49 timeless quotes on investing and life
"We search through historical data looking for anomalous patterns that we would not expect to occur at random."
— Jim Simons
"Past performance is the best predictor of success -- not credentials, not reputation."
— Jim Simons
"I wasn't the fastest guy in the world. I compensated with persistence."
— Jim Simons
"We search for patterns in data that are predictive of future prices. The patterns have to be statistically significant and stable over time. Human emotion and judgment should not override the data."Read Full Analysis →
"Good science requires good scientists. We hire PhDs in mathematics, physics, and computer science—not Wall Street traders. The best minds in quantitative fields can find patterns others miss."Read Full Analysis →
"You only need to be right 50.75% of the time to make a fortune. A small edge, applied consistently across thousands of trades with proper risk management, compounds into extraordinary returns."Read Full Analysis →
"Markets generate massive amounts of data. Machine learning algorithms can detect subtle patterns and relationships that humans cannot perceive, adapting to changing market conditions automatically."Read Full Analysis →
"In a competitive market, revealing your edge destroys it. Keep your methods, signals, and strategies strictly confidential. The value of an edge decreases as more people try to exploit it."Read Full Analysis →
"Don't rely on a single model or pattern. Use thousands of uncorrelated signals and strategies. When one stops working, others continue to generate returns. Redundancy builds robustness."Read Full Analysis →
"Markets evolve and patterns decay. Your models must constantly improve. What worked yesterday may not work tomorrow. Never stop researching, testing, and refining your approach."Read Full Analysis →
"Human traders are subject to fear, greed, and cognitive biases. Automated systems execute without emotion, following the strategy precisely. The system doesn't get scared or greedy."Read Full Analysis →
"Speed and reliability of execution are crucial. Invest heavily in technology infrastructure, data feeds, and execution systems. Milliseconds matter when trading at scale."Read Full Analysis →
"Every strategy has a capacity limit. Too much capital chasing the same edge destroys it. Keep your fund size manageable to preserve returns. Sometimes smaller is better."Read Full Analysis →
"Never overpay for a security, no matter how exciting the story. The price you pay determines your return. Discipline in valuation is the foundation of investment success."Read Full Analysis →
"Always estimate the intrinsic value of a business before investing. Compare price to value, not price to past price. The gap between price and value is where profits are made."Read Full Analysis →
"Use conservative assumptions in your valuation. Optimistic projections lead to overpaying. It is better to underestimate value and be pleasantly surprised than to overestimate and be disappointed."Read Full Analysis →
"Invest in businesses with durable competitive advantages, strong cash flows, and management integrity. Quality businesses compound wealth over time and reduce downside risk."Read Full Analysis →
"Before investing, identify the moat — the sustainable competitive advantage that protects the business from competitors. No moat means no long-term edge."Read Full Analysis →
"Not all earnings are equal. Look for recurring, cash-backed earnings rather than accounting profits. High-quality earnings are predictable, sustainable, and convertible to free cash flow."Read Full Analysis →
"The most successful investors stay within their circle of competence. Know what you understand well and resist the temptation to venture outside it."Read Full Analysis →
"Surface-level knowledge is dangerous in investing. Develop deep expertise in your areas of focus. True understanding means knowing what could go wrong."Read Full Analysis →
"Markets are driven by fear and greed. The disciplined investor exploits these emotions rather than being controlled by them. Emotional control is the key competitive advantage."Read Full Analysis →
"Understanding crowd psychology is essential. When everyone agrees, the opportunity has usually passed. The best time to act is when the crowd is most fearful or most confident."Read Full Analysis →
"The best investments often feel uncomfortable because they go against popular opinion. If everyone loves a stock, it's probably overpriced. If everyone hates it, investigate."Read Full Analysis →
"Before considering how much you can make, consider how much you can lose. Risk management is not about avoiding risk entirely, but about understanding and controlling it."Read Full Analysis →
"The size of your position should reflect your conviction and the risk involved. Never bet so large that a single mistake can wipe out your portfolio."Read Full Analysis →
