CoastalSouth Bancshares, Inc. (COSO)
COSO moved a median of +0.33% 30 minutes after news, and +0.13% by the close. How COSO actually reacts to news — the realized, point-in-time move the market made, measured across 117 labeled events over the last three years with zero look-ahead.
COSO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.32% | 61% | 108 |
| 30-min | +0.33% | 60% | 110 |
| 60-min | +0.31% | 60% | 110 |
| to close | +0.13% | 52% | 108 |
| Middle 50% of COSO reactions | -0.25% to +1.09% |
|---|---|
| Median reaction (30-min) | +0.33% |
| Measured reactions | 117 |
Half of all CoastalSouth Bancshares, Inc. news events land between -0.25% and +1.09% 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 COSO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to COSO's baseline. Nothing else.
Recent COSO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 10-Q CoastalSouth Bancshares, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +1.75% | — | |
| Form 8-K CoastalSouth Bancshares, For: Jul 23 | SEC filing · Form 8-K | SEC EDGAR | +0.26% | +0.66% | |
| CoastalSouth Bancshares, Inc. Reports Earnings for Second Quarter 2026 | Press release | Business Wire | +2.27% | +0.91% | |
| Form 8-K CoastalSouth Bancshares, For: Jul 20 | SEC filing · Form 8-K | SEC EDGAR | +2.27% | +0.91% | |
| Form 10-Q CoastalSouth Bancshares, For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.39% | -2.43% | |
| Coastal States Bank Announces Small Business Loan Program With 48-Hour Lending Decisions | Press release | Business Wire | +0.08% | -0.08% | |
| CoastalSouth Bancshares, Inc. Announces Stock Repurchase Plan | Press release | Business Wire | +0.08% | -0.66% | |
| Form 8-K CoastalSouth Bancshares, For: Apr 30 | SEC filing · Form 8-K | SEC EDGAR | +0.08% | -0.66% | |
| Form 8-K CoastalSouth Bancshares, For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | +2.69% | +1.07% | |
| CoastalSouth Bancshares, Inc. Reports Earnings for First Quarter 2026 | Press release | Business Wire | +1.55% | -3.14% | |
| Form 8-K CoastalSouth Bancshares, For: Apr 20 | SEC filing · Form 8-K | SEC EDGAR | +1.55% | -3.14% | |
| Form ARS CoastalSouth Bancshares, For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.62% | -0.83% | |
| Form DEF 14A CoastalSouth Bancshares, For: Dec 31 | SEC filing · Form DEF | SEC EDGAR | +0.62% | -0.83% | |
| Form DEFA14A CoastalSouth Bancshares, | SEC filing · Form DEFA14A | SEC EDGAR | +0.62% | -0.83% | |
| Form 10-K CoastalSouth Bancshares, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.62% | -0.83% | |
| Form S-8 CoastalSouth Bancshares, | SEC filing · Form S-8 | SEC EDGAR | +0.62% | -0.83% | |
| Form 8-K CoastalSouth Bancshares, For: Feb 26 | SEC filing · Form 8-K | SEC EDGAR | +1.54% | -0.73% | |
| Coastal States Bank Donates $136,000 to Charities in Community Commitment Initiative | Press release | Business Wire | — | +0.24% | |
| CoastalSouth Bancshares, Inc. Announces Quarterly Cash Dividend On Common Stock | Press release | Business Wire | +0.08% | -0.04% | |
| CoastalSouth Bancshares, Inc. Reports Earnings for Fourth Quarter 2025 | Press release | Business Wire | +1.18% | +1.09% | |
| Form 8-K CoastalSouth Bancshares, For: Jan 20 | SEC filing · Form 8-K | SEC EDGAR | +1.18% | +1.09% | |
| Coastal States Bank Expands into Charleston, Announces Local Commercial Banking Team | Press release | Business Wire | +0.00% | +0.34% | |
| Coastal States Bank Celebrates Initial Public Offering and NYSE Listing of its Holding Company with Opening Bell Ceremony | Press release | Business Wire | +0.00% | -0.73% | |
| Form 8-K CoastalSouth Bancshares, For: Nov 18 | SEC filing · Form 8-K | SEC EDGAR | -0.24% | -0.52% | |
| Form 10-Q CoastalSouth Bancshares, For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.47% | -0.42% | |
| Form 8-K CoastalSouth Bancshares, For: Oct 20 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.14% | |
| CoastalSouth Bancshares, Inc. Reports Earnings for Third Quarter 2025 | Press release | Business Wire | +0.00% | -0.14% | |
| Will Rivenbark Joins Coastal States Bank as Executive Vice President, Head of Commercial Real Estate Lending | Press release | Business Wire | +1.27% | +1.32% | |
| David DeLucia Joins Coastal States Bank as Vice President, Business Banker | Press release | Business Wire | -0.17% | -1.21% | |
| Carol Stone of Coastal States Bank Inducted into the Home Builders Association of Georgia Hall of Fame | Press release | Business Wire | +0.13% | +1.02% | |
