Deferred Settlement Service: Everything You Need to Know in 2025

The deferred settlement service (DSS) is a central mechanism of the Paris stock market, allowing investors to speculate, hedge, or leverage their investments significantly. This comprehensive guide delves into the workings of the DSS, eligible securities, benefits, risks, as well as rules and tips to take advantage of this system in 2025.

What is the Deferred Settlement Service (DSS)?

The DSS is a system that allows investors to buy or sell certain listed stocks or ETFs by deferring both payment and delivery of the securities until the end of the month rather than immediately after the order. Through this method, an investor can invest in amounts greater than their liquidity, benefit from increases or decreases in the securities, and have a leverage effect up to five times their cash coverage.

Unlike a cash transaction where the purchase or sale results in a delivery-settlement within two business days (T+2), the DSS postpones this settlement to a single deadline, usually the last business day of the month, known as the "settlement day." The investor must then settle, extend, or deliver their position on this date according to the official DSS calendar.

History and Evolution of the DSS

The deferred settlement service replaced the old monthly settlement specific to the Paris Stock Exchange in 2000. Its goal was to allow investors (both individuals and professionals) access to speculation, credit for stock purchases, and regulated short selling.

The DSS has evolved to adapt to European and international standards, incorporating new selection criteria for eligible stocks, limiting leverage, and enhancing investor information on risks. In 2025, it compensates for some restrictions of the futures market and derivatives by making leverage available on major Euronext Paris securities.

How Does the DSS Work?

Basic Principle

When buying or short selling on a DSS security, the broker finances the position: the investor pays only a portion called the “coverage,” the rest being advanced by the broker for a fee. At the end of the month, the client decides whether to extend (postpone), settle (sell or repurchase depending on the position), or take actual delivery of the investment.

DSS Calendar Mechanism

Each month follows a precise calendar:

  • Start of the trading month: the first day of trading opens just after the settlement day of the previous month.
  • Last day of DSS trading: generally around the 25th of each month (example: November 25, 2025 for the month of November).
  • Settlement-delivery: the resolution (payment/delivery of securities) typically occurs three business days after the last day of trading (example: November 28, 2025).

During this period, the investor remains exposed to the risk of price fluctuations on their DSS positions taken. At settlement, they may choose to:

  • Close out position (full or partial sale or repurchase according to initial position)
  • Roll over position (roll over to the next month, new fees apply)
  • Take delivery (actual delivery of securities to portfolio, full payment realized)

All operations conducted under SRD during the month are settled in one lump sum at the end of the month.

Example of SRD Usage

An investor wishes to benefit from an expected rise in the Airbus share price without committing the full amount required for 100 shares. He opens a buy SRD position with a cash cover of only 20% of the value of the position (five times leverage). If the share rises by 10%, he theoretically realizes a 50% gain on his investment (excluding fees), but if the market falls by 10%, he loses 50% as well. At the end of the trading month, he decides to close his position, collect the profit (or loss), or roll it over for another month with a new financing rate.

Eligible Securities for SRD in 2025

SRD eligibility is strictly reserved for a selection of securities:

  • About 170 listed values in Paris, including all CAC 40 stocks and most of the SBF 120.
  • Approximately 40 values are only available in SRD long only: it is only possible to buy on margin, short selling is prohibited.
  • Fixing-priced stocks (small caps, approximately 550 companies) are excluded: insufficient volume and higher liquidity risk.
  • Certain eligible SRD ETFs, but neither bonds nor futures contracts nor other derivatives are accessible through this service.

The eligibility criteria are: market capitalization above one billion euros, high daily trading volume (generally above 1.5 million euros). To obtain the up-to-date list of SRD securities and their ISIN codes, it is advisable to consult the Euronext Paris website or request information from your broker. Securities may be added or removed annually based on these criteria.

Advantages of SRD

SRD offers numerous advantages for savvy investors:

  • Leverage effect: possibility to invest up to five times the available liquidity.
  • Selling short: speculate on falling prices for large stocks for hedging or seeking performance in bear markets.
  • Easy access: integrated service in almost all securities accounts at French banks and brokers.
  • Dynamic management: construction of complex strategies such as hedges, arbitrages, or short-term volatility exposures on the markets.
  • Deferred settlement: optimization of treasury management, grouped payment and delivery at the end of the month.
  • Regulated process: strict regulation protecting the investor, systematic margin calls in case of unfavorable movements.

