ARK Invest

Q4 2017 13F · by Cathie Wood, CIO

As of: Dec 31, 2017
Filed: Feb 12, 2018
US stock: $1.3B · prev $819M
Positions: 200 · prev 145
Options notional: $0
Documents: 1· no amendments

Picture93.4% US stock

Full picture · of what this 13F reports is US stock

US stock listed on a US exchange 93.4%
Foreign stock not listed in the US 6.6%
Notes debt, at principal 0.0%
Puts at notional value 0.0%
Calls at notional value 0.0%

Moves209 since the prior filing

+8.0 pp in · −8.0 pp out

New 67 +2.29 pp
Added 115 +5.72 pp
Trimmed 15 −6.42 pp
Exited 12 −1.60 pp

The book

Diversified · behaves like 49 equal-sized positions

Very concentrated
Concentrated
Focused
Diversified

Low turnover · 14% a year, about 6.9 years per position

Low
Moderate
High

Top 5 positions20% of US stock

SSYS Stratasys Inc (ISRAEL) added−0.01 pp added−0.014.4%
TWTR Twitter, Inc. added+0.87 pp added+0.874.2%
AMZN Amazon.Com Inc added−0.15 pp added−0.154.1%
1885807D Athenahealth Inc added+0.32 pp added+0.324.0%
TSLA Tesla, Inc. added+0.85 pp added+0.853.5%

