• Zacks Investment Research is a U.S. independent research company (founded by Len Zacks in 1978) best known for a quantitative earnings‑estimate–driven stock‑rating system called the Zacks Rank.
– The Zacks Rank groups securities into five categories (1 = Strong Buy through 5 = Strong Sell) based primarily on changes in earnings estimates and related metrics.
– Zacks offers products for individual investors (free content and paid tiers), a stock screener, and rank systems extended to mutual funds, ETFs and industry groups.
– Zacks’ strength is a repeatable, rules‑based, earnings‑revision approach; its limitations include reliance on analyst estimates and historical patterns (so it’s best used with other analysis and risk management).
Understanding Zacks Investment Research
Zacks Investment Research produces data, quantitative models, research reports and tools to help investors make decisions. The firm aggregates earnings estimates and research from many brokerage houses and uses a mathematical model to identify stocks with improving or deteriorating earnings outlooks. Because Zacks’ system is quantitative and rule‑based, it aims to remove individual analyst bias and provide consistent signals across thousands of companies.
How the Zacks approach works (high level)
– Core idea: revisions to earnings‑per‑share (EPS) estimates are highly predictive of near‑term stock price direction—upward EPS revisions often attract institutional demand and drive prices higher.
– Data sources: Zacks collects analyst estimates and research from dozens of brokerage firms for thousands of U.S. and Canadian stocks and aggregates those inputs into consensus figures.
– Products: daily rank updates, research reports, stock screener, industry and fund ranks.
Zacks Ranks
What the ranks mean
– Zacks Rank 1 — Strong Buy
– Zacks Rank 2 — Buy
– Zacks Rank 3 — Hold
– Zacks Rank 4 — Sell
– Zacks Rank 5 — Strong Sell
Interpretation
– A Zacks Rank 1 means the quantitative model suggests a favorable one‑year return outlook; Zacks reports that historically Rank 1 stocks have shown strong average returns versus the market in many periods.
– The Rank is intended as a timing/short‑term (roughly one‑year) tactical signal driven primarily by earnings‑estimate momentum, not a deep fundamental valuation score.
The factors behind the Rank (summary)
Zacks uses four quantitative factors centered on earnings and related metrics (Zacks provides detailed methodology in its guides). In practice these include:
– Direction and magnitude of revisions to EPS estimates (current and next fiscal periods).
– Momentum/sustainability of those estimate revisions.
– How actual reported earnings compare with expectations (earnings surprises).
– Other related quantitative measures that capture analyst consensus changes and momentum.
Important — strengths and limits
Strengths
– Systematic, repeatable, and fast at picking up changes in analyst expectations.
– Useful as a tactical input or as an initial filter for further research.
Limits
– Dependent on analyst estimates and revisions—if estimates are sparse or inaccurate, signals can be noisy.
– Focused on near‑term earnings momentum; it may miss long‑term value stories or companies with improving fundamentals not yet reflected in EPS forecasts.
– Not a full substitute for company‑level fundamental due diligence or risk management.
Zacks vs. Morningstar
– Zacks: quantitative, earnings‑revision/momentum approach focused on short‑term performance signals for stocks, plus extended rankings for funds and ETFs.
– Morningstar: larger emphasis on fundamental analysis and qualitative analyst research for funds (star ratings based on past risk‑adjusted returns relative to peers and category) and company/sector analysis.
– Both provide free and paid tiers; they complement each other—Zacks is often used for short‑term tactical screens, Morningstar for long‑term fund selection and fundamental context.
Example of Zacks Rank in action
– A documented case: in July 2012 Zacks assigned LSB Industries (LSX) a “Strong Buy” based on upward earnings estimate revisions from brokerage analysts. Over the following three months LSX returned around 36% versus about 5% for the S&P 500 in the same window. This type of example illustrates how concentrated analyst upgrades can precede a stock rally, which is the core premise behind Zacks’ method.
What Is Zacks Stock Screener?
– The Zacks Stock Screener is a tool (part of Zacks’ product suite) that lets investors filter stocks by many attributes: Zacks Rank, EPS estimate changes, price performance, yields, valuation multiples, technicals and more.
– The screener integrates Zacks‑specific fields (Zacks Rank, surprise history, EPS revisions) alongside standard financial metrics so you can create targeted lists such as “Zacks Rank 1 stocks with recent upward EPS revisions and low debt.”
