You would not be alone if the last few years left you feeling both rewarded and unsettled at the same time. U.S. equities delivered a remarkable run through 2025, with a relatively small group of AI-linked megacap technology companies driving a disproportionate share of S&P 500 returns. For investors who owned those stocks, the gains were striking. For those who did not, the temptation to catch up was real. And for nearly everyone, the combination of strong recent performance and relentless headline noise has made staying put feel like the riskiest choice of all. In 2026, the pull toward market timing has rarely felt more rational—and rarely been more dangerous.
Behavioral biases that can hurt investment performance
Two biases in particular are doing much of the damage right now: recency bias and loss aversion. Recency bias leads investors to overweight the most recent period of returns and project them too confidently into the future. After three years of AI- and megacap-driven outperformance, this bias shows up as a quiet drift in portfolios—investors allowing technology and growth exposure to creep well above their policy targets, telling themselves the allocation still makes sense because “this is the new backbone of the economy.” The plan to trim “later” rarely survives the next headline about what AI might do next.
Loss aversion works in the opposite direction but with equal force. The pain of a drawdown registers roughly twice as intense as the satisfaction of a comparable gain—a finding documented extensively in behavioral finance research by Kahneman and Tversky. In practice, this means an investor who has already met many of their long-term goals will still sell down equities sharply after a routine 10–15% correction, even when their investment plan was built to accommodate exactly that range of volatility. The loss feels intolerable in the moment; the plan feels abstract. Together, these two biases help explain a persistent and costly pattern: investors chase rallies late and sell pullbacks early, in precisely the opposite sequence that compounding rewards.
The data on this is unambiguous. Research tracking investor behavior over decades—such as DALBAR’s quantitative analysis of investor behavior—consistently shows that the average equity investor has lagged the markets they invest in, not because of poor product selection, but because of poorly timed entries and exits driven by surges of optimism and waves of anxiety. In 2024, a year when the S&P 500 returned roughly 25%, the average equity investor captured significantly less, with the gap attributable largely to mistimed moves in and out of the market. Missing just a handful of the market’s best days—which are almost impossible to predict and tend to cluster around its worst days—can meaningfully reduce long-term returns. The cost of trying to dodge every downdraft is often missing the rebounds that do most of the compounding heavy lifting.
Why investors often overreact during market volatility
Part of the current challenge is that today’s environment feels uniquely uncertain. Geopolitics, shifting central bank expectations, and rapid changes in technology have contributed to periods when implied volatility rises well above realized volatility—meaning markets often price in more fear than actually materializes in day-to-day returns. For many investors, that gap between how frightening things feel and what markets are actually doing is exactly where harmful timing decisions are made. Portfolios that were built with a 15–20% drawdown in mind get abandoned at the first sign of one, because the lived experience of a correction is always more visceral than the plan that anticipated it.
What investment discipline means for high-net-worth families
Discipline, in this context, does not mean doing nothing. It means doing the right things consistently and deciding in advance what those things are. That starts with a strategic asset allocation aligned with long-term goals and a written investment policy that defines rebalancing bands, triggers for portfolio review, and the conditions under which risk would genuinely warrant adjustment. The more those decisions are encoded before the market becomes emotionally difficult, the less room there is for costly improvisation when it does.
For high-net-worth families and family offices, the stakes and the complexity are both higher. Consider a family that has received significant proceeds from a business sale or the vesting of a concentrated founder position. Without a pre-defined diversification program—one that specifies how quickly proceeds are deployed, across which asset classes, and under what market conditions the plan would or would not change—every quarterly move in the market becomes an invitation to renegotiate the strategy. The result is often a portfolio that drifts toward whatever felt safest in the most recent quarter, which is another way of describing recency bias operating at scale. A standing diversification plan, documented in advance, removes the decision from the heat of the moment.
The emotional payoff of this kind of structure extends beyond any single decision-maker. Families with clearly documented investment policies and rebalancing rules tend to experience significantly less intra-family tension when markets are volatile. When the question “should we be doing something?” already has a written answer, it stops being a source of conflict and becomes a point of reference. Peace of mind is not separate from long-term performance; it is often what allows families to stay invested long enough for their plans to come to fruition.
Sunpointe’s perspective: Staying consistent when markets are not
In our conversations with clients over the past several months, two patterns have stood out. The first is a quiet drift upward in equity exposure—particularly in AI and technology-linked positions—as outperformance has compounded and the impulse to trim has been repeatedly deferred. The second is an elevated level of cash sitting on the sidelines among families who, despite strong markets, find the current environment too noisy to act with confidence. Both patterns are understandable. Neither is a plan.
At Sunpointe, our emphasis remains on translating discipline from a principle into a process. That means explicit investment policy documents, defined rebalancing bands, and decision rules around concentrated positions and liquidity—rules that were agreed upon before the current set of headlines existed. It also means regular check-ins focused on whether portfolios still map to goals and time horizons rather than to last year’s winners. In our work with families, we assume the future will be noisy and build portfolios and processes accordingly. In a rich, noisy market, that kind of quiet consistency is not a passive posture. It is one of the most deliberate and powerful choices an investor can make.
As 2026 unfolds, markets are unlikely to become simpler or quieter. The more relevant question is not whether every development can be anticipated, but whether portfolios and decision-making processes are built so they do not depend on accurate short-term prediction to succeed.
If you are considering whether your current positioning still reflects your goals—or whether the drift of the last few years has quietly moved your portfolio away from your plan—we would welcome that conversation. Reach out to your Sunpointe advisor to talk through where you stand and how to move forward with clarity.
