Tetra Tech Inc (TTEK)
Tetra Tech, Inc. provides consulting and engineering services worldwide. The company is headquartered in Pasadena, California.
Stock Price Trends
Stock price trends estimated using linear regression.
Key facts
- The primary trend is decreasing.
- The decline rate of the primary trend is 66.77% per annum.
- TTEK price at the close of April 25, 2025 was $31.21 and was higher than the top border of the primary price channel by $0.31 (1.02%). This indicates a possible reversal in the primary trend direction.
- The secondary trend is increasing.
- The growth rate of the secondary trend is 20.39% per annum.
- TTEK price at the close of April 25, 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 TTEK 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 24, 2024
End date: April 21, 2025
a = 8.8101
b = -0.0030
s = 0.0633
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0030) – 1
= -66.77%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0633) – 1
= 28.82%
September 24, 2024 calculations
Top border of price channel:
Exp(Y1,110)
= Exp(a + b × X1,110 + 2 × s)
= Exp(a + b × 1,611 + 2 × s)
= Exp(8.8101 + -0.0030 × 1,611 + 2 × 0.0633)
= Exp(4.0736)
= $58.77
Bottom border of price channel:
Exp(Y1,110)
= Exp(a + b × X1,110 – 2 × s)
= Exp(a + b × 1,611 – 2 × s)
= Exp(8.8101 + -0.0030 × 1,611 – 2 × 0.0633)
= Exp(3.8203)
= $45.62
April 21, 2025 calculations
Top border of price channel:
Exp(Y1,252)
= Exp(a + b × X1,252 + 2 × s)
= Exp(a + b × 1,820 + 2 × s)
= Exp(8.8101 + -0.0030 × 1,820 + 2 × 0.0633)
= Exp(3.4427)
= $31.27
Bottom border of price channel:
Exp(Y1,252)
= Exp(a + b × X1,252 – 2 × s)
= Exp(a + b × 1,820 – 2 × s)
= Exp(8.8101 + -0.0030 × 1,820 – 2 × 0.0633)
= Exp(3.1894)
= $24.27
Description
- The primary trend is decreasing.
- The decline rate of the primary trend is 66.77% per annum.
- TTEK price at the close of April 25, 2025 was $31.21 and was higher than the top border of the primary price channel by $0.31 (1.02%). This indicates a possible reversal in the primary trend direction.
Secondary Trend
Start date: February 20, 2025
End date: April 25, 2025
a = 2.4772
b = 0.0005
s = 0.0238
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0005) – 1
= 20.39%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0238) – 1
= 9.97%
February 20, 2025 calculations
Top border of price channel:
Exp(Y1,211)
= Exp(a + b × X1,211 + 2 × s)
= Exp(a + b × 1,760 + 2 × s)
= Exp(2.4772 + 0.0005 × 1,760 + 2 × 0.0238)
= Exp(3.4197)
= $30.56
Bottom border of price channel:
Exp(Y1,211)
= Exp(a + b × X1,211 – 2 × s)
= Exp(a + b × 1,760 – 2 × s)
= Exp(2.4772 + 0.0005 × 1,760 – 2 × 0.0238)
= Exp(3.3247)
= $27.79
April 25, 2025 calculations
Top border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 + 2 × s)
= Exp(a + b × 1,824 + 2 × s)
= Exp(2.4772 + 0.0005 × 1,824 + 2 × 0.0238)
= Exp(3.4522)
= $31.57
Bottom border of price channel:
Exp(Y1,256)
= Exp(a + b × X1,256 – 2 × s)
= Exp(a + b × 1,824 – 2 × s)
= Exp(2.4772 + 0.0005 × 1,824 – 2 × 0.0238)
= Exp(3.3572)
= $28.71
Description
- The secondary trend is increasing.
- The growth rate of the secondary trend is 20.39% per annum.
- TTEK price at the close of April 25, 2025 was inside the secondary price channel.