According to the big data analysis of star brand reputation in October 2025, BTS ranked first. The Korea Corporate Reputation Research Institute analyzed 272,064,563 pieces of star brand big data from September 28, 2025, to October 28, 2025, to derive this result. This is the outcome of measuring participation index, media index, communication index, and community index through consumer behavior analysis. Compared to the 274,117,319 data points in September, this is a 0.75% decrease.

The brand reputation index reflects the impact of consumers' online behavior on brand consumption and measures the relationship with consumers, positive and negative evaluations, media interest, and consumer communication regarding star brands. This analysis targets star brands including entertainers, singers, trot singers, drama actors, movie actors, boy groups, girl groups, and athletes, analyzing the relationship with consumers through a big data reputation algorithm.

The top 30 star brand reputation rankings for October 2025 were analyzed as follows: BTS, Lim Young-woong, IVE, Son Heung-min, BLACKPINK, Yoo Jae-suk, TWICE, Kim Yong-bin, Byun Woo-seok, Ryu Hyun-jin, Kim Yeon-koung, Jun Hyun-moo, Jo Woo-jin, Lee Chae-min, SEVENTEEN, Lee Byung-hun, Park Ji-hyun, Stray Kids, Faker, Park Na-rae, Park Jin-young, WOODS, Cho Yong-pil, Kim Woo-bin, DAY6, Kim Go-eun, SHINee, Choo Sung-hoon, (G)I-DLE, and NCT.

BTS, ranked first, had a participation index of 167,277, media index of 2,259,298, communication index of 3,725,463, and community index of 4,269,167, resulting in a brand reputation index of 10,421,205. This is an 11.21% increase compared to 9,370,434 in September.

Lim Young-woong, ranked second, had a participation index of 905,091, media index of 1,788,831, communication index of 3,069,909, and community index of 2,437,684, with a brand reputation index of 8,201,514. This is a 26.35% decrease compared to 11,135,899 in September.

IVE, ranked third, had a participation index of 242,216, media index of 1,624,897, communication index of 2,618,623, and community index of 2,969,820, resulting in a brand reputation index of 7,455,557. This is a 37.27% increase compared to 5,431,334 in September.

Son Heung-min, ranked fourth, had a participation index of 1,465,694, media index of 1,341,868, communication index of 2,060,147, and community index of 2,331,161, with a brand reputation index of 7,198,871. This is a 29.95% decrease compared to 10,276,030 in September.

BLACKPINK, ranked fifth, had a participation index of 124,054, media index of 1,129,442, communication index of 2,530,294, and community index of 3,268,747, resulting in a brand reputation index of 7,052,536. This is a 2.34% increase compared to 6,891,182 in September.

Koo Chang-hwan, director of the Korea Corporate Reputation Research Institute, stated, "According to the big data analysis of star brand reputation in October 2025, the BTS brand ranked first. The BTS brand reflects the high global fan interest in their full-group world tour. The Lim Young-woong brand ranked second with outstanding activities in broadcasting, concerts, and music. The IVE brand, ranked third, continues to achieve overwhelming records on music broadcast channels. The Son Heung-min brand, ranked fourth, is loved by fans even in new challenges and has made successful records. The BLACKPINK brand, ranked fifth, communicates with fans through their world tour."

Director Koo also added, "The analysis of star brand big data in October 2025 shows a 0.75% decrease compared to 274,117,319 in September. Detailed analysis shows brand consumption increased by 2.69%, brand issues decreased by 3.22%, brand communication increased by 1.01%, and brand diffusion decreased by 1.55%."

The top 100 star brand reputation rankings for October 2025 included BTS, Lim Young-woong, IVE, Son Heung-min, BLACKPINK, Yoo Jae-suk, TWICE, Kim Yong-bin, Byun Woo-seok, Ryu Hyun-jin, Kim Yeon-koung, Jun Hyun-moo, Jo Woo-jin, Lee Chae-min, SEVENTEEN, Lee Byung-hun, Park Ji-hyun, Stray Kids, Faker, Park Na-rae, Park Jin-young, WOODS, Cho Yong-pil, Kim Woo-bin, DAY6, Kim Go-eun, SHINee, Choo Sung-hoon, (G)I-DLE, NCT, Red Velvet, Kim Jong-min, Shin Ye-eun, Kim Da-mi, Kim Min-jae, Lee Young-ae, Lee Chan-won, Lee Soo-ji, Lee Dae-ho, Rowoon, BIGBANG, Kang Ho-dong, Park Ji-sung, Koo Ja-wook, Shin Dong-yup, Jun Ji-hyun, Lee Jong-suk, Kim Jun-ho, Lee Jung-jae, Park Bo-gum, Seo Jang-hoon, Song Joong-ki, Kian84, Kim Sook, Kim Young-kwang, EXO, WJSN, Kim Jong-kook, Kim Gun-woo, Son Ye-jin, HIKEY, TOURS, Park Seo-jin, Hyun Bin, Apink, Curtis, Lee Kyung-kyu, Ma Dong-seok, Oh My Girl, Song Ga-in, Park Bo-young, Hearts to Hearts, Kim Ha-sung, Gong Yoo, Heo Nam-jun, Go Hyun-jung, Kang Daniel, Kiki, Kang Min-ho, Park Jung-min, LE SSERAFIM, Lee Young-ja, Sung Si-kyung, Lee Re, Uhm Jung-hwa, Lee Jung-hoo, Baby Monster, Kim Gura, Han Ji-min, Young Tak, ENHYPEN, Ahn Jung-hwan, Im Yoon-ah, Song Seung-heon, Jo Se-ho, The Boyz, Han Suk-kyu, Zerobaseone, Cha Eun-woo, and Tak Jae-hoon.