Byline Bancorp, Inc. (BY)
BY moved a median of -0.05% 30 minutes after news, and 0.00% by the close. How BY actually reacts to news — the realized, point-in-time move the market made, measured across 278 labeled events over the last three years with zero look-ahead.
BY’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 35% | 266 |
| 30-min | -0.05% | 45% | 278 |
| 60-min | +0.04% | 51% | 278 |
| to close | 0.00% | 49% | 276 |
| Middle 50% of BY reactions | -0.41% to +0.39% |
|---|---|
| Median reaction (30-min) | -0.05% |
| Measured reactions | 278 |
Half of all Byline Bancorp, Inc. news events land between -0.41% and +0.39% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How BY reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Rating reiterations | 21 | +0.04% | 52% | -0.15% |
| Price-target raises | 10 | +0.01% | 50% | -0.07% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 4 further classes were observed with fewer than 10 measured events and are not published. See how BY ranks against every other measured name →
That’s how BY usually reacts — get an email when it moves on news →Email me when BY moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to BY's baseline. Nothing else.
Recent BY events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Byline Bank Named to American Banker’s 2026 Best Banks to Work For | Press release | GlobeNewswire | +0.05% | -0.19% | |
| Byline Bancorp, Inc. Names Sean H. McGuire Chief Commercial Banking Officer and Scott E. Hawthorne Chief Credit Officer as Part of Ongoing Succession Planning | Press release | Business Wire | +0.00% | -1.03% | |
| Form 8-K BYLINE BANCORP, INC. For: Oct 08 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.03% | |
| Byline Bancorp, Inc. and Illinois State Bancorp, Inc. Announce Definitive Merger Agreement | Press release | Business Wire | -0.54% | -1.08% | |
| Form 8-K BYLINE BANCORP, INC. For: Oct 06 | SEC filing · Form 8-K | SEC EDGAR | -0.54% | -1.08% | |
| Byline Bancorp, Inc. to Announce Third Quarter 2026 Financial Results on Thursday, October 22 | Press release | Business Wire | +0.30% | +2.17% | |
| Byline Bank Named a 2026 ‘Best Place to Work for Women’ by Best Companies Group | Press release | GlobeNewswire | +0.45% | -0.58% | |
| Form 10-Q BYLINE BANCORP, INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.33% | -0.74% | |
| Byline Bank and Lithic Partner to Expand Fintech Banking Capabilities | Press release | GlobeNewswire | -0.08% | -0.74% | |
| Byline Bancorp, Inc. Reports Second Quarter 2026 Financial Results | Press release | Business Wire | +0.08% | +0.55% | |
| Form 8-K BYLINE BANCORP, INC. For: Jul 23 | SEC filing · Form 8-K | SEC EDGAR | +0.08% | +0.55% | |
| Byline Bank Honored with SBA Lender of the Year Award in Illinois | Press release | GlobeNewswire | -0.03% | -0.18% | |
| Byline Bancorp, Inc. to Announce Second Quarter 2026 Financial Results on Thursday, July 23 | Press release | Business Wire | +0.00% | +0.87% | |
| NIRI Chicago Elects 2026-2027 Officers and Directors | Press release | Business Wire | +0.11% | -1.32% | |
| Byline Bank Named ‘Lender of the Year’ at the Illinois Real Estate Journal’s 2026 Real Estate Awards Gala | Press release | GlobeNewswire | +0.01% | +0.10% | |
| Form 8-K BYLINE BANCORP, INC. For: Jun 02 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -1.12% | |
| Form S-8 BYLINE BANCORP, INC. | SEC filing · Form S-8 | SEC EDGAR | +0.00% | +0.81% | |
| Byline Bank Provides $26.5 Million Construction Loan for Industrial Development on Florida’s Space Coast | Press release | GlobeNewswire | +0.24% | +0.34% | |
| Form 8-K BYLINE BANCORP, INC. For: May 22 | SEC filing · Form 8-K | SEC EDGAR | +0.44% | +0.60% | |
| Byline Bank Named a 2026 Best Workplace in Illinois | Press release | GlobeNewswire | +0.00% | -1.14% | |
| Form 10-Q BYLINE BANCORP, INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -1.14% | |
| Form DEFA14A BYLINE BANCORP, INC. | SEC filing · Form DEFA14A | SEC EDGAR | +0.72% | +1.82% | |
