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WHAT MOVED THE MARKET TODAY

ARK Innovation ETF

43 stocks · cap-weighted, ETF-derived weights · Aug 25, 2026 close
86.43
+9.51 (+12.36%)
ARKK 86.43 · +9.5 pts (+12.36%) YTD
95.6087.0678.5169.9761.42EW +21.56%H 86.43 · Aug 25L 63.52 · Mar 30
Dec 31Mar 3Apr 29Jun 29Aug 25
Breadth
23 / 43
stocks rose with the index
Concentration
68%
of the gain from TWST, TXG, AMD
Biggest driver
TWST +2.70
TWIST BIOSCIENCE CORP, +377.36%
Biggest drag
CBRS −1.30
CEREBRAS SYSTEMS INC - A, −40.88%

What drove it

43 members · drivers first · YTD · residual 750.6bp exceeds 60bp gate

The ARKK rose 12.36% (+9.51 pts) so far this year, but 20 of 43 members went the other way. TWST and TXG carried the tape higher, accounting for 68% of the gain.

Read the latest market-close note: Nvidia and Goldman Sachs Lead a Narrow Advance as Energy and Staples Slide

+15.3 pts from 25 gainers6.8 pts from 18 losers
net +9.5 pts · gainers outweigh losers 2.3 to 1
Stock
Points
Return
ARKKsum of all 43 stocks
+9.5
100%
+12.36%
TWSTTWIST BIOSCIENCE CORP
+2.7
28%
+377.36%
TXG10X GENOMICS INC-CLASS A
+2.1
22%
+296.81%
AMDADVANCED MICRO DEVICES
+1.6
17%
+123.75%
TEMTEMPUS AI INC-CL A
+1.2
12%
+16.39%
NTLAINTELLIA THERAPEUTICS INC
+0.9
10%
+50.28%
CRSPCRISPR THERAPEUTICS AG
+0.8
8%
+16.13%
BEAMBEAM THERAPEUTICS INC
+0.7
8%
+11.94%
AMZNAMAZON.COM INC
+0.7
7%
+13.10%
CRWVCOREWEAVE INC-CL A
+0.6
6%
+22.94%
HOODROBINHOOD MARKETS INC - A
+0.6
6%
−0.89%
GOOGALPHABET INC-CL C
+0.6
6%
+9.56%
ILMNILLUMINA INC
+0.4
4%
+71.54%
XYZBLOCK INC
+0.4
4%
+27.07%
TERTERADYNE INC
+0.3
4%
+89.46%
NVDANVIDIA CORP
+0.3
3%
+14.37%
13 othersclick to expand the full index
+1.2
12%
·
RXRXRECURSION PHARMACEUTICALS-A
−0.0
0%
−12.96%
RBLXROBLOX CORP -CLASS A
−0.0
0%
−51.72%
TSLATESLA INC
−0.0
0%
−22.12%
PLTRPALANTIR TECHNOLOGIES INC-A
−0.1
−1%
−2.82%
VCYTVERACYTE INC
−0.1
−1%
+4.61%
ACHRARCHER AVIATION INC-A
−0.2
−2%
−20.68%
SOFISOFI TECHNOLOGIES INC
−0.2
−2%
−27.43%
BLSHBULLISH
−0.2
−2%
−15.45%
KTOSKRATOS DEFENSE & SECURITY
−0.3
−3%
−30.65%
XEX-ENERGY INC
−0.4
−4%
−34.55%
SHOPSHOPIFY INC - CLASS A
−0.7
−7%
−4.40%
WGSGENEDX HOLDINGS CORP
−0.8
−9%
−32.80%
COINCOINBASE GLOBAL INC -CLASS A
−1.2
−12%
−17.24%
SPCXSPACE EXPLORATION TECHN-CL A
−1.2
−13%
−14.29%
CBRSCEREBRAS SYSTEMS INC - A
−1.3
−14%
−40.88%
Cap weighting, illustrated

COINBASE GLOBAL INC -CLASS A and PACIFIC BIOSCIENCES OF CALIF moved almost identically (−17.24% vs −18.72%), yet COIN moved the ARKK 84.1× 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 +9.51 pt move · cell size = points contributed · color = direction, intensity = return
TWST+2.7 pts(+377.4%)
TXG+2.1 pts(+296.8%)
AMD+1.6 pts(+123.7%)
CBRS−1.3 pts(−40.9%)
SPCX−1.2 pts(−14.3%)
TEM+1.2 pts(+16.4%)
COIN−1.2 pts(−17.2%)
NTLA+0.9 pts(+50.3%)
WGS−0.8 pts(−32.8%)
CRSP+0.8 pts(+16.1%)
BEAM+0.7 pts(+11.9%)
SHOP−0.7 pts(−4.4%)
AMZN+0.7 pts(+13.1%)
CRWV+0.6 pts(+22.9%)
HOOD+0.6 pts(−0.9%)
GOOG+0.6 pts(+9.6%)
ILMN
XE−0.4 pts(−34.6%)
XYZ+0.4 pts(+27.1%)
TER+0.3 pts
NVDA+0.3 pts
KTOS
NTRA+0.3 pts
BLSH−0.2 pts
SOFI−0.2 pts
ACHR−0.2 pts
GOOGL
NET
VCYT

Concentration curve

cumulative share of the +9.51 pt move · sorted by contribution
0%50%100%11223243stocks:3 stocks = 68%100% covered at 7

When they drove it

cumulative points through the period
0TWST +2.70TXG +2.14AMD +1.63CBRS −1.30SPCX −1.21COIN −1.18Dec 31Aug 25

Breadth

member returns, this period
−100%0%+100%+200%+300%
From −51.72% (RBLX) to +377.36% (TWST). Equal-weight, the ARKK would be +21.56% vs the actual +12.36%; the gap is what cap weighting did.

By sector

point contribution · sums to +9.51 pts
Unknown43
+8.5

The year, session by session

every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUG

Share this move

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