X10XB Index Constituents
Stocks in the X10XB index with their weights, last prices and daily changes.
- Constituents
- 10
- 6 ▲ · 4 ▼
- Index return · 1D
- 0.32%
- today
- Top 5 weight
- 83.1%
- ASELS · TUPRS · BIMAS · THYAO · KCHOL
- Highest weight
- ASELS
- 24.18% of index
Period Returns
- Day
- 0.32%
- Week
- 5.02%
- Month
- −3.43%
- YTD
- 31.24%
- 1 year
- 35.88%
Constituent Stocks
 ASELSAselsan | 24.18% | 345.500.22% | 0.22% | 1.6T | 32.43 | 4.70 | 27.89 | 0.13% |
 TUPRSTüpraş | 20.01% | 359.000.56% | 0.56% | 691.7B | 5.33 | 1.32 | 2.93 | 1.78% |
 BIMASBim Mağazalar | 19.05% | 395.501.93% | 1.93% | 474.6B | 13.67 | 2.14 | 10.26 | 0.60% |
 THYAOTürk Hava Yollari | 13.05% | 320.250.39% | 0.39% | 441.9B | 3.76 | 0.39 | 7.47 | 1.03% |
 KCHOLKoç Holding | 6.83% | 207.50−0.34% | −0.34% | 526.2B | 8.08 | 0.62 | 12.11 | 3.68% |
 EREGLEreğli Demir Çelik | 6.49% | 32.702.00% | 2.00% | 228.9B | 24.69 | 0.68 | 10.04 | 1.36% |
 ASTORAstor Enerji | 4.15% | 163.80−7.56% | −7.56% | 163.5B | 32.46 | 4.00 | 12.28 | 1.15% |
 SASASasa Polyester | 2.17% | 1.59−0.62% | −0.62% | 83.5B | — | 0.39 | 16.29 | — |
 TRALTTürk Altin İşletmeleri | 2.09% | 38.181.33% | 1.33% | 122.3B | 26.23 | 2.22 | 10.03 | 1.15% |
 PGSUSPegasus | 1.97% | 155.30−1.83% | −1.83% | 77.7B | — | 0.59 | 7.79 | — |
Other Indices
About the X10XB Index
The X10XB (X10XB) index has 10 constituents. The five heaviest weights are ASELS (24.18%), TUPRS (20.01%), BIMAS (19.05%), THYAO (13.05%), KCHOL (6.83%), which together make up 83.1% of the index. As of Nov 13, 2026, 18:19, 6 constituents are up and 4 are down; the index has returned 0.32% today and 31.24% year to date.
Frequently Asked Questions
Which stocks are in the X10XB index?
The X10XB index has 10 constituents: ASELS, TUPRS, BIMAS, THYAO, KCHOL, EREGL, ASTOR, SASA, TRALT, PGSUS.
Which stock has the highest weight in the X10XB index?
ASELS is the largest constituent with a weight of 24.18%, followed by TUPRS (20.01%) and BIMAS (19.05%).
Is ASELS in the X10XB index?
Yes. ASELS is a constituent of the X10XB index with a weight of 24.18%. You can see any stock’s index memberships in the Index Memberships section of its stock page.
How are index weights determined?
In Borsa Istanbul indices each stock is weighted by its free-float market cap, with a cap on any single stock set by the index rules. Weights move intraday with prices.