CSTM Unusual Option Activity
Constellium SE (CSTM) option volume on Nov 4, 2026 was 3.0% of open interest, well above the 20-day average of 1.2%. Calls made up 14.4% of the volume.
CSTM Unusual Options FAQ
What makes option activity unusual?
Option activity is usually called unusual when a contract trades much more volume than its open interest, which can mean traders are opening new positions.
Is CSTM seeing unusual options activity?
On Nov 4, 2026, Constellium SE options traded 1.01K contracts against 33.0K open, a volume to open interest ratio of 0.03, well above its 20-day average. The table above lists the contracts with the highest ratios.
Are CSTM traders trading more calls or puts?
Calls made up 14.4% of Constellium SE option volume on Nov 4, 2026, a put/call ratio of 5.93, so puts outnumber calls. The CSTM option volume chart shows calls and puts by strike.
What is Constellium SE?
Constellium SE is engaged in the development, manufacture and sale of a broad range of high value-added specialty rolled and extruded aluminum products to the aerospace, space, defense, packaging, automotive, commercial transportation and general industrial end-markets.