City Office REIT, Inc. (CIO)
CIO moved a median of 0.00% 30 minutes after news, and -0.14% by the close. How CIO actually reacts to news — the realized, point-in-time move the market made, measured across 160 labeled events over the last three years with zero look-ahead.
CIO’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 45% | 137 |
| 30-min | 0.00% | 40% | 149 |
| 60-min | 0.00% | 47% | 149 |
| to close | -0.14% | 40% | 149 |
| Middle 50% of CIO reactions | -0.49% to +0.33% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 160 |
Half of all City Office REIT, Inc. news events land between -0.49% and +0.33% 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 CIO moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to CIO's baseline. Nothing else.
Recent CIO events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K City Office REIT, Inc. For: Jan 09 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| MCME Carell Completes Acquisition of City Office REIT | Press release | Business Wire | — | — | |
| City Office REIT Announces Tax Treatment of 2025 Distributions | Press release | PR Newswire | +0.07% | +0.00% | |
| Form 8-K City Office REIT, Inc. For: Dec 04 | SEC filing · Form 8-K | SEC EDGAR | -1.01% | +0.58% | |
| Form 8-K City Office REIT, Inc. For: Nov 23 | SEC filing · Form 8-K | SEC EDGAR | +0.15% | -0.73% | |
| Form 10-Q City Office REIT, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.11% | -0.14% | |
| Form 8-K City Office REIT, Inc. For: Oct 16 | SEC filing · Form 8-K | SEC EDGAR | +0.14% | +0.00% | |
| City Office REIT Stockholders Approve Merger | Press release | PR Newswire | +0.14% | +0.00% | |
| Form 8-K City Office REIT, Inc. For: Oct 07 | SEC filing · Form 8-K | SEC EDGAR | -0.14% | -0.14% | |
| Oksenholt Capital Slams City Office REIT’s “Lowball” Elliott Capital Offer, Calls for New Leadership and Strategic Restructuring | Press release | Business Wire | -0.14% | -0.14% | |
| City Office REIT Announces Preferred Stock Dividends for Third Quarter 2025 | Press release | PR Newswire | +0.00% | +0.00% | |
| Form DEFM14A City Office REIT, Inc. | SEC filing · Form DEFM14A | SEC EDGAR | +0.00% | -0.14% | |
| Form PREM14A City Office REIT, Inc. For: Aug 22 | SEC filing · Form PREM14A | SEC EDGAR | +0.00% | -0.14% | |
| City Office REIT Announces First Closing of Phoenix Portfolio Sale | Press release | PR Newswire | +0.00% | -0.14% | |
| Form 8-K City Office REIT, Inc. For: Aug 15 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.14% | |
| Form DEFA14A City Office REIT, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | -0.14% | |
| City Office REIT Reports Second Quarter 2025 Results | Press release | PR Newswire | +0.22% | +0.29% | |
| Form 10-Q City Office REIT, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.22% | +0.29% | |
| Form 8-K City Office REIT, Inc. For: Jul 31 | SEC filing · Form 8-K | SEC EDGAR | +0.22% | +0.29% | |
| Form DEFA14A City Office REIT, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.22% | +0.29% | |
| CIO Stock Alert: Halper Sadeh LLC Is Investigating Whether the Sale of City Office REIT, Inc. Is Fair to Shareholders | Press release | Business Wire | -0.29% | -0.14% | |
| City Office REIT Enters into Definitive Agreement for Sale at $7.00 per Share of Common Stock in Transaction Valued at Approximately $1.1 Billion | Press release | PR Newswire | -0.29% | -0.14% | |
| Form 8-K City Office REIT, Inc. For: Jul 23 | SEC filing · Form 8-K | SEC EDGAR | -0.29% | -0.14% | |
| Form DEFA14A City Office REIT, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | -0.29% | -0.14% | |
| City Office REIT Announces Second Quarter 2025 Earnings Release and Conference Call | Press release | PR Newswire | +0.20% | +1.04% | |
| City Office REIT Announces Dividends for Second Quarter 2025 | Press release | PR Newswire | -0.55% | -1.47% | |
| Form S-8 City Office REIT, Inc. | SEC filing · Form S-8 | SEC EDGAR | +0.00% | -0.61% | |
| Form 8-K City Office REIT, Inc. For: May 01 | SEC filing · Form 8-K | SEC EDGAR | -0.20% | -0.20% | |
| City Office REIT Reports First Quarter 2025 Results | Press release | PR Newswire | +3.23% | +0.40% | |
| Form 10-Q City Office REIT, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +3.23% | +0.40% | |
| Form 8-K City Office REIT, Inc. For: May 02 | SEC filing · Form 8-K | SEC EDGAR | +3.23% | +0.40% | |
| Form 8-K City Office REIT, Inc. For: Apr 14 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +2.69% | |
| City Office REIT Announces First Quarter 2025 Earnings Release and Conference Call | Press release | PR Newswire | +0.20% | +2.56% | |
| City Office REIT Announces Dividends for First Quarter 2025 | Press release | PR Newswire | -0.20% | -1.38% | |
| Form ARS City Office REIT, Inc. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.00% | -1.03% | |
| Form DEF 14A City Office REIT, Inc. For: May 01 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -1.03% | |
| Form DEFA14A City Office REIT, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | -1.03% | |
| City Office REIT Reports Fourth Quarter and Full Year 2024 Results | Press release | PR Newswire | +1.60% | +3.20% | |
| Form 10-K City Office REIT, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.60% | +3.20% | |
| Form 8-K City Office REIT, Inc. For: Feb 20 | SEC filing · Form 8-K | SEC EDGAR | +1.60% | +3.20% | |
| City Office REIT Announces Tax Treatment of 2024 Distributions | Press release | PR Newswire | +1.19% | +3.16% | |
| City Office REIT Announces Fourth Quarter and Full Year 2024 Earnings Release and Conference Call | Press release | PR Newswire | +0.61% | +3.47% | |
| City Office REIT Provides Update on Impactful Leasing | Press release | PR Newswire | +0.00% | +1.72% | |
| City Office REIT Announces Dividends for Fourth Quarter 2024 | Press release | PR Newswire | +0.60% | -2.24% | |
| City Office REIT Reports Third Quarter 2024 Results | Press release | PR Newswire | -2.02% | -5.71% | |
| Form 10-Q City Office REIT, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -2.02% | -5.71% | |
| Form 8-K City Office REIT, Inc. For: Oct 31 | SEC filing · Form 8-K | SEC EDGAR | -2.02% | -5.71% | |
| Form EFFECT City Office REIT, Inc. | SEC filing · Form EFFECT | SEC EDGAR | -0.87% | +1.22% | |
| Form S-3/A City Office REIT, Inc. | SEC filing · Form S-3 | SEC EDGAR | -0.72% | -1.79% | |
| City Office REIT Announces Third Quarter 2024 Earnings Release and Conference Call | Press release | PR Newswire | +0.00% | -0.52% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the CIO section they belong to.
Where else CIO is measured.
CIO earnings → · Analyst actions → · SEC filings →
Other Real Estate names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| INVESCO MORTGAGE CAPITAL INC (IVR) | 163 | -0.14% | 41% |
| Paramount Group, Inc. (PGRE) | 163 | +0.08% | 53% |
| Industrial Logistics Properties Trust - Common Shares of Beneficial Interest (ILPT) | 159 | +0.30% | 55% |
| Kite Realty Group Trust (KRG) | 158 | -0.17% | 40% |
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 Real Estate names, measured the same way →
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 City Office REIT, Inc.'s median reaction calculated?
Every labeled CIO 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 160 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. 40% of CIO'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 CIO'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.