BIST Participation 100 Stocks

As of Nov 12, 2026, 18:19, the BIST Participation 100 (XK100) index has 100 constituents; the largest weight is ASELS (10.85%).

Constituents: 100; 82 ▲ · 15 ▼
Index return · 1D: 1.95%; today
Top 5 weight: 44.2%; ASELS · TUPRS · BIMAS · EREGL · EKGYO
Highest weight: ASELS; 10.85% of index

Period Returns

Day: 1.95%
Week: 2.46%
Month: −7.41%
YTD: 6.64%
1 year: 10.83%

Constituent Stocks

BIST Participation 100 Index Constituents

ASELSAselsan	10.85%	344.750.44%	0.44%	1.6T	32.35	4.69	27.83	0.13%
TUPRSTüpraş	10.04%	357.002.44%	2.44%	687.9B	5.30	1.32	2.90	1.78%
BIMASBim Mağazalar	9.81%	388.002.78%	2.78%	465.6B	13.41	2.10	10.07	0.60%
EREGLEreğli Demir Çelik	9.44%	32.061.65%	1.65%	224.4B	24.21	0.67	9.88	1.36%
EKGYOEmlak Konut GMYO	4.07%	18.812.40%	2.40%	71.5B	—	0.44	6.44	2.86%
MPARKMLP Sağlık	4.06%	452.503.55%	3.55%	86.4B	12.09	1.96	5.62	—
ENERYEnerya Enerji	3.20%	14.452.48%	2.48%	130B	20.84	1.87	16.76	0.19%
ENJSAEnerjisa Enerji	3.13%	118.50−0.42%	−0.42%	140B	13.93	1.17	4.69	4.15%
KRDMDKardemir (D)	3.02%	38.882.53%	2.53%	44.3B	7.74	0.39	4.98	0.44%
GUBRFGübre Fabrik.	2.30%	280.500.00%	0.00%	93.7B	10.65	2.21	7.36	1.12%
MAVIMavi Giyim	2.30%	35.521.89%	1.89%	28.2B	13.20	1.85	2.90	3.83%
PETKMPetkim	2.28%	16.791.08%	1.08%	42.6B	—	0.55	32.84	—
AHGAZAhlatci Dogalgaz	2.01%	46.200.65%	0.65%	120.1B	20.76	1.90	20.92	0.18%
TKFENTekfen Holding	1.78%	204.802.97%	2.97%	75.8B	—	1.92	32.84	0.47%
CIMSACimsa	1.61%	42.341.00%	1.00%	40B	8.50	0.98	8.07	1.50%
CVKMDCVK Maden	1.46%	13.26−0.60%	−0.60%	50.1B	32.85	3.34	20.26	—
GMTASGimat Magazacilik	1.20%	47.880.80%	0.80%	14.4B	—	2.97	—	—
GLRMKGulermak Agir Sanayi	1.05%	111.809.93%	9.93%	36.1B	12.29	1.21	7.16	—
SELECSelcuk Ecza Deposu	0.96%	92.405.36%	5.36%	57.4B	19.64	1.45	4.35	0.50%
YEOTKYeo Teknoloji Enerji	0.91%	27.24−0.22%	−0.22%	22.6B	9.28	3.49	5.15	—
ALBRKAlbaraka Türk	0.91%	8.56−1.38%	−1.38%	21.4B	2.22	0.63	—	2.91%
LOGOLogo Yazilim	0.86%	126.001.04%	1.04%	12B	12.81	2.45	5.27	3.61%
ISDMRIskenderun Demir Çelik	0.83%	51.450.88%	0.88%	149.2B	10.70	0.89	9.35	7.38%
CWENECW Enerji	0.77%	16.8310.00%	10.00%	18.1B	8.60	0.77	7.11	—
TCKRCKirac Galvaniz	0.76%	125.509.99%	9.99%	21.3B	7.98	2.55	7.46	—
ARDYZArd Bilişim Teknolojileri	0.75%	53.253.40%	3.40%	17.2B	10.13	2.26	4.69	0.12%
BASGZBaskent Dogalgaz GMYO	0.71%	36.300.50%	0.50%	25.4B	7.50	0.69	3.51	4.15%
AKFISAkfen İnşaat	0.68%	14.484.17%	4.17%	55.3B	27.41	1.38	77.21	—
