Rubico Inc. (RUBI) - What You Need to Know

Rubico Inc. went public on the Nasdaq in August 2025. Instead of tech or software, this company focuses entirely on the old-school business of shipping crude oil across the globe.

Before you consider putting your hard-earned money into this stock, here is a plain-English breakdown of how the company works, how they make money, and the major risks you should know about.

1. What does this company actually do?

Based in Greece, Rubico owns just two modern oil tankers: the Eco Malibu and the Eco West Coast. Both are about four and a half years old.

These are "Suezmax" ships, which are specially sized to squeeze through the Suez Canal while fully loaded. Each one can carry about 157,000 tons of crude oil across global ocean routes.

A quick heads-up: The company didn't provide much detail about plans to expand their fleet in their filing, so for now, these two ships are all they have to work with.

2. How do they make money?

Rubico rents its two tankers to major oil companies under long-term contracts.

However, Rubico doesn't actually run the ships themselves. They pay an outside company, Central Shipping Inc. (CSI), to handle the daily operations. Here is the catch: the family of Rubico's founder, Evangelos J. Pistiolis, controls CSI. Because of this insider setup, Rubico pays heavy fees directly to the founder's family:

• Daily Fees: $651 per ship daily, plus an extra $592 daily for inspector visits.
• Commissions: CSI takes a 1.25% cut of all rental revenue, plus 1% of the price of any ship Rubico buys or sells.
• Automatic Price Hikes: These fees are set to rise by at least 2% every single year.

3. How do they raise money?

When Rubico needs cash, they tend to get it in ways that can heavily reduce your ownership percentage as a regular shareholder.

• The "Unit" Deal: Rubico sells "Units" for about $0.61. Each unit contains one share of stock and one voucher (called a warrant) to buy another share later. On the fourth and eighth days of trading, the price to use that voucher drops to about $0.30. Even worse, a "zero-cash" option lets voucher holders trade one voucher for up to four shares of stock. This forces Rubico to hand over shares without getting any actual cash in return.
• The $30 Million Stock Line: Rubico has a deal where they can sell up to $30 million in stock to an investment firm called B. Riley whenever they want. They have already sold over 2.1 million shares this way.

4. What are the main risks?

If you are thinking about investing, you need to be comfortable with some very high risks:

• Zero Voting Power: The founder's family trust controls 100% of the voting power through special "Series D" shares. As a regular investor, you get absolutely zero say in how the company is run.
• Massive Share Flooding (Dilution): Rubico has about 17.6 million regular shares. If voucher holders decide to use their "zero-cash" option, Rubico will have to issue up to 56 million new shares. This would balloon the share count to over 74 million, slashing your ownership percentage by over 75% and likely crushing the stock price.
• Only Two Ships: With just two vessels, Rubico has no backup plan. If one ship breaks down, gets stuck, or needs repairs, the company instantly loses half of its business.
• Selling and Renting Back Their Ships: To deal with $84 million of debt, Rubico is selling its only two tankers and renting them back. This December 2025 deal trades traditional bank debt for expensive, long-term rental payments.
• Global Chaos and Oil Swings: Profits depend entirely on global oil demand, OPEC decisions, and military conflicts (especially in the Middle East and the Red Sea). If shipping rates drop, Rubico might have to rent its ships out at a loss, which would also tank the resale value of the vessels.
• No Dividends and Rising Costs: Rubico has never paid a dividend to shareholders. Meanwhile, inflation and high interest rates threaten to push up their operating expenses and borrowing costs, eating away at any potential profits.

5. Where does it trade?

Rubico trades on the Nasdaq under the ticker symbol RUBI (and has been trading there since August 4, 2025).

Quick Summary: Should you invest?

• Invest if: You want to take a high-risk, high-reward gamble on the global oil shipping market, you fully understand how their complex voucher system can dilute your shares, and you are perfectly fine having absolutely no voting power.
• Pass if: You want a stable, transparent, and growing investment. Rubico is incredibly risky. The company could flood the market with up to 74 million shares, they owe $84 million in rent-back obligations on their only two ships, the founder's family controls all the votes while taking heavy fees, and the business is highly vulnerable to volatile global oil markets.