İskenderun Demir Çelik (ISDMR) shares are on Borsa Istanbul's participation index list (BIST Participation All Shares) for the period from October 1, 2026 to April 30, 2027. Source: Borsa Istanbul's list of participation index constituents, Oct 1, 2026. The shares are also in the BIST Participation 50, BIST Participation 100, BIST Participation Dividend and BIST Participation Sustainability indices.
Dated October 17, 2026No. SGL-2026-6A-ISDMR
Based on the financial statements for the first half of 2026, all three ratios are within the TKBB thresholds.
Upper bound. Debt items that may count as interest-bearing (line 6I of the KAFİF form) were taken in full from the public statements. The deductions the company declares on line 6J of its KAFİF form are not used in the measurement; they could not be confirmed from the financial statements and notes, so the deduction was set to 0. The ratio is therefore an upper bound for the items shown in the financial statements. (Loans from participation banks and lease certificates (sukuk) are deducted only when a note shows them separately; nothing was deducted in this measurement.) Notes that could not be used: Other payables: no note was found for this item (condensed interim report). Note 7 (Short-term borrowings): the statement amount could not be matched to the note's column automatically. Note 7 (Current portion of long-term borrowings): the statement amount could not be matched to the note's column automatically. Note 7 (Long-term borrowings): the statement amount could not be matched to the note's column automatically. There is no usable evidence from the notes, so the proven amount was set to 0 and the lower bound is 0%. The ratio is in the range 0.00% to 15.94%; both bounds give the same result.
KAFİF declaration 14.7% (first half 2026) · Sağlama range 0.0% to 15.9% (first half 2026) · the declaration is inside the range · View the form on KAP
Source: company financial report, first half 2026 statements · Jun 30, 2026
RatioInterest-bearing cash and securities / total assets
Upper bound. Asset items that may count as interest-bearing (line 5F of the KAFİF form) were taken in full from the public statements. The deductions the company declares on line 5G of its KAFİF form are not used in the measurement; they could not be confirmed from the financial statements and notes, so the deduction was set to 0. The ratio is therefore an upper bound for the items shown in the financial statements. Notes that could not be used: Financial investments (current and non-current): no note was found for this item (condensed interim report). Cash and cash equivalents: no note was found for this item (condensed interim report). There is no usable evidence from the notes, so the proven amount was set to 0 and the lower bound is 0%. The ratio is in the range 0.00% to 17.68%; both bounds give the same result.
KAFİF declaration 16.7% (first half 2026) · Sağlama range 0.0% to 17.7% (first half 2026) · the declaration is inside the range · View the form on KAP
Source: company financial report, first half 2026 statements · Jun 30, 2026
On the KAP form this item is titled “Katılım Finans İlkelerine Uygun Olmayan Gelir”, which means income not in line with participation finance principles.
Measured on the items we can calculate. Income items that may count as excluded (line 4C of the KAFİF form) were taken in full from the public statements. Income that the notes prove does not count (line 4D of the KAFİF form) was deducted. Items that could not be separated stayed in the numerator, as a precaution. For these income lines (line 4C), the ratio is an upper bound. Excluded income from business activities (line 4B of the KAFİF form) does not appear in the financial statements; it is only in the company's KAFİF declaration on KAP. This measurement sets it to 0. If there is a declaration, the record shows it separately, with a link. Note 14: “Ticari alacak ve borçlardan kur farkı gelirleri” TRY 464,813 thousand: not counted (proven); “Reeskont gelirleri” TRY 186 thousand: undetermined, kept in the upper bound; “Konusu kalmayan karşılıklar” TRY 46,998 thousand: not counted (proven); “Hizmet gelirleri” TRY 55,932 thousand: not counted (proven); “Kira ve bakım onarım gelirleri” TRY 14,505 thousand: not counted (proven); “Dava gelirleri” TRY 1,866 thousand: not counted (proven); “Tazminat ve gecikme ceza gelirleri” TRY 15,710 thousand: not counted (proven); “Geçmiş dönem sigorta hasar tazminat geliri” TRY 3,062 thousand: not counted (proven); and 3 more lines. Note 15: “Banka mevduatlarından faiz gelirleri” TRY 1,256,498 thousand: counted in the ratio (proven); “Kur farkı gelirleri” TRY 566,919 thousand: not counted (proven); “İlişkili taraf alacaklarından faiz gelirleri” TRY 0 thousand: counted in the ratio (proven); “Türev araçların gerçeğe uygun değer farkı (net)” TRY 12,613 thousand: counted in the ratio (proven); “Diğer finansal gelirler” TRY 7,739 thousand: undetermined, kept in the upper bound. Notes that could not be used: Income from investing activities: no note was found for this item (condensed interim report). The ratio is in the range 1.80% to 2.25%; both bounds give the same result.