Risks and Limitations of SRD

Using SRD involves real risks:

  • Leverage Amplifying Losses: A negative performance is magnified. A leverage of 5 can result in losing the entire investment if there is an unfavorable price movement of 20% of the security.
  • Liquidity Risks: On less traded securities, executing at desired prices may be difficult, generating volatility during liquidation.
  • Specific SRD Costs: SRD commission on each transaction, rollover fees when rolling over, higher financing rates than in the cash market.
  • Margin Call Risk: If collateral becomes insufficient, the broker may sell all or part of the position to cover the risk.
  • SRD Only on Liquid Securities: Most French companies are not eligible, especially SMEs listed at the fixing.
  • Beta Slippage for Some Leveraged SRD ETFs: The difference between expected and actual performance, related to the daily adjustment of leverage.

Focus on SRD Costs in 2025

The total cost of an SRD operation includes several components:

  • SRD Transaction Commission: Generally higher than in cash transactions.
  • Rollover and Financing Commissions: Charged when rolling over the position at the end of the month, involving an annual rate often close to or above 8-12% depending on brokers.
  • Possible Management Fees on Certain Eligible ETFs.

It is important to compare the tariffs offered by different brokers and evaluate their impact on expected profitability.

SRD: For Which Investor Profile in 2025?

SRD remains a tool reserved for informed investors who can bear the increased risk of capital loss due to leverage. Only about 10% of individuals actively use it in France. It is relevant:

  • For investors seeking offensive strategies in the short or medium term
  • For those mastering the active management of open positions
  • For some professionals and active traders in ordinary stock accounts
  • To optimize the liquidity of certain equity operations using leverage as a hedging tool

SRD: Best Practices for 2025

To benefit from the advantages of SRD while protecting one's capital, it is necessary to follow some fundamental rules:

  • Limit the leverage used: never commit the entirety of one's purchasing power on margin.
  • Monitor positions daily: adjust quickly at the first unfavorable movement to avoid margin calls.
  • Accurately analyze the liquidity of SRD stocks: prefer the major names of the CAC 40 or SBF 120 to start.
  • Ensure a thorough understanding of the unwinding mechanism at month-end: plan in advance the exit strategy or rollover.
  • Incorporate real fees into the expected return calculation: do not neglect financing costs and various commissions.
  • Train through simulators or a demo account: to understand the induced volatility and maneuvering margins.

SRD vs Other Leveraged Instruments

Product Leverage Effect Underlying Assets Settlement Scope Target Audience
SRD Up to 5 Stocks & Major ETFs Deferred end of month About 170 titles Individuals, professionals
CFD Up to 30 Stocks, indices, forex, commodities Near-immediate International Experienced traders
Futures Variable Indices, rates, commodities Near-immediate Organized markets Professionals
Margined Account 1 (no leverage) All Immediate (T+2) Total General public

Practical Questions About SRD in 2025

What are the coverage obligations?

The investor must have an equivalent cash or stock cover of about 20% of the open position. Margin calls occur if the net position becomes too risky during the month.

Can SRD be used on all listed products?

No, only the most liquid securities of the Paris market are accessible in SRD. Bonds, warrants, futures, securities quoted at the fixing or low market capitalization are excluded. Only certain ETFs benefiting from high liquidity may be eligible, but with specific restrictions.

Can I sell short through SRD?

Yes, SRD allows short selling on the majority of eligible securities, except for "long-only" values where only credit purchases are allowed.

What is the applicable tax regime?

Capital gains and losses realized through SRD are subject to the standard tax regime for securities, including income tax and social security contributions. It is necessary to declare precisely all closed and extended operations each year.

Specific Points of Caution Regarding SRD

  • Leverage Cap: it cannot exceed five times the cash coverage for each position, as set by French regulation to limit excessive risks.
  • No SRD on all securities: the annual selection incorporates strict criteria for liquidity and market capitalization.
  • No inclusion of bonds or derivatives: the SRD is limited to major stocks and a restricted selection of ETFs.
  • Key dates to watch: final trading sessions in the month and different settlement dates each month according to the official calendar published.
  • Watch for “beta slippage” effect for some SRD ETFs: actual performance may diverge from theoretical performance due to daily erosion of leverage.

SRD Calendar November 2025

  • Last day of trading: November 25, 2025
  • Settlement-delivery: November 28, 2025
It is essential to anticipate market movements and plan the management of one’s positions around these deadlines.

Conclusion: The SRD, A Dynamic Tool But Demanding

The SRD remains in 2025 a powerful tool for investing with leverage on the largest stocks of the Paris Stock Exchange, while providing considerable flexibility to buy, short sell, or hedge. It combines easy access, leverage, deferred settlement, and a wide range of strategies. However, it primarily targets informed and disciplined investors capable of fully integrating its specific risks, fees, and regulated deadlines. Before getting started, it is strongly recommended to consult the official list of eligible titles, compare brokers' pricing policies, and for beginners, practice through simulators or demo mode.

Finally, each SRD decision must be based on a clear strategy, rigorous risk management, and precise knowledge of the current month's calendar, an indispensable condition for benefiting from this flagship mechanism of the Paris Stock Exchange in 2025.