Rubico Inc. (RUBI)
RUBI moved a median of -1.88% 30 minutes after news, and -3.16% by the close. How RUBI actually reacts to news — the realized, point-in-time move the market made, measured across 139 labeled events over the last three years with zero look-ahead.
RUBI’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -1.67% | 30% | 137 |
| 30-min | -1.88% | 34% | 138 |
| 60-min | -3.04% | 28% | 138 |
| to close | -3.16% | 24% | 136 |
| Middle 50% of RUBI reactions | -5.63% to +0.97% |
|---|---|
| Median reaction (30-min) | -1.88% |
| Measured reactions | 139 |
Half of all Rubico Inc. news events land between -5.63% and +0.97% 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 RUBI moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to RUBI's baseline. Nothing else.
Recent RUBI events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Rubico Announces $8.5 Million Registered Direct Offering of Senior Convertible Notes and Warrants | Press release | GlobeNewswire | — | — | |
| Form 6-K Rubico Inc. For: Oct 15 | SEC filing · Form 6-K | SEC EDGAR | -7.27% | -4.59% | |
| Form 6-K Rubico Inc. For: Oct 06 | SEC filing · Form 6-K | SEC EDGAR | -0.05% | +2.65% | |
| Rubico Announces Closing of the Acquisition of Additional Newbuilding MR Tanker | Press release | GlobeNewswire | -0.35% | -13.36% | |
| Form 6-K Rubico Inc. For: Sep 25 | SEC filing · Form 6-K | SEC EDGAR | -2.84% | +1.82% | |
| Rubico Announces Record Date of Monday, September 28 and Ex-Dividend Date of Tuesday, October 6 for Previously-Announced 0.50 Common Shares Per Common Share Stock Dividend | Press release | GlobeNewswire | -3.08% | -13.08% | |
| Form 6-K Rubico Inc. For: Sep 21 | SEC filing · Form 6-K | SEC EDGAR | -4.92% | -3.39% | |
| Rubico Announces Transition to Quarterly Reporting of Financial Results | Press release | GlobeNewswire | +0.82% | +5.04% | |
| Form 6-K Rubico Inc. For: Sep 17 | SEC filing · Form 6-K | SEC EDGAR | -1.96% | -15.56% | |
| Rubico Announces Stock Dividend of 0.50 Common Shares for Each Outstanding Common Share with a Record Date of September 28, 2026 | Press release | GlobeNewswire | +21.38% | -1.38% | |
| Form 6-K Rubico Inc. For: Aug 17 | SEC filing · Form 6-K | SEC EDGAR | -1.10% | +3.30% | |
| Rubico Inc. Announces Financial Results for the Six Months Ended June 30, 2026 | Press release | GlobeNewswire | +0.00% | +0.27% | |
| Form 6-K Rubico Inc. For: Jun 30 | SEC filing · Form 6-K | SEC EDGAR | -1.08% | -0.82% | |
| Form 6-K Rubico Inc. For: Aug 06 | SEC filing · Form 6-K | SEC EDGAR | -0.44% | — | |
| Form 6-K Rubico Inc. For: Jul 31 | SEC filing · Form 6-K | SEC EDGAR | +0.45% | -0.45% | |
| Rubico Announces Acquisition of 3rd Newbuilding MR Tanker and a 24% Increase of Potential Gross Revenue Backlog to About $379 Million | Press release | GlobeNewswire | -1.83% | -0.92% | |
| Form 6-K Rubico Inc. For: Jul 24 | SEC filing · Form 6-K | SEC EDGAR | -3.20% | -3.65% | |
| Rubico Inc. Announces Letter of Intent for Acquisition of a High Specification Newbuilding MR Tanker | Press release | GlobeNewswire | -7.12% | -12.25% | |
| Rubico Announces Termination of $30 Million Equity Line of Credit | Press release | GlobeNewswire | +2.87% | +4.10% | |
| Form 6-K Rubico Inc. For: Jul 16 | SEC filing · Form 6-K | SEC EDGAR | -4.67% | -8.39% | |
| Rubico Announces Management Estimate of Net Asset Value to $183.1 Million, a 94% Increase from the Previously Reported NAV | Press release | GlobeNewswire | -8.48% | -45.21% | |
| Form 6-K Rubico Inc. For: Jul 15 | SEC filing · Form 6-K | SEC EDGAR | -1.78% | -5.58% | |
