Tempus AI surges 23% while Dell slides: August 19 closing movers

As seen on the 24/7 Wall St. homepage on August 19, 2026.

Biggest movers · At the close Aug 19, 4:10pm ET

Gainers

TEMTempus AI$60.68+22.9%
HIMSHims & Hers$30.74+12.2%
GPROGoPro$0.64+7.5%
SMRNuScale Power$9.24+6.9%
UPSTUpstart$30.97+6.4%

Losers

IQiQIYI$1.12-9.2%
DOCNDigitalOcean$116.16-7.3%
DELLDell Technologies$436.24-6.9%
APPSDigital Turbine$11.32-6.6%
AAOIApplied Optoelectronics$122.85-6.5%

Tempus AI ended the day up 22.93% at $60.68, the standout in a 110-name priority list where nothing else gained more than 13%. Hardware and infrastructure names took the other side, with Dell shedding 6.92% to $436.24.

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Tempus AI's 22.93% advance on August 19 nearly doubled the next-best gainer, Hims & Hers, and led every name on the priority list.

Gainers behind it were far more modest, with GoPro, NuScale Power and Upstart all advancing less than a third as much.

Selling pressure landed hardest on hardware and infrastructure names, including Dell Technologies, Applied Optoelectronics, Digital Turbine and DigitalOcean.

iQIYI was the session's steepest loser, falling 9.24% to $1.12 while AI-adjacent names drew the buying.

Sources

Mentioned: TEM, HIMS, GPRO, SMR, UPST, IQ, DOCN, DELL

Related Market Updates

Biggest movers · At the close Oct 1, 4:10pm ET

Gainers

ACNAccenture$211.97+15.6%
SNPSSynopsys$490.81+12.8%
COHRCoherent$318.52+10.7%
AAOIApplied Optoelectronics$107.16+8.0%
LITELumentum$1,043.95+7.5%

Losers

AMCAMC Entertainment$2.75-8.2%
TEMTempus AI$76.51-6.6%
BRKRBruker$61.76-4.6%
DHRDanaher$211.34-4.6%
NWGNatWest Group$17.36-4.3%

Three names in our 383-stock board closed with double-digit gains, led by Accenture's 15.6% jump to $211.97, a move that size is rare for a mega-cap consultant. The downside was far tamer, with AMC's 8.2% slide the worst of it.

Biggest movers · At the close Sep 30, 4:10pm ET

Gainers

AIC3.ai$11.01+6.4%
HPEHewlett Packard Enterprise$64.06+4.2%
HIMSHims & Hers$29.84+4.0%
INTCIntel$120.29+3.8%
ACNAccenture$183.31+3.5%

Losers

MRNAModerna$192.22-5.5%
MARAMarathon Digital$11.37-5.2%
APPSDigital Turbine$11.05-5.1%
APPAppLovin$290.93-4.8%
BEBloom Energy$278.25-4.5%

The tape spread nearly 12 points wide at the close: C3.ai finished up 6.43% at $11.01 while Moderna gave back 5.52%. Enterprise tech names took the top four gainer slots, and the losers skew toward high-beta momentum.

Biggest movers · On the open Sep 29, 9:50am ET

Gainers

BEBloom Energy$283.36+7.8%
RCLRoyal Caribbean Cruises$257.13+6.0%
AMATApplied Materials$506.36+4.0%
VRTVertiv$251.75+3.2%
GLWCorning$156.24+3.1%

Losers

IQiQIYI$0.98-4.8%
BUDAnheuser-Busch InBev$74.09-3.9%
SLBSchlumberger$50.02-2.9%
EQNREquinor$41.1-2.8%
BTIBritish American Tobacco$54.65-2.5%

Bloom Energy opened 7.79% higher, the widest move in a 383-stock board where nothing else on either side cleared 6%. Energy names sit on the losing end, with iQIYI the weakest at -4.81% and still under a dollar.

UPST Upstart

Sep 28, 6:00pm ET

New 52-week low $23.03 -3.3% vs prior low · 2026-09-25

Upstart set a new 52-week low at $23.03, 3.28% under the floor it just made on Sept. 25. The AI lender's market cap is down to $2.2 billion, with no support left on the one-year chart.

Biggest movers · At the close Sep 28, 4:10pm ET

Gainers

AMCAMC Entertainment$3.26+10.9%
PANWPalo Alto Networks$391.51+4.5%
RBRKRubrik$113.08+3.2%
GPROGoPro$1.32+2.3%
IDXXIDEXX Laboratories$529.68+2.0%

Losers

ARMArm$284.01-8.5%
DASHDoorDash$178.15-7.9%
ACHRArcher Aviation$5.19-7.6%
QCOMQualcomm$187.7-7.1%
DUOLDuolingo$134.08-6.6%

AMC Entertainment's 10.88% jump to $3.26 was the only double-digit move of the session, and the downside was where the size was: five names finished off more than 6%, led by Arm at -8.48%. Chip and consumer-tech leaders took the brunt of it.

