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Byline Bancorp BY

US equityMarket cap rank #2897
$37.63 −$0.11 (-0.29%)
Market closed · Oct 5, 10:20 pm ET · Last extended-hours $37.63 0.00%
Open$37.82
Prev close$37.74
Day range$37.29 – $37.89
Volume183.2K
Market cap$1.70B
P/E (TTM)11.3
Dividend yield1.17%

Ownership & positioning

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

Institutional ownership55.8%-0.02 pts vs. prior quarter
Institutions holding254-1 vs. prior quarter
Insider trades (recent)26 buys / 24 sellsNet buying
Short interest2.57% of floatDays to cover 3.6 · as of 15 Sep 2026
Short-sale volume share23.0%5-day average of daily volume

Short-sale volume as % of daily volume

15%20%25%29%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: +$1.02M (8 inflow days, 12 outflow days).

The five largest holders on file together own 45.2% of shares outstanding.

Largest holders

  • Antonio Del Valle Perochena25.62%
  • BlackRock7.77%
  • Dimensional Fund Advisors5.37%
  • T. Rowe Price Group, Inc.3.37%
  • Vanguard Capital Management, LLC3.10%
  • State Street Global Advisors2.41%
  • American Century Investment Management2.24%
  • Boston Partners Global Investors, Inc.1.96%

By investor type

  • Mutual Fund46.13%
  • Individual/Insider28.16%
  • Hedge Fund6.89%
  • Public Company1.93%
  • Government Pension Fund0.44%
  • Private Company0.31%
  • VC/PE Fund0.04%
  • Corporate Pension Plan0.04%

Reported short interest has risen from 1.74% to 2.57% 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 1,162,318 2.6% 3.6
31 Aug 2026 987,601 2.2% 4.1
14 Aug 2026 866,840 1.9% 4.5
31 Jul 2026 877,233 1.9% 2.8
15 Jul 2026 972,062 2.1% 3.1
30 Jun 2026 788,915 1.7% 1.8

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