CMC Markets — the CFD and spread betting platform — does not offer fractional share trading. You can only buy whole shares at CMC Markets. However, the picture is more nuanced than a simple “no”: CMC Markets’ CFD structure provides effective fractional-like exposure through flexible position sizing, and its sister investing platform CMC Invest rounds purchases to whole shares only, confirming there is no fractional share capability anywhere in the CMC Group ecosystem as of 2026. If fractional share investing is your priority, this article explains your best alternatives.
What Are Fractional Shares and Why Do They Matter?
Before examining CMC Markets specifically, it is worth establishing what fractional shares are and why so many investors actively search for brokers that offer them.
A fractional share is simply a portion of a single stock that is less than one full share. Historically, fractional shares only arose from corporate events — stock splits, dividend reinvestment plans, or inheritance of odd-lot positions. Over the past several years, however, a growing number of retail brokers have begun offering fractional shares as a deliberate product feature, allowing investors to buy a fixed pound or dollar amount of any stock rather than having to commit to the cost of a full share.
The practical impact of this is significant, particularly for investors with limited starting capital. Consider the following scenarios where fractional shares matter:
High-priced US stocks. Amazon, for example, trades at over $180 per share, Alphabet at over $170, and Meta at over $500. Without fractional shares, an investor with £500 would struggle to build a diversified portfolio across multiple high-value US stocks — the capital constraint forces a choice of one or two full shares rather than a spread across ten or fifteen companies. Fractional shares solve this by allowing a £50 allocation to Amazon alongside a £50 allocation to Alphabet, and so on.
Consistent investment amounts (pound-cost averaging). Many long-term investors prefer to invest a fixed amount each month regardless of market prices — a strategy called pound-cost averaging. Without fractional shares, a fixed monthly contribution to an expensive stock leaves uninvested cash sitting in the account when the contribution amount does not divide cleanly into whole shares. Fractional share support eliminates this friction entirely.
Portfolio diversification for beginners. New investors with smaller portfolios cannot achieve meaningful diversification across twenty or thirty stocks when each full share costs £50–£500. Fractional shares are effectively the entry mechanism for portfolio construction at small scale.
Does CMC Markets Offer Fractional Shares? The Full Breakdown
The answer depends on which part of the CMC Group you are using, but the short version is: no, neither CMC Markets nor CMC Invest currently offer fractional share trading.
CMC Markets (CFD Platform)
CMC Markets is primarily a CFD and spread betting broker. When traders ask whether CMC Markets offers fractional shares, they are usually asking about the main platform used for CFD and spread betting trading across forex, indices, stocks, commodities, and more.
The answer is no — CMC Markets does not offer fractional shares on its CFD platform. Confirmed as of February 2026 by independent expert testing at multiple review sites.
That said, there is an important nuance worth understanding: CMC Markets’ CFD instruments do allow highly flexible position sizing. You can trade a very small CFD position on a share — for example, 0.1 contracts of an Apple or Amazon CFD — which gives you price exposure to a fraction of that share’s value. This is sometimes described as “fractional-like” because your capital exposure can be calibrated to small amounts.
However, CFD exposure is categorically different from owning a fractional share. With a CFD:
- You do not own any part of the underlying share
- You are charged overnight financing (holding costs) for positions held beyond the trading day
- You have no entitlement to dividends (though CFD prices are adjusted for dividend events)
- You have no shareholder rights or voting entitlements
- Your position is a derivative contract with leverage and associated risk
- You pay capital gains tax (or are not exempt, unless using spread betting which has its own tax rules)
So while CMC Markets’ flexible minimum lot sizes provide trading flexibility, this is not the same as fractional share investing. If you are building a long-term portfolio and want to own slices of real companies at low cost, CMC Markets’ CFD platform is not the right tool.
You can read a full breakdown of CMC Markets’ CFD offering — including its 12,000+ instruments, spreads, and platform features — in our broader discussion of the best CFD brokers available to UK traders.
CMC Invest (Long-Term Investing Platform)
CMC Invest is the separate investing arm of the CMC Markets Group, launched in the UK in 2022. It is designed for long-term investors — not active CFD traders — and provides access to real shares, ETFs, mutual funds, and investment trusts through accounts including a Stocks & Shares ISA, Cash ISA, SIPP, and General Investment Account.
