All charts and data below are CPI-U inflation-adjusted and with dividends reinvested. (Why?)

Total Real Returns

USOI: Total Real Return Chart (Dividends Reinvested, Inflation Adjusted)

USOI real return snapshot: after CPI-U inflation, USOI returned +31.75% over the past year and +35.22% YTD, with dividends reinvested. Since Apr. 26, 2017, USOI is down −19.32% in real purchasing-power return, or −2.28%/yr, and is currently −45.43% below its real total-return high on Oct. 2, 2018.

Data ending Fri Aug. 21, 2026

Growth of $10,000

Wed 2017-04-26💬 to Fri 2026-08-21 Overall
Return 		Exponential
Trendline
USOI × 		−19.32%
−2.28%/yr 		−6.79%/yr
R2=0.261
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Growth of $10,000 Summary

Wed 2017-04-26💬 to Fri 2026-08-21 Start
Value 		End
Value
USOI × 		$10,000.00
2017-04-26 		$8,067.97
2026-08-21

This Year’s Performance

through 2026-08-21

  YTD YoY
USOI × 		+35.22% +31.75%

Drawdowns

  Current
Drawdown 		Worst
Drawdown
USOI × 		−45.43%
on 2026-08-21
from 2018-10-02 peak 		−77.76%
on 2020-05-13
from 2018-10-02 peak

Rolling Returns

Period ending Fri 2026-08-21 1 yr 2 yr 3 yr 5 yr 10 yr
USOI × 		+31.75% +25.29%
+11.93%/yr 		+27.73%
+8.50%/yr 		+74.36%
+11.76%/yr 		—

Annual Returns

Year USOI
2026 (YTD) +35.22%
2025 −11.05%
2024 +11.69%
2023 +2.95%
2022 +7.63%
2021 +28.25%
2020 −66.07%
2019 +30.60%
2018 −22.69%
2017 +23.37%