CenterBook Partners LP
Sector Allocation
- Technology36.4%$740.5M
- Healthcare15.0%$306.0M
- Financials10.8%$220.0M
- Industrials10.7%$218.3M
- Consumer Discretionary8.1%$164.1M
- Materials5.2%$106.3M
- Communication Services5.1%$103.6M
- Energy3.4%$69.9M
- Consumer Staples2.2%$44.5M
- Utilities1.6%$33.5M
AUM History
13fpro.ai/research/fund/centerbook-partners-lp-1872738
Conviction and streaks
Concentrating · top 10 = 18.1%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q2 2026
AMZN
$50.0MGOOGL
$45.8MMETA
$42.7MMSFT
$39.1MNVDA
$35.7MTSM
$34.2MV
$33.3MTXN
$30.3MAAPL
$28.4MBRK.B
$28.1MLLY
$27.7MMA
$26.3MAVGO
$25.9MNFLX
$25.4MBNTX
$23.4MJPM
$22.6MLITE
$21.6MAMD
$21.1M
SPCX$20.7MMU
$17.5M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/centerbook-partners-lp-1872738
CenterBook Partners LP 13F holdings — Q2 2026
$2.0B portfolio (+9.4% QoQ) · 693 holdings · Q2 2026 13F · top 10 are 18% of the stock portfolio
$50.0M
2.5% of stocks
+18%This quarter-8.5%Since filed10+ qtrsHeld$45.8M
2.3% of stocks
-2%This quarter-8.4%Since filed10+ qtrsHeld$42.7M
2.1% of stocks
+23%This quarter+5.3%Since filed10+ qtrsHeld$39.1M
1.9% of stocks
-0.2%This quarter+5.7%Since filed10+ qtrsHeld$35.7M
1.8% of stocks
+19%This quarter-0.7%Since filed8 qtrsHeld$34.2M
1.7% of stocks
-13%This quarter+0.6%Since filed8 qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialTrimmed 2 qtrs in a row$33.3M
1.6% of stocks
+23%This quarter+11.4%Since filed10+ qtrsHeld$30.3M
1.5% of stocks
+164%This quarter+6.0%Since filed8 qtrsHeld$28.4M
1.4% of stocks
+11%This quarter+12.8%Since filed10+ qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialAdded 2 qtrs in a row$28.1M
1.4% of stocks
+14%This quarter—Since filed8 qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialAdded 3 qtrs in a row
All holdings — CenterBook Partners LP (Q2 2026)
693 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | ELI LILLY & Co | Healthcare | $27.7M | 1.4% | 23K | -21% | 3 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | Mastercard Inc | Financials | $26.3M | 1.3% | 51K | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 13 | Broadcom Inc. | Technology | $25.9M | 1.3% | 68K | +7% | 2 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | NETFLIX INC | Communication Services | $25.4M | 1.3% | 355K | +1609% | 10+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | BioNTech SEadr | Healthcare | $23.4M | 1.1% | 251K | +47% | 9 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | JPMORGAN CHASE & CO | Financials | $22.6M | 1.1% | 69K | +2% | 2 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | Lumentum Holdings Inc. | Technology | $21.6M | 1.1% | 25K | +1594% | 3 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | ADVANCED MICRO DEVICES INC | Technology | $21.1M | 1.0% | 36K | -61% | 5 qtrsTrimmed 3 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | $SPCX | SPACE EXPLORATION TECHNOLOGIES CORP | Technology | $20.7M | 1.0% | 121K | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F |
