---
symbol: "QCOM"
name: "Qualcomm"
date: 2026-07-31
change_pct: -3.890339425587455
direction: "down"
event_type: "guidance"
url: "https://perplo.app/why/QCOM/2026-07-31"
updated_at: 2026-07-31T23:06:35.286Z
---

# Why Qualcomm (QCOM) fell 3.89% on July 31, 2026

Qualcomm (QCOM) fell 3.89% on July 31, 2026 — Weak Q4 outlook spooks despite revenue beat.

## What happened

Qualcomm beat revenue expectations but guided Q4 weakness, revealing that Apple modem slowdown and near-term demand headwinds outweigh the beat — a classic revenue-miss-in-the-future setup.

## Why it moved

Weak forward guidance is the market's true concern; even though Qualcomm delivered on the top line, management's cautious Q4 outlook signals that the Apple modem transition is pressuring near-term visibility, forcing a…

## Why it matters

Qualcomm's weakness is the primary driver of the Chip Supply Chain selloff today — the company is the sector's bellwether on smartphone and modem demand, and its weak guidance signals that secular tailwinds (AI, handset…

## What would break the thesis

Management must prove that the Q4 weakness is temporary and that Apple modem design wins are maturing; if further guidance cuts come or the smartphone demand picture darkens, the stock will extend lower and drag the…

## Sources

- [Qualcomm Stock Falls on Weak Q4 Outlook Despite Revenue Beat](https://finnhub.io/api/news?id=7ada1b6082688151c3ee9e34acdbeeeaa6ea0f22789316a5dc060eed39280d2a) — Yahoo
- [Qualcomm Stock's Biggest Risk Is The Gap Between Pain And Payoff](https://finnhub.io/api/news?id=d1fa0f397be819a0bbae7e44d8fc0c0e789ebcaada2f2cc92cacc3f523a964a2) — Yahoo
- [Qualcomm Stock Falls 3.1% as Nine Analysts Cut Targets](https://finnhub.io/api/news?id=e1c7d8a7fc6fd751b07f462718ae57659785c173d63e31ff3bed538ab3e94387) — Yahoo

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