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Upstart UPST

US equityMarket cap rank #2665Credit Services
$24.35 +$1.54 (+6.75%)
Pre-market · Oct 6, 5:50 am ET · After hours $24.36 +0.04%
Open$22.94
Prev close$22.81
Day range$22.72 – $24.45
Volume6.21M
Market cap$2.37B
P/E (TTM)46.8
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership65.5%-0.07 pts vs. prior quarter
Institutions holding431+0 vs. prior quarter
Insider trades (recent)25 buys / 25 sellsBalanced
Short interest28.41% of floatDays to cover 6.9 · as of 15 Sep 2026
Short-sale volume share23.7%5-day average of daily volume

Short-sale volume as % of daily volume

19%22%24%27%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$27.82M (6 inflow days, 14 outflow days).

The five largest holders on file together own 33.1% of shares outstanding.

Largest holders

  • David Girouard12.07%
  • BlackRock8.10%
  • Citadel Securities LLC4.63%
  • Vanguard Capital Management, LLC4.42%
  • Vanguard Portfolio Management, LLC3.84%
  • Marshall Wace LLP2.44%
  • Morgan Stanley2.38%
  • Geode Capital Management, LLC2.29%

By investor type

  • Mutual Fund36.22%
  • Individual/Insider14.02%
  • Hedge Fund10.16%
  • Private Company8.85%
  • Public Company8.81%
  • Family Office/Trust0.56%
  • Government Pension Fund0.53%
  • Insurance Company0.25%

Reported short interest has risen from 27.00% to 28.41% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 27,649,788 28.4% 6.9
31 Aug 2026 25,946,861 26.7% 6.2
14 Aug 2026 24,779,256 25.5% 4.7
31 Jul 2026 25,223,623 26.4% 7.3
15 Jul 2026 26,176,982 27.3% 7.1
30 Jun 2026 25,838,509 27.0% 5.6

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