46% revenue growth can't justify the price when insiders dump $1.2B during record margins.

A fast grower with 46% revenue growth and 77% margins that insiders are selling aggressively — the story is too good and too expensive.

What kind of company is this and what should I expect?

This framework classifies AppLovin as a fast grower — Lynch's favorite category where 10-baggers live. The 46% revenue growth combined with margin expansion creates the explosive earnings growth Lynch loved, though the Q4 deceleration to 18% suggests the easy growth phase may be ending.

Can I explain to my eleven-year-old why this company grows?

The growth story is beautifully simple: AppLovin connects apps with users using AI that gets smarter with scale. Every new advertiser makes the platform more valuable to app developers, creating the network effect Lynch prized. The margin expansion proves the story is working.

Am I paying a fair price for the growth I'm getting?

With a PEG around 1.1, the valuation is slightly above Lynch's preferred 1.0 threshold but not egregious for a fast grower. However, the framework would note that growth is decelerating from 46% to 18% in Q4, which could push the forward PEG much higher.

Are insiders buying this growth story with their own money?

This is a massive red flag for Lynch — insiders are systematically liquidating during the best operational performance in company history. When the people running the business sell $1.2B while margins hit records, they're telling you something about sustainability.

Are we in the early, middle, or late innings of this growth story?

The framework sees late-middle innings — growth is decelerating, margins are at extremes, and the easy gains from the 2022 bottom are behind us. The first-time value creation (ROIC > WACC) is positive, but happening as other metrics peak.

Applying this framework reveals a classic late-stage fast grower — extraordinary current performance but concerning forward indicators. The 77% margins and $3.9B free cash flow demonstrate a phenomenal business model, but 12 quarters of insider selling during peak performance suggests those closest to the business see limited upside. Lynch taught us to buy growth at a reasonable price, but at 52x earnings with decelerating growth and massive insider liquidation, this framework finds more red flags than opportunities. If the insiders who built these 77% margins won't hold the stock, why should you?

This analysis applies Peter Lynch's published investment framework to publicly available financial data. It is not authored by, endorsed by, or affiliated with Peter Lynch. Educational purposes only. Not financial advice.