SNGYOSinpas GMYO	0.65%	2.660.38%	0.38%	10.6B	11.00	0.16	4.96	—
GRSELGur-Sel Turizm Taşımacılık	0.64%	253.251.20%	1.20%	25.8B	7.25	1.70	6.11	0.23%
BMSTLBMS Birlesik Metal	0.61%	36.40−1.36%	−1.36%	10.9B	—	6.41	51.33	—
AKFYEAkfen Yen. Enerji	0.57%	3.075.86%	5.86%	22B	7.79	0.30	11.35	—
KCAERKocaer Çelik	0.52%	10.200.39%	0.39%	19.5B	22.29	1.27	6.60	1.13%
BERABera Holding	0.50%	10.271.58%	1.58%	7B	—	0.19	2.17	0.31%
GERELGersan Elektrik	0.48%	21.981.29%	1.29%	8.2B	19.23	1.90	9.22	—
ALTNYAltinay Savunma	0.45%	11.302.91%	2.91%	11.3B	46.70	1.92	15.71	—
ORGEOrge Enerji Elektrik	0.45%	19.422.21%	2.21%	7.8B	7.72	1.38	3.23	—
AVPGYAvrupakent GMYO	0.43%	48.322.90%	2.90%	19.3B	12.24	0.39	—	4.21%
NETCDNetcad Yazilim	0.42%	95.605.58%	5.58%	13.1B	11.03	3.27	9.86	3.36%
ATATPAtp Yazilim	0.42%	200.30−0.55%	−0.55%	18.8B	7.53	2.52	4.58	0.40%
EGGUBEge Gübre	0.39%	80.202.49%	2.49%	8B	10.89	0.75	3.80	1.97%
LMKDCLimak Dogu Anadolu	0.38%	21.902.34%	2.34%	11.3B	6.69	1.20	3.86	5.71%
HRKETHareket Proje Tasimaciligi	0.37%	7.43−9.50%	−9.50%	12B	—	1.38	11.00	—
BUCIMBursa Çimento	0.35%	4.180.48%	0.48%	6.3B	—	0.31	7.08	0.99%
MEGMTMega Metal	0.35%	3.828.52%	8.52%	9.7B	8.06	1.78	8.66	—
BETAEBeta Enerji ve Teknoloji	0.34%	49.609.98%	9.98%	20.1B	37.34	3.12	1,314.25	—
BLUMEBlume Metal Kimya	0.33%	30.002.04%	2.04%	5.2B	—	8.41	67.20	—
SMRTGSmart Gunes Enerjisi Tek.	0.32%	4.282.64%	2.64%	7.8B	13.95	1.00	6.98	—
AYDEMAydem Enerji	0.32%	22.563.87%	3.87%	15.9B	11.83	0.30	8.22	1.70%
OBAMSOba Makarnacilik	0.31%	3.650.83%	0.83%	10.5B	—	0.81	16.05	0.51%
KARSNKarsan Otomotiv	0.30%	7.552.86%	2.86%	6.8B	13.06	0.81	5.03	—
MOGANMogan Enerji	0.29%	9.726.81%	6.81%	23.7B	—	0.26	9.78	—
DOFRBDof Robotik	0.29%	57.754.43%	4.43%	9B	30.55	3.65	27.98	—
POLHOPolisan Holding	0.27%	14.51−1.02%	−1.02%	11B	—	0.74	17.20	—
ARASEDogu Aras Enerji	0.26%	62.900.32%	0.32%	15.7B	6.29	0.60	2.16	1.75%
FONETFonet Bilgi Teknolojileri	0.26%	4.032.54%	2.54%	3.8B	10.82	1.64	7.43	—
GOKNRGoknur Gida	0.26%	12.390.08%	0.08%	4.3B	12.95	0.37	3.38	2.42%
FORTEForte Bilgi İletişim	0.26%	90.005.26%	5.26%	6B	5.38	1.66	4.37	0.21%
MCARDMetropal Kurumsal Hizmetler	0.25%	121.00−0.82%	−0.82%	11.2B	16.58	3.67	45.37	2.91%
EGPROEge Profil	0.25%	34.22−1.44%	−1.44%	18.6B	8.54	1.54	5.13	1.77%
NTGAZNaturelgaz	0.25%	8.504.42%	4.42%	5.9B	5.50	0.94	2.92	6.42%
AKCNSAkcansa	0.25%	193.50−0.51%	−0.51%	37B	39.10	1.22	11.59	0.83%
TUREXTureks Turizm Taşımacılık	0.25%	5.140.00%	0.00%	5.6B	14.94	0.59	2.51	—
