WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Institutional investor · Portfolio as of Q3 2020
Top Holdings343 positions
Stock | Shares | Value | Weight | Avg Buy | Est. P&L | Held | Conviction |
|---|---|---|---|---|---|---|---|
TAIWAN SEMICONDUCTOR SPONSORED ADR /1 ADR REPS 5 ORD SHS/ | 13.3M | $1.1B | 4.2% | $32.36 | +127.83% | 8 qtrssince 2018-Q4 | Decreased 0 |
STATE STREET SPDR S&P 500 ETF TRUST CL USD INC | 1.9M | $621.4M | 2.4% | $231.03 | +33.73% | 8 qtrssince 2018-Q4 | Decreased 0 |
HORIZON THERAPEUTICS PLC | 5.9M | $454.7M | 1.8% | — | — | 6 qtrssince 2019-Q2 | Decreased 0 |
AMAZON.COM INC | 135,947 | $428.1M | 1.7% | $84.93 | +85.14% | 8 qtrssince 2018-Q4 | Decreased 0 |
BWX TECHNOLOGIES INC | 7.5M | $423M | 1.6% | $37.51 | +40.36% | 8 qtrssince 2018-Q4 | Decreased 0 |
MERCADOLIBRE INC | 344,704 | $373.1M | 1.5% | $746.99 | +44.97% | 6 qtrssince 2019-Q2 | Decreased 0 |
TAL ED GROUP | 4.8M | $362.1M | 1.4% | $46.99 | +59.02% | 8 qtrssince 2018-Q4 | Decreased 0 |
CANADIAN NATL RAILWAY CO | 3.4M | $357.5M | 1.4% | $66.44 | +44.97% | 8 qtrssince 2018-Q4 | Decreased 0 |
SEA LTD-ADR | 2.1M | $330.1M | 1.3% | $80.67 | +92.34% | 6 qtrssince 2019-Q2 | Increased 69 |
GRAND CANYON ED INC | 4.1M | $324.2M | 1.3% | $92.66 | -11.94% | 8 qtrssince 2018-Q4 | Decreased 0 |
MICROSOFT CORP | 1.5M | $309M | 1.2% | $117.72 | +68.50% | 8 qtrssince 2018-Q4 | Decreased 0 |
ENCOMPASS HEALTH CORP | 4.7M | $303.8M | 1.2% | $45.30 | +4.03% | 8 qtrssince 2018-Q4 | Increased 50 |
NICE LTD - SPON ADR | 1.3M | $297.2M | 1.2% | $119.10 | +89.74% | 8 qtrssince 2018-Q4 | Decreased 0 |
LULULEMON ATHLETICA INC | 843,570 | $277.8M | 1.1% | $183.39 | +76.49% | 8 qtrssince 2018-Q4 | Decreased 0 |
BJ'S WHOLESALE CLUB HOLDINGS | 6.7M | $277.4M | 1.1% | $25.86 | +56.40% | 6 qtrssince 2019-Q2 | Decreased 0 |
MARTIN MARIETTA MATERIALS | 1.2M | $276.9M | 1.1% | $166.53 | +34.20% | 8 qtrssince 2018-Q4 | Decreased 0 |
NEBIUS GROUP NV | 4.2M | $275M | 1.1% | — | — | 8 qtrssince 2018-Q4 | Decreased 0 |
TREX INC | 3.8M | $274.9M | 1.1% | $50.08 | +41.34% | 8 qtrssince 2018-Q4 | Increased 76 |
ALPHABET INC-CL A | 178,949 | $262.3M | 1.0% | $55.36 | +31.42% | 8 qtrssince 2018-Q4 | Decreased 0 |
IRHYTHM TECHNOLOGIES INC | 1.1M | $255.1M | 1.0% | $69.15 | +237.78% | 4 qtrssince 2019-Q4 | Decreased 0 |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC manages $25.7B across 343 positions as of Q3 2020. Top holdings: TSM (4.2%), SPY (2.4%), HZNP (1.8%). Fund DNA: Steady Compounder. HoldingsIntel Rating: 2.5/5.0.
Active quarter - 27 new positions, 25 exits, 146 increased. Top move: TREX (INCREASED, conviction 76). Portfolio: $25.7B across 343 positions.
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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