Sin Stocks: What They Are, Why They Matter, and How to Screen Them

The term “sin stocks” is borrowed from secular financial media, which uses it somewhat dismissively to describe shares in industries—alcohol, tobacco, gambling, weapons, pornography—that many investors choose to avoid for ethical reasons. For Christian investors, the dismissive framing misses the point. The question of which companies deserve ownership isn’t a quirky preferences matter; it’s a serious stewardship question rooted in Scripture’s consistent teaching that participation in immoral activity—including financial participation—carries moral weight.

This guide examines sin stocks comprehensively: what qualifies, the biblical basis for each category, the practical mechanics of screening them, the genuinely difficult cases, and the broader debate between divestment and engagement as responses to objectionable corporate behavior.

What Makes a Stock a “Sin Stock”?

The term lacks a single authoritative definition, but in Christian investing contexts, sin stocks generally refers to equity in companies whose core business involves activities that Scripture identifies as harmful, immoral, or incompatible with human dignity and flourishing. The major categories recognized across virtually all Christian fund families include:

• Abortion and abortifacient products
• Pornography and sexually exploitative content
• Gambling and gaming operations
• Tobacco products
• Alcohol (contested across Christian traditions)
• Weapons of mass destruction and certain weapons categories

Some funds extend this list to include cannabis (particularly recreational), payday lending at predatory rates, and companies that aggressively fund or advocate for causes incompatible with Christian ethics.

The category isn’t arbitrary—it reflects centuries of Christian ethical reflection about which commercial activities are incompatible with Christian participation and which generate harms that Christian stewardship should not enable or profit from.

The Biblical Basis for Avoiding Sin Stocks

The core theological argument for sin stock exclusions runs as follows: Scripture teaches that Christians should not participate in, enable, or profit from activities that violate biblical ethics. Stock ownership constitutes a form of participation and participation in these activities—even indirect financial participation—carries moral weight.

Several scriptural threads support this argument:

Ephesians 5:11 instructs believers to “have nothing to do with the fruitless deeds of darkness, but rather expose them.” This isn’t merely about personal behavior; it speaks to participation in and enabling of morally problematic activities at the level of association and support.

Romans 1:32 extends moral responsibility beyond direct participation to those who “approve of those who practice” wrongdoing. A shareholder who profits from a company’s activities—who receives dividends generated by those activities—cannot claim complete moral distance from them.

1 Thessalonians 5:22 calls Christians to “abstain from all appearance of evil.” The Greek word underlying “appearance” (eidos) means visible form or manifestation—suggesting that Christians should avoid not merely evil itself but activities that have the visible form or character of evil in the world.

Proverbs 1:10–15 warns explicitly against joining those who profit from wrongdoing: “My son, if sinful men entice you, do not give in to them… do not go along with them, do not set foot on their paths.”

These passages don’t constitute a direct proof-text for stock market divestment—the modern investment system didn’t exist in biblical times. But they establish a principle that Christian tradition has consistently applied to commercial participation: Christians should be attentive to what they enable and profit from, not merely what they personally do.

The Major Sin Stock Categories: Biblical Basis and Practical Application

Abortion and Abortifacient Products

For most explicitly Christian fund families, abortion-related exclusions are the most carefully defined and most firmly held. The biblical basis is the consistent scriptural teaching that human life is sacred from conception (Psalm 139:13–16; Jeremiah 1:5; Luke 1:41–44) and that the shedding of innocent blood is among the gravest of sins (Proverbs 6:16–17).

Companies screened for abortion involvement include pharmaceutical manufacturers of mifepristone (RU-486) and other abortifacient drugs, healthcare chains operating abortion clinics, and corporations making significant financial donations to abortion providers like Planned Parenthood. The treatment of emergency contraception (Plan B) varies among fund families—some classify it as potentially abortifacient and screen it; others focus only on confirmed abortifacients.

Revenue thresholds matter here. Some funds exclude any company with any material abortion-related revenue; others apply a 5%–10% revenue threshold, recognizing that large diversified healthcare companies may have minor abortion-adjacent exposure without that defining their corporate character. Investors should know which threshold their chosen fund applies.

Pornography

Pornography exclusions reflect biblical teaching on sexual purity (1 Corinthians 6:18–20; Matthew 5:28), the violation of human dignity involved in producing and consuming sexually explicit material, and the documented social harms—addiction, relationship destruction, and trafficking connections—associated with the pornography industry.