Breakdown from the notes
Item, as written in the company's report
Amount (TRY thousand)
Class
Basis
Ticari alacak ve borçlardan kur farkı gelirleri · Other income from operating activities, note 14
464,813
not counted (proven)
TKBB Guideline 4.2
Reeskont gelirleri · Other income from operating activities, note 14
186
undetermined, kept in the upper bound
TKBB Guideline 4.1
Konusu kalmayan karşılıklar · Other income from operating activities, note 14
46,998
not counted (proven)
TKBB Guideline 4.2
Hizmet gelirleri · Other income from operating activities, note 14
55,932
not counted (proven)
TKBB Guideline 4.2
Kira ve bakım onarım gelirleri · Other income from operating activities, note 14
14,505
not counted (proven)
TKBB Guideline 4.2
Dava gelirleri · Other income from operating activities, note 14
1,866
not counted (proven)
TKBB Guideline 4.2
Tazminat ve gecikme ceza gelirleri · Other income from operating activities, note 14
15,710
not counted (proven)
TKBB Guideline 4.2
Geçmiş dönem sigorta hasar tazminat geliri · Other income from operating activities, note 14
3,062
not counted (proven)
TKBB Guideline 4.2
Ardiye gelirleri · Other income from operating activities, note 14
3,464
not counted (proven)
TKBB Guideline 4.2
Müşteriler gecikme faiz gelirleri · Other income from operating activities, note 14
492
undetermined, kept in the upper bound
TKBB Guideline 4.2
Diğer gelir ve karlar · Other income from operating activities, note 14
The three ratios are calculated from the financial statements, and each bar is scaled to its own threshold. The measurement uses the company's latest published statements, and every record states the period. The official review uses audited six- and twelve-month statements (Standard 3.4), so the periods can differ. Method
This record is produced by Sağlama's calculation from the financial statements the company publishes. The method and the corrections log are public. Responsible for this record: Savaş Tutumlu, founder.
Starts on May 1, 2027. Borsa Istanbul is expected to announce the new list by April 29, 2027 at the latest (Ground Rules 2.17). Sağlama's expectation for each member is on the Review forecast page. This is a forecast, not the official list.
Status history
5 entries
Each period's record and every correction are kept with their dates. Method
Earlier measurementTKBB rules, August 2025, version 1 · Q1 2026: all three ratios within the threshold. Income 3.77% · assets 21.93% · loans 20.88%.
Earlier measurementTKBB rules, August 2025, version 1 · Q1 2026: all three ratios within the threshold. Income 2.29% · assets 21.93% · loans 20.88%.
Earlier measurementTKBB rules, August 2025, version 2 · Q1 2026: all three ratios within the threshold. Income 2.29% · assets 21.93% · loans 20.88%.
Earlier measurementTKBB rules, August 2025, version 2 · first half 2026: all three ratios within the threshold. Income 2.25% · assets 17.68% · loans 15.94%.
MeasurementTKBB rules, August 2025, version 3 · first half 2026: all three ratios within the threshold. Income 1.80% to 2.25% · assets 0.00% to 17.68% · loans 0.00% to 15.94%.THIS RECORD
Documents and sources
Source links lead to documents published by the company and by Borsa Istanbul. We do not copy KAP documents. Method
ISDMR financial report, Jun 30, 2026 (company investor relations site)Jun 30, 2026 · Fingerprint dbf58c36f093…View the document
Sağlama's calculation and methodTKBB rules, August 2025, version 3Read the method
If a figure looks wrong, write to bilgi@saglama.com. We correct it and record the correction with its date in the corrections log.
What this measurement covers
Based on data as of this date, the three ratios we measure are within the TKBB thresholds.
The company's KAFİF declaration
The company's declaration on the KAP form (first half 2026): excluded income 1.8%, interest-bearing assets 16.7%, interest-bearing loans 14.7%. The three declared ratios are within the thresholds. View the form on KAP
The company's answers to the four yes/no questions on the form:
Do the articles of association of the company, its corporate shareholders or its affiliates include an activity that does not follow participation finance principles?
No
Do the company's articles of association grant a privilege that does not follow participation finance principles?
No
Has the company made a statement or decision supporting the actions defined in Standard 1.5 and TKBB Guideline 1.D?
No
Does the company have activities or income directly contrary to participation finance principles?
A company within the threshold can still have a small amount of excluded income (interest income and other income the standard excludes). Under the TKBB standard, the part of this income that falls to your shares is given to charitable causes. This duty applies whether the company made a profit or a loss, and whether or not it paid a dividend. The amount set aside does not replace zakat or sadaqa.
CALCULATION SLIPISDMR · first half 2026
Number of shares
500
Gross dividend per share
TRY 2.40
Gross dividend (500 × 2.40)
TRY 1,200.00
Excluded income ratio
2.3%
Purification amount
TRY 27.00
Purification amount = gross dividend × excluded income ratio
The number of shares and the dividend are sample inputs. The ratio comes from the company's measurement. To calculate with your own figures, use the purification page.
Purification amount = gross dividend × excluded income ratio (dividend-based method). Under TKBB Standard 3.6.1, purification is needed even if the company makes a loss or pays no dividend. The method page quotes TKBB Standard 3.6, including the inflation deduction under 3.6.2. This is a cautious calculation. The amount may be higher than the true figure, because it uses all of the interest income, not only the part above inflation. The ratio is the upper bound of the measurement (the lower bound is 1.80%); the purification amount is calculated on the upper bound, as a precaution.
Excluded income is the part of a company's earnings that is not in line with participation finance principles. On the KAP form it is called “income not in line with participation finance principles.”
Purification is done even if the company makes a loss.
Purification is needed even if no dividend is paid. The calculation here uses the dividend-based method. TKBB Standard 3.6 also counts how long you held the shares (the share-days method), which this calculator does not do yet.
The purification amount does not replace zakat or sadaqa. Under the TKBB standard, it is given away, not kept.
You give the amount yourself, to a charitable cause of your choice. Sağlama does not direct donations.
This calculation uses the dividend-based method. TKBB Standard 3.6 also counts how long you held the shares (the share-days method). The standard is quoted on the method page.
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Companies in the same index
The 12 companies just before and after this one in alphabetical order in BIST Participation 50.