"In a world obsessed with quarterly results, patience is the ultimate competitive advantage. Great investments often take years to play out fully."Read Full Analysis →
"Compound interest is the eighth wonder of the world. Those who understand it earn it; those who don't, pay it. Time is the most valuable asset in investing."Read Full Analysis →
"Think in decades, not days. The market rewards patient capital and punishes impatience. Most of the gains in investing come from sitting and waiting."Read Full Analysis →
"The cardinal rule of investing: buy only when the price is significantly below your conservative estimate of intrinsic value. This builds in protection against error."Read Full Analysis →
"The stock market is a no-called-strike game. You don't have to swing at every pitch. Wait for the fat pitch — the opportunity that offers exceptional risk-reward."Read Full Analysis →
"Never invest in anything you don't fully understand. Thorough research is the foundation of every sound investment decision."Read Full Analysis →
"Have clear, pre-defined sell criteria. Sell when: your thesis is broken, valuation is fully realized, or a significantly better opportunity appears."Read Full Analysis →
"Regularly review whether your original reasons for owning a stock still hold. If the facts change, change your mind. Holding a broken thesis is the costliest mistake."Read Full Analysis →
"After every sell, review the outcome. Did you sell too early, too late, or at the right time? Post-mortems on sell decisions improve future judgment."Read Full Analysis →
"Draw insights from multiple disciplines — psychology, history, mathematics, and science — to build a lattice of mental models for better investment decisions."Read Full Analysis →
"Think in probabilities, not certainties. Every investment has a range of possible outcomes. Weight your decisions by the expected value of each scenario."Read Full Analysis →
"Instead of asking how to succeed, ask how to avoid failure. Inverting problems often reveals insights that forward thinking misses."Read Full Analysis →
"A clear investment philosophy provides an anchor in turbulent times. Know what you believe, why you believe it, and stick to it when tested."Read Full Analysis →
"Focus on process, not outcomes. A good process can produce bad outcomes in the short run, but will generate superior results over time."Read Full Analysis →
"Develop your own investment philosophy through study and experience. Copying others without understanding why leads to confusion when strategies are tested."Read Full Analysis →
"Evaluate management by their actions, not their words. Look for a track record of capital allocation, shareholder communication, and aligned incentives."Read Full Analysis →
"Understand the industry structure before evaluating any company. Industry economics often matter more than company-specific factors in determining returns."Read Full Analysis →
"The principles that make you a great investor — patience, discipline, humility, and continuous learning — are the same principles that lead to a great life."Read Full Analysis →
"The ideal investment is a high-quality business purchased at a fair price. Quality compounds wealth; fair prices protect capital."Read Full Analysis →
"Never invest in a business you cannot explain in simple terms. If you can't describe why a company is valuable, you don't understand it well enough to own it."Read Full Analysis →
"Look for investments where a specific catalyst will unlock value. Without a catalyst, even cheap stocks can remain undervalued indefinitely."Read Full Analysis →
"The greatest enemy of the investor is himself. Fear, greed, regret, and pride cause more losses than any economic event. Master your emotions to master the market."Read Full Analysis →
"Know the common behavioral biases that trap investors: anchoring, confirmation bias, loss aversion, and herding. Awareness is the first step to prevention."Read Full Analysis →
"The market exists to serve you, not to guide you. Use market prices to your advantage — buy when the market offers bargains and sell when it offers premiums."Read Full Analysis →
"Markets move in cycles driven by human emotion. Understanding where you are in the cycle helps you prepare for what comes next and position accordingly."Read Full Analysis →
"In the short run, the market is a voting machine; in the long run, it's a weighing machine. Prices can diverge wildly from value, but eventually converge."Read Full Analysis →
"We search through historical data looking for anomalous patterns that we would not expect to occur at random."
We have curated 49 verified Jim Simons quotes, each with source attribution and in-depth analysis.
Jim Simons frequently discusses value investing, risk management, and long-term thinking.