Mamiya-OP Co., Ltd. (7991) short interest & options flow
TSEMamiya-OP heads into its May 13 earnings with one of the most expensive borrow markets it has seen in months — and a stock already down 13% in April. The lending market tells the most charged story this week. Cost to borrow has roughly doubled over the past month, climbing from around 2.8% in late February to 6.6% now. The move is not smooth: CTB briefly touched 10.3% on March 26…
- Market cap
- $66M
- Next earnings
- 3 Feb 2027
Key data as of 12 Nov 2026

7991 news and analysis
RSSNo long-form analysis yet for 7991. Pulse alerts and the live data picture are available on ORTEX.
Open 7991 on ORTEX →Want the live picture for 7991?
Short interest updated daily, real-time options flow, analyst consensus deltas, 13F positioning, ORTEX Alpha signals, and every article ORTEX publishes for 7991 — free to start on ORTEX.
Sign up for free →Open 7991 on ORTEX