How much does Zacks Stock Screener cost?
– Zacks offers multiple tiers. At the time of writing, Zacks Premium Screens (included with a Premium membership) are available around $249 per year; higher tiers for professional or institutional tools range up to roughly $2,995 per year. Prices and package details change, so check Zacks’ site for current plans and trial offers.
What is the Zacks Industry Rank?
– The Zacks Industry Rank is the average Zacks Rank for all companies in a given industry. It provides a quick way to gauge whether a whole industry is experiencing positive or negative earnings momentum.
– Use case: an industry with a strong average rank can signal favorable tailwinds across constituent firms; conversely, a weak industry rank suggests caution or the potential to look for individual outperformers within a weak group.
What is the Zacks Mutual Fund Rank?
– The Zacks Mutual Fund Rank applies the Zacks methodology to mutual funds. Each quarter Zacks quantitatively scores many funds (tens of thousands) by assessing the underlying holdings’ Zacks Ranks and other quantitative factors, producing a fund‑level rating intended to reflect one‑year outlooks.
What is the Zacks ETF Rank?
– Similar to the mutual fund rank, the Zacks ETF Rank evaluates ETFs using quantitative inputs such as holdings quality, expense ratios, momentum, yields, and other relevant metrics to identify ETFs with better one‑year prospects.
Practical steps — how to use Zacks in your investing
1. Define your objective and horizon
• Decide whether you’re using Zacks for short‑term tactical trades (1 year or less) or as one input in a longer‑term portfolio process.
2. Start with the Zacks Rank as an initial filter
• Screen for Zacks Rank 1 and 2 (Strong Buy/Buy) if you want names with strong earnings momentum. Filter out Rank 4–5 for long‑only portfolios if you want to avoid deteriorating earnings stories.
3. Layer in quality and risk metrics
• Add filters for market cap, debt/equity, cash flow, revenue growth, and volatility to avoid low‑quality names that can have volatile short squeezes.
4. Check industry context
• Use the Zacks Industry Rank to see whether the stock’s sector has positive earnings momentum. Favor stocks that combine strong company rank with a healthy industry rank.
5. Examine earnings estimate trends
• Look at recent analyst estimate changes (current and next year) and whether earnings surprises have been positive—this is the heart of what drives Zacks signals.
6. Combine with fundamental/qualitative checks
• Read company reports, evaluate competitive position, management commentary, and balance sheet strength. Zacks is a momentum/estimates tool — fundamentals help confirm a durable story.
7. Use position sizing and stop/loss rules
• Because the signals can be short‑term and momentum‑driven, use disciplined sizing and defined exit rules (e.g., percentage stop, trend break, or deterioration in Zacks Rank).
8. For funds/ETFs: look under the hood
• When using Zacks Mutual Fund or ETF Ranks, review the top holdings, expense ratio, tracking error (for ETFs), turnover, and whether the fund’s strategy matches your goals.
9. Backtest and paper‑trade (optional)
• Before committing real capital, test a rules‑based strategy using historical Zacks Rank signals or paper‑trade to see how it fits your risk tolerance and objectives.
10. Use multiple information sources
• Combine Zacks’ quantitative signals with other research providers (e.g., Morningstar, company filings, macro analysis) for a balanced decision.
The bottom line
Zacks Investment Research provides a systematic, earnings‑revision‑centered lens that can be an effective tactical tool for identifying stocks and funds with improving or deteriorating earnings trends. It’s especially useful for screening and timing but should be combined with quality checks, risk management and complementary research for best results. Costs and product features vary by subscription level, so evaluate the trial and product options to see which tier fits your needs.
Sources and further reading
– Investopedia, “Zacks Investment Research” (overview):
– Zacks Investment Research, About Us:
– Zacks Investment Research, The Zacks Rank Guide / Four Factors Behind the Zacks Rank / Zacks Industry Rank / Zacks ETF Rank (see Zacks site for methodology guides and product pages)
(Neither this article nor its examples are investment advice. Consider consulting a licensed financial professional for personalized guidance.)
(Continuing and expanding the article)
Additional details about how Zacks builds and updates its products
– The company continuously collects earnings estimate data and published analyst research from many brokerage firms and institutional sources. Zacks aggregates those inputs each trading day to detect changes in the consensus view for thousands of companies and funds (Zacks Investment Research, “About Us”).