KGYOKoray GMYO	0.24%	7.510.40%	0.40%	7.5B	—	5.49	−20.26	—
SDTTRSDT Uzay ve Savunma	0.23%	11.712.72%	2.72%	7.5B	—	2.75	306.44	—
BINHO1000 Yatirimlar Hol.	0.22%	4.067.69%	7.69%	5.2B	—	0.37	−45.05	—
KATMRKatmerciler Ekipman	0.22%	1.130.89%	0.89%	2.4B	5.72	0.22	12.57	—
IHLASIhlas Holding	0.20%	0.751.35%	1.35%	2.3B	—	0.74	−1.34	—
SAFKRSafkar Ege Sogutmacilik	0.19%	13.64−1.87%	−1.87%	2.7B	22.21	1.82	6.64	—
TARKMTarkim Bitki Koruma	0.19%	331.501.77%	1.77%	7B	79.34	2.01	23.78	—
KZBGYKizilbuk GYO	0.19%	1.190.85%	0.85%	4.8B	3.09	0.17	4.23	—
KBORUKuzey Boru	0.17%	10.542.03%	2.03%	6.3B	12.58	1.01	6.67	0.19%
ESCOMEscort Teknoloji	0.17%	3.521.15%	1.15%	2.5B	1.32	0.54	—	—
SSAATSaat ve Saat Sanayi	0.17%	22.921.78%	1.78%	15.1B	9.64	2.42	−55.02	—
EMPAEEmpa Elektronik	0.17%	39.984.71%	4.71%	6.8B	52.65	3.30	14.18	0.09%
IZFASİzmir Firca	0.16%	12.74−5.49%	−5.49%	2.3B	—	5.01	78.08	—
KOCMTKoç Metalurji	0.16%	2.604.00%	4.00%	6.5B	—	0.48	19.29	—
MEYSUMeysu Gida	0.16%	8.154.76%	4.76%	7.1B	20.34	1.37	14.02	0.38%
LINKLink Bilgisayar	0.15%	2.740.74%	0.74%	2.4B	7.31	1.14	4.08	—
SRVGYServet GMYO	0.14%	1.85−1.07%	−1.07%	6B	1.72	0.18	2.73	4.16%
YIGITYigit Aku	0.14%	13.420.98%	0.98%	4B	62.02	0.47	3.66	—
FZLGYFuzul GMYO	0.14%	6.917.63%	7.63%	8.6B	—	1.81	−103.28	—
PARSNParsan	0.13%	51.002.49%	2.49%	4.4B	—	0.27	88.48	—
NATENNaturel Enerji	0.13%	3.094.04%	4.04%	2.5B	—	0.30	37.34	—
TKNSATeknosa Ic ve Dış Ticaret	0.13%	11.291.80%	1.80%	2.3B	—	−1.35	3.02	—
HATSNHatsan Gemi	0.12%	24.703.35%	3.35%	5.5B	—	0.83	−9.72	—
ATAKPAtakey Patates	0.12%	38.480.73%	0.73%	5.3B	—	0.72	13.22	1.23%
BIENYBien Yapi Ürünleri	0.12%	14.493.28%	3.28%	5.2B	—	0.35	6.74	—
ONCSMOncosem Onkolojik Sistemler	0.12%	104.206.87%	6.87%	2.5B	27.59	4.44	7.74	—
FORMTFormet Metal ve Cam	0.11%	0.941.08%	1.08%	1.1B	—	0.38	51.69	—
MOPASMopas Marketcilik	0.11%	16.402.18%	2.18%	4.5B	14.24	0.73	1.73	1.38%
BURCEBurcelik	0.10%	20.681.47%	1.47%	1.7B	10.32	1.08	−17.71	—
VAKKOVakko Tekstil	0.10%	47.48−0.75%	−0.75%	7.6B	—	0.69	4.33	6.94%
EKOSEkos Teknoloji	0.09%	2.641.54%	1.54%	3B	—	0.82	−91.76	—
IMASMImas Makina	0.09%	1.360.00%	0.00%	1.3B	—	0.36	12.18	—
SURGYSur Tatil Evleri GMYO	0.09%	17.225.51%	5.51%	2.9B	—	0.25	—	—
UCAYMUcay Mühendislik	0.08%	12.073.87%	3.87%	2.7B	34.14	1.14	3.89	—
TMPOLTemapol Polimer Plastik	0.07%	68.559.94%	9.94%	971.7M	—	0.98	7.06	0.47%
BINBNBin Ulaşım Teknolojileri	0.07%	35.689.99%	9.99%	4B	—	2.21	−12.23	—
LXGYOLuxera GMYO	0.06%	5.533.17%	3.17%	1.8B	—	0.90	−9.85	—