Screening is complicated by the diffusion of adult content across entertainment, streaming, and telecommunications. Fund managers typically focus on companies where pornography is a core business driver—adult entertainment studios, dedicated adult streaming platforms—rather than excluding every media company that carries some mature content. Hotels, cable providers, and streaming services may be flagged if adult content generates meaningful revenue.

Gambling

Gambling exclusions reflect concerns about addiction, financial destruction, and the exploitation of vulnerable populations—consistent with biblical principles of care for the poor (Proverbs 22:22) and the concern with wealth gained unjustly (Proverbs 13:11). Gambling’s business model is inherently dependent on addicted or problem gamblers, who generate a disproportionate share of revenue, raising exploitation concerns that Christian ethics cannot easily dismiss.

Screens typically exclude casino operators, online gambling platforms, lottery contractors, and gaming companies where gambling operations represent core business activity. Some funds also screen gambling equipment manufacturers and software providers; others focus only on operators. The rapid growth of sports betting has extended this category significantly in recent years.

Tobacco

Tobacco exclusions rest on the stewardship of the body as God’s creation (1 Corinthians 6:19–20) and the massive health harms tobacco causes—responsible for nearly 500,000 American deaths annually, predominantly from diseases caused by the product’s intended use. The tobacco industry has also historically engaged in significant corporate deception about those harms.

Screens exclude tobacco manufacturers, major distributors, and increasingly companies whose e-cigarette and vaping businesses represent significant revenue. The emergence of alternative nicotine products has complicated tobacco screening—most fund families are extending their tobacco screens to cover these products, though definitions vary.

Weapons and Defense

Weapons exclusions are the most theologically contested category in Christian sin stock screening. Positions range from no exclusion at all (reasoning that legitimate national defense is biblically supported under Romans 13) to selective exclusion of weapons of mass destruction to comprehensive pacifist exclusion of all defense industry participation.

The selective exclusion position—most common among mainstream Christian fund families—distinguishes between conventional weapons serving legitimate defense purposes and weapons specifically designed to maximize civilian casualties or violate international humanitarian law. Cluster munitions, antipersonnel landmines, chemical weapons, biological weapons, and nuclear weapons typically warrant exclusion under this approach; conventional defense contractors may not.

Christian investors should engage seriously with this category rather than simply adopting whatever their fund’s policy is. The theological questions—just war theory, the ethics of weapons manufacturing, the role of Christians in military and defense—are genuine ones that deserve personal reflection.

Revenue Thresholds: The Most Important Technical Detail

The single most practically significant decision in sin stock screening is the revenue threshold at which exclusion is triggered. This matters because most publicly traded companies are diversified conglomerates whose revenue spans many business activities.

A large consumer goods company might derive 8% of revenue from tobacco products, 15% from alcohol, and the remainder from unrelated household products. A technology company might provide cloud services to gambling platforms as a fraction of its overall business. A healthcare company might manufacture both life-saving medications and abortifacients.

Common threshold approaches:

0% threshold (zero tolerance): Any revenue from the excluded activity triggers exclusion. This produces the most consistently clean portfolio but dramatically narrows the investable universe and can produce counterintuitive results—excluding companies where the relevant activity is genuinely incidental to their business.

5% threshold: Excludes companies that derive more than 5% of revenue from excluded activities. This is the most commonly used threshold among Christian fund families. It excludes companies for whom the activity is a meaningful business segment while tolerating genuinely minor incidental exposure.

10% threshold: More permissive than 5%, allowing somewhat more exposure before triggering exclusion. Used by some fund families, particularly for less severe categories.

For the most serious categories—particularly abortion—lower thresholds are appropriate given the severity of the moral concern. For more contested categories, higher thresholds may be reasonable. Investors should ask their fund managers specifically what thresholds they apply to each exclusion category.

Grey Areas and Genuinely Difficult Cases

The clearest sin stock cases—a pure-play casino company, a major tobacco manufacturer, a dedicated adult entertainment studio—present little difficulty. But real portfolio management regularly encounters harder cases:

Diversified Retailers

Major retailers may sell tobacco products, alcohol, lottery tickets, and adult entertainment content alongside thousands of other products. Is a big-box retailer that derives 2% of revenue from tobacco sales a sin stock? Most fund managers would say no under a 5% threshold, but the honest answer involves judgment about the degree of facilitation involved.

Technology Infrastructure Companies

Cloud computing providers, payment processors, and internet infrastructure companies may serve gambling sites, adult content platforms, and cannabis businesses as clients among thousands of others. These companies don’t produce the content or operate the services, but they enable them. Some fund managers apply a “facilitation” standard that screens these companies; others argue that infrastructure provision doesn’t carry the same moral weight as direct production.

