Stock and option volume for Aetna (AET) and Cigna (CI) popped up on the radar yesterday. Aetna’s and Cigna’s stocks were both down around 1.5% yesterday, yet with a large amount of option activity. Not any significant news to go along with all of this activity either. Cigna provides health care related products and operates in five segments: Health Care, Disability and Life, International Run-off Reinsurance and Miscellaneous. Aetna provides health care products primarily for the U.S. market. Aetna’s market segments include: Health Care, Group Insurance, and Large Case Pensions.