analyst targets: significantly overvalued. When the two disagree, start your digging there.

Valuation flags

Verdict history

tickerseer's rating moved from trading above its usual valuation (2026-06-03) to significantly overvalued (2026-10-05).

Blended P/E and rating by weekBlended P/E moved from 19.2 to 21.5 between 2026-06-03 and 2026-10-02, against a normal P/E of 15.4, with 1 rating change over 37 recorded weeks.2026-06-03: P/E 19.2, Trading above its usual valuation, recalculated for the week of 2026-06-032026-06-10: P/E 19.6, Trading above its usual valuation, recalculated for the week of 2026-06-102026-06-12: P/E 19.6, Trading above its usual valuation, recalculated for the week of 2026-06-142026-06-16: P/E 19.6, Trading above its usual valuation, recalculated for the week of 2026-06-162026-06-18: P/E 19.6, Trading above its usual valuation, recalculated for the week of 2026-06-212026-07-02: P/E 21.0, Trading above its usual valuation, recalculated for the week of 2026-07-022026-07-06: P/E 20.9, Trading above its usual valuation, recalculated for the week of 2026-07-062026-07-09: P/E 20.9, Trading above its usual valuation, recalculated for the week of 2026-07-092026-07-10: P/E 20.1, Trading above its usual valuation, recalculated for the week of 2026-07-122026-07-13: P/E 20.1, Trading above its usual valuation, recalculated for the week of 2026-07-132026-07-14: P/E 20.1, Trading above its usual valuation, recalculated for the week of 2026-07-142026-07-20: P/E 20.4, Trading above its usual valuation, recalculated for the week of 2026-07-202026-07-22: P/E 20.4, Trading above its usual valuation, recalculated for the week of 2026-07-222026-07-24: P/E 21.5, Significantly overvalued, recalculated for the week of 2026-07-252026-07-27: P/E 21.5, Significantly overvalued, recalculated for the week of 2026-07-272026-07-31: P/E 22.1, Significantly overvalued, recalculated for the week of 2026-07-312026-07-31: P/E 22.0, Significantly overvalued, recorded live 2026-08-032026-08-07: P/E 22.4, Significantly overvalued, recalculated for the week of 2026-08-072026-08-07: P/E 22.4, Significantly overvalued, recorded live 2026-08-102026-08-14: P/E 22.1, Significantly overvalued, recalculated for the week of 2026-08-142026-08-14: P/E 22.0, Significantly overvalued, recorded live 2026-08-172026-08-21: P/E 22.6, Significantly overvalued, recalculated for the week of 2026-08-212026-08-21: P/E 22.9, Significantly overvalued, recorded live 2026-08-242026-08-27: P/E 22.9, Significantly overvalued, recalculated for the week of 2026-08-272026-08-28: P/E 22.9, Significantly overvalued, recalculated for the week of 2026-08-282026-08-28: P/E 22.7, Significantly overvalued, recalculated for the week of 2026-08-302026-08-28: P/E 22.7, Significantly overvalued, recorded live 2026-08-312026-09-04: P/E 22.1, Significantly overvalued, recalculated for the week of 2026-09-052026-09-04: P/E 22.1, Significantly overvalued, recorded live 2026-09-072026-09-11: P/E 21.9, Significantly overvalued, recalculated for the week of 2026-09-122026-09-11: P/E 21.9, Significantly overvalued, recorded live 2026-09-142026-09-18: P/E 22.9, Significantly overvalued, recalculated for the week of 2026-09-192026-09-18: P/E 22.9, Significantly overvalued, recorded live 2026-09-212026-09-25: P/E 21.9, Significantly overvalued, recalculated for the week of 2026-09-262026-09-25: P/E 21.9, Significantly overvalued, recorded live 2026-09-282026-10-02: P/E 21.5, Significantly overvalued, recalculated for the week of 2026-10-032026-10-02: P/E 21.5, Significantly overvalued, recorded live 2026-10-0516.018.020.022.0Jun 3Jul 3Aug 2Sep 2Oct 2Normal P/E 15.4
Trading above its usual valuationSignificantly overvaluedLarger dot: a stronger reading

Not every point was recorded live. Points marked recalculated apply today's valuation rules to the metrics tickerseer archived that week.

Selected weeks: the first, the latest, every week the rating moved, and the cheapest and dearest.