Positions200 in this filing · 12 exited


SSYSStratasys Inc (ISRAEL)	4.39%	2,761,525	$55M	added+77%	−0.01 pp	5 q
TWTRTwitter, Inc.	4.24%	2,215,686	$53M	added+35%	+0.87 pp	5 q
AMZNAmazon.Com Inc	4.12%	44,285	$52M	added+22%	−0.15 pp	5 q
1885807DAthenahealth Inc	4.02%	379,439	$50M	added+55%	+0.32 pp	5 q
TSLATesla, Inc.	3.49%	140,900	$44M	added×2.2	+0.85 pp	5 q
ILMNIllumina Inc	2.89%	166,109	$36M	added+32%	−0.18 pp	5 q
BIDUBaidu, Inc.	2.81%	150,481	$35M	added+57%	−0.08 pp	5 q
EDITEditas Medicine, Inc.	2.72%	1,112,845	$34M	added+62%	+0.70 pp	4 q
unresolvedJuno Therapeutics Inc	2.48%	682,495	$31M	added+31%	−0.37 pp	5 q
NVDANvidia Corp	2.43%	157,649	$31M	trimmed−3%	−1.10 pp	5 q
GOOGAlphabet Inc. Class C	2.28%	27,387	$29M	added+49%	+0.12 pp	5 q
JDJD.com, Inc.	2.24%	677,913	$28M	added×30.4	+2.14 pp	2 q
NFLXNetFlix Inc	2.13%	139,238	$27M	added+47%	+0.03 pp	5 q
NTLAIntellia Therapeutics, Inc	2.11%	1,375,149	$26M	added×3.7	+0.98 pp	5 q
LCHappen, Inc.	1.91%	5,811,387	$24M	added×2.7	+0.30 pp	5 q
unresolved2U Inc	1.88%	366,736	$24M	added+28%	−0.08 pp	5 q
XYZBlock, Inc.	1.87%	676,779	$23M	added×2.1	+0.72 pp	5 q
CRMSalesforce, Inc.	1.85%	227,803	$23M	added+43%	+0.03 pp	5 q
TCEHYTencent Hldgs UNSP/	1.76%	424,860	$22M	added+43%	+0.17 pp	2 q
unresolvedBluebird Bio Inc	1.72%	121,462	$22M	trimmed−10%	−0.54 pp	5 q
METAMeta Platforms, Inc. Class A	1.65%	117,138	$21M	added+35%	−0.16 pp	5 q
MDSOMedidata Solutions, Inc.	1.65%	326,079	$21M	added×3.1	+0.66 pp	5 q
AAPLApple Inc.	1.62%	120,157	$20M	added×2.1	+0.55 pp	4 q
SPLKSplunk Inc	1.61%	244,377	$20M	trimmed−3%	−0.44 pp	5 q
SFTBYSoftbank Grp UNSP/	1.54%	486,580	$19M	added+92%	+0.28 pp	2 q
NVTAInvitae Corporation	1.52%	2,104,798	$19M	added+44%	−0.15 pp	5 q
XLNXXilinx Inc	1.51%	281,568	$19M	added+32%	−0.34 pp	5 q
IONSIonis Pharmaceuticals, Inc.	1.49%	370,835	$19M	added+50%	−0.04 pp	5 q
RHTRed Hat Inc	1.49%	155,671	$19M	added+80%	+0.32 pp	5 q
HDP1Hortonworks Inc	1.48%	921,786	$19M	added+3%	−0.37 pp	5 q
RDFNRedfin Corporation	1.42%	570,449	$18M	added×2.1	+0.60 pp	2 q
unresolvedFoundation Medicine	1.41%	258,685	$18M	trimmed−17%	−0.12 pp	5 q
PRLBProto Labs, Inc.	1.38%	168,121	$17M	trimmed−15%	−0.55 pp	5 q
BABAAlibaba Group Holding Limited	1.32%	95,952	$17M	added+56%	+0.02 pp	5 q
MCRBSeres Therapeutics, Inc.	1.31%	1,625,501	$16M	added+82%	−0.44 pp	5 q
TREELendingTree, Inc.	1.18%	43,505	$15M	added+13%	+0.03 pp	5 q
ADSKAutodesk Inc	1.08%	128,998	$14M	added×4.5	+0.69 pp	5 q
9991429DAptiv Irish Holdings Ltd	1.07%	157,806	$13M	new	+1.07 pp	new
TERTeradyne, Inc.	1.02%	306,909	$13M	added+29%	−0.06 pp	5 q
CERSCerus Corp	0.96%	3,564,373	$12M	added+33%	+0.07 pp	5 q
MELIMercado Libre, Inc	0.91%	36,457	$11M	added+80%	+0.27 pp	5 q
