Funds / Individual fund

S Fund

$112.72 a share on Oct 27, 2026, +0.92% on the day.

Returns to Oct 27, 2026

Year to date: 12.3%; from Dec 31, 2025
1 year: 9.5%; from Oct 27, 2025
3 years: 22.2%; a year, from Oct 27, 2023
5 years: 5.6%; a year, from Oct 27, 2021
10 years: 11.7%; a year, from Oct 27, 2016
Since start: 10.9%; a year, from Jun 2, 2003

Share price, month endslog scale

Spans longer than a year show the yearly rate. Share prices include the fund's earnings and expenses, so a price change is the return.

What the S Fund holds

An index fund designed to track the Dow Jones U.S. Completion Total Stock Market Index: U.S. stocks outside the C Fund's index, each in proportion to its market value.

Legal name: Small Capitalization Stock Index Investment Fund
First priced: Jun 2, 2003 in the official daily price file; the fund itself is older

Since Jun 2, 2003

$10,000 on Jun 2, 2003 would be about

$112,000

by Oct 27, 2026. In the C Fund over the same span: about $124,000.

Growth per year: 10.9%; C Fund 11.4%
Best year: 38.3%; 2013
Worst year: −38.3%; 2008
Biggest drop: 57%; peak to trough; C Fund 55%

S FundC Fund onlylog scale

Year by year

Year	S Fund	C Fund
2003*	24.2%	16.2%
2004	18.0%	10.8%
2005	10.5%	5.0%
2006	15.3%	15.8%
2007	5.5%	5.5%
2008	−38.3%	−37.0%
2009	34.8%	26.7%
2010	29.1%	15.1%
2011	−3.4%	2.1%
2012	18.6%	16.1%
2013	38.3%	32.4%
2014	7.8%	13.8%
2015	−2.9%	1.5%
2016	16.3%	12.0%
2017	18.2%	21.8%
2018	−9.3%	−4.4%
2019	28.0%	31.5%
2020	31.9%	18.3%
2021	12.5%	28.7%
2022	−26.3%	−18.1%
2023	25.3%	26.2%
2024	16.9%	25.0%
2025	11.4%	17.8%
2026*	12.3%	13.8%

* part of a year. Returns are from official daily share prices; each move happens at the close of its day.

Month by month

Monthly returns of the S Fund by year and month
Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2003						1.7%*	4.6%	4.1%	−1.3%	7.7%	3.5%	2.0%	24.2%*
2004	3.5%	1.8%	0.4%	−3.9%	1.5%	2.7%	−5.5%	0.0%	3.9%	1.8%	7.0%	4.2%	18.0%
2005	−3.4%	2.0%	−1.9%	−3.7%	6.0%	3.4%	5.6%	−1.0%	0.8%	−2.3%	4.7%	0.4%	10.5%
2006	6.7%	−1.0%	3.8%	0.3%	−4.4%	0.5%	−2.8%	2.2%	0.9%	5.0%	3.5%	0.1%	15.3%
2007	3.1%	−0.3%	1.1%	2.5%	4.4%	−1.5%	−4.6%	1.4%	3.0%	2.8%	−5.7%	−0.4%	5.5%
2008	−6.3%	−2.0%	−1.4%	5.3%	4.9%	−7.6%	−0.8%	2.2%	−10.3%	−21.0%	−11.1%	4.7%	−38.3%
2009	−8.2%	−10.2%	8.6%	15.0%	4.0%	0.7%	8.7%	3.9%	5.9%	−5.5%	3.9%	6.6%	34.8%
2010	−2.4%	4.9%	7.4%	4.8%	−7.5%	−6.9%	7.0%	−5.6%	11.5%	4.5%	3.0%	7.4%	29.1%
2011	1.2%	4.5%	2.1%	2.9%	−1.3%	−2.4%	−3.1%	−8.1%	−10.7%	14.1%	−0.5%	0.0%	−3.4%
2012	7.6%	4.0%	2.3%	−0.7%	−6.9%	3.2%	−0.6%	3.6%	2.5%	−1.3%	1.5%	2.7%	18.6%
2013	7.0%	1.0%	4.7%	0.6%	2.7%	−1.0%	6.9%	−2.8%	5.9%	2.9%	2.5%	2.9%	38.3%
2014	−1.9%	5.4%	−0.7%	−2.5%	1.5%	4.4%	−4.4%	5.0%	−5.1%	4.1%	1.3%	1.0%	7.8%
2015	−1.8%	6.1%	1.2%	−1.5%	1.8%	−0.7%	−0.1%	−5.8%	−4.8%	5.6%	1.7%	−3.9%	−2.9%
2016	−8.7%	0.5%	8.2%	1.7%	1.8%	−0.1%	5.4%	0.8%	0.9%	−3.9%	8.0%	1.8%	16.3%
2017	2.2%	2.4%	−0.1%	1.2%	−0.8%	2.3%	1.1%	−0.4%	4.3%	1.4%	2.9%	0.5%	18.2%
2018	3.3%	−3.8%	0.7%	0.3%	4.9%	0.9%	1.6%	4.6%	−1.8%	−10.1%	1.9%	−10.7%	−9.3%
2019	11.6%	5.0%	−1.0%	3.7%	−7.0%	6.8%	1.6%	−4.2%	1.1%	1.9%	4.5%	2.2%	28.0%
2020	−0.6%	−8.0%	−21.4%	15.8%	8.8%	4.0%	5.7%	7.2%	−3.0%	0.5%	18.3%	7.2%	31.9%
2021	2.9%	5.2%	−0.4%	4.2%	−0.7%	3.5%	−1.2%	2.0%	−4.0%	5.4%	−5.0%	0.6%	12.5%
2022	−10.1%	0.0%	0.9%	−10.6%	−3.5%	−8.0%	10.3%	−2.1%	−9.9%	8.6%	3.6%	−6.6%	−26.3%
2023	10.8%	−1.6%	−2.9%	−2.2%	0.4%	8.3%	5.9%	−4.1%	−4.9%	−6.3%	11.2%	10.4%	25.3%
2024	−2.4%	6.0%	3.3%	−6.5%	3.4%	−0.1%	6.2%	0.3%	1.5%	0.6%	12.0%	−7.0%	16.9%
2025	5.0%	−5.8%	−7.9%	−0.8%	7.2%	5.4%	2.5%	4.1%	2.0%	1.2%	−0.4%	−0.5%	11.4%
2026	2.4%	1.1%	−4.6%	10.0%	4.5%	4.3%	−4.1%	2.3%	−3.9%	0.6%*			12.3%*

