%A ANDRA SETIAWAN %O Penelitian ini bertujuan untuk menganalisis pengaruh fear of missing out terhadap tingkat berbelanja online di Shopee pada siswa SMAN 1 Bogor selama Harbolnas. Teori Perbandingan Sosial digunakan untuk menjelaskan kecenderungan siswa untuk membandingkan diri dengan orang lain dan merasa takut tertinggal yang kemudian mendorong perilaku belanja online siswa. Penelitian ini menggunakan pendekatan kuantitatif dengan metode survei. Teknik Purposive Sampling digunakan untuk memilih 91 siswa sebagai responden. Hasil penelitian menunjukkan fear of missing out berpengaruh positif dan signifikan terhadap tingkat berbelanja online di Shopee pada siswa SMAN 1 Bogor selama Harbolnas. Nilai t hitung (8,735) lebih besar dari ttabel (1,987) dan nilai signifikansi fear of missing out kurang dari 0,05 (< 0,001). Analisis regresi linear sederhana menghasilkan koefisien regresi 0,704 yang mengindikasikan bahwa fear of missing out berpengaruh positif terhadap tingkat berbelanja online. Uji koefisien determinasi menghasilkan R Square 0,462. Artinya, fear of missing out menjelaskan 46,2% variasi tingkat berbelanja online di Shopee pada siswa SMAN 1 Bogor selama Harbolnas. Sisanya, 53,8% variasi tingkat berbelanja online dipengaruhi oleh faktor lain. %K Fomo, Online Shopping Level, SMAN 1 Bogor Students, Shopee, Harbolnas Fomo, Tingkat Berbelanja Online, Siswa SMAN 1 Bogor, Shopee, Harbolnas %T PENGARUH FEAR OF MISSING OUT TERHADAP TINGKAT BERBELANJA ONLINE DI SHOPEE PADA SISWA SMAN 1 BOGOR SELAMA HARBOLNAS %I UNIVERSITAS SULTAN AGENG TIRTAYASA %X This research aims to analyze the influence of fear of missing out on online shopping levels at Shopee among students of SMAN 1 Bogor during Harbolnas. The Social Comparison Theory is used to explain students’ tendency to compare themselves with others and feel fear of missing out, which then drives their online shopping behavior. This research uses a quantitative approach with a survey method. The purposive sampling technique was used to select 91 students as respondents. The research results show that fear of missing out has a positive and significant influence of fear of missing out on online shopping levels at Shopee among students of SMAN 1 Bogor during Harbolnas. The calculated t-value (8.735) is greater than the t-table (1.987), and the significance value of fear of missing out is less than 0.05 (< 0.001). Simple linear regression analysis produced a regression coefficient of 0.704, indicating that fear of missing out has a positive influence on the level of online shopping. The coefficient of determination test resulted in an R square of 0.462. This means that the fear of missing out explains 46.2% of the variation in online shopping levels on Shopee among students of SMAN 1 Bogor during Harbolnas. The remaining 53.8% of the variation in online shopping levels is influenced by other factors. %L eprintuntirta48260 %D 2025