PYPLPayPal Holdings, Inc.	0.88%	150,785	$11M	added+11%	−0.18 pp	5 q
XONEExone CO/THE	0.84%	1,260,716	$11M	added+34%	−0.47 pp	5 q
NTDOYNintendo Co Ltd UNSP/	0.81%	226,928	$10M	added+8%	−0.37 pp	2 q
MTLSMaterialise NV	0.75%	738,284	$9M	added+51%	−0.12 pp	5 q
VCYTVeracyte, Inc.	0.73%	1,402,264	$9M	added×2.9	+0.21 pp	5 q
NSTGQNanoString Technologies, Inc.	0.68%	1,138,821	$9M	added×4.0	+0.12 pp	5 q
SYRSSyros Pharmaceuticals Inc	0.65%	834,757	$8M	added×6.2	+0.41 pp	5 q
unresolvedOrganovo Hldgs Inc	0.63%	5,891,552	$8M	added×2.2	−0.08 pp	5 q
AVAVAeroVironment, Inc.	0.56%	125,183	$7M	trimmed−10%	−0.36 pp	5 q
CTRPTrip.com Group Limited	0.53%	150,213	$7M	trimmed−5%	−0.49 pp	5 q
CGENCompugen Ltd	0.45%	2,253,416	$6M	added+96%	−0.08 pp	5 q
HUBSHubspot, Inc.	0.40%	56,462	$5M	added×2.0	+0.11 pp	5 q
GMGeneral Motors Company	0.38%	116,761	$5M	added×5.7	+0.28 pp	4 q
unresolvedBitcoin Investment Trust	0.35%	197,541	$4M	added×5.0	−3.04 pp	2 q
4AMNikon Slm Solutions AG	0.31%	68,577	$4M	added+59%	+0.09 pp	2 q
SHOPShopify Inc. Class A subordinate voting shares	0.30%	37,573	$4M	added×3.8	+0.16 pp	3 q
MLNXMellanox Technologies Ltd	0.30%	58,256	$4M	added×2.8	+0.18 pp	5 q
TWLOTwilio Inc.	0.29%	156,620	$4M	trimmed−46%	−0.76 pp	5 q
ALGNAlign Technology Inc	0.28%	16,072	$4M	added+13%	−0.04 pp	5 q
TRMBTrimble Inc.	0.27%	84,044	$3M	added+59%	+0.02 pp	5 q
ADBEAdobe Inc.	0.26%	18,913	$3M	added×2.7	+0.13 pp	5 q
DSYDassault Systems	0.24%	28,092	$3M	added×2.0	+0.07 pp	2 q
RNSHFRenishaw PLC	0.24%	42,936	$3M	added+16%	−0.05 pp	2 q
DEDeere & Company	0.23%	18,787	$3M	added+76%	+0.07 pp	2 q
FANUYFanuc Corp UNSP/	0.23%	121,203	$3M	trimmed−44%	−0.31 pp	2 q
NOWServicenow, Inc.	0.23%	22,495	$3M	added+94%	+0.06 pp	5 q
AKXAnsys Inc	0.22%	18,935	$3M	added+17%	−0.02 pp	5 q
BOXBox, Inc.	0.22%	131,811	$3M	added×2.6	+0.10 pp	5 q
HPQHP Inc.	0.20%	117,954	$2M	added+18%	−0.04 pp	5 q
AKAMAkamai Technologies Inc	0.19%	37,448	$2M	trimmed−76%	−0.73 pp	5 q
2613715DK2M Group Holdings Inc	0.19%	129,738	$2M	added+71%	−0.01 pp	5 q
unresolvedMazor Robotics Ltd	0.18%	44,035	$2M	added+57%	+0.01 pp	5 q
PRWYFProdways Group	0.18%	392,776	$2M	added×4.1	+0.10 pp	2 q
BIIBBiogen Inc.	0.17%	6,579	$2M	added+54%	+0.01 pp	5 q
PIImpinj, Inc.	0.16%	89,057	$2M	added×2.6	−0.01 pp	3 q
DDD3D Systems Corporation	0.15%	222,296	$2M	added×2.1	−0.03 pp	5 q
TMToyota Motor Corporation	0.15%	14,646	$2M	added+40%	0.00 pp	5 q
GILDGilead Sciences Inc	0.14%	23,674	$2M	added×3.8	+0.08 pp	2 q
BYDDYByd Co Ltd UNSP/	0.13%	92,036	$2M	added+54%	−0.01 pp	2 q
ESLTElbit Systems Ltd	0.13%	12,154	$2M	added+63%	0.00 pp	5 q
MSFTMicrosoft Corp	0.12%	17,528	$1M	added+3%	−0.04 pp	5 q
GRUAGeely Automobile-unspon ADR	0.11%	19,460	$1M	added+90%	+0.04 pp	2 q
PTCPtc, Inc	0.11%	23,377	$1M	added0%	−0.05 pp	5 q
