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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
+0.52 (+0.58%)
ARKK 89.62 · +0.5 pts (+0.58%) QTD
93.1891.5689.9588.3486.73EW +0.10%H 92.78 · Oct 5L 87.60 · Oct 8
Sep 30Oct 2Oct 6Oct 7Oct 9
Breadth
19 / 41
stocks rose with the index
Concentration
100%+
of the gain from TSLA, SPCX, SHOP
Biggest driver
TSLA +0.71
TESLA INC, +7.86%
Biggest drag
TEM −0.68
TEMPUS AI INC-CL A, −13.39%

What drove it

41 members · drivers first · QTD · residual 76.0bp exceeds 60bp gate

The ARKK rose 0.58% (+0.52 pts) so far this quarter, but 22 of 41 members went the other way. TSLA and SPCX carried the tape higher, 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

+3.0 pts from 23 gainers−2.5 pts from 18 losers
net +0.5 pts · gainers outweigh losers 1.2 to 1
Stock
Points
Return
ARKKsum of all 41 stocks
+0.5
100%
+0.58%
TSLATESLA INC
+0.7
136%
+7.86%
SPCXSPACE EXPLORATION TECHN-CL A
+0.6
117%
+7.76%
SHOPSHOPIFY INC - CLASS A
+0.4
80%
+15.21%
PLTRPALANTIR TECHNOLOGIES INC-A
+0.2
46%
+11.76%
AMZNAMAZON.COM INC
+0.1
26%
+5.33%
XYZBLOCK INC
+0.1
21%
+5.05%
BEAMBEAM THERAPEUTICS INC
+0.1
20%
+5.11%
AVGOBROADCOM INC
+0.1
20%
+2.95%
RXRXRECURSION PHARMACEUTICALS-A
+0.1
19%
+5.57%
CRCLCIRCLE INTERNET GROUP INC
+0.1
18%
+2.87%
NTLAINTELLIA THERAPEUTICS INC
+0.1
13%
+8.37%
NVDANVIDIA CORP
+0.1
11%
+0.39%
BWXTBWX TECHNOLOGIES INC
+0.0
8%
+4.96%
NETCLOUDFLARE INC - CLASS A
+0.0
8%
+3.95%
AMDADVANCED MICRO DEVICES
+0.0
7%
−0.60%
11 othersclick to expand the full index
+0.1
19%
·
CERSCERUS CORP
−0.0
−2%
−3.36%
VCYTVERACYTE INC
−0.0
−4%
−1.76%
METAMETA PLATFORMS INC-CLASS A
−0.0
−4%
−0.90%
NTRANATERA INC
−0.0
−5%
−3.05%
CRWVCOREWEAVE INC-CL A
−0.0
−8%
−5.79%
HOODROBINHOOD MARKETS INC - A
−0.1
−11%
−3.09%
WGSGENEDX HOLDINGS CORP
−0.1
−11%
−6.87%
CRSPCRISPR THERAPEUTICS AG
−0.1
−15%
−3.49%
COINCOINBASE GLOBAL INC -CLASS A
−0.1
−20%
−3.77%
BLSHBULLISH
−0.1
−23%
−6.62%
CBRSCEREBRAS SYSTEMS INC - A
−0.1
−24%
−7.59%
BMNRBITMINE IMMERSION TECHNOLOGI
−0.2
−30%
−9.02%
TXG10X GENOMICS INC-CLASS A
−0.3
−64%
−10.75%
TWSTTWIST BIOSCIENCE CORP
−0.6
−117%
−17.32%
TEMTEMPUS AI INC-CL A
−0.7
−130%
−13.39%
Cap weighting, illustrated

TESLA INC and INTELLIA THERAPEUTICS INC moved almost identically (+7.86% vs +8.37%), yet TSLA moved the ARKK 10.8× 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 +0.52 pt move · cell size = points contributed · color = direction, intensity = return
TSLA+0.7 pts(+7.9%)
TEM−0.7 pts(−13.4%)
SPCX+0.6 pts(+7.8%)
TWST−0.6 pts(−17.3%)
SHOP+0.4 pts(+15.2%)
TXG−0.3 pts(−10.7%)
PLTR+0.2 pts
BMNR−0.2 pts(−9.0%)
AMZN+0.1 pts
CBRS−0.1 pts
BLSH−0.1 pts
XYZ+0.1 pts
COIN−0.1 pts
BEAM
AVGO+0.1 pts(+2.9%)
RXRX+0.1 pts(+5.6%)
CRCL
CRSP
WGS−0.1 pts
HOOD−0.1 pts
NVDA+0.1 pts
CRWV−0.0 pts
BWXT
GOOG
PACB
ILMN

Concentration curve

cumulative share of the +0.52 pt move · sorted by contribution
0%50%100%10213141stocks:3 stocks = 332%100% covered at 1

When they drove it

cumulative points through the period
0TSLA +0.71SPCX +0.61SHOP +0.41TEM −0.68TWST −0.61TXG −0.33Sep 30Oct 9

Breadth

member returns, this period
−20%−10%0%+10%
From −17.32% (TWST) to +15.21% (SHOP). Equal-weight, the ARKK would be +0.10% vs the actual +0.58%; the gap is what cap weighting did.

By sector

point contribution · sums to +0.52 pts
Unknown41
+0.5

The year, session by session

every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUGSEPOCT

Share this move

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