– The Zacks Rank is quantitative and updated frequently to reflect new analyst estimate revisions, earnings releases, and other measurable events. Zacks summarizes its methodology in several guides, emphasizing that the Rank centers on earnings estimate revisions and related metrics (Zacks Investment Research, “The Zacks Rank Guide”; “Four Factors Behind the Zacks Rank”).
Practical steps: How to use Zacks Ranks and related tools in an investment workflow
1. Define your objective and time horizon
• Decide whether you’re trading short-term (weeks to months) or investing long-term (years), and whether you need growth, income, or defensive exposure.
2. Start with the Zacks Rank filter
• For idea generation, screen for Zacks Rank #1 (Strong Buy) or #2 (Buy) if you want the stocks with the most favorable recent analyst estimate revisions.
• If you prefer more conservative choices, expand to #2–#3 or use additional financial filters (valuation, dividend yield, beta).
3. Check the Zacks Industry Rank
• Use the Industry Rank to identify favorable industry trends. An industry with a low (better) Industry Rank indicates that, on average, companies in the industry have recently seen positive estimate revisions (Zacks Investment Research, “Zacks Industry Rank”).
4. Examine the underlying earnings drivers
• Review the reasons for estimate revisions: Are revisions driven by real operational improvement, one-time items, or cyclical demand?
• Read the Zacks research note (if available) and look at recent earnings surprises and management commentary.
5. Confirm fundamentals and valuation
• Use free fundamental metrics (P/E, PEG, revenue growth) or third‑party tools (Morningstar, financial statements) to ensure the stock isn’t overvalued relative to its prospects.
• Compare the Zacks view to fundamental analysis: Zacks is estimate-driven; complement it with fundamentals-based analysis for a complete picture.
6. Manage position sizing and risk
• Determine position size based on your risk tolerance and diversification rules.
• Use stop-losses or trailing stops appropriate to your strategy.
7. Monitor and re-evaluate regularly
• Because Zacks Ranks are sensitive to estimate revisions, re-check positions after company earnings or meaningful news. Zacks updates ranks frequently, so a top-ranked stock can move ranks quickly.
8. Backtest or paper-trade any Zacks-based strategy
• Before deploying substantial capital, backtest the approach over historical data or use a paper account to validate expected performance and risk characteristics.
Examples of using Zacks in different strategies
– Momentum/short-term strategy
• Screen for Zacks Rank #1 or #2 with positive 1- and 3-month price momentum and low short interest. Buy when the Rank turns to #1 and sell if rank falls two levels or if price reverses by a pre-set percentage.
– Income-oriented ETF selection
• Use Zacks ETF Rank to screen for ETFs with favorable one-year outlooks that also have reasonable expense ratios and steady distributions (Zacks Investment Research, “Zacks ETF Rank Guide”).
– Mutual fund due diligence
• Use Zacks Mutual Fund Rank to see how a fund’s holdings’ average Zacks Rank looks; combine this with Morningstar’s qualitative manager and strategy evaluation for a fuller view (Zacks Investment Research, “Mutual Fund Education”).
Concrete example from Zacks’ published cases
– LSB Industries (LSX)
• Zacks gave LSX a “Strong Buy” in July 2012 because analyst estimates were being revised upward. Over the subsequent three months, LSX returned about 36%, versus roughly 5% for the S&P 500 — an example Zacks cites to illustrate how estimate revision momentum can precede significant stock moves (Zacks Investment Research, “Examples of the Zacks Rank in Action”).
How to use the Zacks Stock Screener (practical steps)
1. Access the Stock Screener (free basic version available; richer screens require paid tiers) (Zacks Investment Research, “Stock Screener”).
2. Choose a prebuilt screen or create a custom one:
• Example custom screen for a growth pick: Zacks Rank #1 or #2; positive 6- and 12-month price momentum; revenue growth > 10% YoY; market cap > $300M.
3. Refine by sector or industry and check the Zacks Industry Rank for that sector.
4. Sort results by metrics important to you (EPS revision percent change, price momentum, return on equity).
5. Save screens and set alerts for when new names meet your criteria.
Costs, tiers, and what you get
– Free content: Zacks provides basic articles, lists, and limited Rank information at no cost.
– Zacks Premium: Historically priced around $249/year; includes more detailed research, premium screens, model portfolios, and ranked lists (Zacks Investment Research, “Products”).