WeekBlended P/EPremium to normal P/ERating
2026-06-03P/E 19.2+25%Trading above its usual valuation (recalculated)
2026-07-25P/E 21.5+40%Significantly overvalued (recalculated)
2026-08-24P/E 22.9+49%Significantly overvalued
2026-10-05P/E 21.5+40%Significantly overvalued ← now
Show all 37 weeks
WeekBlended P/EPremium to normal P/ERating
2026-06-03P/E 19.2+25%Trading above its usual valuation (recalculated)
2026-06-10P/E 19.6+27%Trading above its usual valuation (recalculated)
2026-06-14P/E 19.6+27%Trading above its usual valuation (recalculated)
2026-06-16P/E 19.6+27%Trading above its usual valuation (recalculated)
2026-06-21P/E 19.6+27%Trading above its usual valuation (recalculated)
2026-07-02P/E 21.0+36%Trading above its usual valuation (recalculated)
2026-07-06P/E 20.9+36%Trading above its usual valuation (recalculated)
2026-07-09P/E 20.9+36%Trading above its usual valuation (recalculated)
2026-07-12P/E 20.1+31%Trading above its usual valuation (recalculated)
2026-07-13P/E 20.1+31%Trading above its usual valuation (recalculated)
2026-07-14P/E 20.1+31%Trading above its usual valuation (recalculated)
2026-07-20P/E 20.4+33%Trading above its usual valuation (recalculated)
2026-07-22P/E 20.4+33%Trading above its usual valuation (recalculated)
2026-07-25P/E 21.5+40%Significantly overvalued (recalculated)
2026-07-27P/E 21.5+40%Significantly overvalued (recalculated)
2026-07-31P/E 22.1+44%Significantly overvalued (recalculated)
2026-08-03P/E 22.0+43%Significantly overvalued
2026-08-07P/E 22.4+46%Significantly overvalued (recalculated)
2026-08-10P/E 22.4+46%Significantly overvalued
2026-08-14P/E 22.1+44%Significantly overvalued (recalculated)
2026-08-17P/E 22.0+43%Significantly overvalued
2026-08-21P/E 22.6+47%Significantly overvalued (recalculated)
2026-08-24P/E 22.9+49%Significantly overvalued
2026-08-27P/E 22.9+49%Significantly overvalued (recalculated)
2026-08-28P/E 22.9+49%Significantly overvalued (recalculated)
2026-08-30P/E 22.7+47%Significantly overvalued (recalculated)
2026-08-31P/E 22.7+47%Significantly overvalued
2026-09-05P/E 22.1+44%Significantly overvalued (recalculated)
2026-09-07P/E 22.1+44%Significantly overvalued
2026-09-12P/E 21.9+42%Significantly overvalued (recalculated)
2026-09-14P/E 21.9+42%Significantly overvalued
2026-09-19P/E 22.9+49%Significantly overvalued (recalculated)
2026-09-21P/E 22.9+49%Significantly overvalued
2026-09-26P/E 21.9+42%Significantly overvalued (recalculated)
2026-09-28P/E 21.9+42%Significantly overvalued
2026-10-03P/E 21.5+40%Significantly overvalued (recalculated)
2026-10-05P/E 21.5+40%Significantly overvalued ← now

Frequently asked questions

Is Quest Diagnostics stock overvalued?

At a blended P/E of 21.5 versus its historical normal P/E of 15.4, Quest Diagnostics trades about 40% above its typical valuation, with a PEG of 2.52 on 8.5% forward growth. tickerseer currently rates it significantly overvalued.

What is Quest Diagnostics's fair value and PEG?

Quest Diagnostics trades at a blended P/E of 21.5 against a historical normal P/E of 15.4, a PEG of 2.52, and a forward growth estimate of 8.5%. Priced at its historical normal P/E of 15.4 on the same blended earnings, the 2026-10-02 close of $233.33 corresponds to about $166 a share. This is a valuation reference, not a price target.

Has tickerseer's rating of Quest Diagnostics changed?

tickerseer's rating moved from trading above its usual valuation (2026-06-03) to significantly overvalued (2026-10-05).

What is the analyst price target for Quest Diagnostics?

The mean Wall Street price target for Quest Diagnostics is $247.73 across 15 analysts, 7.3% above the current price. tickerseer's SeerForecast verdict is formed independently of analyst targets.

Industry: Health Care Services. Create a free account to see the full analysis: the SeerAI score, its five quality sub-scores, valuation history, and the AI research note. Options setups and metric history are part of the paid plans.

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