Advertising Platforms

Major digital advertising platforms may serve ads for gambling, alcohol, and adult-adjacent content. The revenue associated with these specific categories may be difficult to isolate, and the overall platform serves millions of advertisers including many unproblematic ones. This represents one of the most difficult categories in modern sin stock screening.

Social Media

Social media companies host pornographic content on their platforms (despite policies nominally prohibiting it), facilitate gambling community formation, and may have significant revenues from alcohol and tobacco advertising. Whether they constitute sin stocks depends heavily on how broadly the “facilitation” standard is applied.

Financial Services

Banks and financial services companies lend to, provide transaction services for, and invest in companies across all industries including excluded ones. A major bank that provides credit facilities to casino operators is providing financial infrastructure to gambling—but also to hospitals, schools, and thousands of unrelated businesses. Applying a rigorous facilitation standard in financial services would exclude virtually the entire sector.

The Data Problem

Accurate sin stock screening requires accurate data about company revenue by business segment. This data has significant limitations:

Voluntary disclosure: Companies are not required to disclose all revenue sources. Segment reporting requirements exist but don’t capture every activity that screening seeks to identify. Companies have incentives to minimize the visibility of controversial revenue sources.

Data provider variability: Third-party data providers—MSCI, Sustainalytics, As You Sow—may classify the same company differently based on how they define categories and what data they access. The same company might be classified as a tobacco company by one provider but not another based on threshold and classification differences.

Lag time: Data providers update their classifications periodically, not continuously. A company might change its business activities months before its screening classification changes.

Supply chain complexity: Direct revenue screens don’t capture indirect exposure through supply chains. A company might not produce tobacco products but supply packaging, equipment, or services exclusively to tobacco manufacturers. Whether this constitutes “involvement” is a judgment call that different screening approaches answer differently.

These limitations mean no sin stock screen is perfect. Investors should understand that any screen—even a rigorous one—will include some companies with some exposure to excluded activities. The goal is a substantially clean portfolio, not a mathematically perfect one.

Divestment vs. Engagement: A Genuine Debate

Christian investors who identify problematic corporate behavior face a fundamental strategic question: should they divest (sell the shares, exercise no further influence), or should they engage (maintain ownership specifically to advocate for change from within)?

The case for divestment rests on moral integrity and market signal arguments. Maintaining ownership of companies engaged in harmful activities makes you complicit in those activities. Even if your individual shareholding is small, divestment at scale—particularly institutional divestment—can raise a company’s cost of capital and signal market disapproval. The tobacco industry’s decades-long experience with divestment campaigns, culminating in major institutional exclusions by pension funds and endowments, suggests that divestment does carry real market effects over time.

More importantly for Christian investors, the moral integrity argument doesn’t require that divestment “work” in the sense of changing corporate behavior. Not profiting from immoral activity has value regardless of its market effect. The integrity of the investor—not the behavior of the company—is the primary concern.

The case for engagement argues that shareholders have a unique form of access that non-owners lack. Owning shares entitles you to vote proxies, submit shareholder resolutions, request meetings with management, and participate in the corporate governance process in ways that direct corporate behavior. For companies where change is realistically possible—perhaps a media company that could adopt stronger content policies, or a healthcare company that could change its employee benefits package—engagement may produce more change than divestment.

The classic example is apartheid South Africa: the churches and institutions that maintained South African investments but used their shareholder voice to advocate for divestment by companies, and for political change, may have had more impact than those that simply divested and walked away.

The balanced view recognizes that neither divestment nor engagement is universally superior. For companies in core excluded industries—whose fundamental business model depends on the excluded activity—engagement is unlikely to produce meaningful change and divestment is the appropriate response. For companies where the excluded activity is peripheral or changeable, engagement may be more productive. Many Christian fund families use both approaches: negative screening to exclude the worst actors while maintaining engagement through proxy voting and shareholder advocacy with companies that remain in the portfolio.

How to Screen Your Portfolio for Sin Stocks

For investors who want to evaluate their current holdings for sin stock exposure, several approaches exist:

Use a faith-based fund: The simplest approach. Christian investment funds from Timothy Plan, Inspire, Guidestone, Eventide, Ave Maria, and Praxis implement sin stock screening professionally, with research infrastructure most individuals can’t replicate. For investors whose primary goal is a substantially screened portfolio with minimal personal research burden, well-managed Christian funds are the most practical solution.

