Delta Air Lines Inc (DAL)
Delta Air Lines, Inc., typically referred to as Delta, is one of the major airlines of the United States and a legacy carrier. It is headquartered in Atlanta, Georgia.
Stock Price Trends
Stock price trends estimated using linear regression.
Key facts
- The primary trend is increasing.
- The growth rate of the primary trend is 175.11% per annum.
- DAL price at the close of May 7, 2024 was $52.20 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 551.83% per annum.
- DAL price at the close of May 7, 2024 was inside the secondary price channel.
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 DAL 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: January 16, 2024
End date: May 7, 2024
a = -1.1304
b = 0.0028
s = 0.0188
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0028) – 1
= 175.11%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0188) – 1
= 7.81%
January 16, 2024 calculations
Top border of price channel:
Exp(Y1,180)
= Exp(a + b × X1,180 + 2 × s)
= Exp(a + b × 1,714 + 2 × s)
= Exp(-1.1304 + 0.0028 × 1,714 + 2 × 0.0188)
= Exp(3.6595)
= $38.84
Bottom border of price channel:
Exp(Y1,180)
= Exp(a + b × X1,180 – 2 × s)
= Exp(a + b × 1,714 – 2 × s)
= Exp(-1.1304 + 0.0028 × 1,714 – 2 × 0.0188)
= Exp(3.5842)
= $36.03
May 7, 2024 calculations
Top border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(-1.1304 + 0.0028 × 1,826 + 2 × 0.0188)
= Exp(3.9700)
= $52.98
Bottom border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(-1.1304 + 0.0028 × 1,826 – 2 × 0.0188)
= Exp(3.8948)
= $49.14
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 175.11% per annum.
- DAL price at the close of May 7, 2024 was $52.20 and was inside the primary price channel.
Secondary Trend
Start date: April 15, 2024
End date: May 7, 2024
a = -5.4186
b = 0.0051
s = 0.0111
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0051) – 1
= 551.83%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0111) – 1
= 4.54%
April 15, 2024 calculations
Top border of price channel:
Exp(Y1,242)
= Exp(a + b × X1,242 + 2 × s)
= Exp(a + b × 1,804 + 2 × s)
= Exp(-5.4186 + 0.0051 × 1,804 + 2 × 0.0111)
= Exp(3.8688)
= $47.89
Bottom border of price channel:
Exp(Y1,242)
= Exp(a + b × X1,242 – 2 × s)
= Exp(a + b × 1,804 – 2 × s)
= Exp(-5.4186 + 0.0051 × 1,804 – 2 × 0.0111)
= Exp(3.8244)
= $45.81
May 7, 2024 calculations
Top border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(-5.4186 + 0.0051 × 1,826 + 2 × 0.0111)
= Exp(3.9818)
= $53.61
Bottom border of price channel:
Exp(Y1,258)
= Exp(a + b × X1,258 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(-5.4186 + 0.0051 × 1,826 – 2 × 0.0111)
= Exp(3.9374)
= $51.29
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 551.83% per annum.
- DAL price at the close of May 7, 2024 was inside the secondary price channel.