Micro-Cap Stock
Micro-Cap Stock
Equity securities of companies with market capitalizations below $300 million. These stocks carry the highest risk and potential return among market cap categories, with very limited liquidity, minimal analyst coverage, and heightened susceptibility to manipulation and fraud.
A biotech startup with a market cap of $150 million trades on the OTC market with daily volume under 10,000 shares. While it may offer 10x return potential if a drug trial succeeds, investors face extreme price volatility, wide bid-ask spreads, and the risk of total loss if the company fails.
Students often confuse micro-cap stocks with penny stocks. While there is overlap, micro-cap refers specifically to market capitalization (under $300M), while penny stock typically refers to price (under $5) and exchange listing (OTC). A stock can be micro-cap but trade above $5, or be a penny stock but have higher market cap.
How This Is Tested
- Determining suitability of micro-cap stocks based on client risk tolerance and investment objectives
- Identifying risks unique to micro-cap stocks including liquidity risk, fraud risk, and information risk
- Comparing micro-cap characteristics to small-cap, mid-cap, and large-cap stocks
- Understanding regulatory concerns and disclosure requirements for micro-cap investments
- Recognizing that micro-cap stocks require the highest risk tolerance and longest time horizons
Regulatory Limits
| Description | Limit | Notes |
|---|---|---|
| Market capitalization threshold | Under $300 million | Defines the upper boundary for micro-cap classification |
Example Exam Questions
Test your understanding with these practice questions. Select an answer to see the explanation.
Margaret, a 68-year-old retiree, has $400,000 in retirement savings and receives $2,500 monthly from Social Security. She mentions reading about a micro-cap technology company that could "make investors rich" and asks if she should invest $50,000 (12.5% of her portfolio) in this stock. Her stated investment objective is capital preservation with moderate growth. Which of the following would be the most appropriate response?
B is correct. Micro-cap stocks carry the highest risk among equity market cap categories, featuring extreme volatility, very low liquidity, and potential for total loss. Margaret's stated objective of capital preservation directly conflicts with the speculative nature of micro-cap investing. At age 68 with limited retirement savings ($400,000) and modest Social Security income ($2,500/month), she lacks the financial capacity to absorb potential losses and cannot afford the long time horizon needed to potentially recover from micro-cap volatility. A 12.5% allocation to a single speculative micro-cap stock would be unsuitable regardless of the dollar amount.
A is incorrect because 12.5% is actually a substantial portion of her portfolio for such a high-risk investment, and suitability is not determined by percentage alone but by alignment with objectives and risk tolerance. C is incorrect because reducing the amount does not address the fundamental suitability mismatch between her capital preservation objective and micro-cap speculation. D is incorrect because waiting for the company to reach small-cap status does not solve the suitability issue, as even small-cap stocks may be inappropriate for her capital preservation goals.
The Series 65 exam heavily tests suitability analysis, particularly the ability to identify when speculative investments like micro-cap stocks conflict with client objectives. You must recognize that capital preservation and micro-cap speculation are fundamentally incompatible, regardless of position sizing.
What is the market capitalization threshold that defines a micro-cap stock?
C is correct. Micro-cap stocks are defined as companies with market capitalizations below $300 million. This is the standard threshold that distinguishes micro-cap from small-cap stocks (typically $300M to $2B).
A ($50 million) represents the very smallest micro-caps but is not the defining upper threshold. B ($100 million) is sometimes used in academic contexts but is not the standard industry definition. D ($2 billion) is typically the upper boundary for small-cap stocks, not micro-caps.
The Series 65 exam tests knowledge of market capitalization categories to assess your ability to properly categorize securities and understand their associated risk profiles. Knowing the $300 million threshold is essential for identifying micro-cap stocks in exam questions.
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Access Free BetaCompared to large-cap stocks, micro-cap stocks typically exhibit which of the following characteristics?
B is correct. Micro-cap stocks exhibit significantly higher volatility (larger price swings) and much lower liquidity (harder to buy/sell without affecting price) compared to large-cap stocks. These characteristics stem from smaller company size, limited trading volume, fewer market participants, and greater susceptibility to news and rumors.