ALNTAllient Inc.	0.10%	36,578	$1M	added+25%	+0.01 pp	5 q
CLLSCellectis S.A.	0.10%	44,382	$1M	added×2.7	+0.04 pp	4 q
ROKRockwell Automation, Inc.	0.10%	6,277	$1M	added+34%	0.00 pp	5 q
MSHHFMensch Und Mschine Softwr	0.10%	48,859	$1M	new	+0.10 pp	new
BBBlackBerry Limited	0.09%	105,161	$1M	trimmed−80%	−0.62 pp	2 q
CGNXCognex Corp	0.09%	17,948	$1M	new	+0.09 pp	new
CSODCornerstone OnDemand, Inc.	0.09%	33,434	$1M	added+5%	−0.07 pp	5 q
unresolvedInovio Pharmaceuticals Inc	0.09%	286,277	$1M	added+100%	−0.02 pp	5 q
QCOMQualcomm Inc	0.09%	18,147	$1M	added+21%	0.00 pp	5 q
TDOCTeladoc Health, Inc.	0.09%	31,321	$1M	added×3.1	+0.05 pp	2 q
ALBAlbemarle Corporation	0.08%	8,333	$1M	added+40%	−0.02 pp	5 q
CELGCelgene Corp	0.08%	9,695	$1M	added×3.9	+0.04 pp	5 q
FPRXFive Prime Therapeutics, Inc.	0.08%	43,215	$947,000	added+96%	−0.03 pp	5 q
INCYIncyte Genomics Inc	0.08%	11,004	$1M	added+53%	−0.02 pp	5 q
PLUGPlug Power Inc.	0.08%	412,391	$973,000	added+22%	−0.03 pp	3 q
REGNRegeneron Pharmaceuticals Inc	0.08%	2,761	$1M	added+24%	−0.04 pp	5 q
BDTBertrandt AG	0.08%	8,002	$978,000	added+36%	+0.01 pp	2 q
CFMSConformis, Inc.	0.07%	390,564	$930,000	added+44%	−0.05 pp	5 q
ARNCHowmet Aerospace Inc.	0.06%	27,553	$751,000	added+11%	−0.02 pp	5 q
FAROFaro Technologies Inc	0.06%	15,397	$724,000	added+28%	0.00 pp	5 q
UPSUnited Parcel Service, Inc. Class B	0.06%	5,896	$703,000	added+8%	−0.02 pp	5 q
SMAWFSiemens AG Ord	0.06%	5,723	$799,000	added+27%	−0.02 pp	2 q
CRSPCRISPR Therapeutics AG	0.06%	31,388	$737,000	added+23%	0.00 pp	3 q
unresolvedArrk Corp	0.06%	772,548	$810,000	added+28%	−0.01 pp	2 q
AMEAmetek, Inc.	0.05%	8,870	$643,000	added+15%	−0.01 pp	5 q
unresolvedGeneral Electric Co	0.05%	34,137	$596,000	added+89%	0.00 pp	5 q
JNCEJounce Therapeutics, Inc.	0.05%	53,176	$678,000	added+86%	0.00 pp	4 q
PACBPacific Biosciences of California, Inc.	0.05%	213,917	$565,000	added×6.2	+0.03 pp	2 q
unresolvedArcturus Therapeutics Ltd	0.05%	76,737	$610,000	new	+0.05 pp	new
unresolvedHexagon AB	0.05%	12,284	$617,000	added+26%	−0.01 pp	2 q
unresolvedBitcoin Gold Receivable	0.04%	2,004	$501,000	new	+0.04 pp	new
UCTTUltra Clean Holdings, Inc.	0.04%	23,758	$549,000	trimmed−7%	−0.06 pp	5 q
unresolvedPluristem Therapeutics Inc	0.03%	290,922	$401,000	added×4.6	+0.02 pp	2 q
SEDGSolarEdge Technologies, Inc.	0.03%	8,382	$315,000	new	+0.03 pp	new
TEVATeva Pharmaceutical Industries Limited	0.03%	17,164	$325,000	new	+0.03 pp	new
unresolvedMagicjack Vocaltec Ltd	0.03%	37,211	$314,000	new	+0.03 pp	new
URGNUroGen Pharma Ltd.	0.03%	9,284	$345,000	new	+0.03 pp	new
ALNYAlnylam Pharmaceuticals, Inc.	0.02%	2,098	$267,000	trimmed−77%	−0.11 pp	5 q
unresolvedDowdupont Inc	0.02%	3,032	$216,000	added+44%	0.00 pp	2 q
