Bank Pledge over Client Shares: Court of Cassation 2024/2923

Savun Law & Consultancy · Updated 14 November 2026

An investor assumes that their shares sit safely in a brokerage account. When the brokerage's activities are suspended, it turns out that those shares were being held as collateral for the brokerage's own loan at a bank the investor has never dealt with. The bank wants to sell the shares relying on its pledge; the investors and the Investor Compensation Fund say the shares belong to them. This dispute began in 2009, grew into a consolidation of five separate cases and was closed in 2024 by a final affirming decision of the Court of Cassation.

By its decision of 16.04.2024, Docket No. (E.) 2023/4528, Decision No. (K.) 2024/2923, the 11th Civil Chamber of the Court of Cassation unanimously affirmed the judgment given after a reversal, in consolidated cases arising from the pledging of brokerage clients' shares for the brokerage's bank loan.

In short: A brokerage whose activities were temporarily suspended by an SPK letter dated 24.03.2009 had pledged its clients' shares as collateral for a loan from a bank. The bank asked for its pledge to be recognised, while the Investor Compensation Fund and the investors requested the return of the shares. The court of first instance held that the clients' capital markets instruments had been pledged for the brokerage's debt, not for the clients' own debts; it rejected the bank's case and accepted the claims of the Fund and the investors. In 2022 the Court of Cassation reversed the judgment only on the point of the number of shares and lots to be returned and the bonus share calculation. Once the shares were returned, the cases became moot; the court held the defendant liable for the litigation costs and the Court of Cassation affirmed that decision.

What this article covers

The suspended brokerage and the pledged shares
Five cases, three different claims
The first-instance court's decision on the merits
The 2022 reversal: number of shares or number of lots?
Shares returned: the cases that became moot
The 2024 affirming decision
The current rule: Article 46 of Law No. 6362
Questions people ask

🏦 The suspended brokerage and the pledged shares

As the decision shows, a bank had concluded general loan agreements with the brokerage on various dates and extended credit by taking shares as a pledge under a "Securities Loan Undertaking" (Menkul Kıymet Kredi Taahhütnamesi). By an SPK letter dated 24.03.2009 the brokerage's activities were temporarily suspended, and a gradual liquidation process was started against it under Article 46 of the former Capital Markets Law No. 2499.

According to the bank, as of 26.03.2009 the brokerage owed it TL 647,017.83, while the value of the pledged shares held at the brokerage had reached TL 1,367,577.06. While the bank was preparing to sell the shares on the strength of its pledge, the Investor Compensation Fund (Yatırımcıları Koruma Fonu) gave notice that the shares were owned by the clients and that their consent would therefore be required.

📂 Five cases, three different claims

Following that notice, cases filed in different courts were eventually consolidated into a single file. The claims fall into three groups:

The bank's main case: Relying on Articles 19, 21 and 23 of the Communiqué on Margin Trading, Short Selling, and Securities Lending and Borrowing, the bank argued that clients' shares could be pledged for the brokerage's debt without any need for client consent, and asked for a declaration that its pledge right was not being interfered with (muarazanın meni).
The Investor Compensation Fund's case: Citing Article 46/B of Law No. 2499, under which capital markets instruments are distributed first to their rightful owners in a liquidation, and stating that the assets of 26 investors were held in the brokerage's account at the bank, the Fund asked for an order stopping the interference with possession.
The investors' cases: Arguing that shares cannot be pledged to a bank for the brokerage's loan without the investors' permission and consent, the investors asked for the shares to be returned in kind, together with dividends and bonus capital increases.

In its defence the bank argued that the shares had been registered as pledged to the brokerage's account, not the bank's; that even if pledging had been possible, it would not bind clients who were not parties to the agreement; and that there was no pledge agreement between the bank and the clients.

🧾 The first-instance court's decision on the merits

In its decision of 12.03.2020 the court based its conclusion on the following findings:

There were clients who had never borrowed any money from the brokerage, yet whose shares were pledged to banks for the brokerage's benefit.
Some clients who did borrow had more shares pledged as collateral than their loan amounts required.
The bank wanted to hold shares worth several times the credit it had extended.
When the principal debt ended through cash payment or through proceeds from selling shares, the pledge, being an accessory right, also ended.
The clients' loan debt was owed to the brokerage; they had no direct debt to the bank. The capital markets instruments were pledged for the brokerage's debt, not for the clients' own debts.

On these grounds the bank's main case was rejected and the Fund's case was accepted, with an order stopping the interference with possession of the clients' shares. In the investors' cases, the return of the GARAN, TKFEN, İSCTR, PRKME, TTKOM and ÜLKER shares pledged to the bank was ordered, together with accrued dividends and capital increases; in one file, payment of TL 1,154.70 in dividends with advance interest was also ordered.

🔁 The 2022 reversal: number of shares or number of lots?

By its decision of 20.04.2022, E. 2020/6090, K. 2022/3197, the 11th Civil Chamber of the Court of Cassation rejected the remaining appeal objections and reversed the judgment on one narrow point. The claimants had stated the shares they wanted returned both in lots and in numbers of shares; the court, however, had entered the quantity given in lots into the judgment as a number of shares. According to the Chamber, this could cause uncertainty at enforcement. The number of pledged shares and the number of lots to be returned therefore had to be stated clearly, and the increase in shares resulting from bonus capital increases also had to be determined and included in the return.

