NextFin News - Turkey's benchmark BIST 100 index fell as much as 1.7% to 12,084 points in early trading on Wednesday, a 20% slide from the record highs struck in early May that puts the market on the threshold of a bear market if it closes at those levels. In dollar terms the decline is already steeper: about 25%. The rout traces not to a macro shock or a war premium, but to a home-grown fund crisis that has frozen redemptions, forced the liquidation of 130 investment vehicles, and exposed a circular trading scheme at the heart of Istanbul's retail-driven equity market.
The sell-off has accelerated through September. The index dropped 2.4% to 12,290.58 at the close on September 29, extending its monthly loss to 14.26%, according to market data. On Monday, September 28, the broader all-share index slid as much as 3.5% to 15,162 points, its weakest level since the second week of the year, while the blue-chip gauge touched 12,529, last seen in mid-January. Circuit breakers tripped on September 16 as funds that could not meet redemption requests scrambled to raise cash.
The central question is whether this is a contained cleanup of a fraudulent corner of the market, or the moment Turkey's two-year stabilization program loses its credibility with local savers. The answer matters because the buyers of last resort in this selloff are not foreign funds - they are Turkish households, and they are heading for the exit.
The Scheme Beneath the Rally
The mechanics of the boom that preceded the bust are now the mechanics of the crash. A small group of portfolio managers concentrated purchases in a set of low-float stocks, pushing their prices higher and inflating the net asset values of the funds that held them. The advertised returns then attracted fresh retail money, which the managers used to buy the same or related shares. It is a self-referential loop: the funds owned the stocks, the stocks marked up the funds, and the funds' performance attracted the cash that kept the loop alive.
The scale of the distortion was extreme. Two funds run by Pusula Portföy gained 164% and 144% in the first seven months of 2026, returns that stood apart from the broader market even in a year when the BIST 100 set fresh records. The Capital Markets Board, known locally as SPK, said it had observed unusual price movements in low-float stocks as far back as the final quarter of 2025. Treasury and Finance Minister Mehmet Şimşek had warned publicly at the Turkey Capital Markets Congress in November 2025 that manipulation was taking place through certain funds.
The loop broke when redemption requests exceeded the cash the funds could raise without crashing the very stocks that backed them. Pusula Portföy was the first to fail withdrawal requests; Tera Portföy followed. Panic spread on the expectation that other funds would be forced into fire sales. On September 16, the BIST 100 triggered its circuit breakers, with large numbers of stocks pinned at their lower price limits.
The regulator's response was swift and unusually severe. The SPK ordered the closure and liquidation of 130 funds managed by seven portfolio-management companies - Tera (5 funds), Pusula (12), Hedef (31), Atlas (16), A1 Capital (9), Bulls (15), and Pardus (42) - and suspended all trading in those vehicles on TEFAS, Turkey's electronic fund platform. Purchases and redemptions were halted immediately, with the board to determine the liquidation method. The affected funds held more than $18 billion in assets and counted 455,758 individual investors.
The order applies to the funds, not the seven management companies, which remain in business. But the enforcement net widened quickly. The SPK referred 38 people to prosecutors over suspected manipulation of Katılımevim and Gündoğdu Gıda shares; proceedings were later initiated against 63 individuals on allegations including organized crime, fraud, defrauding the state, and violations of capital-markets law, with 15 people taken into custody in a separate Katılımevim-related operation. Financial and asset movements of executives linked to the Pusula, Tera, Hedef, and Bulls groups were frozen.
"We have quarantined the problematic area. Investors' savings will be protected," Şimşek told a private broadcaster, adding that the problem affected only a small percentage of Turkey's 2,038 investment funds and that most of the affected vehicles were the Turkish equivalent of hedge funds, which face fewer investment restrictions than ordinary mutual funds.
Where the Money Actually Went
The reassuring official narrative is that the damage is quarantined and that savers' money has not fled the country. The fund-flow data supports only the second half of that claim. Goldman Sachs economists Clemens Grafe and Basak Edizgil estimated that money-market funds saw $1.8 billion of outflows in the week to September 11, bringing the total decline to $4 billion in the first two weeks of the month. As of September 15, however, lira deposits in the banking system had increased by $12 billion, far outpacing inflows into foreign-currency and gold deposits on a valuation-adjusted basis.
That rotation is the key fact of the episode. Turkish households are not dollarizing en masse - the classic tell of a confidence crisis in an emerging market. They are moving from funds into bank deposits, trading yield-bearing paper for the safety of a balance-sheet liability. The panic is domestic, and it is a panic about counterparty risk, not about the currency.
But the destination of the money does not mean the stock market is unscathed. The funds that were liquidated held Turkish equities, and the forced unwinding of those positions - combined with the broader retreat of local risk appetite - is the direct channel through which an $18 billion fund problem becomes a 20% equity drawdown. The central bank has stepped into the gap: its reserves fell $4.3 billion amid the turmoil, and it increased lending to banks to ease a lira shortage in the market.
