Where Did RTX Stock’s Gains Really Come From?

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RTX (RTX) produces Pratt & Whitney engines, Collins Aerospace aircraft systems and Raytheon missiles. Before dividends, the stock posted a 137.1% rise from the end of September 2021 to November 3, 2026. With sales higher in each of those years, it is natural to credit the business for the entire advance. So how much of that rise would you guess came from RTX simply selling more?

How Much Did RTX’s Sales Grow?

RTX’s sales climbed to $96.0 billion in the twelve months to September 2026, up from $63.8 billion in the twelve months to September 2021. This 50.5% advance compares with the 137.1% rise in the stock.

Sales growth alone explains nearly half of the stock’s rise. The company earned that share the plain way, simply by selling more engines, aircraft systems and defense equipment.

What Else Lifted RTX Stock?

Three other sources drove the rest of the advance, though they did not all push in the same direction.

The largest factor was RTX’s net margin, representing the share of sales the company keeps as profit, which rose from 5.2% to 8.8%. This wider margin explains about three-fifths of the stock’s rise, doing more for the shares than sales growth did. In fiscal Q3 2026, management credited higher sales volume, better productivity at Raytheon and a cost recovery for its higher adjusted segment profit, and that quarter’s profit also included restructuring and other one-time costs. Those reasons account for a single quarter of adjusted segment profit, not the five-year rise in net margin.

The price-to-earnings multiple, what investors pay for each dollar of profit, moved the other way. The multiple fell from 39.1 to 33.2, creating a drag worth nearly a fifth of the rise. At the same time, a 9.2% drop in the share count added about a tenth of the advance.

Can Margins And Multiples Keep Rising?

RTX logged a margin of 8.8% over the twelve months to September 2026. This figure includes any gain or loss the company reported as one-time, and it remains less than half the ten-year high of 18.6% set in fiscal Q3 2019. Based on quarter-end prices, the multiple sat at 29.9 at the end of September 2026, compared with a ten-year high of 59.1 in June 2024. It is below the table’s 33.2 because the stock rose after September and because this figure uses the basic share count, not the diluted one.

Sales can keep growing for as long as RTX sells more. A margin cannot widen without end, and a multiple cannot rise without end. Here only the margin provided a lift, given the fall in the multiple, and this lift does not repeat the way sales growth can.

What RTX Would Need To Repeat Its Rise

If the margin, the multiple and the share count stayed where they are, RTX’s sales would need to grow 18.5% a year for a little over five years, matching the duration of the previous advance, to lift the stock as much again. Over the last five years, sales grew 8.5% a year.

Current sales are exceeding that historical pace, climbing 11.6% in the twelve months to September 2026 from a year earlier. Even so, this rate falls short of the pace a repeat would require. On the October 20, 2026 call, management raised its 2026 forecast for organic sales growth to 10% to 11%, citing defense work, equipment for new aircraft at Collins Aerospace and aftermarket work on GTF engines at Pratt & Whitney.

RTX’s sales growth is the figure to watch. Management plans to provide a detailed outlook for 2027 alongside its fourth-quarter report in January.

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