Dropbox Inc (DBX)
Dropbox, Inc. provides a worldwide collaboration platform. The company is headquartered in San Francisco, California.
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 84.13% per annum.
- DBX price at the close of January 27, 2025 was $32.00 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 468.84% per annum.
- DBX price at the close of January 27, 2025 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 DBX 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: June 4, 2024
End date: January 27, 2025
a = 0.3833
b = 0.0017
s = 0.0293
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0017) – 1
= 84.13%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0293) – 1
= 12.44%
June 4, 2024 calculations
Top border of price channel:
Exp(Y1,095)
= Exp(a + b × X1,095 + 2 × s)
= Exp(a + b × 1,589 + 2 × s)
= Exp(0.3833 + 0.0017 × 1,589 + 2 × 0.0293)
= Exp(3.0997)
= $22.19
Bottom border of price channel:
Exp(Y1,095)
= Exp(a + b × X1,095 – 2 × s)
= Exp(a + b × 1,589 – 2 × s)
= Exp(0.3833 + 0.0017 × 1,589 – 2 × 0.0293)
= Exp(2.9824)
= $19.74
January 27, 2025 calculations
Top border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(0.3833 + 0.0017 × 1,826 + 2 × 0.0293)
= Exp(3.4961)
= $32.99
Bottom border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(0.3833 + 0.0017 × 1,826 – 2 × 0.0293)
= Exp(3.3788)
= $29.34
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 84.13% per annum.
- DBX price at the close of January 27, 2025 was $32.00 and was inside the primary price channel.
Secondary Trend
Start date: January 10, 2025
End date: January 27, 2025
a = -5.2327
b = 0.0048
s = 0.0051
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0048) – 1
= 468.84%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0051) – 1
= 2.08%
January 10, 2025 calculations
Top border of price channel:
Exp(Y1,246)
= Exp(a + b × X1,246 + 2 × s)
= Exp(a + b × 1,809 + 2 × s)
= Exp(-5.2327 + 0.0048 × 1,809 + 2 × 0.0051)
= Exp(3.3936)
= $29.77
Bottom border of price channel:
Exp(Y1,246)
= Exp(a + b × X1,246 – 2 × s)
= Exp(a + b × 1,809 – 2 × s)
= Exp(-5.2327 + 0.0048 × 1,809 – 2 × 0.0051)
= Exp(3.3730)
= $29.17
January 27, 2025 calculations
Top border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 + 2 × s)
= Exp(a + b × 1,826 + 2 × s)
= Exp(-5.2327 + 0.0048 × 1,826 + 2 × 0.0051)
= Exp(3.4745)
= $32.28
Bottom border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 – 2 × s)
= Exp(a + b × 1,826 – 2 × s)
= Exp(-5.2327 + 0.0048 × 1,826 – 2 × 0.0051)
= Exp(3.4540)
= $31.63
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 468.84% per annum.
- DBX price at the close of January 27, 2025 was inside the secondary price channel.