CNI: Full Valuation Meets Rising Leverage as Buybacks Outstrip Free Cash Flow

What happened

Canadian National Railway shares have climbed to new highs, prompting a downgrade to neutral as the stock trades near 21x forward earnings, above the ~19x level seen in our last deep-dive. Q3 results showed the earnings beat was partly aided by fuel surcharges, while underlying volume growth was only 4% and organic EPS growth is tracking about 6% year-to-date. More concerningly, buybacks and dividends exceeded free cash flow, pushing leverage higher and prompting Moody's to revise its outlook to negative. Our prior analysis had flagged the risk that aggressive capital returns could strain the balance sheet if free cash flow did not keep pace, and that scenario is now materializing. The combination of full valuation and deteriorating credit metrics strengthens the case for remaining on the sidelines.

Implication

Investors should resist the temptation to buy Canadian National Railway at a 21x forward earnings multiple when organic earnings growth is only mid-single digits and underlying volumes are barely expanding. The fact that buybacks and dividends are exceeding free cash flow suggests management is borrowing to sustain shareholder returns, a practice that is already drawing scrutiny from Moody's and could pressure the investment-grade rating if continued. While CN's network moat and cost discipline remain intact, the stock now prices in flawless execution with little margin for error. Our previous WAIT thesis hinged on waiting for a pullback toward $90 or clearer evidence that capex and regulatory risks would not erode free cash flow; the new information on leverage makes that stance even more prudent. A better entry point may emerge if the stock retreats below $95 or if management explicitly commits to aligning capital returns with free cash flow generation.

Thesis delta

The previous WAIT rating was premised on a narrow risk-reward at ~$99 with a base-case value of $105 and an attractive entry around $88. With the stock now trading at new highs near 21x forward earnings and buybacks/dividends exceeding free cash flow, the risk-reward has worsened and the margin of safety has evaporated. Consequently, we shift from a neutral 'wait for a pullback' stance to a more cautious 'avoid at current prices' stance, with the thesis now hinging on either a valuation reset or a change in capital allocation policy.