| 20 | MICRON TECHNOLOGY INC | Technology | $17.5M | 0.9% | 15K | +188% | 2 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | Palantir Technologies Inc. | Technology | $15.8M | 0.8% | 135K | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | Powerfleet, Inc. | Technology | $15.7M | 0.8% | 4.11M | +19% | 9 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | FTAI Aviation Ltd. | Industrials | $14.9M | 0.7% | 55K | +65% | 2 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | EchoStar CORP | Communication Services | $13.7M | 0.7% | 135K | +991% | 4 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | USA TODAY Co., Inc. | Communication Services | $13.6M | 0.7% | 1.59M | New | 1 qtr | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $ROST | ROSS STORES, INC. | Consumer Discretionary | $13.5M | 0.7% | 64K | +5093% | |||
| 27 | $LEGN | Legend Biotech Corp | Healthcare | $13.1M | 0.6% | 453K | +121% | |||
| 28 | $DOCN | DigitalOcean Holdings, Inc. | Technology | $13.0M | 0.6% | 83K | +725% | |||
| 29 | $AEIS | ADVANCED ENERGY INDUSTRIES INC | Technology | $12.4M | 0.6% | 33K | +3349% | |||
| 30 | $ENVX | Enovix Corp | Technology | $12.4M | 0.6% | 2.04M | -31% | |||
| 31 | $ADI | ANALOG DEVICES INC | Technology | $11.2M | 0.6% | 28K | +684% | |||
| 32 | $PFE | PFIZER INC | Healthcare | $11.1M | 0.5% | 459K | +210% | |||
| 33 | $INSM | INSMED Inc | Healthcare | $11.0M | 0.5% | 103K | +193% | |||
| 34 | $FN | Fabrinet | Technology | $10.8M | 0.5% | 19K | +193% | |||
| 35 | $AESI | Atlas Energy Solutions Inc. | Energy | $10.6M | 0.5% | 639K | -31% | |||
| 36 | $TJX | TJX COMPANIES INC /DE/ | Consumer Discretionary | $10.5M | 0.5% | 69K | +47% | |||
| 37 | $MCHP | MICROCHIP TECHNOLOGY INC | Technology | $10.3M | 0.5% | 113K | +139% | |||
| 38 | $DAR | DARLING INGREDIENTS INC. | Consumer Staples | $10.1M | 0.5% | 184K | +204% | |||
| 39 | $MLYS | Mineralys Therapeutics, Inc. | Healthcare | $9.9M | 0.5% | 366K | +309% | |||
| 40 | $WEAV | Weave Communications, Inc. | Technology | $9.9M | 0.5% | 1.65M | +41% | |||
| 41 | $UBER | Uber Technologies, Inc | Technology | $9.8M | 0.5% | 136K | +15% | |||
| 42 | $UROY.R1711570 | Uranium Royalty Corp. | Financials | $9.7M | 0.5% | 3.49M | -1% | |||
| 43 | $REGN | REGENERON PHARMACEUTICALS, INC. | Healthcare | $9.7M | 0.5% | 15K | +206% | |||
| 44 | $EQX | Equinox Gold Corp. | Materials | $9.6M | 0.5% | 992K | +69% | |||
| 45 | $METC | Ramaco Resources, Inc. | Energy | $9.6M | 0.5% | 728K | +216% | |||
| 46 | $ARHS | Arhaus, Inc. | Consumer Discretionary | $9.4M | 0.5% | 1.12M | -43% | |||
| 47 | $NU | Nu Holdings Ltd. | Financials | $9.3M | 0.5% | 696K | +183% | |||
| 48 | $FIP | FTAI Infrastructure Inc. | Industrials | $9.1M | 0.5% | 1.96M | +46% | |||
| 49 | $LODE | Comstock Inc. | Materials | $9.0M | 0.4% | 2.17M | New | |||
