ServiceNow, Tyler, and Celanese Join Morningstar’s 5-Star List

Every week, Morningstar screens its coverage universe for stocks that have just entered its highest conviction territory—a 5-star rating. This week, three names made the leap: software firms ServiceNow and Tyler Technologies, and chemical maker Celanese. The move from 4 stars to 5 signals that after recent price declines, these companies now trade at what Morningstar considers a deep discount to their intrinsic worth.

ServiceNow dropped 4.32% over the past week, pushing its stock into 5-star territory. The large-core software application company is now priced 40% below Morningstar’s fair value estimate of $165 per share. Tyler Technologies, a small-cap provider of government software, lost 7.00% on the week and trades at a 41% discount to its $500 fair value target. Celanese, despite a 1.60% weekly gain, sits at a 51% discount to its $95 fair value, earning a 5-star rating and a Very High Uncertainty Rating.

The broader U.S. market remains moderately undervalued, with the Morningstar US Market Index at an 8% aggregate discount. However, these three stocks stand out for their steep individual price-to-fair-value gaps and the elevated uncertainty that accompanies them.

What Morningstar’s 5-Star Rating Tells Investors About These Three Names

Morningstar’s Star System: More Than a Simple Discount

The 5-star rating is driven by a stock’s price relative to Morningstar’s fair value estimate, but it also accounts for the range of possible outcomes captured by the Uncertainty Rating. A High or Very High rating means the fair value itself is sensitive to assumptions—profitability, competitive dynamics, or input costs could swing meaningfully. A 5-star tag here isn’t a guarantee of future gains; it’s a signal that the current price offers a margin of safety large enough to compensate for that uncertainty, according to Morningstar’s methodology.

ServiceNow: A Narrow Moat but a 40% Margin of Safety

ServiceNow carries a narrow economic moat, meaning Morningstar sees competitive advantages that are real but not impenetrable over a long horizon. The 40% discount to fair value, paired with High Uncertainty, suggests that while the stock could be deeply undervalued, investors must be comfortable with the possibility that the fair value estimate itself could compress if the company’s growth trajectory or competitive position weakens.

Tyler Technologies: Wide Moat in Government Software

Tyler Technologies is the only one of the three with a wide economic moat—a designation typically reserved for companies with durable competitive advantages that Morningstar expects to persist for at least 20 years. The 41% discount, combined with a High Uncertainty Rating, implies that even a high-quality business can see its intrinsic worth fluctuate. Tyler’s government-focused client base often brings stability, but the wide moat doesn’t eliminate the risk that its fair value could shift materially.

Celanese: Very High Uncertainty in Chemicals

Celanese’s narrow moat and Very High Uncertainty Rating make it the most volatile pick of the three. Chemical companies are exposed to raw-material costs, cyclical demand, and global trade dynamics, all of which can swing fair value estimates sharply. The 51% discount may look compelling, but it also reflects the market’s deep skepticism. Morningstar’s rating indicates that, even after accounting for that extreme uncertainty, the stock appears undervalued—though the range of plausible outcomes is unusually wide.

What the Discounts, Moats, and Uncertainty Ratings Mean for Potential Buyers

For investors who find these stocks’ deep discounts intriguing, Morningstar’s own data provides clear, concrete factors to weigh:

  • Discounts are large but paired with wide outcome ranges. ServiceNow (40% discount), Tyler Technologies (41%), and Celanese (51%) all carry High or Very High Uncertainty—meaning the fair value estimates themselves could change significantly under different scenarios. The discounts provide a cushion, but not a floor.
  • Moat quality matters. Tyler Technologies’ wide moat may offer more confidence that its competitive position will endure, while ServiceNow and Celanese carry narrow moats, leaving them more exposed to competitive or cyclical pressures. This distinction can help investors prioritize where they want to bet on a recovery.
  • Celanese’s Very High Uncertainty demands special caution. A 51% discount may be enticing, but it reflects a fair value that is itself subject to extreme swings. Only investors with a very long time horizon and high risk tolerance are likely to find that risk-reward balance acceptable.