| Coastal States Bank Welcomes Ronye Cooper and SJ Lofton to its Retail Banking Team in Atlanta | Press release | Business Wire | +0.21% | +0.99% | |
| Form 8-K CoastalSouth Bancshares, For: Sep 15 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.99% | |
| Coastal States Bank Appoints Laura Fraser as Lowcountry Market President | Press release | Business Wire | +0.02% | +1.76% | |
| Form 10-Q CoastalSouth Bancshares, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | — | |
| Coastal States Bank Strengthens its Senior Leadership Team: Appoints Rhonda Thornton as Chief Retail and Experience Officer, Brian Smith as Coastal Regional President, and Jeremy Summerell as Savannah Market President | Press release | Business Wire | +0.00% | -2.15% | |
| CoastalSouth Bancshares, Inc. Reports Earnings for Second Quarter 2025 | Press release | Business Wire | -0.70% | — | |
| Form 8-K CoastalSouth Bancshares, For: Jul 28 | SEC filing · Form 8-K | SEC EDGAR | -0.70% | — | |
| Form S-8 CoastalSouth Bancshares, | SEC filing · Form S-8 | SEC EDGAR | -0.51% | -1.16% | |
| Form EFFECT CoastalSouth Bancshares, | SEC filing · Form EFFECT | SEC EDGAR | +0.00% | +0.00% | |
| Form 8-A12B CoastalSouth Bancshares, | SEC filing · Form 8-A12B | SEC EDGAR | — | +3.19% | |
| Form CERT CoastalSouth Bancshares, | SEC filing · Form CERT | SEC EDGAR | — | +0.14% | |
| Form S-1/A CoastalSouth Bancshares, | SEC filing · Form S-1 | SEC EDGAR | +0.00% | +4.76% | |
| Form S-1 CoastalSouth Bancshares, | SEC filing · Form S-1 | SEC EDGAR | — | — | |
| Coastal States Bank announces Scott Hall as Senior Vice President, Commercial Banker | Press release | PR Newswire | — | — | |
| Terence Lewis joins Coastal States Bank as Senior Vice President, Commercial Banker | Press release | PR Newswire | -2.93% | -2.93% | |
| Gavin Shook joins Coastal States Bank as Commercial Banker | Press release | PR Newswire | — | — | |
| CoastalSouth Bancshares, Inc. and Coastal States Bank Announce Changes to Boards of Directors | Press release | PR Newswire | +0.00% | +0.00% | |
| Tyler Featherston joins Coastal States Bank's Government Guaranteed Lending Team | Press release | PR Newswire | — | — | |
| Form D CoastalSouth Bancshares, | SEC filing · Form D | SEC EDGAR | +0.00% | +0.00% | |
| Rosaline Fletcher, Steven Gussen, Brian Sheets and Chad Skogen join Coastal States Bank's Government Guaranteed Lending Team | Press release | PR Newswire | — | +0.00% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the COSO section they belong to.
Where else COSO is measured.
COSO earnings → · Analyst actions → · SEC filings →
Every ticker we measure the same way24
Apple (AAPL)
How AAPL actually reacts to news, measured.
NVIDIA (NVDA)
How NVDA actually reacts to news, measured.
Tesla (TSLA)
How TSLA actually reacts to news, measured.
Microsoft (MSFT)
How MSFT actually reacts to news, measured.
Advanced Micro Devices (AMD)
How AMD actually reacts to news, measured.
Amazon (AMZN)
How AMZN actually reacts to news, measured.
Alphabet (GOOG)
How GOOG actually reacts to news, measured.
Meta Platforms (META)
How META actually reacts to news, measured.
Broadcom (AVGO)
How AVGO actually reacts to news, measured.
JPMorgan Chase (JPM)
How JPM actually reacts to news, measured.
Visa (V)
How V actually reacts to news, measured.
Walmart (WMT)
How WMT actually reacts to news, measured.
Eli Lilly (LLY)
How LLY actually reacts to news, measured.
UnitedHealth Group (UNH)
How UNH actually reacts to news, measured.
Netflix (NFLX)
How NFLX actually reacts to news, measured.
Johnson & Johnson (JNJ)
How JNJ actually reacts to news, measured.
Exxon Mobil (XOM)
How XOM actually reacts to news, measured.
Home Depot (HD)
How HD actually reacts to news, measured.
Costco (COST)
How COST actually reacts to news, measured.
Mastercard (MA)
How MA actually reacts to news, measured.
Oracle (ORCL)
How ORCL actually reacts to news, measured.
Salesforce (CRM)
How CRM actually reacts to news, measured.
Bank of America (BAC)
How BAC actually reacts to news, measured.
Coca-Cola (KO)
How KO actually reacts to news, measured.
Walt Disney (DIS)
How DIS actually reacts to news, measured.
Browse all tickers
Every name we’ve measured, in one place.
How the numbers are made.
How is CoastalSouth Bancshares, Inc.'s median reaction calculated?
Every labeled COSO 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 117 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. 60% of COSO'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 COSO'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.