SLM Corp (SLM)
SLM Corporation originates and provides private education loan services to students and their families to finance the cost of their education in the United States. The company is headquartered in Newark, Delaware.
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 50.40% per annum.
- SLM price at the close of September 12, 2025 was $28.13 and was lower than the bottom border of the primary price channel by $0.63 (2.18%). This indicates a possible reversal in the primary trend direction.
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 19.21% per annum.
- SLM price at the close of September 12, 2025 was lower than the bottom border of the secondary price channel by $1.13 (3.87%).
- 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 SLM 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: February 21, 2023
End date: September 8, 2025
a = 1.4982
b = 0.0011
s = 0.0889
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × 0.0011) – 1
= 50.40%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0889) – 1
= 42.70%
February 21, 2023 calculations
Top border of price channel:
Exp(Y612)
= Exp(a + b × X612 + 2 × s)
= Exp(a + b × 889 + 2 × s)
= Exp(1.4982 + 0.0011 × 889 + 2 × 0.0889)
= Exp(2.6701)
= $14.44
Bottom border of price channel:
Exp(Y612)
= Exp(a + b × X612 – 2 × s)
= Exp(a + b × 889 – 2 × s)
= Exp(1.4982 + 0.0011 × 889 – 2 × 0.0889)
= Exp(2.3145)
= $10.12
September 8, 2025 calculations
Top border of price channel:
Exp(Y1,250)
= Exp(a + b × X1,250 + 2 × s)
= Exp(a + b × 1,819 + 2 × s)
= Exp(1.4982 + 0.0011 × 1,819 + 2 × 0.0889)
= Exp(3.7100)
= $40.85
Bottom border of price channel:
Exp(Y1,250)
= Exp(a + b × X1,250 – 2 × s)
= Exp(a + b × 1,819 – 2 × s)
= Exp(1.4982 + 0.0011 × 1,819 – 2 × 0.0889)
= Exp(3.3544)
= $28.63
Description
- The primary trend is increasing.
- The growth rate of the primary trend is 50.40% per annum.
- SLM price at the close of September 12, 2025 was $28.13 and was lower than the bottom border of the primary price channel by $0.63 (2.18%). This indicates a possible reversal in the primary trend direction.
Secondary Trend
Start date: May 12, 2025
End date: September 11, 2025
a = 4.4974
b = -0.0006
s = 0.0277
Annual growth rate:
Exp(365 × b) – 1
= Exp(365 × -0.0006) – 1
= -19.21%
Price channel spread:
Exp(4 × s) – 1
= Exp(4 × 0.0277) – 1
= 11.73%
May 12, 2025 calculations
Top border of price channel:
Exp(Y1,169)
= Exp(a + b × X1,169 + 2 × s)
= Exp(a + b × 1,700 + 2 × s)
= Exp(4.4974 + -0.0006 × 1,700 + 2 × 0.0277)
= Exp(3.5591)
= $35.13
Bottom border of price channel:
Exp(Y1,169)
= Exp(a + b × X1,169 – 2 × s)
= Exp(a + b × 1,700 – 2 × s)
= Exp(4.4974 + -0.0006 × 1,700 – 2 × 0.0277)
= Exp(3.4482)
= $31.44
September 11, 2025 calculations
Top border of price channel:
Exp(Y1,253)
= Exp(a + b × X1,253 + 2 × s)
= Exp(a + b × 1,822 + 2 × s)
= Exp(4.4974 + -0.0006 × 1,822 + 2 × 0.0277)
= Exp(3.4878)
= $32.71
Bottom border of price channel:
Exp(Y1,253)
= Exp(a + b × X1,253 – 2 × s)
= Exp(a + b × 1,822 – 2 × s)
= Exp(4.4974 + -0.0006 × 1,822 – 2 × 0.0277)
= Exp(3.3769)
= $29.28
Description
- The secondary trend is decreasing.
- The decline rate of the secondary trend is 19.21% per annum.
- SLM price at the close of September 12, 2025 was lower than the bottom border of the secondary price channel by $1.13 (3.87%).