eBay Inc (EBAY)
eBay Inc. is an American multinational e-commerce corporation based in San Jose, California, that facilitates consumer-to-consumer and business-to-consumer sales through its website.
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 46.96% per annum.
- EBAY price at the close of July 1, 2025 was $76.10 and was inside the primary price channel.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 26.72% per annum.
- EBAY price at the close of July 1, 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 EBAY 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: September 22, 2023
End date: July 1, 2025
a = 2.4185
b = 0.0011
s = 0.0545
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0011) – 1
= 46.96%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0545) – 1
= 24.37%
September 22, 2023 calculations
Top border of price channel:
Exp(Y811)
= Exp(a + b × X811 + 2 × s)
= Exp(a + b × 1,177 + 2 × s)
= Exp(2.4185 + 0.0011 × 1,177 + 2 × 0.0545)
= Exp(3.7691)
= $43.34
Bottom border of price channel:
Exp(Y811)
= Exp(a + b × X811 – 2 × s)
= Exp(a + b × 1,177 – 2 × s)
= Exp(2.4185 + 0.0011 × 1,177 – 2 × 0.0545)
= Exp(3.5510)
= $34.85
July 1, 2025 calculations
Top border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(2.4185 + 0.0011 × 1,825 + 2 × 0.0545)
= Exp(4.4526)
= $85.85
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(2.4185 + 0.0011 × 1,825 – 2 × 0.0545)
= Exp(4.2345)
= $69.03
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 46.96% per annum.
- EBAY price at the close of July 1, 2025 was $76.10 and was inside the primary price channel.
Secondary Trend
Start date: August 21, 2024
End date: July 1, 2025
a = 3.1019
b = 0.0006
s = 0.0432
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0006) – 1
= 26.72%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0432) – 1
= 18.88%
August 21, 2024 calculations
Top border of price channel:
Exp(Y1,040)
= Exp(a + b × X1,040 + 2 × s)
= Exp(a + b × 1,511 + 2 × s)
= Exp(3.1019 + 0.0006 × 1,511 + 2 × 0.0432)
= Exp(4.1687)
= $64.63
Bottom border of price channel:
Exp(Y1,040)
= Exp(a + b × X1,040 – 2 × s)
= Exp(a + b × 1,511 – 2 × s)
= Exp(3.1019 + 0.0006 × 1,511 – 2 × 0.0432)
= Exp(3.9957)
= $54.36
July 1, 2025 calculations
Top border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 + 2 × s)
= Exp(a + b × 1,825 + 2 × s)
= Exp(3.1019 + 0.0006 × 1,825 + 2 × 0.0432)
= Exp(4.3724)
= $79.23
Bottom border of price channel:
Exp(Y1,254)
= Exp(a + b × X1,254 – 2 × s)
= Exp(a + b × 1,825 – 2 × s)
= Exp(3.1019 + 0.0006 × 1,825 – 2 × 0.0432)
= Exp(4.1994)
= $66.65
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 26.72% per annum.
- EBAY price at the close of July 1, 2025 was inside the secondary price channel.