MGICMagic Software Enterprises Ltd	0.02%	28,561	$242,000	new	+0.02 pp	new
NICENICE Ltd	0.02%	3,126	$287,000	new	+0.02 pp	new
AUDCAudioCodes Ltd	0.02%	30,895	$227,000	new	+0.02 pp	new
BZQIFBezeq Israel Telecom	0.02%	169,324	$255,000	new	+0.02 pp	new
CAMTCamtek Ltd	0.02%	45,300	$259,000	new	+0.02 pp	new
CELJFCellcom Israel Ltd Ord	0.02%	26,332	$272,000	new	+0.02 pp	new
CRNTCeragon Networks Ltd	0.02%	123,737	$245,000	new	+0.02 pp	new
CHKPCheck Point Software Technologies Ltd	0.02%	2,158	$224,000	new	+0.02 pp	new
CYBRCyberark Software LTD/ISRAEL	0.02%	5,810	$240,000	new	+0.02 pp	new
DANEDanel (Adir Yeoshua) Ltd	0.02%	5,304	$299,000	new	+0.02 pp	new
ELCOElco Ltd	0.02%	12,514	$255,000	new	+0.02 pp	new
FTCFFFms Enterprises Migun Ltd	0.02%	6,444	$236,000	new	+0.02 pp	new
FOMXFoamix Pharmaceuticals Ltd	0.02%	39,160	$235,000	new	+0.02 pp	new
GILTGilat Satellite Networks Ltd	0.02%	36,694	$290,000	new	+0.02 pp	new
HLTEFHilan Tech Ltd	0.02%	12,572	$282,000	new	+0.02 pp	new
ITRNIturan Location and Control Ltd.	0.02%	6,802	$233,000	new	+0.02 pp	new
KMDAKamada Ltd	0.02%	52,695	$251,000	new	+0.02 pp	new
RMTHFMatrix It Ltd	0.02%	23,472	$297,000	new	+0.02 pp	new
NVMINova Ltd.	0.02%	8,474	$220,000	new	+0.02 pp	new
ORBKOrbotech Ltd	0.02%	5,832	$293,000	new	+0.02 pp	new
PTNRFPartner Communs Co Ord	0.02%	48,950	$310,000	new	+0.02 pp	new
unresolvedPointer Telocation Ltd	0.02%	15,002	$279,000	new	+0.02 pp	new
RADARada Electronic Inds Ltd	0.02%	73,042	$225,000	new	+0.02 pp	new
RDCMRadcom Ltd.	0.02%	12,470	$248,000	new	+0.02 pp	new
RDWRRadware Ltd.	0.02%	14,835	$288,000	new	+0.02 pp	new
SILCSilicom Ltd	0.02%	3,742	$262,000	new	+0.02 pp	new
SCIXFSuny Cellular Com Ltd Ord	0.02%	363,578	$228,000	new	+0.02 pp	new
TAROTaro Pharmaceutical Indus	0.02%	2,356	$247,000	new	+0.02 pp	new
TSEMTower Semiconductor Ltd	0.02%	8,162	$278,000	new	+0.02 pp	new
unresolvedVascular Biogenics Ltd	0.02%	42,484	$302,000	new	+0.02 pp	new
WIXWIX.com Ltd.	0.02%	3,742	$215,000	new	+0.02 pp	new
unresolvedSapiens International Corp	0.02%	18,524	$213,000	new	+0.02 pp	new
ATIATI Inc.	0.01%	3,000	$72,000	added+4%	0.00 pp	5 q
CBOECboe Global Markets, Inc.	0.01%	732	$91,000	new	+0.01 pp	new
CMECME Group Inc.	0.01%	820	$120,000	new	+0.01 pp	new
CRSCarpenter Technology Corp	0.01%	1,674	$85,000	added+25%	0.00 pp	5 q
EMNEastman Chemical Company	0.01%	774	$72,000	added+29%	0.00 pp	5 q
FISVFiserv, Inc.	0.01%	901	$118,000	new	+0.01 pp	new
GWREGuidewire Software, Inc.	0.01%	1,585	$118,000	new	+0.01 pp	new
HDBHDFC Bank Limited	0.01%	794	$81,000	new	+0.01 pp	new
HXLHexcel Corporation	0.01%	1,194	$74,000	added+27%	0.00 pp	2 q
INTUIntuit Inc	0.01%	923	$146,000	trimmed−93%	−0.22 pp	3 q
NNDMNano Dimension Ltd.	0.01%	60,629	$186,000	added+82%	−0.01 pp	5 q
