Is Schlumberger or Stak more undervalued?

As of Oct 3, 2026, Schlumberger is at −40.8% to fair value and Stak at −34.5%. Stak is the less overvalued of the two. Model-based estimate, not financial advice.

Which has higher quality, Schlumberger or Stak?

Schlumberger has a quality score of 53/100 and Stak 39/100. Schlumberger leads on quality.

STOCK COMPARISON

Schlumberger vs Stak: Fair Value & Quality

Both stocks run through our valuation models. Here is how Schlumberger (SLB) and Stak (STAK) compare, as of Oct 3, 2026.

As of Oct 3, 2026, Fair Value Calculator sees Stak as the less overvalued of the two: Schlumberger trades at $48.74 versus a fair value of $28.87 (−40.8%), while Stak trades at $1.10 versus $0.72 (−34.5%).

Schlumberger

SLB · USD · Energy

−40.8%

upside to fair value

overvalued

Price$48.74

Fair Value$28.87

Quality53/100

Stak

STAK · USD · Energy

−34.5%

upside to fair value

overvalued

Price$1.10

Fair Value$0.72

Quality39/100

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Head-to-head numbers

Green is the better side of a row, red the weaker one (for valuation multiples: lower = cheaper). Grey rows are for reference only and are not scored.

betterweakerfor reference, not scored

SchlumbergerStak

Valuation

24.0×P/E (TTM)n/a

20.1×P/E ex one-offs (FY2025)n/a

15.1×Forward P/E (FY2027)n/a

19.6×Median P/E at FY-end (6 FY, ex one-offs where documented)n/a

2.03×P/S (TTM)n/a

2.83×P/Bn/a

10.9×EV/EBITDAn/a

1.37×PEGn/a

−40.8%Fair value upside−34.5%

2.4%Dividend yieldn/a

$1.16Dividend per sharen/a

Profitability

12.7%Operating margin11.0%

12.9%Return on equity-42.9%

6.2%Return on assets-7.2%

Growth

5.0%Revenue growth (YoY)13.4%

8.3%Avg. growth/yr (3Y)45.3%

8.6%Avg. growth/yr (5Y)n/a

+13.7%Value creation/yrn/a

Balance & size

9.8×Interest coverage (EBIT/interest)n/a

0.37×Debt / equity0.03×

$74BMarket capn/a

mixedGrowth qualityexpensive

The P/E excluding one-off items is only shown where the special items are documented in the accounts (our own raw data or SEC filings). If one side lacks it, the reported P/E stays scored.

Schlumberger, median P/E at fiscal year-end, 6 fiscal years (2018 to 2025), reported earnings, 5 of the years ex one-offs: 19.6.

Forward P/E: price divided by the analyst consensus for the first fiscal year that has not started yet. The current year carries special items from quarters already reported. Schlumberger: FY 2026 earnings estimate probably distorted by a special item known to analysts (2.5 is not between the FY 2025 actual of 2.93 and the FY 2027 estimate of 3.24).

Even match: 3 to 3 metric wins.

n/a = not meaningfully computable, for example with negative equity.

Quality in detail

The quality score, broken down into the same factor families as on the stock page, 0 to 100 per family.

Schlumbergerof which business quality 55 · market factors 67 Stakof which business quality 39 · market factors 26

ProfitabilityMargins and returns on capital today

Quality GrowthAre margins and returns improving?

CashflowEarnings quality: real cash, not paper profit

Fin. StrengthBalance sheet, leverage, solvency risk

InvestmentDisciplined investing over empire-building

Low VolatilityCalm price path (market factor)

MomentumPrice trend over the last 3–12 months (market factor)

52W MomentumDistance to the 52-week high (market factor)

Net IssuanceShare count: buybacks or dilution?

What the models say

How far the median fair value (base case) per model family sits from the current price, in percent. The amount in the currency of the trading venue is shown underneath.

above the price, more than 15% above close to the price, 85% to 115% of the price below the price, more than 15% below

Model family	SchlumbergerPrice $48.74	StakPrice $1.10
DCF Models	−21.0%below the price$38.51	n/a
Earnings-Based	−55.4%below the price$21.74	n/a
Dividend Discount	−62.5%below the price$18.27	n/a
Multiples	−38.0%below the price$30.24	n/a
Asset-Based	−75.8%below the price$11.79	−70.0%below the price$0.33
Growth DCF	−8.7%close to the price$44.50	n/a
Economic Profit	−43.6%below the price$27.47	n/a
Growth Earnings	−41.1%below the price$28.69	n/a
Minimum	−75.8%below the price$11.79	−70.0%below the price$0.33
Maximum	−8.7%close to the price$44.50	−70.0%below the price$0.33
Median	−42.4%below the price$28.08	−70.0%below the price$0.33
Geometric mean	−47.2%below the price$25.71	−70.0%below the price$0.33

Minimum, maximum, median and geometric mean refer to the family values in this table. Geometric because deviations are ratios: half the price and twice the price average to 100%, not 125%.

Schlumberger: 23 of 26 models see the stock below the current price.

Stak: 1 of 1 models see the stock below the current price.

Scenario ranges

From our cautious bear scenario to the optimistic bull scenario. The white tick is the current price (value above it), the green tick the fair value (value below it): if the price sits left of the fair value, there is room to rise.

Schlumberger

Price $48.74

Fair Value $28.87

Bear $21.32Bull $36.09

Stak

Price $1.10

Fair Value $0.72

Bear $0.48Bull $0.90

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Ranked within their sector

Where each stock sits within its sector peer group. Band = middle 50% of peers, tick = median, dot = this stock.

Schlumberger · Energy

Quality score53 · above median

Fair value upside−40.8% · below median

Stak · Energy

Quality score39 · below median

Fair value upside−34.5% · below median

Bottom line

Schlumberger has the higher quality score (53/100).

Open Stak live analysis →

Schlumberger · Stak

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A model-based valuation snapshot from 26 models. Values change with price and fundamentals; the date shown above applies.