The Most Important Stocks to Watch in a Weak Market, According to Investor’s Business Daily

It takes a certain level of self-control to watch a market decline for five weeks in a row without giving in to the urge to either completely run away or buy everything at once, assuming that the bottom has been reached. In most cases, neither response is effective. Paying close attention to which stocks are not declining tends to work, at least according to the framework that Investor’s Business Daily has developed over decades of market analysis. It’s important to comprehend the names that are holding their ground in a market where the Dow has fallen more than 10% from its February peak and the Nasdaq has lost almost 13% from its October record.

There is no subtlety to the background. The Strait of Hormuz, a shipping route that transports a sizable portion of the world’s oil supply, has been disrupted and Brent crude has risen to $112 per barrel as a result of the U.S.-Israeli conflict with Iran, which started with airstrikes on Iranian energy infrastructure on February 28. Expectations for inflation have increased. Rates are being held while the Federal Reserve monitors the situation.

The S&P 500 recorded its fifth weekly loss through late March, its worst monthly run since 2022, and the CNN Fear and Greed Index has entered extreme fear territory. The majority of growth stocks have seen price reductions in this environment, and the technology companies that drove indexes higher during the majority of 2024 and the first part of 2025 have suffered the most.

Throughout the volatility, IBD’s analysts have been pointing out a group of names that have one thing in common: even as the overall market declines, their Relative Strength lines, a measure of a stock’s performance against the S&P 500, are either close to or at new highs. There is significance to that divergence. It finds businesses that are outperforming under circumstances intended to penalize underperformers, which is about as clear an indication of true resilience as technical analysis can provide. Part of the reason is that most retail investors are unfamiliar with the names on IBD’s current watch list.

Both Curtiss-Wright and Comfort Systems have been mentioned for emerging from what IBD refers to as “shallow bases”—chart patterns that indicate a stock has established a solid foundation rather than merely recovering from a brief low. Rather than being negatively impacted by increased geopolitical tension, Curtiss-Wright, which produces highly engineered parts for defense and naval systems, operates in a sector that directly benefits from it.

When oil prices rise, defense spending doesn’t decrease; in fact, the opposite is true. Regardless of the state of the equity markets on any given week, Comfort Systems, a mechanical and electrical contractor for commercial buildings, exemplifies the type of durable infrastructure company that typically has steady order backlogs. Neither business receives the same level of media attention as Apple or Nvidia. Right now, both are doing better.

Another name that has garnered attention is ESCO Technologies, which staged a 50% rally in 2026 before building on those gains with more recent breakouts. The company works in the utility, defense, and aerospace industries, which IBD specifically notes are less vulnerable to economic volatility in the current climate. Experienced IBD readers interpret the Ensign Group’s support at its 10-week moving average as institutional investors stepping in to defend a position rather than letting the stock drift lower with the market. Ensign Group is a nursing facility operator with roughly 20 percent EPS and revenue growth over the last several quarters. Such supportive behavior is important. It implies that professional money recognizes value that should be safeguarded.

Perhaps the most well-known name on the list is Caterpillar, whose appearance needs to be explained. Analysts have started monitoring the heavy equipment manufacturer as an indirect beneficiary of AI infrastructure buildout, in addition to traditional industrial factors like construction activity and worldwide infrastructure spending. Caterpillar’s equipment is a component of the substantial physical construction needed for data centers. With a buy point close to $790, the stock is forming what IBD refers to as a constructive cup base, indicating that the chart is creating the kind of structure that precedes breakouts in favorable circumstances. The main uncertainty is whether those conditions materialize prior to or following a settlement of the Middle East conflict.

Given that Marvell Technology withdrew from a recent buy point while still demonstrating relative resilience in comparison to the larger chip industry, it is also worth mentioning in this context. Despite significant pressure on the semiconductor industry—a Google algorithm announcement last week sped up chip stock sales—Marvell’s exposure to custom AI silicon has kept institutional interest largely stable. Anyone treating the stock as a clean buy at this time is taking on more risk than the chart ideally justifies because it’s still unclear whether the stock has completed its consolidation or has more to fall.

There is a discernible pattern to what makes it through a challenging market: companies with consistent revenue, controllable debt, and operations that don’t depend on a stable or expanding economy. Because commodity volatility is its operating environment, Marex Group, a commodity trader, has seen a sharp increase in relative strength.

A market that penalizes most sectors actively improves conditions for businesses designed to manage price swings. That serves as a helpful reminder that, despite what the index numbers may indicate, not all businesses are equally impacted by weak markets. IBD has long maintained that the discipline is learning to discern which companies the market is genuinely supporting, even when it seems to be rejecting everything.