Why Every Investor Needs a Strategy (and How to Build One That Works for You)

October 23, 2025
Quantitative Investing 101
4
min read
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Introduction: Investing Without a Map

Imagine setting out on a road trip without a map, GPS, or even a clear destination. Chances are, you’d waste time, gas, and energy—and might not end up anywhere worth going. That’s what investing without a strategy looks like. Too often, investors rely on gut feelings, news headlines, or the latest hot tip to pick stocks. The results? For a 20-year span ending in 2015, the S&P 500 averaged around 8.2% annual return, while the average investor realized only around 2.1% annually. Source: Crews Bank & Trust

The good news: You don’t need to be a Wall Street expert to invest with confidence and earn professional returns. What you do need is a clear, repeatable strategy that helps you make decisions with discipline and purpose.

Why a Strategy Matters

  1. Consistency beats emotion. Markets are noisy. A strategy helps cut through the headlines and keeps you from chasing fads or making rash decisions.
  2. Better decision-making. A framework helps you evaluate opportunities objectively—whether that’s choosing stocks, ETFs, or deciding when to buy and sell.
  3. Confidence through clarity. With a strategy, you know why you’re making each move. That confidence compounds over time, just like your investments.
  4. Measure what matters. Having a plan allows you to benchmark your performance against clear goals or indexes (like the S&P 500)—so you know if your portfolio is really succeeding long term.

What Makes a Good Investment Strategy?

A good strategy doesn’t have to be complicated. In fact, simple often works best. Here are a few core elements:

  • Clear Goals. Are you investing for retirement, a down payment, or building wealth long-term?
  • Rules for Buying. For example: only invest in businesses you understand (like Peter Lynch does), or only buy when valuations meet your criteria.
  • Rules for Selling. Set conditions for trimming or exiting positions so you don’t let emotions drive decisions. Often an investing strategy has recommended buying and selling periods.
  • Diversification. Spread risk across industries, geographies, or asset classes.
  • Benchmarks. Choose a yardstick (like the S&P 500) to measure whether your strategy is working. At a minimum you want your investments to perform as well as the market average, ideally better.

How to Build an Investing Strategy That Works for You

  1. Start with your goals. Write them down—be specific. “Retire at 60 with $1M” is better than “build wealth.”
  2. Choose your style. Do you want to be hands-on (an active investor) or mostly hands-off (like the average investor)? Either way, there's a strategy that fits your time.
  3. Pick a framework. You can borrow proven investing strategies from the greats (Warren Buffett, Peter Lynch, James O'Shaughnessy) or create your own investing rules.
  4. Test and track. Backtest your strategy to simulate portfolio performance. Modify any strategies that underperform compared to the S&P 500. Use benchmarks to compare how your strategy performs over time.
  5. Refine, don’t reinvent. Stick with your chosen investing strategy, but make thoughtful tweaks as your goals or circumstances change.

The Bottom Line

Every investor—whether you check your portfolio daily or twice a year—benefits from having a proven investing strategy. It saves time, builds confidence, and improves outcomes. And the best part? Strategies don’t just make you a smarter investor; they make investing less stressful and more rewarding.

With the right tools, you can stop guessing and start investing with purpose.

Ready to explore proven strategies or build your own?

Accountable makes it easy to invest smarter with confidence.

Get Started Now
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Kelly Gillease

Kelly Gillease is an executive business leader with 20+ years of hands-on experience across all disciplines in marketing at profitable, growth-oriented start-ups. She was a key contributor to successful strategic acquisition exits at Hotwire (IAC), Viator (TripAdvisor) and StudyBlue (Chegg), as well as CMO during NerdWallet's IPO. As a Co-Founder and CMO of Accountable Finance Kelly is leading content strategy and marketing. Kelly’s thought leadership, writing, and editing has been featured in numerous publications including Fast Company, AdAge, Chief Marketer, and Search Engine Land. Kelly was recognized as a 2020 "40 Over 40" honoree by Campaign US.

post editor photo
Kelly Gillease

Kelly Gillease is an executive business leader with 20+ years of hands-on experience across all disciplines in marketing at profitable, growth-oriented start-ups. She was a key contributor to successful strategic acquisition exits at Hotwire (IAC), Viator (TripAdvisor) and StudyBlue (Chegg), as well as CMO during NerdWallet's IPO. As a Co-Founder and CMO of Accountable Finance Kelly is leading content strategy and marketing. Kelly’s thought leadership, writing, and editing has been featured in numerous publications including Fast Company, AdAge, Chief Marketer, and Search Engine Land. Kelly was recognized as a 2020 "40 Over 40" honoree by Campaign US.

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