the tape · 2026-10-07BULL▼ -19.1%GLND▼ -9.7%GPRO▼ -7.6%MSTR▼ -6.8%CAT▼ -5.7%NBIS▼ -5.1%MU▲ +4.1%COIN▼ -3.9%ASTS▼ -3.9%VST▲ +3.9%SMCI▲ +3.4%AVAV▼ -3.3%GEV▼ -3.1%ARM▼ -2.7%LLY▲ +2.7%RDDT▲ +2.5%SPCX▼ -2.5%NEM▼ -2.4%META▼ -2.4%HPE▲ +2.3%

COST

Costco · 22 big moves · since May 2026
988935942.25Jul 15Oct 07
From the desk · Sep 24, 2026

Costco beat the number. Stock barely moved. That disconnect is the actual story. COST reported Q4 fiscal 2026 earnings above consensus — but membership fee revenue growth has now decelerated for the third straight quarter, and for Costco that's the only scorecard that matters. The retail margin is essentially zero by design — the entire business model is built to sell goods at near cost and harvest the annual membership fee, which is virtually pure profit. Three straight quarters of that engine slowing down, and a headline EPS beat starts looking like noise. Same-store sales held up, which tells you the consumer is still showing up. But what the stock needs is membership renewal and upgrade rates moving in the right direction. Flat after a beat is a polite question mark, not an answer.

Every move of 1.5% or more
2026-09-30 · Yahoo Finance

-1.5% — Costco shoppers are changing in a way the retailer cannot ignore

T+1 +0.5%T+5 +3.5%T+20 — pending
2026-09-25 · Yahoo Finance

+2.9% — How Costco is keeping shoppers coming back as K-shaped economy widens

T+1 +0.0%T+5 -0.2%T+20 — pending
2026-09-15 · Yahoo Finance

-1.9% — Costco raises motor oil prices as supply pressure builds

T+1 -0.8%T+5 -0.2%T+20 — pending
2026-09-14 · Yahoo Finance

+1.6% — Costco (COST) Gains As Market Dips: What You Should Know

T+1 -1.9%T+5 -2.2%T+20 — pending
2026-08-27 · Yahoo Finance

-2.2% — Costco (COST) Stock Drops Despite Market Gains: Important Facts to Note

T+1 +1.2%T+5 -1.0%T+20 -1.3%
2026-08-24 · Yahoo Finance

+2.5% — Costco fights customer’s tariff suit as refunds flow in

T+1 -1.2%T+5 -2.8%T+20 -7.4%
2026-08-20 · no single source

-2.5% — Moved with the tape — no single reported reason that day.

T+1 +1.5%T+5 +0.1%T+20 -4.1%
2026-07-30 · no single source

-2.0% — Moved with the tape — no single reported reason that day.

T+1 -0.2%T+5 -0.5%T+20 -2.0%
2026-07-28 · no single source

+1.6% — Moved with the tape — no single reported reason that day.

T+1 +0.8%T+5 -1.9%T+20 -0.7%
2026-07-27 · no single source

+1.8% — Moved with the tape — no single reported reason that day.

T+1 +1.6%T+5 +0.3%T+20 +2.1%
2026-07-16 · no single source

+3.2% — Moved with the tape — no single reported reason that day.

T+1 -0.5%T+5 -2.1%T+20 +1.7%
2026-07-09 · no single source

-4.2% — Moved with the tape — no single reported reason that day.

T+1 +0.4%T+5 +3.6%T+20 +4.0%
2026-07-02 · no single source

+2.9% — Moved with the tape — no single reported reason that day.

T+1 -0.1%T+5 -3.7%T+20 +0.0%
2026-06-25 · no single source

-2.0% — Moved with the tape — no single reported reason that day.

T+1 +1.1%T+5 +1.0%T+20 -0.8%
2026-06-17 · no single source

-2.1% — Moved with the tape — no single reported reason that day.

T+1 -1.5%T+5 -2.4%T+20 -2.6%
2026-06-10 · no single source

+1.5% — Moved with the tape — no single reported reason that day.

T+1 -0.8%T+5 -1.8%T+20 -6.8%
2026-05-29 · no single source

-3.9% — Moved with the tape — no single reported reason that day.

T+1 -1.1%T+5 +1.6%T+20 -1.0%
2026-05-26 · no single source

-2.5% — Moved with the tape — no single reported reason that day.

T+1 +0.1%T+5 -4.9%T+20 -4.2%
2026-05-22 · no single source

-2.1% — Moved with the tape — no single reported reason that day.

T+1 -2.5%T+5 -8.0%T+20 -6.9%
2026-05-21 · no single source

-2.2% — Moved with the tape — no single reported reason that day.

T+1 -2.1%T+5 -9.0%T+20 -9.4%
2026-05-20 · no single source

-1.9% — Moved with the tape — no single reported reason that day.

T+1 -2.2%T+5 -7.3%T+20 -11.4%

The brief, in your inbox

One email every market morning. What moved, why, and what happened after.