Ratios are calculated from the latest published financial statements.50 / 100

Other Indices

About the BIST Participation 100 Index

The BIST Participation 100 (XK100) index has 100 constituents. The five heaviest weights are ASELS (10.85%), TUPRS (10.04%), BIMAS (9.81%), EREGL (9.44%), EKGYO (4.07%), which together make up 44.2% of the index. As of Nov 12, 2026, 18:19, 82 constituents are up and 15 are down; the index has returned 1.95% today and 6.64% year to date.

Review changes: Borsa Istanbul participation index periodic changes (PDF)

Frequently Asked Questions

Which stocks are in the BIST Participation 100 index?

The BIST Participation 100 index has 100 constituents: ASELS, TUPRS, BIMAS, EREGL, EKGYO, MPARK, ENERY, ENJSA, KRDMD, GUBRF, MAVI, PETKM, AHGAZ, TKFEN, CIMSA, CVKMD, GMTAS, GLRMK, SELEC, YEOTK, ALBRK, LOGO, ISDMR, CWENE, TCKRC, ARDYZ, BASGZ, AKFIS, SNGYO, GRSEL, BMSTL, AKFYE, KCAER, BERA, GEREL, ALTNY, ORGE, AVPGY, NETCD, ATATP, EGGUB, LMKDC, HRKET, BUCIM, MEGMT, BETAE, BLUME, SMRTG, AYDEM, OBAMS, KARSN, MOGAN, DOFRB, POLHO, ARASE, FONET, GOKNR, FORTE, MCARD, EGPRO, NTGAZ, AKCNS, TUREX, KGYO, SDTTR, BINHO, KATMR, IHLAS, SAFKR, TARKM, KZBGY, KBORU, ESCOM, SSAAT, EMPAE, IZFAS, KOCMT, MEYSU, LINK, SRVGY, YIGIT, FZLGY, PARSN, NATEN, TKNSA, HATSN, ATAKP, BIENY, ONCSM, FORMT, MOPAS, BURCE, VAKKO, EKOS, IMASM, SURGY, UCAYM, TMPOL, BINBN, LXGYO.

Which stock has the highest weight in the BIST Participation 100 index?

ASELS is the largest constituent with a weight of 10.85%, followed by TUPRS (10.04%) and BIMAS (9.81%).

Is ASELS in the BIST Participation 100 index?

Yes. ASELS is a constituent of the BIST Participation 100 index with a weight of 10.85%. 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.