Market valuations have compressed accordingly. The BIST 100's market capitalization fell to ₺18.5 trillion on September 29 from ₺23.5 trillion at the end of July, a destruction of roughly ₺5 trillion in paper wealth in two months. The index's price-to-earnings ratio has fallen to 14.3x from 17.7x in late August, according to Simply Wall St - a repricing of more than three turns of earnings in a matter of weeks.
Why This Is Different From Turkey's Usual Crises
Turkey's market crises since 2018 have followed a familiar script: a currency shock, a central bank that refuses to raise rates, and capital flight. This episode inverts the script. The central bank has held its policy rate at 37% for five consecutive meetings, last cutting in January, and inflation - while still elevated at 31.5% in August - is no longer accelerating out of control. The trigger here is not monetary policy; it is market integrity.
That distinction cuts both ways. On one hand, the orthodox policy framework that Finance Minister Şimşek has built since 2023 remains intact, and the credit-rating upgrades and index-inclusion hopes that followed it are not automatically undone by a domestic fund scandal. On the other hand, the buyers who powered the BIST 100's record run were local, and their trust is precisely what has been damaged. A market that rose on retail leverage and fund inflows can fall the same way, regardless of what the central bank does.
The authorities have tried to break the mechanics of the fall. The SPK temporarily reduced the minimum equity maintenance ratio for margin transactions from 35% to 20%, effective until the close of trading on October 2, to relieve pressure on leveraged accounts. The central bank has supplied lira liquidity to banks. And the government has emphasized that legitimate investors will be protected while enforcement proceeds against the perpetrators.
Yet the most candid assessment came not from an official but from economist Murat Sagman, who described the episode after the regulator's announcement. "For now, the right steps are being taken to prevent this from turning into a broader crisis of confidence," he said. "Trust can be rebuilt through effective action. However, that process will take time, quite a long time."
The Counter-Thesis: A Contained Cleanup, Not a Regime Shift
The strongest case against the bearish reading is that this is a surgical excision of a fraudulent segment, not a systemic collapse. The affected funds represented a small fraction of Turkey's 2,038 investment vehicles. The savers' money has largely stayed in the banking system as lira deposits rather than fleeing abroad. The policy rate remains at a genuinely restrictive 37%, inflation is trending down from its peaks, and the real economy continues to grow - the EBRD, while cutting its 2026 growth forecast to 3%, still expects expansion, not contraction. By this logic, once the liquidations are priced and the prosecutions conclude, the BIST 100's 14.3x earnings multiple looks cheap against a central bank that is still fighting inflation rather than a recession.
That argument is coherent, but it rests on a fragile assumption: that the retail investors who lost access to their savings will return to equities quickly, and that the remaining fund industry will not face a lingering redemption overhang. History suggests otherwise. Confidence shocks in household savings products tend to propagate slowly - through reduced participation, higher required yields, and a persistent discount on locally owned risk assets - long after the regulatory perimeter is repaired. The bear market is not just a 20% drawdown; it is the price of a trust deficit that will not be arbitraged away by a cheap P/E.
The falsifying signal is specific: if monthly fund-flow data over the next two quarters shows net inflows back into Turkish equity and money-market funds, and if the BIST 100 reclaims the 14,000 level on rising turnover rather than a short squeeze, then this episode was a contained cleanup and the bearish thesis is wrong. Conversely, if lira deposit growth stalls and outflows continue into gold and foreign currency, the crisis has moved from funds to the currency - and that is the channel that would turn a 20% equity drawdown into something worse.
What Comes Next
In the short term, the path of the index depends on the mechanics of the liquidations the SPK has ordered and on whether the margin-relief measure prevents forced selling from cascading through leveraged accounts. A technical rebound is possible after a 20% drawdown, but rebounds in trust-deficit selloffs are typically shallow and easily reversed.
Over the medium term, the fundamental backdrop is mixed. Inflation is cooling but still above 30%, the policy rate is restrictive, and growth is slowing under the weight of both tight money and the war-driven energy shock that the finance minister estimates added 7 percentage points to inflation. The central bank's $4.3 billion reserve draw is a warning that defending stability in this environment is not costless.
Over the long term, the question is structural: did the scandal reveal a regulatory gap that has now been closed, or a culture of connected-party trading that will reappear in a new form? If the prosecutions lead to convictions and the SPK's new measures hold, Turkey's market can rebuild on a cleaner foundation. If enforcement is seen as selective, the discount on Turkish assets will persist regardless of the policy rate.
The base case is a market that stabilizes but does not quickly recover its highs - a bear market that grinds rather than crashes, with the BIST 100 range-bound as investors wait for fund-flow and enforcement data. The upside case requires a swift resolution of the liquidations, a return of retail inflows, and a resumption of the central bank's rate-cutting cycle. The downside case is a second leg: fund redemptions spreading into broader lira deposit withdrawals, forcing the central bank to choose between defending the currency and supporting banks.
Turkey's stocks are not in trouble because the economy is collapsing; they are in trouble because the mechanism that made them rise has been exposed as circular, and circularity cannot be reformed - it can only be liquidated. The market is now paying for that lesson, and the bill will not be settled by a cheap valuation multiple.
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