$1,000 in The Cigna Group in 2018 → $1,511 today
If you'd invested $1,000 in The Cigna Group (CI) on January 1, 2018 — at the December 2017 month-end close of $184 — and held to the latest close (2026-08-), you'd have $1,511. That's a +51.1% total return — trailing the S&P 500, where the same $1,000 became $2,883.
Nearby years: 2014 · 2015 · 2016 · 2017 · 2019 · 2020 · 2021 · 2022 all years →
FAQ
How much is $1,000 invested in CI in 2018 worth today?
$1,000 invested in The Cigna Group (CI) at the month-end close of 2017-12- would be worth $1,511 at the latest month-end close (2026-08-), a total return of +51.1% with dividends reinvested.
Did $1,000 in CI in 2018 beat the market?
Over the same span, $1,000 in the S&P 500 index would be worth $2,883 — so The Cigna Group (CI) trailed the index by +47.6%.
What does "month-end close" mean for this calculation?
The scenario invests at the December 2017 month-end close (the price entering 2018) and values the position at the most recent month-end close (2026-08-). Intra-month extremes are shown on the CI calculator page.
Is the 2018–2026 return in CI typical?
No single year is typical. CI's best calendar-year return since 1982 was about +109.9%, and its worst was -68.6%.
Methodology
The Cigna Group (CI) total-return data from January 2018 through the latest month-end close (2026-08-).
The entry price is the 2017 December month-end close and the exit is the latest available month-end close, both from adjusted (split and dividend) Yahoo Finance historical data.
Month-end resolution, no taxes or fees, and history never guarantees the future. For exact-date precision (including buying at a panic low), use the CI calculator page.
Compute your own CI scenario
Data: Yahoo Finance. As of 2026-08-. Not financial advice.