Stellar Bancorp, Inc. (STEL)
STEL moved a median of +0.05% 30 minutes after news, and 0.00% by the close. How STEL actually reacts to news — the realized, point-in-time move the market made, measured across 236 labeled events over the last three years with zero look-ahead.
STEL’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 47% | 236 |
| 30-min | +0.05% | 53% | 236 |
| 60-min | 0.00% | 47% | 236 |
| to close | 0.00% | 49% | 235 |
| Middle 50% of STEL reactions | -0.36% to +0.56% |
|---|---|
| Median reaction (30-min) | +0.05% |
| Measured reactions | 236 |
Half of all Stellar Bancorp, Inc. news events land between -0.36% and +0.56% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when STEL moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to STEL's baseline. Nothing else.
Recent STEL events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Stellar Bancorp, Inc. Announces Quarterly Dividend | Press release | Business Wire | -0.32% | +0.81% | |
| Stellar Bancorp, Inc. Reports First Quarter 2026 Results | Press release | Business Wire | +1.14% | +0.00% | |
| Prosperity Bancshares and Stellar Bancorp Announce Receipt of Regulatory Approvals for Prosperity’s Pending Acquisition of Stellar | Press release | Business Wire | +0.03% | +0.43% | |
| Form 10-K Stellar Bancorp, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.47% | -0.69% | |
| Form 8-K Stellar Bancorp, Inc. For: Feb 25 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.63% | |
| Stellar Bancorp, Inc. Announces Quarterly Dividend | Press release | Business Wire | +0.00% | +0.63% | |
| Lifshitz Law PLLC Announces Investigations of Stellar Bancorp, Inc. (NYSE: STEL), Gold Resource Corporation (NYSE: GORO), SkyWater Technology, Inc. (Nasdaq: SKYT), and Nathan’s Famous, Inc. (Nasdaq: NATH) | Press release | ACCESS Newswire | +0.68% | -0.10% | |
| Form 8-K Stellar Bancorp, Inc. For: Jan 27 | SEC filing · Form 8-K | SEC EDGAR | +0.44% | +1.79% | |
| Form 8-K Stellar Bancorp, Inc. For: Jan 28 | SEC filing · Form 8-K | SEC EDGAR | +1.52% | +2.42% | |
| STEL MERGER INVESTIGATION: Halper Sadeh LLC is Investigating Whether the Sale of Stellar Bancorp, Inc. is Fair to Shareholders | Press release | Business Wire | +0.17% | +0.14% | |
| Stellar Bancorp, Inc. Reports Fourth Quarter 2025 Results | Press release | Business Wire | +1.52% | +2.42% | |
| Stellar Bancorp, Inc. Announces Fourth Quarter 2025 Earnings Release and Conference Call Date | Press release | Business Wire | +0.00% | +0.51% | |
| Form 8-K Stellar Bancorp, Inc. For: Nov 20 | SEC filing · Form 8-K | SEC EDGAR | +0.71% | +3.19% | |
| Stellar Bancorp, Inc. Announces Increase in Quarterly Dividend | Press release | Business Wire | +0.71% | +3.19% | |
| Form 10-Q Stellar Bancorp, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.05% | -0.80% | |
| Form 8-K Stellar Bancorp, Inc. For: Oct 24 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +1.40% | |
| Stellar Bancorp, Inc. Reports Third Quarter 2025 Results | Press release | Business Wire | +0.00% | +1.40% | |
| Stellar Bancorp, Inc. Announces Third Quarter 2025 Earnings Release and Conference Call Date | Press release | Business Wire | -0.57% | +1.10% | |
| Form 8-K Stellar Bancorp, Inc. For: Aug 29 | SEC filing · Form 8-K | SEC EDGAR | +1.51% | +1.15% | |
| Form 8-K Stellar Bancorp, Inc. For: Aug 27 | SEC filing · Form 8-K | SEC EDGAR | -1.02% | -1.43% | |
| Stellar Bancorp, Inc. Announces Quarterly Dividend | Press release | Business Wire | -1.02% | -1.43% | |
| Form S-8 Stellar Bancorp, Inc. | SEC filing · Form S-8 | SEC EDGAR | -0.32% | — | |
