CapStar Financial Holdings, Inc. (CSTR)
CSTR moved a median of -0.07% 30 minutes after news, and -0.16% by the close. How CSTR actually reacts to news — the realized, point-in-time move the market made, measured across 109 labeled events over the last three years with zero look-ahead.
CSTR’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 39% | 82 |
| 30-min | -0.07% | 48% | 83 |
| 60-min | -0.13% | 45% | 83 |
| to close | -0.16% | 46% | 83 |
| Middle 50% of CSTR reactions | -0.65% to +0.98% |
|---|---|
| Median reaction (30-min) | -0.07% |
| Measured reactions | 109 |
Half of all CapStar Financial Holdings, Inc. news events land between -0.65% and +0.98% 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 CSTR moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CSTR's baseline. Nothing else.
Recent CSTR events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 15-12G CapStar Financial Holdin | SEC filing · Form 15-12G | SEC EDGAR | — | — | |
| Form EFFECT CapStar Financial Holdin | SEC filing · Form EFFECT | SEC EDGAR | — | — | |
| Form 8-K CapStar Financial Holdin For: Apr 01 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form POS AM CapStar Financial Holdin | SEC filing · Form POS | SEC EDGAR | — | — | |
| Form S-8 POS CapStar Financial Holdin | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 10-K CapStar Financial Holdin For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.69% | +0.74% | |
| Form 8-K CapStar Financial Holdin For: Feb 29 | SEC filing · Form 8-K | SEC EDGAR | -1.09% | -0.59% | |
| Form 8-K CapStar Financial Holdin For: Feb 20 | SEC filing · Form 8-K | SEC EDGAR | +0.16% | +0.93% | |
| Form 8-K CapStar Financial Holdin For: Feb 16 | SEC filing · Form 8-K | SEC EDGAR | +0.61% | +0.22% | |
| CapStar Financial Holdings, Inc. Announces Quarterly Dividend of $0.11 per Share | Press release | GlobeNewswire | -0.10% | -1.41% | |
| SHAREHOLDER NOTICE: Halper Sadeh LLC Investigates CSTR, EGLE, ICVX | Press release | PR Newswire | -0.10% | -1.41% | |
| Form DEFM14A CapStar Financial Holdin | SEC filing · Form DEFM14A | SEC EDGAR | -0.10% | +0.16% | |
| SHAREHOLDER NOTICE: Halper Sadeh LLC Investigates CSTR, PGTI, THRX | Press release | GlobeNewswire | -0.10% | +0.16% | |
| SHAREHOLDER NOTICE: Halper Sadeh LLC Investigates CSTR, THRX, GRCL, ROVR | Press release | Accesswire | +0.59% | +1.73% | |
| Form 8-K CapStar Financial Holdin For: Jan 02 | SEC filing · Form 8-K | SEC EDGAR | +0.76% | +2.51% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, BVH, CVLY, PGTI | Press release | PR Newswire | +0.55% | +0.22% | |
| STOCKHOLDER ALERT: Juan Monteverde Encourages the Shareholders of CSTR, SRC, ICVX to Take Action | Press release | Accesswire | — | -0.26% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, SRC, ROVR | Press release | PR Newswire | -0.89% | -0.78% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, SIX, ROVR | Press release | PR Newswire | +0.00% | +0.96% | |
| Form 8-K CapStar Financial Holdin For: Dec 13 | SEC filing · Form 8-K | SEC EDGAR | +1.91% | +1.22% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, CVLY, EVFM, EAR | Press release | PR Newswire | +0.00% | +5.15% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, SRC, PATI, GRPH | Press release | GlobeNewswire | -0.34% | -0.90% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates RPT, PCTI, ESMT, CSTR | Press release | PR Newswire | +0.52% | +1.80% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, GRPH | Press release | GlobeNewswire | -0.56% | +0.37% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, EAR, DOC | Press release | Accesswire | +0.50% | +2.05% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, SRC, BBAI | Press release | PR Newswire | -0.03% | +0.55% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, MIRO, SRC | Press release | PR Newswire | +0.13% | -0.56% | |
| Form 10-Q CapStar Financial Holdin For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.06% | -0.62% | |
| Form 8-K CapStar Financial Holdin For: Oct 26 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.73% | |
| SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CSTR, INVO, NM | Press release | PR Newswire | +0.76% | +0.07% | |
| Lifshitz Law PLLC Announces Investigations of CSTR, INVO, ESMT, and NM | Press release | Accesswire | +1.41% | -1.31% | |
| CSTR Stock Alert: Halper Sadeh LLC Is Investigating Whether the Sale of CapStar Financial Holdings, Inc. Is Fair to Shareholders | Press release | Business Wire | -0.27% | +0.07% | |
| CapStar Reports Third Quarter 2023 Results | Press release | GlobeNewswire | -0.84% | -2.77% | |
| Form 8-K CapStar Financial Holdin For: Oct 26 | SEC filing · Form 8-K | SEC EDGAR | -0.84% | -2.77% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CSTR section they belong to.
Where else CSTR is measured.
CSTR earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Virginia National Bankshares Corporation (VABK) | 110 | +0.25% | 56% |
| COMML INTL BK LTD S/GDR (CMGGF) | 109 | 0.00% | 0% |
| HomeTrust Bancshares, Inc. (HTBI) | 109 | 0.00% | 47% |
| KBC GROUP SA UNSP/ADR (KBCSY) | 109 | -0.02% | 37% |
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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How the numbers are made.
How is CapStar Financial Holdings, Inc.'s median reaction calculated?
Every labeled CSTR 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 109 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. 48% of CSTR'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 CSTR'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.