Curbline Properties Corp. (CURB)
None
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 26.03% per annum.
- CURB price at the close of December 10, 2025 was $22.85 and was lower than the bottom border of the primary price channel by $0.11 (0.46%). This indicates a possible reversal in the primary trend direction.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 67.98% per annum.
- CURB price at the close of December 10, 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 CURB 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: July 30, 2025
End date: December 5, 2025
a = 2.8931
b = 0.0006
s = 0.0192
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0006) – 1
= 26.03%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0192) – 1
= 7.98%
July 30, 2025 calculations
Top border of price channel:
Exp(Y209)
= Exp(a + b × X209 + 2 × s)
= Exp(a + b × 307 + 2 × s)
= Exp(2.8931 + 0.0006 × 307 + 2 × 0.0192)
= Exp(3.1260)
= $22.78
Bottom border of price channel:
Exp(Y209)
= Exp(a + b × X209 – 2 × s)
= Exp(a + b × 307 – 2 × s)
= Exp(2.8931 + 0.0006 × 307 – 2 × 0.0192)
= Exp(3.0493)
= $21.10
December 5, 2025 calculations
Top border of price channel:
Exp(Y299)
= Exp(a + b × X299 + 2 × s)
= Exp(a + b × 435 + 2 × s)
= Exp(2.8931 + 0.0006 × 435 + 2 × 0.0192)
= Exp(3.2072)
= $24.71
Bottom border of price channel:
Exp(Y299)
= Exp(a + b × X299 – 2 × s)
= Exp(a + b × 435 – 2 × s)
= Exp(2.8931 + 0.0006 × 435 – 2 × 0.0192)
= Exp(3.1304)
= $22.88
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 26.03% per annum.
- CURB price at the close of December 10, 2025 was $22.85 and was lower than the bottom border of the primary price channel by $0.11 (0.46%). This indicates a possible reversal in the primary trend direction.
Secondary Trend
Start date: November 25, 2025
End date: December 10, 2025
a = 4.5075
b = -0.0031
s = 0.0064
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0031) – 1
= -67.98%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0064) – 1
= 2.59%
November 25, 2025 calculations
Top border of price channel:
Exp(Y292)
= Exp(a + b × X292 + 2 × s)
= Exp(a + b × 425 + 2 × s)
= Exp(4.5075 + -0.0031 × 425 + 2 × 0.0064)
= Exp(3.1945)
= $24.40
Bottom border of price channel:
Exp(Y292)
= Exp(a + b × X292 – 2 × s)
= Exp(a + b × 425 – 2 × s)
= Exp(4.5075 + -0.0031 × 425 – 2 × 0.0064)
= Exp(3.1689)
= $23.78
December 10, 2025 calculations
Top border of price channel:
Exp(Y302)
= Exp(a + b × X302 + 2 × s)
= Exp(a + b × 440 + 2 × s)
= Exp(4.5075 + -0.0031 × 440 + 2 × 0.0064)
= Exp(3.1477)
= $23.28
Bottom border of price channel:
Exp(Y302)
= Exp(a + b × X302 – 2 × s)
= Exp(a + b × 440 – 2 × s)
= Exp(4.5075 + -0.0031 × 440 – 2 × 0.0064)
= Exp(3.1221)
= $22.69
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 67.98% per annum.
- CURB price at the close of December 10, 2025 was inside the secondary price channel.