What it means
Many market participants are judged on quarterly or even daily results. A fund manager who loses money in a bad quarter may lose clients, so the pressure to sell during a dip can be intense, even when the manager believes the company is sound.
That selling pressure can push prices below the value of the business over a longer period. An investor who does not face that pressure can treat the dip as an opportunity.
A family-owned holding company, a sovereign wealth fund or an individual with no near-term need for the money can wait out the volatility. The profit is the reward for patience, and for being willing to look stupid for a while.
Time arbitrage is not the same as classic arbitrage, which is a risk-free profit from price differences between two markets at the same moment. Time arbitrage carries real risk, because the investor is betting that the company's long-term value is intact and that the market will eventually agree.
If the bad news turns out to be permanent, the investor simply owns a falling asset. The idea also appears in other forms.
Some traders exploit calendar patterns, and some businesses accept lower profit this year in exchange for a stronger position later, such as spending heavily on research while competitors cut costs. In every version the common thread is that time itself is the source of the edge.
To use the idea well, a person needs genuine staying power. That means not borrowing so heavily that a price fall forces a sale, holding enough cash to survive without the investment, and having an honest view of what the business is worth.
Without those three things, a long time horizon is only a story.
In practice
Real-world examples.
Example
A family holding company has no need for cash for ten years. When a well-run manufacturer's shares fall 30% after a poor quarter, the family buys more, accepting that the recovery might take several years.
Example
A software company deliberately cuts its short-term profit margin by investing heavily in product development. Competitors focused on quarterly earnings cut their spending, and within three years the company has a superior product and a larger market share.
Example
A retail investor with a steady salary and an emergency fund keeps buying a broad market fund during a downturn. Friends who sold in panic miss the recovery, while the patient investor's holdings return to their previous value.
Formula
Calculation
Gain = (recovery price - purchase price) / purchase price
Annualised gain = (1 + total gain) ^ (1 / years) - 1
A company's shares are worth about $100 but fall to $80 after a quarter of disappointing results that management says is temporary. An investor buys at $80 and holds. Three years later the shares are worth $100 again.
Total gain = (100 - 80) / 80 = 20 / 80 = 25%.
Annualised gain = 1.25 ^ (1/3) - 1, which is about 1.077 - 1 = 7.7% a year.
The investor earned this without needing the business to grow, only for the price to return to value, ignoring dividends and costs.Case study
Seen in the real world.
Linden Shore Partners is an illustrative, fictional investment company owned by a single family. It has no outside investors who can withdraw their money, so it can hold shares through bad patches that would force other funds to sell.
When a medical-equipment company it admired reported weak quarterly sales caused by a one-off supply problem, the shares fell by a quarter. Linden Shore's analyst checked the order book and confirmed that demand was unchanged, then bought $2 million of shares.
Over the next two years the supply problem was fixed and the shares returned to their earlier level, making a gain of about $667,000 on the illustrative position. The partners noted that the key was not cleverness but structure: no one could force them to sell.
Watch out
Common mistakes.
- Believing time arbitrage is risk-free, when the investor can lose money if the bad news turns out to be permanent.
- Using borrowed money to hold a position, which can force a sale at the worst moment if the price falls further.
- Confusing patience with stubbornness, and holding on after the facts behind the original view have changed.
Questions
People also ask.
Is time arbitrage the same as arbitrage?
No, because classic arbitrage locks in a profit from a price difference at one moment, while time arbitrage relies on waiting and carries real risk.
Who is best placed to use time arbitrage?
Investors who do not face short-term withdrawals or performance pressure, such as family offices, endowments and individuals with stable income and savings.
How do I know whether a price drop is temporary?
You need to examine the business itself, including its earnings, cash flow, debts and competitive position, to see whether the cause of the fall will fade.
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