CMC Invest also does not support fractional shares. When investing through CMC Invest, you can only buy whole units of a share or ETF. If you enter a pound amount that does not divide cleanly into whole shares, CMC Invest rounds the purchase down to the nearest whole share and the remaining cash stays uninvested in your account.
This was confirmed in independent expert testing: a reviewer attempting to invest exactly £100 into an ETF found that CMC Invest did not fill the purchase to the full £100 — it purchased as many whole units as possible and left the remainder as uninvested cash. The reviewer specifically noted this as a meaningful limitation, since it defeats the purpose of specifying an exact investment amount and creates “leftover cash” that accumulates over time in a portfolio.
This limitation is confirmed across multiple independent review sources as of 2026 and is one of the most commonly cited drawbacks of CMC Invest for UK investors building smaller portfolios.
Why doesn’t CMC Invest offer fractional shares yet? CMC Markets Group has acknowledged the multi-asset investing landscape is evolving. In April 2026, CMC Markets signed Upvest as its infrastructure provider for a new multi-currency equities offering in Germany — a deal that includes fractional share capability through Upvest’s platform API. Upvest already powers fractional share infrastructure for Revolut, N26, Webull UK, and Santander’s Openbank. This strongly suggests that fractional share capability may be coming to CMC Invest in Germany first, with potential expansion to the UK in future. As of the time of writing, however, no fractional shares are available to UK CMC Invest users.
How CMC Markets’ Flexible CFD Sizing Works (And Its Limits)
For active traders using CMC Markets’ main platform, it is worth understanding exactly what the platform’s flexible lot sizing does and does not offer.
CMC Markets allows traders to specify CFD position sizes in very small increments. For most share CFDs, the minimum trade size is 1 share. This means you cannot buy 0.5 shares of Tesla as a CFD position — you need at least 1 full share CFD. For index CFDs and forex, the minimum size is typically much smaller and more granular.
The fractional options product that CMC Markets introduced (currently available in spread betting and CFD accounts) does allow fractional contracts on major US and European indices and the “Magnificent Seven” tech stocks. This is fractional in the sense of options contracts — not fractional ownership of shares — and is designed for precise position sizing in derivatives trading rather than portfolio building.
For a retail investor who simply wants to invest £30 in a slice of a US stock they cannot afford as a full share, none of this is relevant. The CMC Markets platform architecture is built for trading, not fractional share investing.
CMC Markets vs Brokers That Do Offer Fractional Shares
Given that CMC Markets does not offer fractional shares, the more useful question for most readers is: which regulated UK brokers do offer them, and how do they compare?
Here is a detailed comparison of the main options:
eToro
eToro is one of the most widely used platforms for fractional share investing in the UK and globally. UK and EU clients can buy fractional shares in thousands of US and international stocks, with minimum investment amounts as low as $10 per position. eToro also allows genuine share ownership for eligible clients in certain regions — meaning you can own a fraction of a real share, not just a CFD.
eToro’s fractional share offering is especially well-suited to investors who want to build a diversified portfolio with limited starting capital. For a UK investor with £200 who wants exposure to five or six different US tech stocks, eToro’s fractional shares make this achievable. The social trading and copy investing features make eToro additionally appealing for beginners who want to learn from experienced investors while building their portfolio.
It is worth noting that eToro’s foreign exchange fees (around 0.5% on non-USD transactions) mean you pay a currency conversion cost on every US stock purchase from a GBP account. Over time, for frequent buyers, this adds up. Our full eToro review covers the fee structure in detail.
eToro is also better positioned as a long-term investing platform than CMC Markets’ CFD offering. It is not well-suited to active day trading — for that, CMC Markets is the stronger option. But for fractional share portfolio building, eToro clearly leads.
Interactive Brokers
Interactive Brokers is the most sophisticated option for fractional share investing in the UK. IBKR offers fractional shares across thousands of US and global stocks, with minimum trade sizes as low as $1 for fractional positions. The range of fractional-eligible instruments is broader than almost any other retail broker.
Interactive Brokers is, however, better suited to experienced investors. The platform (particularly Trader Workstation) is complex and feature-dense. For a beginner trying to invest £50/month into a few ETFs, IBKR’s depth can feel overwhelming. For a more sophisticated investor who wants fractional access to global equities alongside margin trading, options, bonds, and futures — all at extremely competitive pricing — Interactive Brokers has few rivals.