Screening tools: Several tools allow individual investors to analyze their holdings:

• As You Sow (asyousow.org) offers free screening tools for weapons, fossil fuels, tobacco, and other categories across thousands of funds and ETFs
• Morningstar’s sustainability data includes ESG risk scores and involvement screens accessible through its portfolio analysis tools
• MSCI’s ESG Fund Ratings, accessible through many brokerages, screen mutual funds and ETFs for involvement in excluded industries
• Inspire Investing’s Inspire Impact Score provides a Christian-specific screen accessible through their website

Direct analysis: For investors who hold individual stocks rather than funds, reviewing company annual reports, SEC filings, and investor presentations can reveal business segment revenue data that screening tools may not capture. This is time-intensive but most thorough.

Direct indexing with custom screens: Emerging direct indexing platforms—offered by Fidelity, Schwab, Vanguard, and specialized providers—allow investors to own individual securities comprising an index while applying custom exclusion lists. This provides diversification with personalized screening but typically requires minimum investments of $100,000 or more.

Does Sin Stock Screening Hurt Returns?

The financial performance question is frequently raised: Does avoiding sin stocks impose a financial cost?

The evidence is genuinely mixed, and thoughtful Christians should engage with it honestly rather than dismissing it:

Tobacco stocks, in particular, were among the best-performing equity investments of the 20th century. High profit margins, addictive products with inelastic demand, and generous shareholder returns produced excellent long-term performance. Christian investors who excluded tobacco throughout this period did forgo real returns—the cost of their convictions was financial, not merely theoretical.

Gambling stocks have historically outperformed the broad market in certain periods, particularly during the legal expansion of gaming.

However, the picture is more complex than “sin stocks always outperform.” Tobacco stocks now face existential pressure from declining smoking rates and regulatory risk. Gambling stocks have been volatile. Pornography distribution companies have been disruptured by the internet in ways that made them poor investments. The historical outperformance of sin stocks is more nuanced than it’s often presented.

More importantly for Christian investors, the financial performance question is secondary to the stewardship question. If sin stock exclusions impose a small performance cost, that cost should be understood as a genuine consequence of values-based investing—similar to any other investment constraint. The Christian investor’s goal is faithful stewardship, not maximum financial return, and a portfolio that reflects biblical values at a modest cost to returns may be more consistent with faithful stewardship than an unrestricted portfolio that optimizes financial performance without regard to what that portfolio owns and enables.

Building a Sin-Stock-Free Portfolio

Practically speaking, Christian investors have several options for building substantially screened portfolios:

For mutual fund investors, Timothy Plan, Inspire Investing, Guidestone, and Ave Maria all offer mutual funds across asset classes (domestic equity, international equity, fixed income) with sin stock screening. These funds provide diversification, professional management, and consistent application of screening criteria.

For ETF investors, Inspire’s BIBL, WWJD, and related ETFs provide low-cost exposure to screened equity portfolios. Timothy Plan also offers screened ETFs. These products have grown significantly and now provide genuinely competitive cost structures for values-based investors.

For retirement account investors, Guidestone and Timothy Plan offer 401(k)-compatible options that many employers now include. For investors whose 401(k)s lack screened options, advocacy with plan sponsors is possible; in the interim, maximizing the IRA contribution with screened funds may be the better approach.

No approach produces a portfolio with zero exposure to every possible sin stock—the complexity of modern corporate structures makes that effectively impossible without making the portfolio unmanageable. The goal is a portfolio that reflects serious, consistent stewardship: one that excludes the obvious cases, applies defensible thresholds to the ambiguous ones, and is managed by people committed to the same values you hold.

Conclusion: Ownership Carries Moral Weight

The decision to screen out sin stocks ultimately rests on a conviction that stock ownership carries moral weight—that what you own reflects who you are and what you enable in the world. This conviction isn’t unique to evangelical Christianity; it underlies the entire tradition of ethical investing from Quaker divestment of slavery investments in the 18th century to modern faith-based fund families.

The practical expression of this conviction requires judgment: about which activities rise to the level of warranting exclusion, about what thresholds are appropriate, about how to handle the genuinely ambiguous cases. Reasonable Christians will sometimes draw these lines differently. What isn’t reasonable is the claim that where your investment capital goes carries no moral weight at all—or the pretense that the pursuit of maximum financial return without regard to what that capital funds is consistent with the biblical call to steward all of life, including financial life, as an act of worship.

Positive screening—actively seeking companies that reflect biblical values—is the natural complement to sin stock exclusion. Positive screening asks not just what to avoid but what to pursue: companies that treat workers with dignity, deal honestly, serve customers faithfully, and steward resources responsibly. Together, negative and positive screening express a comprehensive stewardship conviction: that how you invest is as much a reflection of your values as how you spend, give, and serve.