| Byline Bancorp, Inc. Reports First Quarter 2026 Financial Results | Press release | Business Wire | +0.72% | +1.82% | |
| Form 8-K BYLINE BANCORP, INC. For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | +0.72% | +1.82% | |
| Form ARS BYLINE BANCORP, INC. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.00% | -0.36% | |
| Form DEF 14A BYLINE BANCORP, INC. For: Apr 17 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -0.36% | |
| Byline Bank Honored as a U.S. Best-in-Class Employer by Gallagher | Press release | GlobeNewswire | — | +0.09% | |
| Form S-3ASR BYLINE BANCORP, INC. | SEC filing · Form S-3ASR | SEC EDGAR | +0.76% | +0.27% | |
| Byline Bancorp, Inc. to Announce First Quarter 2026 Financial Results on Thursday, April 23 | Press release | Business Wire | +0.05% | +0.91% | |
| Byline Bank Named to Newsweek’s America’s Greatest Midsize Workplaces for Women 2026 | Press release | GlobeNewswire | +0.10% | +0.32% | |
| Form 10-K BYLINE BANCORP, INC. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.03% | +3.22% | |
| Byline Bancorp, Inc. Reports Fourth Quarter and Full Year 2025 Financial Results | Press release | Business Wire | +4.37% | +0.88% | |
| Form 8-K BYLINE BANCORP, INC. For: Jan 22 | SEC filing · Form 8-K | SEC EDGAR | +4.37% | +0.88% | |
| Byline Bancorp, Inc. to Announce Fourth Quarter 2025 Financial Results on Thursday, January 22 | Press release | Business Wire | +0.38% | -0.03% | |
| Byline Bancorp Announces Approval of New Stock Repurchase Program | Press release | Business Wire | +0.43% | +0.95% | |
| Form 8-K BYLINE BANCORP, INC. For: Dec 11 | SEC filing · Form 8-K | SEC EDGAR | +0.43% | +0.95% | |
| Byline Bank Named to America’s Best Workplaces for 2026 | Press release | GlobeNewswire | +0.08% | +1.89% | |
| Form 10-Q BYLINE BANCORP, INC. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +0.04% | |
| Form S-4/A BYLINE BANCORP, INC. | SEC filing · Form S-4 | SEC EDGAR | +0.00% | +0.90% | |
| Byline Bancorp, Inc. Reports Third Quarter 2025 Financial Results | Press release | Business Wire | -2.32% | +0.54% | |
| Form 8-K BYLINE BANCORP, INC. For: Oct 23 | SEC filing · Form 8-K | SEC EDGAR | -2.32% | +0.54% | |
| Chicago Sun-Times Names Byline Bank a 2025 Chicago’s Best Workplace | Press release | GlobeNewswire | +0.25% | +0.22% | |
| Form 8-K BYLINE BANCORP, INC. For: Oct 01 | SEC filing · Form 8-K | SEC EDGAR | -0.11% | -1.49% | |
| Byline Bancorp, Inc. to Announce Third Quarter 2025 Financial Results on Thursday, October 23 | Press release | Business Wire | -0.73% | +0.73% | |
| Byline Bank Announces Sponsorship of Chicago Blackhawks | Press release | GlobeNewswire | -0.04% | -0.50% | |
| Form S-4 BYLINE BANCORP, INC. | SEC filing · Form S-4 | SEC EDGAR | +1.64% | -1.16% | |
| Byline Bank Sponsors Free Rides on Soldier Field Express for Chicago Bears Home Opener on September 8 | Press release | GlobeNewswire | +0.16% | +0.49% | |
| Byline Bank Honored with SBA Lender of the Year Award in Illinois | Press release | GlobeNewswire | -0.14% | — | |
| Form D BYLINE BANCORP, INC. | SEC filing · Form D | SEC EDGAR | -0.19% | — | |
| Byline Bancorp, Inc. Completes Private Placement of $75.0 Million of 6.875% Fixed-to-Floating Rate Subordinated Notes | Press release | Business Wire | -0.74% | -0.19% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the BY section they belong to.
Where else BY is measured.
BY earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Green Dot Corporation Class A, $0.001 par value (GDOT) | 279 | +0.12% | 56% |
| Sierra Bancorp (BSRR) | 278 | -0.30% | 37% |
| Esquire Financial Holdings, Inc. (ESQ) | 277 | +0.02% | 50% |
| FVCBankcorp, Inc. (FVCB) | 276 | 0.00% | 47% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Financial Services names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Byline Bancorp, Inc.'s median reaction calculated?
Every labeled BY news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 278 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 45% of BY's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does BY's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.