| 50 | $GENI | Genius Sports Ltd | Communication Services | $8.9M | 0.4% | 1.48M | +1385% | |||
| 51 | $OLN | OLIN Corp | Healthcare | $8.8M | 0.4% | 442K | +135% | |||
| 52 | $PRIM | Primoris Services Corp | Energy | $8.6M | 0.4% | 86K | New | |||
| 53 | $TLN | Talen Energy Corp | Utilities | $8.6M | 0.4% | 22K | +27% | |||
| 54 | $ASML | ASML HOLDING NV | Technology | $8.4M | 0.4% | 4,231 | -60% | |||
| 55 | $GSM | Ferroglobe PLC | Materials | $8.2M | 0.4% | 2.57M | +174% | |||
| 56 | $GPCR | Structure Therapeutics Inc. | Healthcare | $7.9M | 0.4% | 148K | +597% | |||
| 57 | $WEX | WEX Inc. | Industrials | $7.9M | 0.4% | 56K | +461% | |||
| 58 | $LPTH | LIGHTPATH TECHNOLOGIES INC | Technology | $7.8M | 0.4% | 479K | New | |||
| 59 | $RY | ROYAL BANK OF CANADA | Financials | $7.7M | 0.4% | 37K | -23% | |||
| 60 | $VERA | Vera Therapeutics, Inc. | Healthcare | $7.7M | 0.4% | 179K | +85% | |||
| 61 | $CELH | Celsius Holdings, Inc. | Consumer Staples | $7.4M | 0.4% | 253K | New | |||
| 62 | $IONS | IONIS PHARMACEUTICALS INC | Healthcare | $7.1M | 0.3% | 89K | -41% | |||
| 63 | $EVLV | Evolv Technologies Holdings, Inc. | Technology | $7.1M | 0.3% | 1.22M | -11% | |||
| 64 | $CCOI | COGENT COMMUNICATIONS HOLDINGS, INC. | Communication Services | $7.0M | 0.3% | 503K | +2% | |||
| 65 | $AMTM | Amentum Holdings, Inc. | Industrials | $6.8M | 0.3% | 329K | +129% | |||
| 66 | $GRPN | Groupon, Inc. | Communication Services | $6.8M | 0.3% | 282K | -40% | |||
| 67 | $SNOW | Snowflake Inc. | Technology | $6.8M | 0.3% | 27K | -37% | |||
| 68 | $ON | ON SEMICONDUCTOR CORP | Technology | $6.8M | 0.3% | 71K | New | |||
| 69 | $STLN | Starling Oncology, Inc. | Healthcare | $6.7M | 0.3% | 1.24M | -21% | |||
| 70 | $FTK | FLOTEK INDUSTRIES INC/CN/ | Materials | $6.7M | 0.3% | 286K | +905% | |||
| 71 | $TKO | TKO Group Holdings, Inc. | Communication Services | $6.7M | 0.3% | 33K | -50% | |||
| 72 | $NESR | National Energy Services Reunited Corp. | Energy | $6.7M | 0.3% | 223K | -27% | |||
| 73 | $USPH | U S PHYSICAL THERAPY INC /NV | Healthcare | $6.7M | 0.3% | 97K | +109% | |||
| 74 | $GLNG | GOLAR LNG LTD | Industrials | $6.5M | 0.3% | 130K | +293% | |||
| 75 | $MWH | SOLV Energy, Inc. | Industrials | $6.4M | 0.3% | 189K | New | |||
| 76 | $CME | CME GROUP INC. | Financials | $6.4M | 0.3% | 29K | +531% | |||
| 77 | $PACK | Ranpak Holdings Corp. | Materials | $6.4M | 0.3% | 876K | -52% | |||
| 78 | $JSM | NAVIENT CORP | Financials | $6.3M | 0.3% | 741K | New | |||
| 79 | $REAX.R1862461 | Real Brokerage Inc | Real Estate | $6.3M | 0.3% | 3.44M | +9% | |||
| 80 | $AZ | A2Z CUST2MATE SOLUTIONS CORP. | Industrials | $6.2M | 0.3% | 1.07M | +2273% | |||
| 81 | $GDOT | GREEN DOT CORP | Financials | $6.2M | 0.3% | 459K | -57% | |||
| 82 | $CSCO | CISCO SYSTEMS, INC. | Technology | $6.2M | 0.3% | 53K | -57% | |||
| 83 | $AMAT | APPLIED MATERIALS INC /DE | Technology | $6.2M | 0.3% | 8,510 | -86% | |||