A is the opposite of reality: micro-caps have higher volatility and lower liquidity than large-caps. C is incorrect because micro-caps have substantially higher volatility, not similar levels. While micro-caps do typically offer lower or no dividend yields, this is not their primary distinguishing characteristic. D is incorrect because micro-caps typically have higher beta (more volatile than the market) and minimal analyst coverage, whereas large-caps have lower beta and extensive analyst coverage.
The Series 65 exam tests your understanding of how market capitalization correlates with risk characteristics. Recognizing that smaller market caps mean higher volatility and lower liquidity is fundamental to making appropriate suitability recommendations and understanding systematic risk categories.
All of the following statements about micro-cap stocks are accurate EXCEPT
B is correct (the EXCEPT answer). Micro-cap stocks do NOT typically trade on major exchanges with tight bid-ask spreads. Instead, most micro-caps trade over-the-counter (OTC) on markets like the OTCBB or Pink Sheets, where they experience wide bid-ask spreads due to low liquidity. The wide spreads increase transaction costs for investors and reflect the difficulty of finding buyers and sellers.
A is accurate: The defining characteristic of micro-cap stocks is market capitalization below $300 million. C is accurate: Due to low liquidity, limited oversight, and minimal analyst scrutiny, micro-cap stocks are more susceptible to pump-and-dump schemes, market manipulation, and fraudulent practices. D is accurate: Most micro-cap companies have few or no professional analysts covering them, and public information is often limited to basic SEC filings, creating information asymmetry risks for investors.
The Series 65 exam tests your ability to distinguish micro-cap trading characteristics from large-cap stocks. Understanding that micro-caps typically trade OTC with wide spreads (rather than on major exchanges) is critical for explaining liquidity risks and transaction costs to clients considering these investments.
An investment adviser is evaluating a micro-cap stock for potential inclusion in client portfolios. Which of the following characteristics would typically apply to this investment?
1. Market capitalization under $300 million
2. High daily trading volume ensuring easy entry and exit
3. Significant price volatility requiring high risk tolerance
4. Limited publicly available research and analyst coverage
B is correct. Statements 1, 3, and 4 are accurate characteristics of micro-cap stocks.
Statement 1 is TRUE: By definition, micro-cap stocks have market capitalizations below $300 million, distinguishing them from small-cap ($300M-$2B), mid-cap ($2B-$10B), and large-cap (over $10B) stocks.
Statement 2 is FALSE: Micro-cap stocks typically have LOW daily trading volume, making entry and exit difficult. This low liquidity is one of the primary risks, often resulting in wide bid-ask spreads and the potential for significant price impact when buying or selling even modest positions.
Statement 3 is TRUE: Micro-cap stocks experience extreme price volatility due to their small size, limited float, susceptibility to news and rumors, and the outsized impact that small trades can have on price. Only investors with high risk tolerance should consider these securities.
Statement 4 is TRUE: Most micro-cap companies receive minimal or no coverage from professional analysts, and publicly available information is often limited to basic SEC filings. This information gap creates additional risk as investors must conduct their own extensive due diligence.
The Series 65 exam tests comprehensive understanding of micro-cap characteristics to assess whether you can properly evaluate these securities for client portfolios. Recognizing that micro-caps combine low liquidity, high volatility, and limited information is essential for identifying which clients (aggressive growth investors with long time horizons) might be suitable candidates for these speculative positions.
💡 Memory Aid
Think of micro-cap stocks as tiny startups at the farmer's market compared to large-caps at major grocery chains. Under $300 million market cap = limited inventory (liquidity), wildly fluctuating prices (volatility), minimal health inspections (analyst coverage), and higher risk of spoiled goods (fraud). Only suitable for investors who can afford to lose their entire investment and won't need the money for years.
Related Concepts
This term is part of this cluster:
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Where This Appears on the Exam
This term is tested in the following Series 65 exam topics:
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