Short interest in COSM plunged 27% overnight. CEO Siokas has bought $1.3M of stock since early January. Utilisation dropped to 38% after hitting a near-term peak of 66% last week.
COSM closed at $0.38 on April 24. The stock gained 6.4% on the day but still sits 6.5% lower for the week. Over the past month shares rallied 12.9%.
Short interest collapsed to 870k shares on April 23, down 27% in a single day. SI now sits at 2.5% of free float. The reading represents a sharp reversal from the week prior when shares short had climbed to 1.9M—a level that marked the highest point in the past 30 days. As recently as April 6, short interest stood at just 20k shares. The past month saw a 263% surge in total shares short before the recent pullback.
Cost to borrow stands at 1.66%. CTB rose 194% over the trailing month, from 0.56% on March 26 to the current level. The metric has oscillated between 1.09% and 1.77% over the past two weeks.
Utilisation dropped to 38% from 66% on April 17. That earlier peak represented the highest reading since late March. The 52-week high of 71% was recorded earlier in the fiscal year. Recent utilisation has been volatile—dipping to 18% in early April before doubling within days.
The put/call ratio sits at 0.0007, indicating heavily skewed call sentiment. The 20-day mean PCR is 0.0017 with a standard deviation of 0.001. The current reading produces a z-score of -0.73—modestly below the short-term average. Over the past year PCR has ranged from 0.0 to 0.0124. The metric has compressed steadily since late March when it hovered near 0.006.
One analyst maintains coverage with a price target of $4.50. The consensus data is over 100 days old and no recent rating changes have been recorded.
Enterprise value was $27.4M as of year-end 2025. No recent changes in valuation multiples are available.
EPS surprise ranks at the 98th percentile. Analyst recommendation differential sits at the 50th percentile. Dividend score is at the 28th percentile. Short score ranks at the 30th percentile and sector score at the 29th. Days to cover ranks at the 39th percentile and utilisation at the 21st.
Chairman and CEO Grigorios Siokas increased his stake by 2.1M shares, now holding 8.9M shares representing 17.5% of the company. Director Andreas Bovopoulos added 2.3M shares and holds 3.7M shares, a 7.4% stake. Renaissance Technologies added 242k shares to bring its position to 335k shares. Citadel Advisors trimmed its holding by 102k shares to 123k. Two Sigma Securities initiated a 36k share position. XTX Markets added 34k shares. State Street increased by 21k shares.
CEO Grigorios Siokas purchased $1.29M of stock over the trailing 90 days, acquiring 2.7M net shares. The buying stretched across 10 separate transactions between December 19 and February 12. The largest single purchase was 494k shares at $0.45 on January 14 for $220k. On February 12 he bought 389k shares at $0.37 for $145k. Additional buys include 353k shares at $0.50 on January 20 for $175k, and 291k shares at $0.41 on February 11 for $120k.
The company recently reported earnings on April 15. The next earnings event is scheduled for April 29. Prior prints occurred in November 2025 and August 2025. Historical price reaction data is not available for these events.
The next earnings call is set for April 29 at 8:00 PM UTC. Watch whether short interest continues to decline or stabilizes near current levels. CEO Siokas's sustained buying campaign through early February represents material insider conviction.
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