| 84 | $FLEX | FLEX LTD. | Technology | $6.1M | 0.3% | 38K | +552% | |||
| 85 | $JBI | Janus International Group, Inc. | Industrials | $6.1M | 0.3% | 1.10M | +22% | |||
| 86 | $FSLR | FIRST SOLAR, INC. | Technology | $6.1M | 0.3% | 26K | -46% | |||
| 87 | $FIX | COMFORT SYSTEMS USA INC | Industrials | $6.1M | 0.3% | 3,061 | +269% | |||
| 88 | $EPAC | ENERPAC TOOL GROUP CORP | Industrials | $6.1M | 0.3% | 169K | +202% | |||
| 89 | $AKAM | AKAMAI TECHNOLOGIES INC | Industrials | $6.0M | 0.3% | 51K | +115% | |||
| 90 | $MCD | MCDONALDS CORP | Consumer Discretionary | $5.9M | 0.3% | 22K | New | |||
| 91 | $HNRG | HALLADOR ENERGY CO | Utilities | $5.9M | 0.3% | 341K | -19% | |||
| 92 | $AMPL | Amplitude, Inc. | Technology | $5.9M | 0.3% | 771K | +1785% | |||
| 93 | $PRM | Perimeter Solutions, Inc. | Healthcare | $5.8M | 0.3% | 162K | New | |||
| 94 | $VRT | Vertiv Holdings Co | Technology | $5.7M | 0.3% | 17K | +865% | |||
| 95 | $SWIM | Latham Group, Inc. | Materials | $5.7M | 0.3% | 879K | +6% | |||
| 96 | $SXT | SENSIENT TECHNOLOGIES CORP | Materials | $5.7M | 0.3% | 46K | +542% | |||
| 97 | $NXPI | NXP Semiconductors N.V. | Technology | $5.7M | 0.3% | 20K | +1012% | |||
| 98 | $PUBM | PubMatic, Inc. | Technology | $5.4M | 0.3% | 414K | -76% | |||
| 99 | — | ONTERRIS INC - COM | — | $5.3M | 0.3% | 264K | +88% | |||
| 100 | $ACMR | ACM Research, Inc. | Technology | $5.3M | 0.3% | 41K | New | |||
| 101 | $AADX | Applied Aerospace & Defense, Inc. | Industrials | $5.2M | 0.3% | 229K | New | |||
| 102 | $MANE | Veradermics, Inc | Healthcare | $5.2M | 0.3% | 42K | New | |||
| 103 | $ACVA | ACV Auctions Inc. | Industrials | $5.2M | 0.3% | 719K | -15% | |||
| 104 | $PRCT | PROCEPT BioRobotics Corp | Healthcare | $5.1M | 0.3% | 225K | +327% | |||
| 105 | $AEVA | Aeva Technologies, Inc. | Industrials | $5.0M | 0.3% | 176K | New | |||
| 106 | $BKTI | BK Technologies Corp | Technology | $5.0M | 0.3% | 59K | +29% | |||
| 107 | $NOW | ServiceNow, Inc. | Technology | $5.0M | 0.2% | 50K | +49% | |||
| 108 | $INV | Innventure, Inc. | Financials | $5.0M | 0.2% | 979K | +15% | |||
| 109 | $LMB | Limbach Holdings, Inc. | Industrials | $5.0M | 0.2% | 64K | New | |||
| 110 | $TEAM | Atlassian Corp | Technology | $5.0M | 0.2% | 64K | New | |||
| 111 | $PGNY | Progyny, Inc. | Healthcare | $4.9M | 0.2% | 170K | -81% | |||
| 112 | $COHR | COHERENT CORP. | Technology | $4.8M | 0.2% | 12K | +20% | |||
| 113 | $IA | INNOVATIVE SOLUTIONS & SUPPORT INC | Technology | $4.8M | 0.2% | 265K | New | |||
| 114 | $GDYN | GRID DYNAMICS HOLDINGS, INC. | Technology | $4.7M | 0.2% | 825K | +5% | |||
| 115 | $MBUU | MALIBU BOATS, INC. | Industrials | $4.6M | 0.2% | 169K | +255% | |||
| 116 | $ABVX | Abivax S.A. | Healthcare | $4.5M | 0.2% | 34K | +301% | |||
| 117 | $MCHB | Mechanics Bancorp | Financials | $4.5M | 0.2% | 281K | -45% | |||
| 118 | $XPOF | Xponential Fitness, Inc. | Communication Services | $4.3M | 0.2% | 628K | -31% | |||
