McDonald's officials unveiled their next growth plan last week, saying they will spend billions on redesigning restaurants and deploying AI, among other moves. Wall Street's reaction suggests investors are more concerned about how spending large sums could hurt earnings for now-and that they want to see evidence of payoff before giving the stock a higher valuation.

A wave of analysts lowered their price targets on McDonald's shares following the company's Investor Day announcements on Wednesday, even though most kept positive ratings on the stock. Many others kept their ratings and target prices unchanged.

Shares fell 4.8% Wednesday and touched a nearly four-year low of $234.03, after dropping as much as 6.5% during the session. Shares continued to fall on Thursday and Friday. The stock is down roughly 23% in 2026.

McDonald's used the Investor Day to lay out its NEXT strategy, which includes restaurant redesigns, operational simplification, targeted marketing, menu improvements, and deployment of AI-powered operating systems that could automate tasks and improve productivity.

The company expects those initiatives to improve restaurant-level efficiency by 2.5 percentage points, or roughly $100,000 of annual cash flow for an average U.S. McDonald's restaurant. Management is targeting an adjusted operating margin in the low-to-mid-50% range by 2030, up from 47% in the first half of 2026.

But getting there won't be cheap. McDonald's plans about $8.5 billion of franchisee support through 2036, starting with roughly $5 billion through 2030, including rent relief and $1.5 billion to $2 billion of capital support.

That spending helps explain Wall Street's caution. Analysts aren't rejecting McDonald's long-term strategy; they're questioning how quickly the plan could help improve sales, and what happens to earnings while investors wait for the payoff.

The fast-food industry is having a tough time. McDonald's recently said quick-service restaurant traffic was flat to negative in several of its largest markets, while its franchisees continued to face inflation in food, paper, and labor costs.

In the second quarter of 2026, McDonald's global comparable sales rose just 1.3% from a year ago, down from 3.8% in the first quarter and 3.1% for full-year 2025. Total guest counts in its U.S. stores even turned negative year over year.

Near-term sales remain under pressure. On Wednesday, management indicated that U.S. comparable sales were negative in July and August and that the third quarter is likely to finish slightly negative, despite improvement in September.

Raymond James analyst Brian Vaccaro said the success of NEXT will likely be measured "in years rather than quarters," noting that McDonald's has not provided rollout timelines for several initiatives.

Bernstein's Danilo Gargiulo called the spending burden the "biggest surprise" of the Wednesday event. Full implementation at an average U.S. McDonald's restaurant could require roughly $800,000 of incremental investment, on top of normal remodeling costs.

McDonald's plans substantial financial support for franchisees, but operators are still asked to commit significant capital despite weak traffic, elevated inflation, and limited room to raise prices further. Gargiulo questioned whether franchisees would be willing to make those investments.

McDonald's management expects NEXT investments to pay back in roughly four years for franchisees and five to six years for the company.

Assuming a 70/30 funding split between franchisees and McDonald's, Bank of America estimates that an average U.S. restaurant would need roughly a 7% to 8% sales lift to support those returns. That isn't impossible, but sets a relatively high bar for the investment to pay off.

While AI-powered voice ordering and inventory systems could reduce labor hours and food waste, BTIG's Peter Saleh questioned whether those savings would be enough for McDonald's to fully deliver its targeted efficiency gains.

Vaccaro also questioned whether improvement in food quality and dining experience will be enough to repair McDonald's value perception, noting that many fast-food meals now cost $10 to $13-directly in competition with value offers from casual-dining and fast-casual chains.

To be sure, Wall Street still likes McDonald's and the long-term verdict is much less gloomy. More than half of analysts surveyed by FactSet have a Buy rating for the stock, with an average target price that's 27% above current levels.

J.P. Morgan's John Ivankoe said McDonald's standardized technology and data infrastructure could provide a competitive advantage that's hard for smaller peers to replicate. Deutsche Bank's Lauren Silberman said she has become more confident after the Wednesday event that AI implementation can help McDonald's restaurants operate more efficiently and profitably.

BMO analyst Andrew Strelzik said McDonald's margin targets look achievable and remains bullish on the stock at its current valuation. Still, he expects near-term upside to remain limited until investors get clearer evidence that the investments are translating into growth.

McDonald's NEXT strategy is potentially powerful, but many of the benefits may take several years to fully emerge. With near-term traffic still soft and some analysts trimming earnings estimates, investors may need patience before the shares regain momentum.