WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Institutional investor · Portfolio as of Q3 2019
Top Holdings357 positions
ALIBABA GROUP HLDG LTD | 6M | $1B | 4.3% | $134.85 | +16.71% | 4 qtrssince 2018-Q4 | Increased 60 |
TAIWAN SEMICONDUCTOR-SP ADR | 17.3M | $805.1M | 3.4% | $31.96 | +28.37% | 4 qtrssince 2018-Q4 | Increased 62 |
SPDR S&P 500 ETF TRUST | 2.5M | $729.3M | 3.1% | $231.05 | +16.22% | 4 qtrssince 2018-Q4 | Increased 70 |
BWX TECHNOLOGIES INC | 7.1M | $408.9M | 1.7% | $36.48 | +44.70% | 4 qtrssince 2018-Q4 | Increased 50 |
| 7.2M | $381.8M | 1.6% | — | — | 4 qtrssince 2018-Q4 | Decreased 0 | |
TREX COMPANY INC | 3.7M | $333.2M | 1.4% | $31.39 | +44.82% | 4 qtrssince 2018-Q4 | Decreased 0 |
BURLINGTON STORES INC | 1.5M | $301.7M | 1.3% | $158.17 | +25.87% | 4 qtrssince 2018-Q4 | Decreased 0 |
CANADIAN NATL RAILWAY CO | 3.4M | $301.3M | 1.3% | $65.49 | +21.39% | 4 qtrssince 2018-Q4 | Decreased 0 |
ENCOMPASS HEALTH CORP | 4.7M | $294.3M | 1.3% | $45.11 | +3.01% | 4 qtrssince 2018-Q4 | Increased 57 |
EURONET WORLDWIDE INC | 2M | $289.9M | 1.2% | $102.38 | +42.90% | 4 qtrssince 2018-Q4 | Decreased 0 |
NETEASE INC-ADR | 1M | $279.2M | 1.2% | $41.82 | +9.54% | 4 qtrssince 2018-Q4 | Increased 57 |
MARTIN MARIETTA MATERIALS | 1M | $278.4M | 1.2% | $164.74 | +58.65% | 4 qtrssince 2018-Q4 | Increased 50 |
INSULET CORP | 1.6M | $270.6M | 1.2% | $84.53 | +95.11% | 4 qtrssince 2018-Q4 | Decreased 0 |
GRAND CANYON EDUCATION INC | 2.8M | $270.3M | 1.2% | $100.84 | -2.62% | 4 qtrssince 2018-Q4 | Increased 57 |
LIVE NATION ENTERTAINMENT IN | 3.9M | $261M | 1.1% | $48.24 | +37.52% | 4 qtrssince 2018-Q4 | Decreased 0 |
COPART INC | 3.2M | $261M | 1.1% | $11.95 | +68.12% | 4 qtrssince 2018-Q4 | Decreased 0 |
TRANSUNION | 3.1M | $250.5M | 1.1% | $55.28 | +39.44% | 4 qtrssince 2018-Q4 | Decreased 0 |
TORONTO-DOMINION BANK | 4.3M | $248.5M | 1.1% | $36.70 | +20.38% | 4 qtrssince 2018-Q4 | Decreased 0 |
TELEDYNE TECHNOLOGIES INC | 767,731 | $247.2M | 1.1% | $202.77 | +58.25% | 4 qtrssince 2018-Q4 | Decreased 0 |
LAMB WESTON HOLDINGS INC | 3.4M | $246.8M | 1.1% | $62.10 | +6.17% | 4 qtrssince 2018-Q4 | Increased 49 |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC manages $23.4B across 357 positions as of Q3 2019. Top holdings: BABA (4.3%), TSM (3.4%), SPY (3.1%). Fund DNA: Balanced Allocator. HoldingsIntel Score: 2.5/5.0.
Active quarter - 26 new positions, 41 exits, 154 increased. Top move: SPY (INCREASED, conviction 70). Portfolio: $23.4B across 357 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.
Similar Funds
Funds with similar investing DNA
Explore More
Accumulation Streaks
Positions with 2+ consecutive quarters of increases - persistent directional conviction.
Continue exploring
Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer
Verify source filings on SEC EDGAR