| 119 | $IBRX | ImmunityBio, Inc. | Healthcare | $4.3M | 0.2% | 496K | New | |||
| 120 | $FWONA | Liberty Media Corp | Communication Services | $4.3M | 0.2% | 45K | -39% | |||
| 121 | $RIGL | RIGEL PHARMACEUTICALS INC | Healthcare | $4.3M | 0.2% | 110K | New | |||
| 122 | $SHLS | Shoals Technologies Group, Inc. | Technology | $4.2M | 0.2% | 426K | -79% | |||
| 123 | $GILD | GILEAD SCIENCES, INC. | Healthcare | $4.1M | 0.2% | 33K | New | |||
| 124 | $SOC | Sable Offshore Corp. | Energy | $4.0M | 0.2% | 1.30M | New | |||
| 125 | $NBIS | Nebius Group N.V. | Technology | $4.0M | 0.2% | 14K | -56% | |||
| 126 | $TGLS | Tecnoglass Holdings Inc. | Materials | $3.9M | 0.2% | 84K | +212% | |||
| 127 | $SITM | SITIME Corp | Technology | $3.9M | 0.2% | 5,235 | +239% | |||
| 128 | $FCEL | FUELCELL ENERGY INC | Technology | $3.9M | 0.2% | 108K | -89% | |||
| 129 | $BKV | BKV Corp | Energy | $3.9M | 0.2% | 141K | -30% | |||
| 130 | $UBS | UBS Group AG | Financials | $3.9M | 0.2% | 78K | -10% | |||
| 131 | $SNDA | SONIDA SENIOR LIVING, INC. | Healthcare | $3.9M | 0.2% | 94K | -28% | |||
| 132 | $PLAY | Dave & Buster's Entertainment, Inc. | Consumer Discretionary | $3.8M | 0.2% | 335K | -67% | |||
| 133 | $ERII | Energy Recovery, Inc. | Industrials | $3.8M | 0.2% | 421K | +55% | |||
| 134 | $MICC | Magnum Ice Cream Co N.V. | Consumer Staples | $3.7M | 0.2% | 213K | New | |||
| 135 | $KTOS | KRATOS DEFENSE & SECURITY SOLUTIONS, INC. | Industrials | $3.7M | 0.2% | 74K | New | |||
| 136 | $COMP | Compass, Inc. | Real Estate | $3.7M | 0.2% | 299K | -52% | |||
| 137 | $SMWB | SIMILARWEB LTD. | Technology | $3.7M | 0.2% | 600K | -55% | |||
| 138 | $ALNY | ALNYLAM PHARMACEUTICALS, INC. | Healthcare | $3.7M | 0.2% | 12K | New | |||
| 139 | $CODI | Compass Diversified Holdings | Consumer Discretionary | $3.6M | 0.2% | 342K | -51% | |||
| 140 | $JMIA | Jumia Technologies AG | Consumer Discretionary | $3.6M | 0.2% | 516K | +145% | |||
| 141 | $TSAT | Telesat Corp | Communication Services | $3.6M | 0.2% | 72K | New | |||
| 142 | $CLBT | Cellebrite DI Ltd. | Technology | $3.4M | 0.2% | 236K | +32% | |||
| 143 | $FDX | FEDEX CORP | Industrials | $3.4M | 0.2% | 11K | +97% | |||
| 144 | $WBS | WEBSTER FINANCIAL CORP | Financials | $3.4M | 0.2% | 44K | New | |||
| 145 | $ANET | Arista Networks, Inc. | Technology | $3.4M | 0.2% | 20K | New | |||
| 146 | $BMY | BRISTOL MYERS SQUIBB CO | Healthcare | $3.4M | 0.2% | 58K | +3% | |||
| 147 | $TPB | Turning Point Brands, Inc. | Consumer Staples | $3.3M | 0.2% | 39K | New | |||
| 148 | $QXO | QXO, Inc. | Consumer Discretionary | $3.3M | 0.2% | 192K | +1287% | |||
| 149 | $OTIS | Otis Worldwide Corp | Industrials | $3.3M | 0.2% | 46K | New | |||
| 150 | $EXTR | EXTREME NETWORKS INC | Technology | $3.3M | 0.2% | 102K | -15% |
What changed in Q2 2026
Against the previous quarter's 13F: 278 new, 173 added to, 242 trimmed, 213 sold out. Share-count changes; largest moves by dollar size first.
