COST
Quarter 2026Q2 · COSTCO WHOLESALE CORPORATION · CUSIP 22160K105
Size · Holdings
$17.3B
#52 · 17 Holders
Total market value held across tracked managers.
Force · Net Flow
$7.8B
#25 · estimated
This quarter's net buying (est. Σ share change × current price).
Consensus · Breadth
+1
7▲ 6▼ · 1 New
Net-buying groups minus net-selling groups (related filers count once).
Who's adding
norges+$6.1B
marshall_wace+$852M
citadel+$632M
millennium+$274M
aqr+$211M
two_sigma+$115M
gotham+$6M
Who's trimming
bridgewater-$1M
russo-$1M
gamco-$2M
rentec-$19M
capital_group-$141M
point72-$169M
Compiled from public SEC 13F-HR filings for a sample of 64 tracked institutions — NOT the whole market. 13F covers long US-listed equity only (no shorts, derivatives, or non-US holdings) and lags ~45 days. Net flow is estimated from share changes × current-quarter price. Institutional-behavior observation, not investment advice.