Waste Connections enters its third-quarter report with an awkward disconnect. Management raised its full-year revenue outlook, pricing is tracking toward the top of its range and underlying margins have been expanding faster than planned. Yet the shares have fallen nearly 10% since the last report while the S&P 500 gained about 5%. When the company reports after the close on October 21, the question is whether the operating story can close that 15-point gap, or whether the market has spotted something the guidance does not yet reflect.

The Street expects earnings of $1.52 per share on revenue of about $2.60 billion. That works out to growth of roughly 5.6% and 5.8%, respectively, which is solid but unspectacular for a business that normally compounds steadily. It is also only a small step up from last quarter's $1.50 and $2.56 billion. The whisper number of $1.56 sits a few cents above consensus. That is not a dramatic gap, but it suggests the more engaged crowd expects the margin story to keep producing a modest beat. On the top line, the company now guides 2026 revenue to $10.02 billion to $10.05 billion, up from $9.90 billion to $9.95 billion. The full-year consensus of $10.00 billion actually sits just below the bottom of that new range. Either analysts have been slow to catch up, or they doubt the raise will fully hold. A quarter that keeps the company on pace for the range would argue the Street is too cautious.

The revenue raise needs careful reading. A meaningful portion of the extra dollars likely reflects fuel surcharges passed through after diesel spiked earlier in the year. Those surcharges lift sales but dilute margin percentages. Management singled out the second quarter as the worst point for the billing lag on fuel recovery. That makes the third quarter a clean test: surcharge collections should have caught up, and margins should show it. Last quarter's underlying margin expansion ran around 110 basis points, well above the 50 to 70 basis points embedded in the full-year plan, and the finance chief hinted at upside. If adjusted EBITDA margins show healthy year-over-year expansion even after fuel dilution, the narrative holds. If expansion slips back toward the original guide, the earlier outperformance starts to look like timing rather than trend.

Pricing is the other pillar. Core price ran at 6% early in the year, with management pointing to roughly 5.5% for the full year, the high end of its range. Management credits an AI pricing tool with a roughly 20% improvement in customer retention. Evidence that price remains near those levels without a jump in churn would support the case that technology is a durable margin lever. That lever is central to the company's claim of about 100 basis points of margin uplift by 2028. Volumes are where skepticism lives. Construction and demolition tonnage had fallen for ten straight quarters, and solid waste volumes were down around 1.5%. Special waste, which management treats as a leading indicator, had improved for six consecutive quarters. Continued strength there, plus any stabilization in C&D or roll-off activity, would hint that the cyclical floor is in.

Sentiment is unchanged and still mildly bearish, so the mood has not deteriorated, but it has not warmed despite the raised outlook. The stock trades near $154, well below its 200-day moving average of about $163 and only about 3% above its post-earnings low of $149. That is a weak technical posture, and it leaves room for relief if the numbers are clean.

Secondary items include updates on Chiquita Canyon, where free cash flow costs of $100 million to $150 million remain an overhang. Investors will also want news on the Arrowhead rail ramp, the teased new rail opportunity and recycled commodity prices. Ultimately, though, the report turns on one thing. Waste Connections needs to show that its margin expansion survives once the fuel lag has cleared. If it does, the stock's slide looks overdone. If not, the raised guidance will look more like inflation than improvement.