Stock Price Trends

Abbott Laboratories (ABT)

Abbott Laboratories is an American multinational medical devices and health care company with headquarters in Abbott Park, Illinois, United States. The company was founded by Chicago physician Wallace Calvin Abbott in 1888 to formulate known drugs; today, it sells medical devices, diagnostics, branded generic medicines and nutritional products. It split off its research-based pharmaceuticals business into AbbVie in 2013.

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 33.06% per annum.
  • ABT price at the close of April 17, 2025 was $130.98 and was inside the primary price channel.
  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 40.29% per annum.
  • ABT price at the close of April 17, 2025 was inside the secondary price channel.
  • 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 ABT 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: April 30, 2024
End date: April 17, 2025

a = 3.4470

b = 0.0008

s = 0.0369

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × 0.0008) – 1
= 33.06%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0369) – 1
= 15.92%

April 30, 2024 calculations

Top border of price channel:

Exp(Y1,013)
= Exp(a + b × X1,013 + 2 × s)
= Exp(a + b × 1,470 + 2 × s)
= Exp(3.4470 + 0.0008 × 1,470 + 2 × 0.0369)
= Exp(4.6713)
= $106.84

Bottom border of price channel:

Exp(Y1,013)
= Exp(a + b × X1,013 – 2 × s)
= Exp(a + b × 1,470 – 2 × s)
= Exp(3.4470 + 0.0008 × 1,470 – 2 × 0.0369)
= Exp(4.5236)
= $92.17

April 17, 2025 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,822 + 2 × s)
= Exp(3.4470 + 0.0008 × 1,822 + 2 × 0.0369)
= Exp(4.9468)
= $140.73

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,822 – 2 × s)
= Exp(3.4470 + 0.0008 × 1,822 – 2 × 0.0369)
= Exp(4.7991)
= $121.40

Description

  • The primary trend is increasing.
  • The growth rate of the primary trend is 33.06% per annum.
  • ABT price at the close of April 17, 2025 was $130.98 and was inside the primary price channel.

Secondary Trend

Start date: February 20, 2025
End date: April 17, 2025

a = 7.4039

b = -0.0014

s = 0.0257

Annual growth rate:

Exp(365 × b) – 1
= Exp(365 × -0.0014) – 1
= -40.29%

Price channel spread:

Exp(4 × s) – 1
= Exp(4 × 0.0257) – 1
= 10.83%

February 20, 2025 calculations

Top border of price channel:

Exp(Y1,215)
= Exp(a + b × X1,215 + 2 × s)
= Exp(a + b × 1,766 + 2 × s)
= Exp(7.4039 + -0.0014 × 1,766 + 2 × 0.0257)
= Exp(4.9604)
= $142.66

Bottom border of price channel:

Exp(Y1,215)
= Exp(a + b × X1,215 – 2 × s)
= Exp(a + b × 1,766 – 2 × s)
= Exp(7.4039 + -0.0014 × 1,766 – 2 × 0.0257)
= Exp(4.8577)
= $128.72

April 17, 2025 calculations

Top border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 + 2 × s)
= Exp(a + b × 1,822 + 2 × s)
= Exp(7.4039 + -0.0014 × 1,822 + 2 × 0.0257)
= Exp(4.8813)
= $131.81

Bottom border of price channel:

Exp(Y1,255)
= Exp(a + b × X1,255 – 2 × s)
= Exp(a + b × 1,822 – 2 × s)
= Exp(7.4039 + -0.0014 × 1,822 – 2 × 0.0257)
= Exp(4.7785)
= $118.93

Description

  • The secondary trend is decreasing.
  • The decline rate of the secondary trend is 40.29% per annum.
  • ABT price at the close of April 17, 2025 was inside the secondary price channel.