| Form 10-Q Stellar Bancorp, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.57% | -0.77% | |
| Form 8-K Stellar Bancorp, Inc. For: Jul 25 | SEC filing · Form 8-K | SEC EDGAR | -1.68% | -2.12% | |
| Stellar Bancorp, Inc. Reports Second Quarter 2025 Results | Press release | Business Wire | -1.68% | -2.12% | |
| Stellar Bancorp, Inc. Announces Second Quarter 2025 Earnings Release and Conference Call Date | Press release | Business Wire | +0.03% | +0.23% | |
| Form 8-K Stellar Bancorp, Inc. For: Jun 12 | SEC filing · Form 8-K | SEC EDGAR | +0.57% | -0.19% | |
| Form 8-A12B Stellar Bancorp, Inc. | SEC filing · Form 8-A12B | SEC EDGAR | +0.00% | +1.88% | |
| Form CERT Stellar Bancorp, Inc. | SEC filing · Form CERT | SEC EDGAR | +0.00% | +1.88% | |
| Stellar Bancorp, Inc. Announces Dual Listing on NYSE Texas | Press release | Business Wire | +0.00% | +1.88% | |
| Form 8-K Stellar Bancorp, Inc. For: May 21 | SEC filing · Form 8-K | SEC EDGAR | -0.47% | -2.34% | |
| Form 8-K Stellar Bancorp, Inc. For: May 21 | SEC filing · Form 8-K | SEC EDGAR | +1.21% | +2.53% | |
| Stellar Bancorp, Inc. Announces Quarterly Dividend | Press release | Business Wire | +1.21% | +2.53% | |
| Form 10-Q Stellar Bancorp, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.80% | -1.36% | |
| Form 8-K Stellar Bancorp, Inc. For: Apr 25 | SEC filing · Form 8-K | SEC EDGAR | +7.71% | +2.78% | |
| Stellar Bancorp, Inc. Reports First Quarter 2025 Results | Press release | Business Wire | +7.71% | +2.78% | |
| Form 8-K Stellar Bancorp, Inc. For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | -0.32% | +0.41% | |
| Stellar Bancorp, Inc. Announces New Share Repurchase Program and Federal Reserve Membership | Press release | Business Wire | -0.32% | +0.41% | |
| Form ARS Stellar Bancorp, Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.79% | +1.14% | |
| Form DEF 14A Stellar Bancorp, Inc. For: May 21 | SEC filing · Form DEF | SEC EDGAR | +0.79% | +1.14% | |
| Form DEFA14A Stellar Bancorp, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.79% | +1.14% | |
| Stellar Bancorp, Inc. Announces First Quarter 2025 Earnings Release and Conference Call Date | Press release | Business Wire | +0.58% | +2.43% | |
| Form PRE 14A Stellar Bancorp, Inc. For: May 21 | SEC filing · Form PRE | SEC EDGAR | -0.11% | -1.57% | |
| Form 8-K Stellar Bancorp, Inc. For: Feb 26 | SEC filing · Form 8-K | SEC EDGAR | +0.14% | -1.28% | |
| Form 8-K Stellar Bancorp, Inc. For: Mar 04 | SEC filing · Form 8-K | SEC EDGAR | -0.49% | -1.40% | |
| Form 10-K Stellar Bancorp, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.49% | -1.40% | |
| Form 8-K/A Stellar Bancorp, Inc. For: Jan 30 | SEC filing · Form 8-K | SEC EDGAR | -0.49% | -1.40% | |
| Form 8-K Stellar Bancorp, Inc. For: Feb 26 | SEC filing · Form 8-K | SEC EDGAR | +0.67% | +0.81% | |
| Stellar Bancorp, Inc. Announces Quarterly Dividend | Press release | Business Wire | +0.67% | +0.81% | |
| Form 8-K Stellar Bancorp, Inc. For: Jan 30 | SEC filing · Form 8-K | SEC EDGAR | +2.94% | +4.22% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the STEL section they belong to.
Where else STEL is measured.
STEL earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Stellar Bancorp, Inc.'s median reaction calculated?
Every labeled STEL 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 236 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. 53% of STEL'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 STEL'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.