New positions (278)
first bought this quarter
- $SPCXSPACE EXPLORATION TECHNOLOGIES CORP$20.7M
first bought this quarter
$PLTRPalantir Technologies Inc.$15.8M
first bought this quarter
$TDAYUSA TODAY Co., Inc.$13.6M
first bought this quarter
$LODEComstock Inc.$9.0M
first bought this quarter
$PRIMPrimoris Services Corp$8.6M
first bought this quarter
+272 more in the Excel export
Added to (173)
now $25.4M · held 10+ qtrs
now $21.6M · held 3 qtrs
now $30.3M · held 8 qtrs
$ROSTROSS STORES, INC.+5093%
now $13.5M · held 2 qtrs, 2 adds in a row
$ECHOEchoStar CORP+991%
now $13.7M · held 4 qtrs, 2 adds in a row
$AEISADVANCED ENERGY INDUSTRIES INC+3349%
now $12.4M · held 7 qtrs
+167 more in the Excel export
Trimmed (242)
$AMATAPPLIED MATERIALS INC /DE-86%
now $6.2M · held 3 qtrs
now $21.1M · held 5 qtrs, 3 trims in a row
$FCELFUELCELL ENERGY INC-89%
now $3.9M · held 3 qtrs, 2 trims in a row
$XMTRXometry, Inc.-92%
now $2.1M
$APHAMPHENOL CORP /DE/-97%
now $868K
$INTCINTEL CORP-94%
now $1.4M
+236 more in the Excel export
Holdings by quarter
Every 13F CenterBook Partners LP has filed, 18 earlier quarters. Pick one to see what it held then.
Is it too late to follow CenterBook Partners?
Q2 2026 13F filed with the SEC on Aug 11, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of CenterBook Partners's top 20 holdings: 78/100 (our AI quality score, weighted by position size; 17 of the 20 are scored)
Top 10 since filing
+1.6%
Value-weighted move of the 10 largest stock positions
Turnover
47%
Last quarter; 174% over the last 4
Top 10 weight
18%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
48%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q1 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
CenterBook Partners LP disclosed 693 positions worth $2.0B in its Form 13F-HR for Q2 2026, led by $AMZN (AMAZON COM INC) at 2.5% of the equity portfolio, followed by $GOOGL and $META. During the quarter the fund opened 278 new positions and exited 213 — including a new stake in $MA and a full exit from $HD. The portfolio is most concentrated in Technology (36.4% of disclosed assets). All figures are sourced directly from CenterBook Partners LP’s Form 13F-HR filing with the SEC under CIK 1872738.
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AI-Powered Hedge Fund Analysis: CenterBook Partners LP
13F Pro is an AI hedge fund tracker and stock research platform. For CenterBook Partners LP (SEC CIK: 1872738), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.
Every holding in CenterBook Partners LP's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.