ARKK · WMTMT

Oct 5Oct 6Oct 7Oct 8Oct 9

30-minute bars · index reconstructed live from member prices

Breadth

21 / 41

stocks fell with the index

Concentration

100%+

of the decline from TWST, TXG, TEM

Biggest driver

TWST −0.53

TWIST BIOSCIENCE CORP, −15.31%

Biggest offset

SHOP +0.36

SHOPIFY INC - CLASS A, +12.85%

What drove it

41 members · detractors first · 1W · residual 62.4bp exceeds 60bp gate

The ARKK fell 0.23% (−0.21 pts) on the week, but 20 of 41 members went the other way. TWST and TXG dragged the tape lower, contributing more than the entire move.

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

+2.0 pts from 22 gainers−2.2 pts from 19 losers

net −0.2 pts · losers outweigh gainers 1.1 to 1

Stock

Points

Return

ARKKsum of all 41 stocks

−0.2

−0.23%

TWSTTWIST BIOSCIENCE CORP

−0.5

−15.31%

TXG10X GENOMICS INC-CLASS A

−0.4

−13.74%

TEMTEMPUS AI INC-CL A

−0.4

−7.44%

BMNRBITMINE IMMERSION TECHNOLOGI

−0.1

−8.47%

CRWVCOREWEAVE INC-CL A

−0.1

−8.41%

TERTERADYNE INC

−0.1

−11.21%

CRSPCRISPR THERAPEUTICS AG

−0.1

−3.68%

BLSHBULLISH

−0.1

−4.82%

WGSGENEDX HOLDINGS CORP

−0.1

−7.88%

HOODROBINHOOD MARKETS INC - A

−0.1

−3.30%

AMDADVANCED MICRO DEVICES

−0.0

−4.07%

METAMETA PLATFORMS INC-CLASS A

−0.0

−1.29%

TSMTAIWAN SEMICONDUCTOR-SP ADR

−0.0

−4.13%

XEX-ENERGY INC

−0.0

−4.66%

VCYTVERACYTE INC

−0.0

−1.27%

11 othersclick to expand the full index

−0.0

LLYELI LILLY & CO

+0.0

+3.14%

GOOGALPHABET INC-CL C

+0.0

+2.21%

NETCLOUDFLARE INC - CLASS A

+0.0

+3.42%

NTLAINTELLIA THERAPEUTICS INC

+0.0

+6.61%

BWXTBWX TECHNOLOGIES INC

+0.1

+6.63%

AVGOBROADCOM INC

+0.1

+1.80%

XYZBLOCK INC

+0.1

+3.92%

BEAMBEAM THERAPEUTICS INC

+0.1

+4.90%

RXRXRECURSION PHARMACEUTICALS-A

+0.1

+5.83%

AMZNAMAZON.COM INC

+0.1

+4.34%

CRCLCIRCLE INTERNET GROUP INC

+0.1

+4.04%

PLTRPALANTIR TECHNOLOGIES INC-A

+0.2

+10.75%

SPCXSPACE EXPLORATION TECHN-CL A

+0.3

+2.27%

TSLATESLA INC

+0.3

+3.27%

SHOPSHOPIFY INC - CLASS A

+0.4

+12.85%

Cap weighting, illustrated

TEMPUS AI INC-CL A and PACIFIC BIOSCIENCES OF CALIF moved almost identically (−7.44% vs −8.27%), yet TEM moved the ARKK 36.7× 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 −0.21 pt move · cell size = points contributed · color = direction, intensity = return

TWST−0.5 pts(−15.3%)

TXG−0.4 pts(−13.7%)

TEM−0.4 pts(−7.4%)

SHOP+0.4 pts(+12.9%)

TSLA+0.3 pts(+3.3%)

SPCX+0.3 pts(+2.3%)

PLTR+0.2 pts(+10.8%)

CRCL+0.1 pts

BMNR−0.1 pts(−8.5%)

CRWV−0.1 pts

AMZN+0.1 pts

TER−0.1 pts(−11.2%)

RXRX+0.1 pts(+5.8%)

BEAM+0.1 pts

CRSP

XYZ+0.1 pts(+3.9%)

BLSH−0.1 pts(−4.8%)

AVGO+0.1 pts

WGS−0.1 pts

HOOD

BWXT+0.1 pts

NTLA

NET+0.0 pts

AMD−0.0 pts

GOOG

VCYT

COIN

ILMN

Concentration curve

cumulative share of the −0.21 pt move · sorted by contribution

When they drove it

cumulative points through the period

Breadth

member returns, this period

−20%−10%0%+10%

From −15.31% (TWST) to +12.85% (SHOP). Equal-weight, the ARKK would be −0.57% vs the actual −0.23%; the gap is what cap weighting did.

By sector

point contribution · sums to −0.21 pts

Unknown41

−0.2

The year, session by session

every trading day of 2026 · hover for the move

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What drove it

Attribution map

Concentration curve

When they drove it

Breadth

By sector

The year, session by session

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