– Higher tiers: Zacks offers professional and institutional products that can cost up to several thousand dollars per year (the prompt referenced prices as high as $2,995/year). These include advanced screens, daily model portfolios, and institutional data feeds (Zacks Investment Research, “Products”).
– Always check Zacks’ site for current pricing and trial offers.
Zacks vs. Morningstar — how to combine both perspectives
– Zacks strengths: rapid, quantitative signal focused on earnings estimate revisions and short-term momentum; useful for idea generation and momentum-driven strategies (Investopedia: “Zacks Investment Research”).
– Morningstar strengths: deeper fundamental and qualitative analysis of funds and stocks, stewardship assessment, long-term performance evaluation and star ratings centered on risk-adjusted, category-relative returns.
– Recommended hybrid workflow:
• Use Zacks for short-listing names based on momentum/estimate revision signals.
• Use Morningstar and company filings to validate long-term fundamentals, management quality, and fees (especially for mutual funds and ETFs).
Limitations and pitfalls to watch for
– Zacks Rank is estimate-driven and can be volatile: Frequent analyst revisions can trigger rank changes that may not reflect permanent company improvements.
– Reliance on brokerage estimates: If analysts are uniformly slow to update or are biased in an industry, the consensus signals can lag.
– Survivorship and sector biases: Momentum strategies can concentrate risk in cyclical sectors; always control for sector exposure.
– Not a full investment thesis: Zacks is a powerful screening and timing tool, but should be one input among several in building a diversified portfolio.
Advanced techniques and ideas
– Combine Zacks Ranks with valuation screens: e.g., require a Zacks Rank #1 or #2 and a forward P/E below industry median for higher-quality momentum at attractive prices.
– Use Industry Rank for tactical sector rotation: overweight industries with top Industry Ranks and underweight those with bottom Ranks.
– Apply position rebalancing rules: set rules to trim winners when Zacks Rank deteriorates or when a stock moves away from your target allocation.
How to evaluate performance of a Zacks-based strategy
– Backtest with realistic assumptions: include transaction costs, slippage, and taxes (if applicable).
– Track metrics: annualized return, annualized volatility, maximum drawdown, Sharpe ratio, hit rate (percent of picks that beat benchmark).
– Periodic review: evaluate performance over multiple market regimes (bull, bear, sideways) to understand when the model performs best.
Additional resources and reading
– Zacks Investment Research — About Us; The Zacks Rank Guide; Four Factors Behind the Zacks Rank; Stock Screener; Products; Zacks Industry Rank; Mutual Fund Education; Zacks ETF Rank Guide (Zacks Investment Research, accessed Sept. 2021).
– Investopedia summary: “Zacks Investment Research” (Investopedia).
Concluding summary
Zacks Investment Research provides a quantitatively driven, estimate-revision-focused set of tools and ratings that excel at idea generation and momentum-oriented strategies. The Zacks Rank (1–5 scale) and industry/fund/ETF ranks turn analyst estimate activity into actionable signals. Investors can use Zacks’ screener and premium products to find names with favorable recent earnings momentum, but they should pair Zacks’ outputs with fundamental analysis, valuation checks, risk management, and—where helpful—Morningstar’s qualitative fund research. As with any model, backtesting, sensible position sizing, and ongoing monitoring are essential to using Zacks effectively in a real portfolio.
References
– Zacks Investment Research. “About Us.” Accessed Sept. 4, 2021.
– Zacks Investment Research. “The Zacks Rank Guide.” Accessed Sept. 3, 2021.
– Zacks Investment Research. “Four Factors Behind the Zacks Rank.” Accessed Sept. 3, 2021.
– Zacks Investment Research. “Examples of the Zacks Rank in Action.” Accessed Sept. 3, 2021.
– Zacks Investment Research. “Stock Screener.” Accessed Sept. 4, 2021.
– Zacks Investment Research. “Products.” Accessed Sept. 4, 2021.
– Zacks Investment Research. “Zacks Industry Rank.” Accessed Sept. 4, 2021.
– Zacks Investment Research. “Mutual Fund Education.” Accessed Sept. 3, 2021.
– Zacks Investment Research. “Zacks ETF Rank Guide.” Accessed Sept. 3, 2021.
– Investopedia. “Zacks Investment Research.” Accessed Sept. 2021.