1. Colombia Stocks

  2. •

    Utilities

  3. •

    Regulated Electric
Interconexión Eléctrica S.A. E.S.P.

Interconexión Eléctrica S.A. E.S.P.

IESFY
Interconexión Eléctrica S.A. E.S.P.US flagOther OTC
234.00
USD
+15.00
- -
10.37BMarket Cap
2013 Y
2014 Y
2015 Y
2016 Y
2017 Y
2018 Y
2019 Y
2020 Y
2021 Y
2022 Y
2023 Y
2024 Y
2025 Y
TTM
Revenue per Share
81,280.96
95,187.73
118,957.17
268,413.45
156,955.94
161,911.06
183,695.28
205,629.43
250,906.38
301,441.53
319,000.68
337,073.42
359,265.2
- -
Basic EPS, GAAP
9,773.78
11,504.09
15,833.75
48,223.16
32,453.84
34,404.9
36,985.75
46,475.4
37,590.71
49,711.68
55,656.97
63,374.49
54,625.94
- -
Free Cash Flow per Basic Share
41,140.14
35,729.81
23,549.38
-21,286.83
-51,265.11
-49,954.59
-50,320.79
-67,319.46
46,377
49,870.05
99,387.69
44,833.81
19,093.25
- -
Dividend per Share
4,700.01
5,350
6,700.01
9,534.77
19,366.69
42,060.11
26,402.01
28,277.08
68,666.76
22,542.56
56,401.78
46,453.51
52,697.13
- -
Book Value per Share
85,065.88
87,188.46
89,740.51
122,022.21
106,145.16
107,850.06
110,323.18
119,705.11
110,735.55
123,014.19
129,217.62
137,120.93
128,522.81
- -
Tangible Book Value per Share
133,232.26
147,139.3
134,116.52
242,209.81
270,814.92
273,421
317,032.82
-157,859.11
-260,345.09
-333,529.25
-293,530.12
-327,200.87
-355,227.12
- -
Basic Weighted Avg Shares
44
44
44
44
44
44
44
44
44
44
44
44
44
- -
Sales/Revenue/Turnover
3,601,325
4,217,494
5,270,649
11,892,626
6,954,265
7,173,812
8,139,008
9,110,847
11,116,938
13,356,005
14,134,000
14,934,751
15,918,005
15,877,000
Operating Margin (%)
43.07
43.89
43.71
69.6
58.2
55.96
55.72
51.1
54.59
51.41
50.01
53.8
43.19
40.01
Depreciation Expense
156,827
264,405
271,735
260,973
39,887
60,008
91,174
90,530
893,361
1,006,263
1,268,000
1,027,230
1,080,192
1,083,000
Net Income, GAAP
433,048
509,713
701,548
2,136,629
1,437,936
1,524,382
1,638,732
2,059,191
1,665,536
2,202,581
2,466,000
2,807,941
2,420,318
2,284,000
Effective Tax Rate (%)
13.85
33.24
29.78
32.83
28.11
18.33
21.89
22.2
25.66
21.48
20.79
21.94
22.13
20.2
Profit Margin (%)
12.02
12.09
13.31
17.97
20.68
21.25
20.13
22.6
14.98
16.49
17.45
18.8
15.2
14.39
Working Capital
1,826,897
1,820,156
1,024,043
2,008,429
3,310,454
4,100,435
5,774,694
6,305,744
5,700,054
8,361,914
7,100,159
7,920,749
7,128,879
4,560,000
LT Debt
8,145,244
8,506,150
9,382,032
6,731,978
8,574,905
9,375,556
11,014,781
13,724,609
22,186,463
27,899,826
23,660,661
31,813,939
32,035,231
- -
Total Equity
9,072,107
10,446,934
11,393,053
16,911,478
18,423,522
18,941,827
21,103,214
20,146,193
22,132,995
29,550,371
26,366,393
28,268,006
28,306,998
27,879,000
Return on Invested Capital (%)
6.99
6.3
7.48
23.11
10.88
11.54
11.46
10.64
11.19
10.3
10.1
10.92
8.53
17.85
Return on Capital (%)
5.81
4.24
5.39
-0.13
5.82
6.17
6.22
5.07
4.7
5.82
5.43
5.18
5.56
18.61
Return on Common Equity (%)
21.23
13.36
17.9
45.54
28.45
32.15
33.9
40.41
32.63
42.53
44.13
47.59
41.13
53.7

