
What happened
Eli Lilly's tirzepatide drug Mounjaro drove most of the company's sales growth last quarter, the same day Keith McCullough called the stock another pick. For holders, that leaves a premium-priced stock leaning on one product line for most of its growth.
Profit grew, but more slowly than sales. In an 8-K filed with the SEC on Oct. 29, Eli Lilly reported third-quarter revenue of $24.4 billion, up 38.6% from the same quarter a year earlier. Net income rose 15.5% to $6.5 billion, and diluted earnings per share rose 16.3% to $7.22.
Mounjaro brought in about $10.7 billion worldwide in the quarter. By OptimistFi's arithmetic on the company's figures, it drove about 62% of total revenue growth while making up only about 44% of sales.
Keith McCullough (@KeithMcCullough) posted on X on Oct. 29.
"$LLY remains Bullish TRADE and TREND @Hedgeye and another Signal Strength Stocks pick"
The stock rose sharply in its first session after the release. It closed at $1373.70, up 6.6% from $1288.30 on Oct. 28.
Read more: ELI LILLY & (LLY) company research
Why it matters
The release and the move sit beside McCullough's call, but on their own they say nothing about it.
OptimistFi's case rests on results like these, with revenue and profit both rising from a year earlier. It holds that Eli Lilly turns a high-margin cardiometabolic franchise, led by Mounjaro and Zepbound, plus a deep late-stage pipeline into outsized growth.
That case also needs volume-led growth and lasting margins to justify the price. The shares trade at 58.8 times the company's earnings over the last year.
Fast growth is not new here. In the fiscal year to Dec. 31, 2025, revenue was $65.18 billion with a net margin of 31.7%, after growing 44.7% on the year before.
The risk runs the other way. A lasting slowdown in tirzepatide volume or pricing, from rival drugs or payer limits, could hold growth to large-pharma norms if the pipeline does not fill the gap.
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What's next
The next quarterly report will show whether revenue and net income keep rising from a year earlier. A break in that run would test the case most directly.
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Sources
- @KeithMcCullough on X, October 29, 2026 — A post this story checks
- ELI LILLY & Co results release (SEC Form 8-K), October 29, 2026 — October 29, 2026
- ELI LILLY & Co on OptimistFi — Prices and the standing case
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Originally published on OptimistFi, evidence-first equity research. More at optimistfi.com.
