FIX

Comfort Systems USA, Inc.

HALAL — METHODS DIFFERstock

Is FIX Halal?

General-purpose mechanical and electrical building-services contractor with low debt and disclosed interest income below the examined income benchmark; methodology results differ on the receivables ratio.

What You Should Know

Comfort Systems' March 31, 2026 Form 10-Q reports $6,938.346 million of total assets, $39.079 million of financial debt, $1,050.164 million of cash, $64.763 million of Treasury bills, $3,051.225 million of receivables, $2,865.332 million of quarterly revenue and $8.512 million of interest income. ZakatInvest's current contextual calculations are debt/assets 0.56%, liquidity 16.07%, receivables plus cash/assets 59.11% and interest income/revenue 0.30%. Mechanical and electrical contracting remains generally permissible at the activity level, but the stricter MSCI receivables test fails and end-customer revenue is not separately disclosed. This is a current ZakatInvest calculation, not an index-membership claim.

⚠️ Concerns

  • Receivables plus cash/assets is 59.11%, above the stricter MSCI total-assets receivables limit but within the broader contextual range used by other methods
  • Disclosed interest income is 0.30% of quarterly revenue; purification remains methodology- and scholar-specific
  • Projects serve mixed end markets including data centers, semiconductors, healthcare, education, government and offices; the filing does not quantify downstream use
  • Construction-contract estimation, customer concentration, labor, bonding, safety and execution require continuing review
  • Feyen Zylstra and Meisner acquisitions change the operating perimeter and should be reflected in future screens
  • Market-cap denominator methods are not calculated without a licensed historical market-cap series

Current quantitative Sharia screen

Based on 10-Q figures for the period ended 2026-03-31; calculated 2026-07-13.

USD · millions
Interest-bearing debt / assets
0.56%Within limit
Below 33.333% under FTSE Yasaar

39.079 / 6,938.346

Cash + interest-bearing securities / assets
16.07%Within limit
Below 33.333% under FTSE Yasaar

1,114.927 / 6,938.346

Receivables + cash / assets
59.11%Above limit
Below 50% under FTSE Yasaar

4,101.389 / 6,938.346

Non-compliant income / revenue
0.30%Within limit
No more than 5% under FTSE Yasaar

8.512 / 2,865.332

FTSE Yasaar
v4.6, February 2026
Financial
Fails
Overall
Fails

Debt is 0.56%, liquidity is 16.07%, receivables plus cash/assets is 59.11% and disclosed interest income/revenue is 0.30%; the receivables-plus-cash result exceeds the examined FTSE limit. End-customer revenue classification remains unavailable.

MSCI Islamic (total-assets series)
October 2024 methodology
Financial
Fails
Overall
Fails

Debt, liquidity and interest income pass the examined limits, but receivables plus cash/assets is 59.11%, above the stricter MSCI total-assets receivables limit. This is a calculation against the named method, not an index-membership claim.

Malaysia SAC financial ratios
single 5% activity benchmark adopted November 2025
Financial
Pass
Overall
Incomplete

Debt is 0.56%, liquidity is 16.07% and disclosed interest income/revenue is 0.30%; the examined ratios pass. This is a calculation against the SAC ratios, not an official classification.

Market-cap denominator methods
MSCI M-Series, S&P and Dow Jones methods differ
Financial
Not calculated
Overall
Not calculated

A properly licensed and reproducible historical market-cap series is not stored, so these methods are not estimated from a current spot price.

Business-activity disclosure

Comfort Systems provides general-purpose mechanical and electrical contracting, HVAC, plumbing, piping, controls, off-site construction, monitoring and fire-protection services across commercial, industrial and institutional facilities. These services are generally permissible at the activity level.

Limitation: The filing does not classify revenue by end-customer industry, project financing, facility use, defense exposure or other downstream attributes into a universal prohibited-revenue numerator.

Purification

Disclosed interest income is 0.30% of quarterly revenue. A screened end-customer revenue numerator is not separately disclosed, so this record does not prescribe a fixed purification percentage.

Inputs, assumptions and primary sources
  • Inputs use Comfort Systems' March 31, 2026 Form 10-Q; amounts are USD millions converted from the filing's thousands presentation.
  • Debt uses $0.025 million of current maturities plus $39.054 million of long-term debt. Operating lease liabilities and contingent earn-out obligations are retained as qualitative context rather than silently treated as conventional debt.
  • Interest-bearing securities use $64.763 million of U.S. Treasury bills with maturities greater than 90 days. Cash and cash equivalents of $1,050.164 million are not double-counted as securities.
  • Receivables use billed accounts receivable of $2,805.270 million, unbilled accounts receivable of $137.070 million and other receivables of $108.885 million.
  • Quarterly revenue is $2,865.332 million and disclosed interest income is $8.512 million. The filing does not provide a universal prohibited-revenue numerator for mixed end-customer industries.

This is a reproducible financial screen, not a fatwa. A failed total-assets screen can coexist with a pass under a market-cap methodology. ZakatInvest keeps the qualitative assessment separate so numerical thresholds do not erase material context.

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