Capital Structure

FRC

•

in mil. unless spec.
Sep'25
Dec'25
Mar'26
ST Debt
- -
1,716,599
- -
LT Borrowings
- -
32,035,231
- -
LT Finance Leases
- -
- -
- -
Preferred Equity and Hybrid Capital
- -
- -
- -
Shares Outstanding
1,108
1,108
1,108
Market Capitalization
25,298,494
26,147,886
- -

Working Capital

FRC

•

in mil. unless spec.
Sep'25
Dec'25
Mar'26
Total Current Assets
12,788,000
11,720,344
11,284,000
Cash, Cash Equivalents & STI
5,903,000
3,005,210
4,110,000
Accounts Receivable, Net
5,749,000
5,855,662
6,241,000
Inventories
166,000
166,005
165,000
Total Current Liabilities
4,705,000
4,591,465
6,724,000
Payables & Accruals
- -
- -
- -
ST Debt
- -
1,716,599
- -
Deferred Revenue
- -
- -
- -

Growth Rates

FRC

•

in mil. unless spec.

(avg. rate of change)

10 years
5 years
1 year
Total Equity
10.7%
7.99%
0.14%
Free Cash Flow
-19.2%
-34.87%
-57.41%
Net Income, GAAP
23.62%
5.03%
-13.8%
Sales/Revenue/Turnover
17.29%
12.05%
6.58%
Total Cash Common Dividend
45.42%
44.33%
13.44%

Quarterly Revenue

FRC

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
3,668,000
3,446,000
4,396,000
4,237,000
14,934,751
2025
4,012,000
3,343,000
4,158,000
4,516,000
15,918,005
2026
3,860,000
- -
- -
- -
- -

Quarterly Earnings Per Share

FRC

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
14,309.21
- -
20,109.64
12,977.6
63,374.49
2025
15,685.97
- -
- -
- -
54,625.94
2026
- -
- -
- -
- -
- -

Quarterly Dividends Per Share

FRC

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2024
1,557.31
- -
9,524.43
9,303.72
46,453.51
2025
15,731.11
- -
- -
- -
52,697.13
2026
- -
- -
- -
- -
- -

Company Description

APIChatGPT
CEO
Gabriel Jaime Melguizo Posada
Full Time Employees
4,700
Sector
Utilities
Industry
Regulated Electric
Address
Calle 12 sur N° 18 -168 Medellín ANT Colombia
IPO Date
Jan 30, 2008
Website
isa.co
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Business
Interconexión Eléctrica S.A. E.S.P. (ISA) operates as a Colombian state-owned holding company specializing in energy transmission, road concessions, and telecommunications and information and communication technology (ICT) services across Latin America. The company develops, constructs, operates, and maintains electricity transmission networks, including substations and high-voltage electricity lines, with an operational portfolio exceeding 50,000 kilometers of transmission lines and 92,600 MVA capacity. It also manages road infrastructure concessions through its subsidiary ISA Intervial, operating approximately 700 kilometers of highways primarily in Chile and Colombia, and develops extensive terrestrial and submarine optical fiber networks through its ICT subsidiary InterNexa. ISA provides chemical analysis and maintenance services related to its power transmission operations. The company focuses on markets in Colombia, Chile, Panama, Peru, and Brazil, leveraging strategic regional interconnections and digital infrastructure spanning from Florida to Patagonia. Founded in 1967 and headquartered in Medellín, Colombia, ISA recently reaffirmed its financial stability with Fitch Ratings affirming its long- and short-term national ratings. In recent corporate developments, ISA has experienced key leadership changes, including an update in its Corporate Risk Directorate, and continues to undertake a robust investment plan targeting COP 6.2 to 6.8 trillion for 2024-2026 focused on projects in Brazil, Colombia, and Chile. Strategically, ISA emphasizes innovation in energy systems integration, operational efficiency, and portfolio optimization to maintain its leading infrastructure role in Latin America. The company remains majority-owned by Ecopetrol following a 2021 acquisition of controlling shares previously held by the Colombian Ministry of Finance and Public Credit, reinforcing its position as a diversified regional energy conglomerate. ISA’s latest operational advancements include continued expansions in transmission infrastructure concessions in Peru and enhancement of its digital telecommunications ecosystem to support emerging smart grid and IP-based services across its geographic footprint. This description integrates ISA’s core products and services, geographic scope, foundational background, and details key recent operational and strategic changes up to late 2025.

Company News

APIChatGPT

  • seekingalpha.com

    Interconexión Eléctrica S.A. E.S.P. (IESFY) Q4 2025 Earnings Call Transcript

  • seekingalpha.com

    Interconexión Eléctrica S.A. E.S.P. (IESFY) Q3 2025 Earnings Call Transcript