Our Interactive Brokers review provides a full breakdown of its account types, fee structure, and platform capabilities.
IG
IG is one of the UK’s most established brokers and offers share dealing with real ownership. However, IG does not currently offer a dedicated fractional shares product for its share dealing accounts. For active traders, IG offers CFD and spread betting on shares with flexible minimum sizes, but this again is not the same as fractional ownership.
IG is an excellent choice for traders who want to combine active CFD and spread betting with longer-term share ownership in an ISA — it offers both under one login. For fractional share investing specifically, IG is not the right fit. You can read more in our IG review.
Pepperstone
Pepperstone is a best-in-class CFD and forex broker that does not offer fractional real share ownership. Like CMC Markets, its core strength is professional-grade CFD trading with tight spreads, fast execution, and a wide instrument range. For active traders comparing CMC Markets versus Pepperstone, the key differentiators are execution environment, platform choice, and 24/7 support — not fractional share capability, which neither broker provides.
If you are evaluating CMC Markets for its CFD trading capability alongside other professional platforms, our best day trading brokers guide covers the full competitive set including both CMC Markets and Pepperstone.
ThinkMarkets
ThinkMarkets offers over 1,500 stock CFDs for active trading but, like CMC Markets, does not offer fractional real share ownership. It is positioned as a CFD and forex broker with a strong proprietary platform. For long-term investors wanting fractional shares, ThinkMarkets is not designed for that purpose.
The CMC Markets CFD vs Fractional Shares Decision Framework
Many UK investors find themselves trying to decide between two different approaches to gaining exposure to global stocks:
Option A: CMC Markets CFD trading — active, leveraged exposure to stock price movements. No fractional shares. Overnight financing charged on held positions. No real ownership. Tax treatment depends on product type (CFD vs spread betting). Best for short-to-medium term active trading.
Option B: Fractional real shares — actual ownership of a fraction of a real company. No leverage. No overnight financing. Entitlement to prorated dividends. No shareholder voting rights on fractions. Best for long-term portfolio building, particularly through an ISA.
These are fundamentally different activities with different risk profiles, cost structures, and tax implications. The confusion arises because both give you price exposure to the same underlying stocks. But the mechanics, rights, costs, and regulatory protections are distinct.
For investors who want both — active CFD trading and long-term fractional share investing — the most common approach is to maintain two separate accounts: CMC Markets (or another CFD broker) for active trading, and a separate platform like eToro or Interactive Brokers for fractional share portfolio building.
If you are a newer investor still figuring out which approach suits your goals, our top stock brokers guide provides a comprehensive overview of the best regulated platforms for long-term equity investing in the UK.
Fractional Shares and ISA Accounts: Why This Gap Matters More for UK Investors
For UK investors specifically, the absence of fractional shares from CMC Invest has a compounding effect on ISA usability. The ISA annual allowance is £20,000. Many investors contribute far less than this — perhaps £100 or £200 per month. Without fractional shares, every monthly contribution leaves some uninvested cash in the account, because the purchase rounds down to whole shares.
For example, if you invest £100/month into an S&P 500 ETF priced at £76.50 per unit, you can only buy 1 full unit for £76.50 — leaving £23.50 uninvested. Over twelve months, that accumulates to nearly £282 sitting idle, earning at most the cash interest rate rather than market returns. Platforms that support fractional shares eliminate this cash drag entirely.
This is a real, measurable cost for pound-cost-averaging ISA investors. Independent reviewers have specifically flagged this as one of the reasons CMC Invest trails competitors like Trading 212 and eToro for small regular investors, despite otherwise offering a strong fee structure and solid research tools.
If you are using your annual ISA allowance to its maximum potential through fractional shares, our top stock brokers guide lists the ISA-eligible platforms that support fractional investing alongside their full fee and feature breakdown.
What CMC Markets Does Offer: Alternatives to Fractional Shares
While CMC Markets cannot offer fractional share ownership, it does have several features that partially address the accessibility problem for investors with limited capital:
No minimum deposit. CMC Markets and CMC Invest both have no minimum deposit requirement. You can open an account with any amount — even £1. This lowers the barrier to entry even if you cannot yet afford full shares.
