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Unusual Option Volume

ATYR Atyr Pharma0.99-0.06 (-5.7%)

Atyr Pharma trades 31,737 contracts. The company has the following event: European Respiratory Society Congress on Sep 30, 2025. News: aTyr Pharma, Inc. (ATYR) Faces Investor Scrutiny After EFZO-FIT Study Failure Drives Shares 80% Lower -- Hagens Berman
Unusual Option Volume

ATYR Atyr Pharma0.99-0.09 (-8.3%)

Atyr Pharma trades 16,583 contracts. The company has the following event: European Respiratory Society Congress on Sep 30, 2025. News: aTyr Pharma, Inc. (ATYR) Faces Investor Scrutiny After EFZO-FIT Study Failure Drives Shares 80% Lower -- Hagens Berman
Unusual Option Volume

ATYR Atyr Pharma1.16+0.14 (+14.3%)

Atyr Pharma trades 11,362 contracts. The company has the following event: European Respiratory Society Congress on Sep 30, 2025.
Large Decrease in Open Interest

ATYR Atyr Pharma1.10+0.09 (+8.4%)

The open interest (OI) on the 19-Sep-25 2.00 strike increased by 1,158 call contracts and decreased by 15,725 puts. The total OI for the expiration was decreased by 3x the average option volume. View Open Interest
$ATYR is facing a lot of negative pressure with an imbalance of -577 K. Learn more about net option delta
Large Increase in Open Interest

ATYR Atyr Pharma1.02-5.01 (-83.1%)

The open interest (OI) on the 19-Sep-25 2.00 strike increased by 154 call contracts and 15,227 puts. The total OI for the expiration was increased by 5x the average option volume. View Open Interest
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