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WHAT MOVED THE MARKET TODAY

ARK Innovation ETF

41 stocks · cap-weighted, ETF-derived weights · Oct 9, 2026 close
89.62
+12.70 (+16.51%)
ARKK 89.62 · +12.7 pts (+16.51%) YTD
105.4094.2483.0971.9360.78EW +28.71%H 92.78 · Oct 5L 63.52 · Mar 30
Dec 31Mar 13May 21Aug 3Oct 9
Breadth
28 / 41
stocks rose with the index
Concentration
54%
of the gain from TWST, TXG, TEM
Biggest driver
TWST +2.54
TWIST BIOSCIENCE CORP, +403.72%
Biggest drag
CBRS −2.31
CEREBRAS SYSTEMS INC - A, −47.22%

What drove it

41 members · drivers first · YTD · residual 1209.2bp exceeds 60bp gate

The ARKK rose 16.51% (+12.70 pts) so far this year on a mixed tape; TWST, TXG, TEM did most of the lifting, with 54% of the gain between them.

Read the latest market-close note: Goldman and Microsoft Push the Dow to a Large Gain While Telecoms Sink Communication Services

+18.5 pts from 29 gainers−6.8 pts from 12 losers
net +12.7 pts · gainers outweigh losers 2.7 to 1
Stock
Points
Return
ARKKsum of all 41 stocks
+12.7
100%
+16.51%
TWSTTWIST BIOSCIENCE CORP
+2.5
20%
+403.72%
TXG10X GENOMICS INC-CLASS A
+2.3
18%
+394.48%
TEMTEMPUS AI INC-CL A
+2.1
16%
+20.12%
AMDADVANCED MICRO DEVICES
+1.4
11%
+183.95%
HOODROBINHOOD MARKETS INC - A
+1.0
8%
−3.61%
NTLAINTELLIA THERAPEUTICS INC
+0.9
7%
+45.38%
CRSPCRISPR THERAPEUTICS AG
+0.8
7%
+1.81%
PLTRPALANTIR TECHNOLOGIES INC-A
+0.6
5%
+17.61%
XYZBLOCK INC
+0.6
5%
+18.67%
NVDANVIDIA CORP
+0.6
4%
+23.09%
AMZNAMAZON.COM INC
+0.6
4%
+13.69%
BEAMBEAM THERAPEUTICS INC
+0.5
4%
−7.29%
ILMNILLUMINA INC
+0.5
4%
+112.08%
METAMETA PLATFORMS INC-CLASS A
+0.5
4%
+9.06%
GOOGALPHABET INC-CL C
+0.5
4%
+11.00%
11 othersclick to expand the full index
+3.1
25%
·
BLSHBULLISH
+0.1
0%
−13.97%
CERSCERUS CORP
+0.0
0%
+11.65%
CRWVCOREWEAVE INC-CL A
+0.0
0%
+14.62%
ARKYARK ACTIVE AUTOCALL INC ETF
−0.0
0%
+0.83%
VCYTVERACYTE INC
−0.0
0%
+7.43%
BWXTBWX TECHNOLOGIES INC
−0.1
−1%
−16.57%
SOFISOFI TECHNOLOGIES INC
−0.2
−2%
−39.65%
ACHRARCHER AVIATION INC-A
−0.3
−2%
−33.91%
SPCXSPACE EXPLORATION TECHN-CL A
−0.4
−3%
+1.01%
XEX-ENERGY INC
−0.5
−4%
−53.05%
COINCOINBASE GLOBAL INC -CLASS A
−0.5
−4%
−20.67%
KTOSKRATOS DEFENSE & SECURITY
−0.5
−4%
−44.20%
WGSGENEDX HOLDINGS CORP
−0.9
−7%
−48.23%
CRCLCIRCLE INTERNET GROUP INC
−1.0
−8%
+6.60%
CBRSCEREBRAS SYSTEMS INC - A
−2.3
−18%
−47.22%
Cap weighting, illustrated

AMAZON.COM INC and COREWEAVE INC-CL A moved almost identically (+13.69% vs +14.62%), yet AMZN moved the ARKK 25.0× as much. In a cap-weighted index, the bigger company's weight turns the same percentage move into far more points.

Attribution map

slicing the +12.70 pt move · cell size = points contributed · color = direction, intensity = return
TWST+2.5 pts(+403.7%)
CBRS−2.3 pts(−47.2%)
TXG+2.3 pts(+394.5%)
TEM+2.1 pts(+20.1%)
AMD+1.4 pts(+183.9%)
CRCL−1.0 pts(+6.6%)
HOOD+1.0 pts
NTLA+0.9 pts
WGS−0.9 pts(−48.2%)
CRSP+0.8 pts(+1.8%)
PLTR+0.6 pts
XYZ+0.6 pts
NVDA+0.6 pts
AMZN+0.6 pts
KTOS−0.5 pts
COIN−0.5 pts
BEAM+0.5 pts(−7.3%)
ILMN+0.5 pts(+112.1%)
XE−0.5 pts(−53.0%)
META+0.5 pts
GOOG
NTRA+0.5 pts(+74.9%)
SPCX−0.4 pts(+1.0%)
NET+0.4 pts
TER+0.4 pts
RXRX
TSLA
ACHR
SHOP
BMNR
TSM
SOFI
PACB

Concentration curve

cumulative share of the +12.70 pt move · sorted by contribution
0%50%100%10213141stocks:3 stocks = 54%100% covered at 10

When they drove it

cumulative points through the period
0TWST +2.54TXG +2.27TEM +2.07CBRS −2.31CRCL −1.04WGS −0.89Dec 31Oct 9

Breadth

member returns, this period
−100%0%+100%+200%+300%+400%
From −53.05% (XE) to +403.72% (TWST). Equal-weight, the ARKK would be +28.71% vs the actual +16.51%; the gap is what cap weighting did.

By sector

point contribution · sums to +12.70 pts
Unknown41
+11.6

The year, session by session

every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUGSEPOCT

Share this move

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