SPG vs WY: how the two businesses compare

  • Similar size: WY and SPG each brought in about $6.9B of yearly revenue.
  • More cash from each sale: SPG turns 65 cents of each sales dollar into operating cash flow, against 8 cents at WY.

From each company's latest annual SEC filing. Fiscal years can end on different dates.

Weyerhaeuser (WY) and Simon Property (SPG) reported similar revenue: $6.9B (fiscal year ended Dec 2025) versus $6.4B (fiscal year ended Dec 2025). Both file with the SEC under the same industry code, SIC 6798 (Real Estate Investment Trusts).

Figures come from each company's own SEC filings. This page compares the businesses; it is not a price target or a verdict.

Sector
Real Estate
SEC industry
Real Estate Investment Trusts
Same classification
Fiscal year ends
December 31
Same calendar
Reviewed
Feb 25, 2026

SPG vs WY: quick comparison

Company factSPGWY
CompanySimon Property Group, Inc.Weyerhaeuser Company
ExchangeNYSENYSE
HeadquartersIndianapolis, Indiana—
Founded1993—
SEC industryReal Estate Investment TrustsReal Estate Investment Trusts
Fiscal year-endDecember 31December 31
Latest annual filing10-K · 2026-02-2510-K · 2026-02-13

SPG vs WY: audited financials

  • Scale: revenue is roughly in line ($6.9B for WY versus $6.4B for SPG).
  • Cash flow: operating cash flow is left out of this reading because lending, deposit, and trading balances run through it at banks, brokers, and insurers, so it does not measure earnings quality the way it does for an operating company.
  • Periods: both fiscal years end on 2025-12-31, so these annual figures cover the same months.

SPG: FY ending 2025-12-31 · WY: FY ending 2025-12-31. Figures as tagged in each issuer's SEC XBRL filing; fiscal calendars may not align.

Where SPG and WY overlap, and where they don't

Overlap

  • Same SEC industry: both report under SIC 6798, Real Estate Investment Trusts.
  • Shared research themes: Rates & central banks and Economic trends.
  • Same fiscal calendar: both fiscal years end December 31.

Differences

No differences in classification, themes, or calendar are recorded in the data; the differences sit in the businesses described below.

Overlap is drawn from SEC classifications and Yield Theory research themes. It is not evidence that the companies sell to the same customers or compete product for product.

Simon Property Group, Inc. (SPG)

Simon Property Group is the largest US owner of shopping malls and premium outlet centers. It has focused its portfolio on top-tier properties and mixed-use redevelopment to counter pressure on traditional retail.

Weyerhaeuser Company (WY)

Weyerhaeuser owns timberlands and manufactures wood products used in construction.

What moves each company

Company-specific drivers maintained by Yield Theory. Use them to decide which filing deserves deeper work; they are not predictions.

What moves SPG

We have not yet published a company-specific driver list for SPG. The primary source is Item 1 (Business) and Item 1A (Risk Factors) of its 10-K filed 2026-02-25.

What moves WY

We have not yet published a company-specific driver list for WY. The primary source is Item 1 (Business) and Item 1A (Risk Factors) of its 10-K filed 2026-02-13.

The investment question

You now know how SPG and WY are classified, when their fiscal years end, and where their exposures overlap. Those are the facts. The investment question is what each share price already assumes about their exposure to rates & central banks and economic trends, and which evidence in the next filings would prove that assumption wrong.

Members-only research

What members are reading this month

The thesis, the numbers behind it, and what would break it. Full access is $39 a month.

Read the full research

SEC filing comparison and disclosure evidence

Start with primary filings because fiscal calendars and accounting presentation can make superficially similar quarters incomparable. Both fiscal years end December 31, so annual reports line up, but check segment definitions before comparing growth or margins.

The current verified House and Senate snapshot contains 7 matched transaction rows for SPG and 10 matched transaction rows for WY. These delayed, range-based disclosures can identify a filing to inspect; they do not establish motive, conviction, or a real-time trading signal.

What this comparison cannot tell you

This page does not contain licensed live prices, a valuation model, earnings estimates, portfolio constraints, or a forecast of future returns. SEC classifications can be broad, company descriptions can lag strategic change, and the latest annual filing may predate a material acquisition or divestiture. Read subsequent quarterly and current reports before making a decision.

A stronger business is not automatically the better stock. Starting valuation, expectations, capital structure, cyclicality, dilution, and the probability of each thesis determine the investment outcome. Use this comparison to frame the work, then verify the numbers in the linked filings and current company disclosures.

SPG vs WY FAQs

Are SPG and WY direct competitors?

Simon Property and Weyerhaeuser share the SEC industry classification “Real Estate Investment Trusts.” That makes the operating comparison relevant, but it does not prove that every product, customer, or revenue stream competes directly.

Is SPG or WY the bigger company by revenue?

Weyerhaeuser (WY) and Simon Property (SPG) reported similar revenue: $6.9B (fiscal year ended Dec 2025) versus $6.4B (fiscal year ended Dec 2025). Both file with the SEC under the same industry code, SIC 6798 (Real Estate Investment Trusts). Each figure is the annual amount tagged in the company's own SEC XBRL filing; market value depends on live prices, which this page does not publish.

Which is better, SPG or WY?

There is no context-free winner. Compare the operating exposures, filing evidence, valuation, balance sheet, and risks against the specific thesis you are testing. This page deliberately does not turn a static profile into a buy or sell recommendation.

Does this SPG vs WY comparison include live prices?

No. Yield Theory does not republish unlicensed real-time market data. The financial figures on this page are the audited annual numbers Simon Property Group, Inc. and Weyerhaeuser Company tagged in their SEC XBRL filings. Use a regulated broker or licensed quote provider for current prices and valuation multiples.

Where does the company information come from?

Company classifications, fiscal year-ends, and filing links come from the SEC EDGAR submissions API snapshot refreshed 2026-11-09. Business summaries and research themes are maintained by Yield Theory.

Data snapshot: SEC EDGAR submissions API, refreshed 2026-11-09. Independent educational research; not investment advice.

Which business differences matter to the investment thesis?

SPG vs WY compares reported results. The reports below show how we connect operating evidence to an investment thesis, its assumptions, catalysts, and risks. $39/month or $249/year.

$39/mo or $249/yr · cancel future renewals anytime · sources included