Kosmos Energy Ltd (KOS) returns
Kosmos Energy returns over 10 years
$1,000 invested in Kosmos Energy ten years ago was worth $548.22 at the close on October 30, 2026, with dividends reinvested: an average return of -5.8% a year. The same $1,000 in the S&P 500 (SPY) became $4,166.
Total return by period
| Period | Total return | A year, on average | $1,000 became | S&P 500 (SPY) |
|---|---|---|---|---|
| 1 month | +12.2% | — | $1,122 | -0.9% |
| 3 months | +11.3% | — | $1,113 | +2.1% |
| Year to date | +214.1% | — | $3,141 | +11.7% |
| 1 year | +83.9% | — | $1,839 | +12.4% |
| 3 years | -60.9% | -26.8% | $391.48 | +88.5% |
| 5 years | -20.8% | -4.6% | $791.67 | +76.0% |
| 10 years | -45.2% | -5.8% | $548.22 | +316.6% |
Kosmos Energy return by calendar year
| Year | KOS | S&P 500 (SPY) | Difference |
|---|---|---|---|
| 2026 to date | +214.1% | +11.7% | +202.4% |
| 2025 | -73.5% | +17.7% | -91.2% |
| 2024 | -49.0% | +24.9% | -73.9% |
| 2023 | +5.5% | +26.2% | -20.7% |
| 2022 | +83.8% | -18.2% | +102.0% |
| 2021 | +47.2% | +28.7% | +18.5% |
| 2020 | -58.1% | +18.4% | -76.4% |
| 2019 | +44.3% | +31.2% | +13.1% |
| 2018 | -40.6% | -4.6% | -36.0% |
| 2017 | -2.3% | +21.7% | -24.0% |
| 2016 | +34.8% | +12.0% | +22.8% |
Past returns do not predict future returns. Returns are computed from our daily closes, adjusted for splits and with dividends reinvested on their ex-dates; taxes and trading costs are left out.
See also: KOS financials · KOS valuation
No forecast, no recommendation. This page describes Kosmos Energy Ltd from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.