SEDOL Check Digit Calculator

How SEDOL Check Digit Calculator Works?

The SEDOL Check Digit Calculator works by multiplying the 6 character values by weights 1, 3, 1, 7, 3, 9, summing the products, and appending the complement to 10. SEDOL stands for Stock Exchange Daily Official List.

1. 1Convert digits to 0–9 and letters to 10–35 (vowels are not used).
2. 2Multiply the 6 values by 1, 3, 1, 7, 3, and 9.
3. 3Add the products.
4. 4Compute (10 − (S mod 10)) mod 10 as the 7th character.

SEDOL Check Digit Calculator Formula

The SEDOL formula is Check = (10 − ((v₁ + 3v₂ + v₃ + 7v₄ + 3v₅ + 9v₆) mod 10)) mod 10.

S = 1·v₁ + 3·v₂ + 1·v₃ + 7·v₄ + 3·v₅ + 9·v₆
Check = (10 − (S mod 10)) mod 10   (SEDOL)

• vᵢ is the value of the i-th character.

B(11) × 1 = 11
0(0) × 3 = 0
Y(34) × 1 = 34
B(11) × 7 = 77
K(20) × 3 = 60
J(19) × 9 = 171
S = 353
Check = 7
SEDOL = B0YBKJ7

SEDOL Check Digit Calculator Conversion Table

The SEDOL conversion table lists numeric and alphanumeric SEDOLs with their check digit and UK ISIN.

What is SEDOL Check Digit Calculator?

A SEDOL Check Digit Calculator is a tool that computes the 7th character of a SEDOL code issued by the London Stock Exchange Group (LSEG). SEDOLs identify securities traded in the United Kingdom and Ireland.

A UK ISIN is GB00 + SEDOL + ISIN check digit, so 1 SEDOL leads to 1 ISIN.

What are the uses of SEDOL Check Digit Calculator?

There are 3 main uses of the SEDOL Check Digit Calculator, including UK trading, ISIN creation, and fund data checks.

• UK trading: Brokers validate SEDOLs on London trades.
• ISIN creation: Data teams turn SEDOLs into GB ISINs.
• Fund data checks: Fund administrators check holdings files.