Blue, the month was up; red, it was down; the deeper the colour, the bigger the move. * part of a month or year.

Rolling returns, a year at a time
Over	Spans	Best	Worst	Average	Lost money
1 year	22	38.3%to 2013	−38.3%to 2008	11.7%	5 of 22
3 years	20	23.8%to 2021	−9.1%to 2008	9.8%	2 of 20
5 years	18	22.5%to 2013	−0.4%to 2008	9.6%	1 of 18
10 years	13	15.1%to 2021	8.0%to 2015	10.7%	0 of 13

Every span

Annualised return of each window ending at each year end
Ending	1 year	3 years	5 years	10 years
2025	11.4%	17.7%	6.2%	11.0%
2024	16.9%	2.6%	9.9%	9.5%
2023	25.3%	1.3%	11.9%	8.6%
2022	−26.3%	3.0%	4.9%	9.7%
2021	12.5%	23.8%	15.3%	15.1%
2020	31.9%	15.3%	16.1%	13.3%
2019	28.0%	11.1%	9.2%	13.1%
2018	−9.3%	7.7%	5.5%	13.7%
2017	18.2%	10.1%	14.8%	9.4%
2016	16.3%	6.8%	14.8%	8.1%
2015	−2.9%	13.1%	10.6%	8.0%
2014	7.8%	20.9%	17.1%	9.4%
2013	38.3%	16.6%	22.5%	10.4%
2012	18.6%	13.9%	4.2%
2011	−3.4%	18.9%	1.8%
2010	29.1%	2.4%	5.5%
2009	34.8%	−4.3%	2.2%
2008	−38.3%	−9.1%	−0.4%
2007	5.5%	10.3%
2006	15.3%	14.6%
2005	10.5%
2004	18.0%

Each figure is the yearly rate over a span ending on the last priced day of that year. A blank cell means the span starts before the fund did.

The 5 biggest drops
High	Low	Fall	Fell over	Back after
Oct 10, 2007	Mar 9, 2009	−57.4%	1.4 yrs	3.2 yrs
Feb 20, 2020	Mar 18, 2020	−41.7%	27 days	188 days
Nov 8, 2021	Jun 16, 2022	−36.2%	220 days	3.0 yrs
Apr 29, 2011	Oct 3, 2011	−27.2%	157 days	325 days
Dec 4, 2024	Apr 8, 2025	−26.8%	125 days	266 days

Past performance does not predict future returns. This is not investment advice.

Official TSP share prices through Oct 27, 2026.

Open the S Fund in the backtester to test a plan that moves in and out of it, or see every fund.