Cigna Corp (CI)
Cigna is an American multinational managed healthcare and insurance company based in Bloomfield, Connecticut. Its insurance subsidiaries are major providers of medical, dental, disability, life and accident insurance and related products and services, the majority of which are offered through employers and other groups (e.g. governmental and non-governmental organizations, unions and associations).
Stock Price Trends
Stock price trends estimated using linear regression.
Key facts
- The primary trend is decreasing.
- The decline rate of the primary trend is 7.48% per annum.
- CI price at the close of July 11, 2025 was $303.27 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 32.75% per annum.
- CI price at the close of July 11, 2025 was lower than the bottom border of the secondary price channel by $3.10 (1.01%). This indicates a possible reversal in the secondary trend direction.
- The direction of the secondary trend is opposite to the direction of the primary trend. This indicates a possible reversal in the direction of the primary trend.
Linear Regression Model
Model equation:
Yi = α + β × Xi + εi
Top border of price channel:
Exp(Yi) = Exp(a + b × Xi + 2 × s)
Bottom border of price channel:
Exp(Yi) = Exp(a + b × Xi – 2 × s)
where:
i - observation number
Yi - natural logarithm of CI price
Xi - time index, 1 day interval
σ - standard deviation of εi
a - estimator of α
b - estimator of β
s - estimator of σ
Exp() - calculates the exponent of e
Primary Trend
Start date: February 7, 2024
End date: July 11, 2025
a = 6.1106
b = -0.0002
s = 0.0566
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0002) – 1
= -7.48%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0566) – 1
= 25.42%
February 7, 2024 calculations
Top border of price channel:
Exp(Y898)
= Exp(a + b × X898 + 2 × s)
= Exp(a + b × 1,303 + 2 × s)
= Exp(6.1106 + -0.0002 × 1,303 + 2 × 0.0566)
= Exp(5.9462)
= $382.28
Bottom border of price channel:
Exp(Y898)
= Exp(a + b × X898 – 2 × s)
= Exp(a + b × 1,303 – 2 × s)
= Exp(6.1106 + -0.0002 × 1,303 – 2 × 0.0566)
= Exp(5.7197)
= $304.81
July 11, 2025 calculations
Top border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(6.1106 + -0.0002 × 1,823 + 2 × 0.0566)
= Exp(5.8354)
= $342.19
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(6.1106 + -0.0002 × 1,823 – 2 × 0.0566)
= Exp(5.6089)
= $272.84
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 7.48% per annum.
- CI price at the close of July 11, 2025 was $303.27 and was inside the primary price channel.
Secondary Trend
Start date: December 11, 2024
End date: July 11, 2025
a = 4.3920
b = 0.0008
s = 0.0411
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0008) – 1
= 32.75%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0411) – 1
= 17.88%
December 11, 2024 calculations
Top border of price channel:
Exp(Y1,111)
= Exp(a + b × X1,111 + 2 × s)
= Exp(a + b × 1,611 + 2 × s)
= Exp(4.3920 + 0.0008 × 1,611 + 2 × 0.0411)
= Exp(5.7248)
= $306.36
Bottom border of price channel:
Exp(Y1,111)
= Exp(a + b × X1,111 – 2 × s)
= Exp(a + b × 1,611 – 2 × s)
= Exp(4.3920 + 0.0008 × 1,611 – 2 × 0.0411)
= Exp(5.5602)
= $259.88
July 11, 2025 calculations
Top border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,823 + 2 × s)
= Exp(4.3920 + 0.0008 × 1,823 + 2 × 0.0411)
= Exp(5.8893)
= $361.16
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,823 – 2 × s)
= Exp(4.3920 + 0.0008 × 1,823 – 2 × 0.0411)
= Exp(5.7248)
= $306.37
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 32.75% per annum.
- CI price at the close of July 11, 2025 was lower than the bottom border of the secondary price channel by $3.10 (1.01%). This indicates a possible reversal in the secondary trend direction.