CIG · Energy Co Of Minas Gerais

Track CIG — free

$1.92 +0.04 (+2.13%) At close · Aug 21

Market Cap

$5.69B

2.86B

Options Chain

Underlying $1.92 · at close Aug 21, 2026 Options Calculator

Positioning

Sep 18, 2026 · 27 days to expiry · 14 contracts · mixed snapshot sessions · Apr 2, 2026–Aug 21, 2026

Put / call OI

—

mixed snapshot sessions

Open interest

—

mixed snapshot sessions

Volume

—

mixed snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 27d Oct 16 55d Dec 18 118d Mar 19 209d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
2	2	—	—	$1.65		$0.03	—	—	2	3
Call · $0.5 In the money Snapshot session Jul 14, 2026 Last $1.65 Breakeven $2.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $0.5 Snapshot session Aug 10, 2026 Last $0.03 Breakeven $0.47 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
2	1	170.4%	0.946	$0.93		$0.05	—	—	1	1
Call · $1 In the money Snapshot session Aug 20, 2026 Last $0.93 Breakeven $1.93 Implied vol 170.4% Delta 0.946 ≈95% ITM Gamma 0.126 Theta -0.002 Vega 0.001 Open interest 2 Model this call Put · $1 Snapshot session May 14, 2026 Last $0.05 Breakeven $0.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
1	1	78.5%	0.89	$0.40		$0.03	—	—	6	8
Call · $1.5 In the money Snapshot session Aug 20, 2026 Last $0.40 Breakeven $1.90 Implied vol 78.5% Delta 0.89 ≈89% ITM Gamma 0.481 Theta -0.001 Vega 0.001 Open interest 1 Model this call Put · $1.5 Snapshot session Aug 10, 2026 Last $0.03 Breakeven $1.47 Implied vol — Delta — Gamma — Theta — Vega — Open interest 8 Model this put
Underlying $1.92
164	100	151.1%	0.533	$0.05		$0.10	-0.644	43%	4	836
Call · $2 Snapshot session Aug 21, 2026 Last $0.05 Breakeven $2.05 Implied vol 151.1% Delta 0.533 ≈53% ITM Gamma 0.505 Theta -0.006 Vega 0.002 Open interest 164 Model this call Put · $2 In the money Snapshot session Aug 21, 2026 Last $0.10 Breakeven $1.90 Implied vol 43% Delta -0.644 ≈64% ITM Gamma 1.67 Theta -0.002 Vega 0.002 Open interest 836 Model this put
1.8k	100	115.9%	0.241	$0.01		$0.60	—	—	1	33
Call · $2.5 Snapshot session Aug 14, 2026 Last $0.01 Breakeven $2.51 Implied vol 115.9% Delta 0.241 ≈24% ITM Gamma 0.516 Theta -0.003 Vega 0.002 Open interest 1.8k Model this call Put · $2.5 In the money Snapshot session Aug 18, 2026 Last $0.60 Breakeven $1.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 33 Model this put
207	26	—	—	$0.02		$2.30	-0.815	274.5%	1	2
Call · $5 Snapshot session Jun 3, 2026 Last $0.02 Breakeven $5.02 Implied vol — Delta — Gamma — Theta — Vega — Open interest 207 Model this call Put · $5 In the money Snapshot session May 1, 2026 Last $2.30 Breakeven $2.70 Implied vol 274.5% Delta -0.815 ≈81% ITM Gamma 0.184 Theta -0.007 Vega 0.001 Open interest 2 Model this put
1	1	—	—	$0.17		$5.00	-0.98	218.5%	4	0
Call · $7.5 Snapshot session Jul 29, 2026 Last $0.17 Breakeven $7.67 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $7.5 In the money Snapshot session Apr 2, 2026 Last $5.00 Breakeven $2.50 Implied vol 218.5% Delta -0.98 ≈98% ITM Gamma 0.051 Theta -0.001 Vega 0 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Apr 2, 2026–Aug 21, 2026. Cross-contract positioning totals are shown only when every returned row has the same known session. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown.

Key facts CIK 1157557 CUSIP 204409601 13F (30d) 184 filings 179 filers Visit website