Biggest movers · At the close Sep 25, 4:10pm ET

Gainers

ONON Semiconductor$77.19+5.5%
FNFabrinet$418.14+5.0%
DELLDell Technologies$561.77+4.8%
QCOMQualcomm$203.09+4.5%
SMCISuper Micro Computer$43.21+4.1%

Losers

ZSZscaler$193.43-9.9%
SSentinelOne$22.34-6.8%
IRENIren$44.11-4.4%
RBRKRubrik$109.41-3.9%
PANWPalo Alto Networks$375.02-3.8%

Chips and hardware took the top five slots at Thursday's close, led by ON Semiconductor's 5.52% gain, while every big decliner but one was a cybersecurity name. Zscaler's 9.88% drop to $193.43 was the worst in the group.

Biggest movers · At the close Sep 24, 4:11pm ET

Gainers

BRKRBruker$64.13+7.5%
TEMTempus AI$82.15+7.3%
IONQIonQ$45.01+5.8%
AFRMAffirm$71.54+5.1%
METAMeta$778.35+4.6%

Losers

ARMArm$304.35-8.5%
APPSDigital Turbine$10.94-5.2%
GPROGoPro$1.25-4.6%
GMGeneral Motors$80.22-4.2%
SNDKSanDisk$1,753.24-3.5%

Arm's 8.5% slide was the deepest move in a 111-stock priority list at Wednesday's close, with Bruker leading the upside at 7.5%.

Biggest movers · At the close Sep 23, 4:11pm ET

Gainers

PANWPalo Alto Networks$392.81+4.9%
ASANAsana$9.47+4.2%
IONQIonQ$42.43+4.1%
DOCUDocuSign$69.29+3.8%
PLTRPalantir$191.7+3.6%

Losers

EXPEExpedia$259.02-7.7%
ABNBAirbnb$149.57-7.6%
LMNDLemonade$44.57-6.5%
HIMSHims & Hers$28.48-6.4%
OPENOpendoor Technologies$2.6-6.0%

Travel took the worst of Wednesday's close, with Expedia down 7.72% and Airbnb close behind at 7.56%. Software ran the other way: Palo Alto Networks led all gainers at 4.87%, with Palantir back near $192.

Biggest movers · At the close Sep 21, 4:10pm ET

Gainers

ARMArm$323+17.2%
ALABAstera Labs$342.36+12.9%
APPSDigital Turbine$12.02+12.8%
INTCIntel$122.14+12.5%
DOCNDigitalOcean$146.28+12.4%

Losers

NVONovo Nordisk$39.81-7.9%
IOTSamsara$38.08-3.7%
XOMExxon Mobil$158.69-3.0%
CVXChevron$203.95-2.6%
BROSDutch Bros$39.05-2.5%

Arm closed up 17.19% at $323, topping a session where four other priority names each added more than 12%. Declines stayed shallow: Novo Nordisk's 7.94% drop was the only one past 4%, with Exxon Mobil and Chevron down under 3%.

DOCN DigitalOcean

Regular session

Sep 21, 12:40pm ET

$147.81

+12.40% open $131.50

A 12.4% intraday run adds roughly $2 billion of market value in one session. Moves that big are rare for this cloud name, and holding the $131.50 open as support is the next test.

52-week highs Sep 18, 6:00pm ET

5 stocks hit new 52-week highs this week

DELLDell Technologies$568.06+9.9%
HPEHewlett Packard Enterprise$60.76+3.8%
CVXChevron$209.51+1.9%
NETCloudflare$323.6+0.9%
RBRKRubrik$106.71+0.8%

Five names printed fresh 52-week highs this week, and Dell cleared its prior peak by 9.93%, the widest margin of the group. Hewlett Packard Enterprise, Chevron, Cloudflare and Rubrik rounded out the list with narrower breakouts.

Biggest movers · At the close Sep 18, 4:10pm ET

Gainers

MARAMarathon Digital$13.21+13.5%
SNDKSanDisk$1,787.02+10.7%
CIFRCipher Mining$18.27+7.9%
COHRCoherent$318.27+7.5%
IRENIren$46.53+7.0%

Losers

SMRNuScale Power$8.32-7.9%
IQiQIYI$1.01-7.7%
ASANAsana$9.45-6.4%
QCOMQualcomm$178.02-5.7%
GMGeneral Motors$82.35-4.9%

Bitcoin miners owned Thursday's close, led by Marathon Digital finishing 13.5% higher, with Cipher Mining and Iren both up 7% or more. Large-cap losses ran heavier than usual, with Qualcomm off 5.66% and General Motors down 4.93%.