NDAQNasdaq, Inc.	0.01%	1,588	$122,000	new	+0.01 pp	new
POLAvient Corporation	0.01%	1,706	$74,000	added+28%	0.00 pp	5 q
PXGBXPraxair Inc	0.01%	491	$76,000	added+29%	0.00 pp	5 q
RDHLRedhill Biopharma Ltd.	0.01%	29,040	$149,000	new	+0.01 pp	new
SCHWThe Charles Schwab Corporation	0.01%	1,662	$85,000	new	+0.01 pp	new
SBUXStarbucks Corp	0.01%	1,707	$98,000	new	+0.01 pp	new
TRUTransUnion	0.01%	1,803	$99,000	new	+0.01 pp	new
VVISA Inc.	0.01%	602	$69,000	new	+0.01 pp	new
WDAYWorkday, Inc. Class A	0.01%	671	$68,000	new	+0.01 pp	new
ARKAFArkema Ord	0.01%	571	$70,000	added+29%	0.00 pp	2 q
unresolvedFenner PLC	0.01%	14,593	$79,000	added+31%	0.00 pp	2 q
NTDOFNintendo Co Ltd Ord	0.01%	171	$63,000	held	—	2 q
RKUNFRakuten Group Inc	0.01%	10,600	$97,000	new	+0.01 pp	new
SBHGFSbi Holdings Inc Ord	0.01%	8,600	$180,000	new	+0.01 pp	new
TRYIFToray Indus Inc Ord	0.01%	7,392	$70,000	added+28%	0.00 pp	2 q
unresolvedAeronautics Ltd	0.01%	56,518	$176,000	new	+0.01 pp	new
unresolvedEvogene Ltd - ADR	0.01%	31,499	$97,000	added+53%	0.00 pp	5 q
DSMKoninklijke Dsm NV	0.01%	881	$84,000	added+27%	0.00 pp	2 q
ASXFFAsx Ltd Ord	0.01%	2,525	$108,000	new	+0.01 pp	new
XROLFXero Ltd Ord	0.01%	3,196	$71,000	new	+0.01 pp	new
FANDFFirstrand Ltd	0.01%	18,730	$102,000	new	+0.01 pp	new
SDVKFSandvik AB	0.01%	4,068	$71,000	added+27%	0.00 pp	2 q
DPZDomino's Pizza Inc.	0.00%	173	$33,000	new	0.00 pp	new
KODKEastman Kodak Company	0.00%	7,728	$24,000	added+41%	0.00 pp	5 q
IBKRInteractive Brokers Group, Inc. Class A	0.00%	515	$30,000	new	0.00 pp	new
IBMInternational Business Machines Corporation	0.00%	366	$56,000	new	0.00 pp	new
MSCIMSCI, Inc.	0.00%	477	$60,000	new	0.00 pp	new
SGLBNextTrip, Inc.	0.00%	16,063	$35,000	trimmed−64%	−0.01 pp	4 q
VRSKVerisk Analytics, Inc.	0.00%	344	$33,000	new	0.00 pp	new
unresolvedWirecard AG - ADR	0.00%	597	$33,000	new	0.00 pp	new
BAYZFBayer A G Ord	0.00%	390	$49,000	held	—	2 q
FKDNFFujitsu Frontech Ltd	0.00%	220	$4,000	new	0.00 pp	new
unresolvedSoftBank Group Corp	0.00%	555	$44,000	held	—	2 q
unresolvedTrade Me Group Ltd	0.00%	15,998	$55,000	new	0.00 pp	new
TMOThermo Fisher Scientific, Inc.	—	−18,893	—	exited	−0.44 pp	—
unresolvedExa Corp	—	−92,997	—	exited	−0.27 pp	—
FRIIFFrance Mgi Digital Graph	—	−32,651	—	exited	−0.25 pp	—
unresolvedDelphi Automotive PLC	—	−15,452	—	exited	−0.19 pp	—
EXALFExail Technologies	—	−46,857	—	exited	−0.14 pp	—
AGIOAgios Pharmaceuticals, Inc.	—	−13,399	—	exited	−0.11 pp	—
FLEXFlex Ltd.	—	−54,954	—	exited	−0.11 pp	—
BAYRYBayer AG S/	—	−10,684	—	exited	−0.04 pp	—
XONPrecigen, Inc.	—	−8,908	—	exited	−0.02 pp	—
FPLSF5N Plus Inc	—	−21,253	—	exited	−0.01 pp	—
unresolvedKite Pharma Inc	—	−557	—	exited	−0.01 pp	—
FANUFFanuc Corporation	—	−220	—	exited	−0.01 pp	—