BLAIR WILLIAM & CO/IL
Institutional investor · Portfolio as of Q1 2025
Top Holdings1,801 positions
Stock | Shares | Value | Weight | Avg Buy | Est. P&L | Held | Conviction |
|---|---|---|---|---|---|---|---|
MICROSOFT CORP | 3.8M | $1.4B | 4.3% | $123.66 | +204.69% | 26 qtrssince 2018-Q4 | Decreased 0 |
APPLE INC | 6.2M | $1.4B | 4.1% | $103.22 | +113.89% | 26 qtrssince 2018-Q4 | Decreased 0 |
AMAZON.COM INC | 6.2M | $1.2B | 3.5% | $113.46 | +69.86% | 26 qtrssince 2018-Q4 | Decreased 0 |
VISA INC-CLASS A SHARES | 2M | $713.8M | 2.2% | $129.63 | +167.30% | 26 qtrssince 2018-Q4 | Decreased 0 |
NVIDIA CORP | 5.4M | $583.1M | 1.8% | $115.96 | -5.45% | 26 qtrssince 2018-Q4 | Increased 53 |
JPMORGAN CHASE & CO | 2.3M | $568.9M | 1.7% | $104.71 | +127.27% | 26 qtrssince 2018-Q4 | Decreased 0 |
MASTERCARD INC - A | 1M | $559.5M | 1.7% | $200.68 | +167.84% | 26 qtrssince 2018-Q4 | Decreased 0 |
COSTCO WHOLESALE CORP | 548,899 | $519.1M | 1.6% | $309.80 | +202.70% | 26 qtrssince 2018-Q4 | Decreased 0 |
ALPHABET INC-CL C | 3.2M | $502.4M | 1.5% | $95.36 | +63.20% | 26 qtrssince 2018-Q4 | Decreased 0 |
STATE STREET SPDR S&P 500 ETF TRUST CL USD INC | 854,383 | $477.9M | 1.4% | $323.49 | +70.29% | 26 qtrssince 2018-Q4 | Increased 51 |
IDEXX LABORATORIES INC | 1.1M | $458.1M | 1.4% | $189.63 | +119.30% | 26 qtrssince 2018-Q4 | Decreased 0 |
FISERV INC | 2M | $439.5M | 1.3% | $95.63 | +126.02% | 26 qtrssince 2018-Q4 | Decreased 0 |
PROGRESSIVE CORP | 1.5M | $431M | 1.3% | $90.99 | +187.83% | 26 qtrssince 2018-Q4 | Decreased 0 |
WATSCO INC | 814,712 | $414.1M | 1.2% | $178.99 | +171.48% | 26 qtrssince 2018-Q4 | Increased 52 |
ALPHABET INC-CL A | 2.6M | $399.6M | 1.2% | $101.46 | +51.68% | 26 qtrssince 2018-Q4 | Decreased 0 |
STRYKER CORP | 926,375 | $344.8M | 1.0% | $180.55 | +100.03% | 26 qtrssince 2018-Q4 | Decreased 0 |
META PLATFORMS INC-CLASS A | 551,158 | $317.7M | 1.0% | $369.85 | +55.59% | 26 qtrssince 2018-Q4 | Increased 59 |
ZOETIS INC | 1.9M | $311.6M | 0.9% | $91.73 | +74.93% | 26 qtrssince 2018-Q4 | Decreased 0 |
UBER TECHNOLOGIES INC | 4.2M | $309.6M | 0.9% | $50.98 | +42.69% | 24 qtrssince 2019-Q2 | Increased 46 |
INTERCONTINENTALEXCHANGE GRO COM | 1.8M | $306.1M | 0.9% | $73.64 | +135.26% | 26 qtrssince 2018-Q4 | Decreased 0 |
BLAIR WILLIAM & CO/IL manages $33.2B across 1801 positions as of Q1 2025. Top holdings: MSFT (4.3%), AAPL (4.1%), AMZN (3.5%). Fund DNA: Balanced Allocator. HoldingsIntel Rating: 4.5/5.0.
Active quarter - 82 new positions, 97 exits, 631 increased. Top move: META (INCREASED, conviction 59). Portfolio: $33.2B across 1801 positions.
Top holdings by portfolio weight
Portfolio allocation by GICS sector
Behavioral investing profile
Position Outcomes
Best and worst performing positions by estimated return
Top Winners
Top Losers
Cost basis estimates based on full filing history using quarter-end prices. Actual transaction prices are not disclosed in 13F filings.
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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer