Mammoth Energy Services, Inc. — Earnings Quality Grade F
TUSK · Industrials
Major red flags
Screening Summary
Management Signals
Financial Trends
Revenue & Net Income ($B)
Margins (%)
18-Point Screening
Revenue Quality
DSO 238 days, change -87 days YoY
AR growth -28.9% vs revenue growth -2.9%
Revenue -2.9%, CFFO -110.3%. Cash follows revenue
Expense Quality
Inventory -40.4% vs COGS 0.1%. Normal
CapEx growth 5711.5% is >2x revenue growth -2.9%
SG&A/Gross Profit = 1132.0%, exceeds 70%
Gross margin 3.9%, change -2.8pp. Stable
Cash Flow Quality
CFFO < Net Income for 3 consecutive years
Small-cap context: Small-cap CFFO/NI often diverges from working-capital swings, not necessarily manipulation.
FCF is negative ($-0.1B)
Accruals ratio = 6.9%. Elevated
Cash $0.1B covers debt $0.0B
Balance Sheet Health
No goodwill. Clean balance sheet
Debt/EBITDA = -0.2x. Healthy
Other assets -60.7% vs revenue -2.9%. Normal
No write-off data
Acquisition Risk
FCF after acquisitions positive
Goodwill+Intangibles change -100% YoY. Normal
Manipulation Score
M-Score = -1.95 (grey zone)
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Beneish M-Score
Altman Z-Score
Generated from public financial data using forensic accounting frameworks. Not investment advice. Data: Yahoo Finance · 2026-04-25