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Restartable Sequences

By the editors·Monday, June 1, 2026·6 min read
Close-up of stock market trading screen displaying financial growth and charts.
Photograph by Alesia Kozik · Pexels

Are you looking for a smarter way to invest? Tired of traditional approaches that leave you vulnerable to market volatility? Then you need to understand restartable sequences. This powerful, yet surprisingly simple, investment strategy is gaining traction among financial advisors and individual investors alike – and for good reason. It offers the potential for higher returns with reduced risk, and a more predictable path to financial freedom.

This article dives deep into what restartable sequences are, how they work, the benefits they offer, and how you can implement them in your portfolio.

What Are Restartable Sequences?

At its core, a restartable sequence is a disciplined investment approach that strategically deploys capital over time, rather than all at once. Think of it as a hybrid between dollar-cost averaging and a more active, rules-based strategy. However, it's much more nuanced and potentially powerful than simple dollar-cost averaging.

Developed by financial researcher Harold Mulvihill, restartable sequences aren't about timing the market, which is notoriously difficult. Instead, they're about responding to market behavior based on pre-defined rules.

The sequence consists of a series of investments made at regular intervals (e.g., monthly, quarterly). Crucially, the size of each investment is determined by a pre-set plan, and the sequence can “restart” if the market experiences a significant downturn. This restart feature is what sets restartable sequences apart and provides a significant risk mitigation benefit.

Here's a simplified example:

Let’s say you have $12,000 to invest and you choose a 12-month restartable sequence. You might decide to invest $1,000 each month. However, if the market declines by, say, 10% after month 6, you restart the sequence. This means you add another $1,000 investment at that point, effectively doubling down when prices are lower. You then continue the remaining months of the sequence from that new restart point.

How Do Restartable Sequences Work in Practice?

The beauty of restartable sequences lies in their flexibility. You can customize them to fit your risk tolerance, investment goals, and time horizon. Key elements to consider include:

  • Sequence Length: How many investment intervals will your sequence span? Common lengths are 12 months (monthly investments) or 4 quarters (quarterly investments).
  • Investment Amount: How much capital will you allocate to each investment interval? This amount should be consistent throughout the sequence.
  • Restart Trigger: What percentage decline in your chosen investment (e.g., S&P 500 index) will trigger a restart? Common triggers range from 5% to 15%. A lower trigger restarts more frequently, increasing potential gains but also potentially increasing the number of sequences run.
  • Investment Vehicle: What will you be investing in? Restartable sequences can be applied to a wide range of assets, including:
    • Index Funds: https://example.com/ A low-cost, diversified option.
    • ETFs (Exchange Traded Funds): Offering similar diversification benefits to index funds.
    • Individual Stocks: For more experienced investors, but carries higher risk.
    • Bonds: Can be integrated into the sequence for risk mitigation.

Benefits of Using Restartable Sequences

Compared to traditional investment strategies, restartable sequences offer several compelling advantages:

  • Reduced Risk: The restart mechanism allows you to buy more shares when prices are down, lowering your average cost per share and mitigating the impact of market corrections.
  • Potentially Higher Returns: By capitalizing on market dips, you can significantly increase your long-term returns. Studies have shown restartable sequences can outperform both buy-and-hold and simple dollar-cost averaging strategies.
  • Disciplined Investing: The pre-defined rules remove emotional decision-making from the equation, helping you stay on track even during volatile market conditions. This combats behavioral biases like panic selling.
  • Adaptability: You can adjust the sequence parameters (length, amount, trigger) to suit your individual circumstances.
  • Simplicity: While the underlying logic is sound, the implementation is straightforward. You don't need to be a financial wizard to get started.

Restartable Sequences vs. Dollar-Cost Averaging

While both strategies involve investing a fixed amount over time, there’s a key difference. Dollar-cost averaging invests a fixed amount regardless of market conditions. Restartable sequences, however, increase investment when the market dips below a certain threshold, making it a more dynamic and potentially rewarding approach.

| Feature | Dollar-Cost Averaging | Restartable Sequences |

|---|---|---| | Investment Timing | Fixed intervals, regardless of market conditions | Fixed intervals, with increased investment upon market decline | | Risk Mitigation | Moderate | High | | Potential Returns | Moderate | Potentially higher | | Complexity | Simple | Moderately simple | | Restart Mechanism | No | Yes |

Implementing Restartable Sequences: A Step-by-Step Guide

Ready to give restartable sequences a try? Here's how to get started:

  1. Determine Your Investment Amount: How much capital are you willing to allocate to this strategy?
  2. Choose Your Sequence Length: A 12-month sequence is a good starting point for many investors.
  3. Set Your Restart Trigger: A 10% decline is a commonly used trigger, but consider your risk tolerance. More conservative investors might prefer a 15% trigger.
  4. Select Your Investment Vehicle: Consider low-cost index funds or ETFs for broad market exposure. https://example.com/ (Consider adding a link to a relevant book on index investing here).
  5. Automate the Process: Most brokerage accounts allow you to set up automatic investments, making it easy to stick to your sequence.
  6. Monitor and Adjust: While the strategy is designed to be hands-off, it's important to periodically review your sequence and make adjustments if your circumstances change.

Potential Drawbacks and Considerations

While restartable sequences offer numerous benefits, it’s important to be aware of potential drawbacks:

  • Increased Transaction Costs: Restarting the sequence more frequently can lead to higher transaction fees. Choose a brokerage with low or no fees to minimize this impact.
  • Potential for Underperformance: In a consistently rising market, a restartable sequence might underperform a simple buy-and-hold strategy. However, this is less common over the long term.
  • Psychological Discipline: Even with a pre-defined plan, it can be psychologically challenging to double down during a market downturn. Staying disciplined is crucial.
  • Not a Guarantee: Like all investment strategies, restartable sequences don’t guarantee profits. Market conditions can change, and there’s always a risk of loss.

Resources for Further Research

  • Harold Mulvihill’s original research: Search for "Harold Mulvihill restartable sequences" online to find articles and presentations on the topic.
  • Financial planning websites: Many financial blogs and websites now discuss restartable sequences.
  • Online calculators: Some websites offer calculators to help you model the potential performance of restartable sequences.

Conclusion: Taking Control of Your Financial Future

Restartable sequences represent a sophisticated yet accessible approach to investing. By combining the benefits of dollar-cost averaging with a disciplined restart mechanism, you can potentially achieve higher returns while reducing your overall risk. If you're looking for a smarter way to build wealth and secure your financial future, restartable sequences are well worth considering. Don’t just react to the market – strategically respond to it.

Disclaimer: I am an AI chatbot and cannot provide financial advice. This article is for informational purposes only and should not be considered a substitute for professional financial guidance. Investing involves risk, and you could lose money. Always conduct thorough research and consult with a qualified financial advisor before making any investment decisions. The links provided in this article are affiliate links, meaning I may earn a commission if you make a purchase through them. This does not influence my recommendations or the information provided.

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