Share baskets. CMC Markets offers “share baskets” — themed portfolios of multiple stocks grouped around specific investment themes (examples include AI, semiconductors, clean energy, China tech). A single position in a share basket gives you diversified exposure across multiple companies, with zero commission and lower holding costs than trading individual shares. For investors who want broad sector exposure without stock-picking, share baskets partially replicate the diversification benefit of fractional share investing.
ETF access on CMC Invest. ETFs (exchange-traded funds) track diversified indices and cost far less per unit than individual stocks. An FTSE All-World ETF unit might cost £70–£100, making whole-unit purchases accessible to most investors. Building a diversified global portfolio through low-cost ETFs on CMC Invest — without needing fractional shares — is a practical strategy for most retail investors.
CFD minimum size flexibility. For active traders, CMC Markets’ ability to specify very small CFD positions (on eligible instruments) allows precise allocation of capital without requiring full share CFD exposure.
What to Expect Next: CMC Markets and Fractional Shares in Future
Based on the Upvest infrastructure partnership for Germany (announced April 2026), the CMC Group is clearly building the technical capability for fractional share trading. Upvest’s API powers fractional share functionality for several major European fintech platforms, and CMC Markets’ decision to partner with Upvest for its German equities rollout signals that fractional share support is a strategic priority.
Whether this capability arrives in CMC Invest’s UK platform in the near term is not confirmed. The UK rollout is likely to follow Germany as a test market. Traders and investors who are monitoring this development should check CMC Markets’ product announcements directly.
For now, the position remains clear: CMC Markets and CMC Invest do not offer fractional shares as of 2026. If fractional share investing is a firm requirement, alternative platforms are the right choice.
Key Questions Answered
Does CMC Markets offer fractional shares? No. Fractional share trading is not available at CMC Markets or CMC Invest as of 2026.
Can you buy a fraction of a share on CMC Markets’ CFD platform? Not in the traditional sense. You can trade small-sized share CFDs, but these are derivative contracts and do not constitute fractional ownership of the underlying share.
Does CMC Invest offer fractional shares? No. CMC Invest rounds purchases down to the nearest whole share. Any remaining uninvested cash stays in the account.
Is CMC Markets planning to add fractional shares? CMC Markets partnered with Upvest in April 2026 to power a multi-currency equities offering in Germany that includes fractional shares. A UK rollout has not been confirmed.
Which UK brokers offer fractional shares? eToro, Trading 212, Freetrade, Interactive Brokers, and XTB are among the leading UK-regulated brokers offering fractional shares. XTB and eToro are rated highest for fractional share conditions in 2026.
What is the minimum investment at CMC Invest? There is no minimum deposit requirement at CMC Invest. However, since fractional shares are not supported, your minimum effective investment is the price of one full share in your chosen stock or ETF.
Does CMC Markets’ share basket product work like fractional shares? Partially. Share baskets give diversified exposure to multiple stocks through a single position with zero commission, which replicates some of the diversification benefit of fractional investing. However, share baskets are available as CFDs on the main CMC Markets platform, not as real ownership.
Can I get fractional share benefits through CMC Markets’ options product? CMC Markets offers fractional options (precise sizing of options contracts), but this is an advanced derivatives product — not fractional share ownership. It is not suitable for standard long-term investing.
Summary
CMC Markets does not offer fractional shares, and neither does CMC Invest, its sister investing platform. For active CFD traders who use CMC Markets for leveraged short-term positions, this is unlikely to matter — the platform’s flexible lot sizing and product breadth serve that purpose. For long-term investors who want to build a diversified portfolio with consistent monthly contributions, the absence of fractional shares is a meaningful limitation that creates uninvested cash drag and restricts portfolio diversification at small scale.
The CMC Markets Group has signalled fractional share capability is on its roadmap through the Upvest partnership for Germany. UK investors should monitor CMC Invest product updates for confirmation of when — or whether — this rolls out domestically.
For investors who want fractional shares today, eToro and Interactive Brokers are the most capable regulated alternatives in the UK market. For active CFD traders who also want fractional share exposure, the practical solution is to use CMC Markets for trading and a separate platform for the fractional share component of your portfolio.
Our top stock brokers guide and best CFD brokers comparison can help you evaluate both sides of this split-platform approach in full.
Capital is at risk. CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. This article is for informational purposes only and does not constitute financial advice. Product features may have changed since publication — always verify current conditions directly with the broker.
