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Schlumberger SLB

equity

Price History

The shaded fan is where this price has historically travelled over the months after a close like today’s. It is not a forecast: it has no view on direction, only on distance.

$28.68$41.55$54.43$67.3
2021-102026-09 · $51.12

Over 3 months from Sep 2026, roughly two-thirds of past moves landed between $43.25 and $60.42; nine in ten between $38.83 and $67.3.

Tested against this asset’s own history: across 486 past 3-month windows, the price actually landed inside the two-thirds band 72% of the time. The gap from 68% is the model’s error — real returns have fatter tails than the maths assumes, so the band gets breached more often than it claims.

Time underwater

How far below its previous all-time high the price sat, each month. 0% means a new high.

-88.6%-59.0%-29.5%0.0%
1985-012026-09 · -56.7%

Worst drawdown: −89%, peaking Jun 2014 and bottoming Mar 2020 — still unrecovered after 147 months.

DCA Backtest

Invested
$50,100
Value today
$104,560
Return
+108.7%
Months invested
501

Scenarios

Inflation — the same contributions merely keeping pace with CPI would be $91,370 today, so the real (inflation-adjusted) return is +14.4%.

Lump sum instead — $50,100 all at once in Jan 1985: $256,111 (+411.2%) — lump sum came out ahead.

Worst timing — same monthly amount started at the all-time high (Jun 2014): $17,438 on $14,800 invested (+17.8%).

⚠ Price returns only — dividends are not included. This understates the true return of dividend-paying shares, and any comparison against crypto (which pays no dividends) is biased against equities by roughly the dividend yield, compounded.

If this saved you a spreadsheet — buy me a coffee.

Every start month at once

Each cell is the return-to-date of £/$/€100-a-month DCA started that month. Click a cell to load it in the backtest above. The ringed cell is the all-time-high start — the worst timing scenario.

JFMAMJJASOND
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Legend:−50%−20%0%+50%+200%+1000%worst timing (ATH)Selected 1985-01: +108.7%

About Schlumberger

SLB, formerly known as Schlumberger, is a multinational oilfield services company. Founded in France in 1926, the company is now incorporated as SLB N.V. in Willemstad, Curaçao, with principal executive offices in four cities: Paris, France; Houston, Texas, United States; London, UK; and The Hague, Netherlands. As of 2022, it is both the world's largest offshore drilling company and the world's largest offshore drilling contractor by revenue. (Wikipedia)

It's a listed company categorised under energy and oil & gas equipment & services, with a market cap of about $75.9B.

It rates Medium-High Risk at 2.6/5, meaning real but ordinary risk — the kind most mainstream assets carry, with some factors scoring poorly.

What pushes the score up: market / volatility (4.0/5) and earnings quality (3.0/5).

Scoring well: liquidity at 1.0/5.

Not yet researched: concentration, governance. These are excluded from the score rather than guessed, so the real risk may be higher than what’s shown.

Ratings summarise sourced facts against fixed rules — not investment advice, and no substitute for your own diligence.

Risk Profile

Medium-High Risk(2.6/5)80% rated

How these ratings work

Market / Volatility4.0/5 · weight 20%
  • Annualised volatility (3yr)3/533.4
  • Max drawdown from ATH5/588.6
  • Beta vs S&P 5004/51.3
Liquidity1.0/5 · weight 15%
  • Avg daily $ volume1/5707.9m
  • Float % of shares outstandingnot yet researched
Leverage / Financial2.0/5 · weight 20%
  • Debt / equity2/50.43
  • Interest coverage (EBIT / interest)not yet researched
Earnings Quality3.0/5 · weight 15%
  • 3yr EPS volatility3/522.1
Concentrationunrated · weight 10%
  • Largest customer, % of revenuenot yet researched
  • Geographic revenue concentrationnot yet researched
Governanceunrated · weight 10%
  • Board independence %not yet researched
  • Share structurenot yet researched
  • Litigation / audit historynot yet researched
Sector / Regulatory3.0/5 · weight 10%
  • Sector regulatory exposure3/5elevated

Linked Assets

Same sector, or return-correlated — worth knowing what else might move if this one does.