Turkey’s Fund Crisis, Jim Simons, and the Cost of Confusing Good Outcomes with Good Decisions
Turkey's Fund Crisis, Jim Simons, and the Cost of Confusing Good Outcomes with Good Decisions
Notes from the Executive Table | Updated October 8, 2026
Turkey's investment fund crisis has become a test of something far more fundamental than portfolio performance.
In September, Turkey's Capital Markets Board (CMB), the country's securities regulator, initiated liquidation proceedings involving 131 investment funds managed by seven portfolio management companies.
According to figures reported by the regulator, those funds had 455,758 distinct investors.
The original three-month liquidation period was extended to six months. Questions surrounding redemption instructions required further clarification. By early October, the regulator had introduced an interim payment mechanism for investors in certain affected funds, subject to a limit of TRY 1 million per investor per fund.
What began as a discussion about investment performance had become a discussion about whether hundreds of thousands of investors could access their money, when they could access it, and under what conditions.
The immediate question is obvious:
What went wrong?
But I believe the more important question is:
Why weren't we asking that question while the strategy was still making money?
Risk did not suddenly appear when prices declined.
That was simply when it became impossible to ignore.
When Bad Decisions Produce Good Returns
In business, we usually associate bad decisions with financial losses.
But there is a more dangerous possibility:
A bad decision that keeps making money.
A losing decision gets questioned.
A profitable decision gets rewarded, repeated, and scaled.
Eventually, the organization begins treating its results as evidence of superior judgment.
That is where performance can become misleading.
This does not mean every fund affected by Turkey's crisis pursued an unsound strategy. Nor does it establish wrongdoing by any particular manager.
It means something more basic.
Strong returns, by themselves, do not establish the quality of the decisions behind them.
A portfolio's performance cannot be properly evaluated without understanding the liquidity, concentration, and market-impact risks required to produce it.
The same principle applies to corporate management.
Revenue can grow. Market share can expand. EBITDA can improve. A company can meet its budget.
None of those outcomes, standing alone, proves that management made good decisions.
When we stop questioning decisions because the results look good, we begin confusing success with risk-taking.
The Difference Between a Market Price and Real Liquidity
One of the most important lessons from Turkey's fund crisis concerns the distinction between reported portfolio value and executable market value.
An asset may have a quoted market price without having sufficient liquidity to support a large sale at that price.
This distinction becomes critical when a fund holds concentrated positions in stocks with limited free float.
As prices rise, reported portfolio values may increase.
But if a fund must liquidate a substantial position, who will buy those shares, in what volume, and at what price?
A mark-to-market valuation is not a guarantee of realizable proceeds.
The CMB cited portfolio characteristics and prevailing market conditions when extending the liquidation period to six months, with the objective of allowing assets to be sold under more favorable conditions.
For corporate executives, the parallel is familiar.
Revenue increases, but accounts receivable grow faster.
Inventory carries substantial book value, but customer demand is weak.
Production capacity is fully utilized, but low-margin products consume valuable resources.
EBITDA improves, while operating cash flow deteriorates.
The common problem is straightforward:
Accounting value, market value, and available cash are not interchangeable.
A management team that fails to understand the difference may discover that its apparent financial strength disappears precisely when liquidity matters most.
Why Jim Simons Matters to Me
Jim Simons is one of the people who has influenced my thinking most profoundly.
What interests me is not simply the extraordinary investment performance associated with Renaissance Technologies.
It is the intellectual discipline behind the process.
Simons built an investment organization increasingly centered on mathematical models, empirical testing, data, and scientific collaboration.
In 1988, Renaissance moved to an entirely model-driven trading approach.
The lesson is not that models eliminate mistakes.
They don't.
Models fail. Forecasts fail. People fail.
What a systematic process can provide, however, is something essential:
A way to make the reasoning behind a decision explicit, testable, and subject to revision.
What did we know when we made the decision?
What outcome did we expect?
Which assumptions supported that expectation?
What risks were we accepting?
Under what conditions would we change our position?
What actually happened?
And why?
These questions matter because investment performance is not the same thing as investment skill.
A strong outcome may reflect sound judgment, favorable market conditions, or luck.
Without a documented decision process, distinguishing among them becomes difficult.
The objective is not to be right every time.
It is to build a process capable of producing sound decisions repeatedly.
The Missing Record in Corporate Decision-Making
Consider a simple commercial decision.
A company offers a customer a 10% price discount to protect the relationship.
Six months later, sales volume has increased by 20%.
Management celebrates.
"The discount worked."
But did it?
How much additional volume was required to recover the lost contribution margin?
What increase had management expected when it approved the discount?
Was that forecast supported by historical data or a customer commitment?
What was the impact on working capital?
Without those answers, the 20% increase tells us what happened.
It does not tell us whether the original decision was sound.
Perhaps management made an excellent decision.
Perhaps the overall market expanded.