As to the main case and the Fund's case, which fell outside the scope of the reversal, the first-instance judgment passed Court of Cassation review and became final. The substantive assessment of the pledging of clients' shares for the brokerage's debt therefore became conclusive at that stage.

📦 Shares returned: the cases that became moot

In the proceedings after the reversal, it emerged from the claimants' counsel's statement that the shares and dividends had been returned. In its decision of 30.03.2023 the court ruled as follows:

As the earlier judgment had become final for the main case and the Fund's case, there was no need to give a new ruling;
As the investors' claims for the return of shares and for dividends had become moot, there was no need to rule on them;
As interest on dividends had been requested in the petition in only one file, advance interest on the TL 1,154.70 in dividends was to be collected from the defendant in that file, running from the date of the case until the date the shares were returned;
On the ground that the claimants were justified in bringing the case and that the defendant had given rise to it, attorney's fees and litigation costs were awarded in favour of the claimants

This approach is consistent with Article 331/1 of the Code of Civil Procedure (HMK), under which, when a case becomes moot, litigation costs are determined according to which party was in the right on the date the case was filed.

✅ The 2024 affirming decision

The judgment was appealed by the company that was the defendant in one of the consolidated cases. In its appeal petition it argued that the claimant had no legal interest, that the case had become moot because the shares had been returned, that the claimant had filed this case although aware of a similar case in another court, and that, for these reasons, no litigation costs should be awarded against it and attorney's fees should be awarded in its favour.

The 11th Civil Chamber of the Court of Cassation characterised the dispute as follows: in the main case, removal of the uncertainty over whether the bank held a pledge over the clients' shares; in the Fund's case, stopping the interference with possession; in the other cases, return of the shares. It cited Article 46 of Law No. 2499 as the relevant law. Stating that the court had ruled in accordance with the reversal decision it had followed and that there was no error in its assessment of the evidence, it rejected all the appeal objections and unanimously affirmed the judgment on 16.04.2024.

📎 Full text of the decision: The official text of the decision of the 11th Civil Chamber of the Court of Cassation dated 16.04.2024, E. 2023/4528, K. 2024/2923, is available as a PDF here.

📜 The current rule: Article 46 of Law No. 6362

The events took place under the repealed Law No. 2499. Article 46 of Capital Markets Law No. 6362, which is in force today, sets out express provisions protecting client assets:

Art. 46/5: Cash and capital markets instruments held by investors at investment firms are tracked separately from the firm's own assets; without the investors' express written permission they cannot be used for any purpose other than the one for which they were deposited, in a way that benefits the firm itself or third parties.
Art. 46/6: These assets cannot be attached because of the investment firm's debts, even public receivables; cannot be pledged without the investors' separate prior written permission; cannot be included in the bankruptcy estate; and cannot be made subject to a precautionary injunction.
Art. 46/7 (added by Law No. 7518): Client accounts at banks cannot be shown as loan collateral; no blocking, pledge or similar encumbrance can be placed on these accounts in favour of the investment firm.

The question debated in the 2009 events, whether client consent is required, is answered directly by the current rules through the requirement of prior written permission. Whether a transfer of shares from an investment account to a bank counts as a pledge or a payment is discussed separately in the article on whether a share transfer is a pledge or a paymentTR, and one of the cases involving a brokerage in gradual liquidation is covered in the article on waiver in a bankrupt brokerageTR.

💡 Questions people ask

Did the Court of Cassation rule in 2024 that the pledge was invalid?

The 2024 decision only reviewed and affirmed the judgment given after the reversal, that is, the points on the claims that became moot, dividend interest and litigation costs. The assessment that clients' shares were pledged for the brokerage's debt, with the bank's case rejected and the Fund's case accepted, belongs to the first-instance decision of 12.03.2020, which became final through the Court of Cassation's 2022 review.

Why was the defendant ordered to pay litigation costs once the shares were returned?

The court accepted that the claimants were justified in bringing the case and that the defendant had given rise to it. The return of the shares while the case was pending made the case moot, but litigation costs were determined according to who was in the right on the date the case was filed. The Court of Cassation found this assessment appropriate.

Was interest on dividends awarded to all claimants?

No. The court found that interest on dividends was requested in the petition in only one file, and that no such request existed in the other two files. Advance interest on the TL 1,154.70 in dividends was therefore awarded only in that file. No ruling was made on an item that had not been requested.

Why did the distinction between number of shares and lots matter in the reversal?

The claimants had stated the shares they wanted returned both in lots and in numbers of shares, and the court had entered the number of lots as a number of shares. The Court of Cassation stated that, as it stood, the judgment could cause uncertainty at enforcement, and that the number of shares and lots to be returned, and the shares added through bonus capital increases, had to be stated clearly.

For detailed information and legal support, you can contact Savun Law & Consultancy. Contact details are on the contact page, and other case assessments are in the Precedent DecisionsTR archive.

This article is for general information only; its content is compiled from the affirming decision of the 11th Civil Chamber of the Court of Cassation published on the Court of Cassation decision search system, and from the first-instance, reversal and post-reversal stages reported in that decision. Investor identities are anonymised in the source. The events took place under the repealed Law No. 2499; the provisions of Article 46 of Law No. 6362 given as the current rule are taken from the official legislation text. Cases with different facts may reach different results. Savun Law & Consultancy cannot be held responsible for any application, lawsuit or defence made on the basis of this article.

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This page is an English adaptation of our Turkish article Müşteri Hissesinde Banka Rehni – Yargıtay 11. HD 2024/2923.

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