| Form EFFECT Rubico Inc. | SEC filing · Form EFFECT | SEC EDGAR | -1.78% | -5.58% | |
| Rubico Announces Acquisition of Additional Newbuilding MR Tanker and a 33% Increase of Potential Gross Revenue Backlog to About $305 Million | Press release | GlobeNewswire | -1.78% | -5.58% | |
| Rubico Announces Its Decision to Exit the Megayacht Sector and Redeploy Capital towards its Core Tanker Business | Press release | GlobeNewswire | -1.78% | -5.58% | |
| Form 6-K Rubico Inc. For: Jul 09 | SEC filing · Form 6-K | SEC EDGAR | +0.00% | -3.40% | |
| Form F-3/A Rubico Inc. | SEC filing · Form F-3 | SEC EDGAR | — | +0.00% | |
| Form F-1MEF Rubico Inc. | SEC filing · Form F-1MEF | SEC EDGAR | +0.00% | -5.21% | |
| Form F-3 Rubico Inc. | SEC filing · Form F-3 | SEC EDGAR | -1.54% | -7.78% | |
| Form D Rubico Inc. | SEC filing · Form D | SEC EDGAR | -0.17% | -5.07% | |
| Form 6-K Rubico Inc. For: Jun 23 | SEC filing · Form 6-K | SEC EDGAR | -1.38% | -2.92% | |
| Rubico Inc. Announces Reverse Stock Split | Press release | GlobeNewswire | -1.38% | -2.92% | |
| Form 6-K Rubico Inc. For: Jun 12 | SEC filing · Form 6-K | SEC EDGAR | -27.87% | -41.84% | |
| Form 6-K Rubico Inc. For: May 26 | SEC filing · Form 6-K | SEC EDGAR | -4.55% | -4.29% | |
| Form EFFECT Rubico Inc. | SEC filing · Form EFFECT | SEC EDGAR | -2.75% | -3.85% | |
| Rubico Announces Pricing of $5.0 Million Public Offering | Press release | GlobeNewswire | -13.20% | -18.50% | |
| Form F-1 Rubico Inc. | SEC filing · Form F-1 | SEC EDGAR | +2.91% | -16.73% | |
| Form EFFECT Rubico Inc. | SEC filing · Form EFFECT | SEC EDGAR | +0.00% | +0.00% | |
| Form 6-K Rubico Inc. For: Apr 21 | SEC filing · Form 6-K | SEC EDGAR | -2.18% | -0.62% | |
| Form F-1 Rubico Inc. | SEC filing · Form F-1 | SEC EDGAR | -4.66% | -18.91% | |
| Form F-1MEF Rubico Inc. | SEC filing · Form F-1MEF | SEC EDGAR | -5.50% | -4.17% | |
| Form 6-K Rubico Inc. For: Apr 07 | SEC filing · Form 6-K | SEC EDGAR | -6.90% | -10.64% | |
| Form EFFECT Rubico Inc. | SEC filing · Form EFFECT | SEC EDGAR | -0.02% | +3.10% | |
| Rubico Inc. Announces Reverse Stock Split | Press release | GlobeNewswire | +0.78% | +3.47% | |
| Form POS AM Rubico Inc. | SEC filing · Form POS | SEC EDGAR | -1.28% | +2.54% | |
| Form 20-F Rubico Inc. For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | -1.67% | +0.61% | |
| Rubico Announces Filing of 2025 Annual Report on Form 20-F | Press release | GlobeNewswire | -1.67% | +0.61% | |
| Form 6-K Rubico Inc. For: Mar 02 | SEC filing · Form 6-K | SEC EDGAR | -8.27% | -10.79% | |
| Rubico Announces Management Estimate of Net Asset Value to $94.2 Million | Press release | GlobeNewswire | -21.73% | -21.70% | |
| Form 6-K Rubico Inc. For: Feb 23 | SEC filing · Form 6-K | SEC EDGAR | -1.63% | +0.00% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the RUBI section they belong to.
Where else RUBI is measured.
RUBI earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Iteris, Inc. (ITI) | 141 | 0.00% | 46% |
| PEERSTREAM INC (PEER) | 141 | 0.00% | 18% |
| USELL.COM INC (USEL) | 138 | 0.00% | 21% |
| Intevac, Inc. (IVAC) | 137 | +0.12% | 56% |
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.
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How the numbers are made.
How is Rubico Inc.'s median reaction calculated?
Every labeled RUBI 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 139 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. 34% of RUBI'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 RUBI'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.