Perhaps a competitor raised prices.
Perhaps the company was simply fortunate.
This distinction also informs my work on FİKAS, a pricing decision framework focused on the asymmetry between discounts and the sales volume required to recover lost profit contribution.
Calculating the break-even volume increase is important.
But so is recording the expected outcome when the decision is made and comparing that expectation with subsequent performance.
Measuring results tells us how we performed. Examining the reasoning behind those results tells us whether we are learning.
Who Actually Bears the Risk?
Recent developments in Turkey highlight another critical governance question.
The person making an investment decision is not necessarily the person who ultimately bears its economic consequences.
A portfolio manager makes allocation decisions.
Investors bear the financial exposure.
When liquidity deteriorates, investors may face restrictions or delays in accessing their capital.
Regulators, custodians, and liquidation administrators then become involved in managing the consequences.
That leads to a question every investment committee should ask:
Are the people benefiting from a decision's upside also exposed to its downside?
Corporate organizations face the same problem.
A sales team achieves its revenue target, while finance absorbs the collection risk.
Procurement reports cost savings, while manufacturing bears the cost of defective materials.
Management pursues aggressive growth, while employees, suppliers, and shareholders face the consequences of excessive leverage.
A decision can improve one team's performance while weakening the organization as a whole.
That is why decision quality must include more than expected returns.
It must also account for who bears the risk when the assumptions fail.
Identifying Risk Is Not the Same as Controlling It
On October 6, Turkey's securities regulator responded to press allegations concerning earlier market warnings.
The CMB stated that notifications from Borsa Istanbul had been evaluated and reported that 96 criminal complaints relating to fund transactions had been filed during 2026.
Those statements do not, by themselves, establish the legal responsibility of any individual or institution.
But they raise a broader governance question:
How much time passes between identifying a material risk and effectively containing it?
A risk may be documented.
A committee may discuss it.
An audit may investigate it.
A regulator may issue new requirements.
Yet none of those activities necessarily demonstrates that the underlying exposure has been reduced.
The same is true in a corporation.
Having a risk committee does not prove that risks are controlled.
Producing an internal audit report does not prove that its findings have been resolved.
Informing the board does not prove that management acted in time.
A known risk is not necessarily a managed risk.
The effectiveness of governance should be assessed by its ability to identify, limit, and respond to exposure—not merely by the existence of procedures.
The Questions We Should Have Asked While Returns Were Strong
Turkey's fund crisis offers lessons that extend well beyond its domestic capital markets.
For investors, boards, and executive teams, three questions deserve particular attention.
First: How did we generate these results?
Through a repeatable competitive advantage, favorable external conditions, or risks that have not yet materialized?
Second: Are these results sustainable?
Would the strategy remain viable if market liquidity deteriorated, funding conditions tightened, or investor behavior changed?
Third: Who pays if we are wrong?
Are the consequences borne by the decision-makers, or transferred to investors, employees, creditors, and other stakeholders?
Good governance requires asking these questions before a crisis makes the answers obvious.
That is the deeper lesson I take from Jim Simons.
The goal is not to produce an impressive result and then construct a convincing explanation.
The goal is to establish a disciplined process that can withstand scrutiny before and after the outcome is known.
Turkey's fund crisis involves a specific market, regulatory framework, and set of circumstances.
But the underlying management failure it warns us about is universal.
The most dangerous bad decision is not necessarily the one that loses money.
It is the one that makes money for so long that nobody questions it anymore.
Editorial and Intellectual Property Note
This article presents an original management analysis of developments in Turkey's investment fund market during September and October 2026. Its interpretations concerning decision quality, liquidity, investment governance, and accountability are those of the author.
Factual references to regulatory actions are based on public statements by Turkey's Capital Markets Board. The article does not assert legal wrongdoing by any individual, fund, or institution.
Historical references to Jim Simons and Renaissance Technologies are based on published material from the Simons Foundation.
FİKAS (Price Discount–Profit Asymmetry Score) is an original commercial decision framework developed by Orkun Akçasarı. It is referenced here as an illustrative application, not as a newly introduced standalone model.
References
Capital Markets Board of Türkiye (CMB). Statement on the Investment Fund Regulatory Process. September 18, 2026.
Capital Markets Board of Türkiye. Extension of the Liquidation Period for Affected Funds. September 21, 2026.
Capital Markets Board of Türkiye. Statement on the Number of Investors in Funds Under Liquidation. September 23, 2026.
Capital Markets Board of Türkiye. Clarification of Fund Liquidation Procedures. September 28, 2026.
Capital Markets Board of Türkiye. Interim Payment Arrangements for Certain Funds Under Liquidation. October 1, 2026.
Capital Markets Board of Türkiye. Press Statement. October 6, 2026.
Simons Foundation. Simons Foundation Chair Jim Simons on His Career in Mathematics. September 28, 2012.