Best Selling Muji Fountain Pen: See Top Product Rankings by Sales Volume & Market Trends
Looking for the most popular muji fountain pen products in the market? Our report leverages real Amazon monthly sales data to identify the best-performing products and the fastest-growing opportunities within the search results for the keyword "muji fountain pen." Whether you're searching for winning products to launch or monitoring market trends and competitor performance, this report provides the insights you need.
Based on monthly sales analytics, our Shoppers' Top Picks highlights that ASIN B004QHI43S currently leads the muji fountain pen market with 4K monthly sales, followed closely by B09ZK13551 with 2K monthly sales and B002G4DHGM with 1K monthly sales. Meanwhile, ASIN B09ZK13551 stands out as the fastest-growing product, achieving an impressive 11.1% month-over-month sales growth. By tracking competitor sales performance and shifts in market demand, sellers can uncover emerging opportunities and make more informed product and marketing decisions.
Top Selling Muji Fountain Pen
As of June 2026, we analyzed 128 tracked products in Amazon's "muji fountain pen" search results and generated the following sales chart and product rankings based on monthly sales data. The ranking below highlights the Top 10 products by estimated monthly sales. According to the latest data, these products generated between 1,000 and 4,000 monthly sales. B004QHI43S leads the muji fountain pen market with an estimated 4,000 monthly sales, down 50.0% from the previous month.
Sakura Pigma Micron, Graphic & Brush Fineline Pens, Archival Black Ink, 8 PK 30067
For sellers and category managers benchmarking the muji fountain pen price landscape, we segmented all 128 tracked listings in Amazon's live "muji fountain pen" search results across the full price spectrum, and surfaced the top 3 price tiers by share below to highlight where competition concentrates and where pricing gaps exist.
Leading the distribution, the $10.00 ~ $20.00 band is the category's best muji fountain pen price zone, absorbing 41% of the assortment (180 products) — this is where listing density is highest and where new entrants face the steepest competition for share-of-voice. Use the tier breakdown below to identify the top-ranking ASIN, monthly sales velocity, and rating profile within each band — essential inputs for pricing strategy, sourcing decisions, and competitive benchmarking in the muji fountain pen category.
Top 3 Price Tiers
$10.00 ~ $20.00 is the most competitive price tier, containing 41% of tracked products.
Top products in this price tier
"Muji fountain pen" Search Volume and Market Trends on Amazon
Amazon keyword search volume data for "muji fountain pen" in the US marketplace. This report provides insights into keyword search volume, Amazon search trends, competition levels, and conversion efficiency for sellers and brands.
During the week of 2026-05-31 to 2026-06-06, the Amazon USweekly search volume for "muji fountain pen" was approximately 232 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #768,424, dropping 80,488 positions from the previous week. Additionally, the top 3 products for this keyword capture 83.7% of the total click share and 50% of the conversion share, indicating the level of market concentration.
muji fountain pen
Search Volume Trend
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