Summary
IEO
Prices · period metrics · 12M
NAV as of 15/10/2026
02/04/2025 → 02/04/2026
Return 70.51% Volatility 31.01% Sharpe 0.85
Official loaded data — not a live quote.

ISHARES U.S. OIL & GAS EXPLORATION & PRODUCTION ETF

Symbol: IEO

Exchange: BATS

Sector: Energy

Category: Equity Energy

Inception date: 01/05/2006

Latest date: 15/10/2026

Current price: $147.75

Expense ratio: 0.37%

Assets under management
$731.9M
-1.35% daily change

Period performance

Adjusted cumulative ETF performance, normalized to the first available adjusted price in the selected period.

Adjusted return
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Performance metrics

Period total return

2.07%

Ann. 165.98% (Sharpe / Sortino numerator)

Volatility

24.56%

Sharpe ratio

6.610

VaR 95%

-1.89%

CVaR 95%: -2.68%
Max drawdown: -6.43%
Sortino ratio: 8.843
Calmar ratio: 25.80

The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.

Period total return

26.08%

Ann. 230.94% (Sharpe / Sortino numerator)

Volatility

25.67%

Sharpe ratio

8.856

VaR 95%

-1.91%

CVaR 95%: -2.50%
Max drawdown: -6.43%
Sortino ratio: 16.517
Calmar ratio: 35.89

The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.

Period total return

31.46%

Ann. 79.35% (Sharpe / Sortino numerator)

Volatility

24.97%

Sharpe ratio

3.032

VaR 95%

-2.03%

CVaR 95%: -3.06%
Max drawdown: -7.59%
Sortino ratio: 4.955
Calmar ratio: 10.46

The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.

Period total return

70.51%

Ann. 30.07% (Sharpe / Sortino numerator)

Volatility

31.01%

Sharpe ratio

0.852

VaR 95%

-2.58%

CVaR 95%: -4.77%
Max drawdown: -13.09%
Sortino ratio: 0.998
Calmar ratio: 2.30

The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.

Period total return

66.65%

Ann. 8.00% (Sharpe / Sortino numerator)

Volatility

26.92%

Sharpe ratio

0.162

VaR 95%

-2.66%

CVaR 95%: -4.12%
Max drawdown: -31.46%
Sortino ratio: 0.199
Calmar ratio: 0.25

The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.

Period total return

58.04%

Ann. 15.30% (Sharpe / Sortino numerator)

Volatility

25.49%

Sharpe ratio

0.458

VaR 95%

-2.52%

CVaR 95%: -3.75%
Max drawdown: -31.46%
Sortino ratio: 0.592
Calmar ratio: 0.49

The performance chart and period total return use a rolling window to the latest adjusted close. For 1M/3M/6M/... periods, default behavior is Yahoo-style rolling (first session on or after "latest date minus N calendar months" through the latest quote). If the calendar is already in a new month, the last quote is near month-end, and there is no current-month data yet, the window switches to N full calendar months ending in that quote month. Sharpe, Sortino, VaR and related metrics still come from the latest batch row. Sharpe/Sortino use annualized excess return versus the US risk-free rate, so a positive chart can still show a negative ratio if annualized return is below cash.

Daily returns for period 12M

Daily simple returns from the same adjusted closes used by the performance chart: 15/10/2025 - 15/10/2026.

Methodology: adjusted prices + daily simple return
Average daily return

0.227%

Best day

5.634%

10/08/2026
Worst day

-5.258%

06/05/2026
Days with data

251

Recent price history (last 90 days)

Date Open High Low Close Volume
15/10/2026 $149.77 $149.77 $146.96 $147.75 103,500
14/10/2026 $151.20 $151.20 $149.10 $150.15 76,900
13/10/2026 $146.68 $150.33 $146.68 $150.29 292,200
12/10/2026 $145.63 $146.74 $144.88 $145.72 110,500
09/10/2026 $144.52 $146.63 $143.29 $143.71 205,100
08/10/2026 $142.68 $145.46 $142.68 $144.95 194,400
07/10/2026 $141.00 $142.13 $138.95 $140.11 190,000
06/10/2026 $137.67 $140.18 $137.63 $139.68 93,700
05/10/2026 $135.70 $139.89 $135.34 $138.90 92,400
02/10/2026 $134.12 $137.00 $133.86 $136.60 139,300