Fund	Tracks / index	Proxy ETF	Proxy last	Day change
F · F Fund Fixed Income Index Investment Fund	Bloomberg U.S. Aggregate Bond Index	AGG iShares Core U.S. Aggregate Bond ETF Source: yfinance	95.81	+0.01%
C · C Fund Common Stock Index Investment Fund	S&P 500 Index	SPY SPDR S&P 500 ETF Trust Source: yfinance	754.05	-0.55%
S · S Fund Small Cap Stock Index Investment Fund	Dow Jones U.S. Completion Total Stock Market Index	VXF Vanguard Extended Market ETF Source: yfinance	234.39	-0.24%
I · I Fund International Stock Index Investment Fund	International equities (historically MSCI EAFE; broader ex-U.S. indexes may apply)	EFA iShares MSCI EAFE ETF Source: yfinance	105.02	-0.50%

Fund

Tracks / index

Proxy ETF

Proxy last

Day change

F · F Fund

Fixed Income Index Investment Fund

Bloomberg U.S. Aggregate Bond Index

AGG

iShares Core U.S. Aggregate Bond ETF

Source: yfinance

95.81

+0.01%

C · C Fund

Common Stock Index Investment Fund

S&P 500 Index

SPY

SPDR S&P 500 ETF Trust

Source: yfinance

754.05

-0.55%

S · S Fund

Small Cap Stock Index Investment Fund

Dow Jones U.S. Completion Total Stock Market Index

VXF

Vanguard Extended Market ETF

Source: yfinance

234.39

-0.24%

I · I Fund

International Stock Index Investment Fund

International equities (historically MSCI EAFE; broader ex-U.S. indexes may apply)

EFA

iShares MSCI EAFE ETF

Source: yfinance

105.02

-0.50%

Monthly allocation

May 2018

May 01, 2018 · Monthly Allocation

Allocation percentages for May 2018

F Fund 0%

C Fund 0%

S Fund 100%

I Fund 0%

Welcome to May, and the continuation of unsettled markets, political turmoil, and a potentially volatile earnings season. All of which make for a very unpredictable market. I did have a respectable return on my TSP investments last month, with the big winner being the I Fund. I would say that the I Fund looks promising for the future, but there is still too many unknown variables in the overseas markets to continue with the I Fund for the next month. The summit between Kim Jon Un and President Trump could provide a big boost for Japan or it may not, no one can agree on what the outcome will be and what impact it would have on Japan's economy and how the ASEAN countries will react. While the tariffs are still an unknown factor as they continue to be a moving target, they can still pose a risk to both the C Fund and the I Fund. I'm staying strong on stocks specifically the S Fund and will avoid the F Fund completely. You will notice that this is one of the months in which I deviate from the efficient frontier. Many factors play into this decision, to include the seasonality of the market, the Sortino Standard Deviation, and the regular Standard Deviation of the historical returns of the TSP Funds. For my system, the best investment for the next month is the S Fund. The risk present in outside forces that can affect the other funds is just too great in my opinion. Keep Investing!

Last 12 month TSP returns

G Fund

F Fund

C Fund

S Fund

I Fund

80% C / 20% S

TSP Coach

TSP fund quotes

Latest stored share prices for context with this post. Scroll sideways on small screens.

Date	L Income	L 2030	L 2035	L 2040	L 2045	L 2050	L 2055	L 2060	L 2065	L 2070	L 2075	G Fund	F Fund	C Fund	S Fund	I Fund
2026-09-16	30.9516	63.1152	19.3938	74.7409	20.7723	46.2304	24.2845	24.2811	24.2775	14.3884	12.5683	20.2182	20.5873	121.8196	113.1040	64.7938
2026-09-15	30.9724	63.2041	19.4277	74.8841	20.8151	46.3321	24.3491	24.3457	24.3422	14.4267	12.6018	20.2155	20.5933	122.3618	113.4990	64.7795
Daily Change	-0.07%	-0.14%	-0.17%	-0.19%	-0.21%	-0.22%	-0.27%	-0.27%	-0.27%	-0.27%	-0.27%	0.01%	-0.03%	-0.44%	-0.35%	0.02%
Month to Date	-0.47%	-1.04%	-1.31%	-1.44%	-1.56%	-1.66%	-1.94%	-1.95%	-1.95%	-1.95%	-1.95%	0.22%	-1.25%	-1.67%	-2.98%	-2.03%
Year to Date	5.84%	8.64%	9.7%	10.26%	10.75%	11.26%	13.32%	13.32%	13.32%	13.31%	13.31%	3.22%	-1.41%	11.24%	12.64%	16.76%
Details	L Income	L 2030	L 2035	L 2040	L 2045	L 2050	L 2055	L 2060	L 2065	L 2070	L 2075	G Fund	F Fund	C Fund	S Fund	I Fund

Year¹	TSP Coach
2005	2.66%
2006	2.46%
2007	2.82%
2008	4.10%
2009	1.85%
2010	6.00%
2011	5.89%
2012	1.89%
2013	2.71%
2014	2.50%
2015	3.69%
2016	2.91%
2017	0.90%
2018	4.38%
2019	3.76%
2020	8.01%
2021	3.02%
2022	6.07%
2023	4.62%
2024	2.84%
2025	2.98%
2026	4.77%
As of:	09/16/2026

L Income	L 2030	L 2035	L 2040	L 2045	L 2050	L 2055	L 2060	L 2065	L 2070	L 2075	G Fund	F Fund	C Fund	S Fund	I Fund
											0.04%	0.84%	2.16%	3.32%	2.77%
0.37%	1.48%		1.70%								0.04%	0.73%	1.56%	3.06%	2.60%
0.49%	1.90%		2.16%								0.05%	0.73%	2.68%	3.00%	2.77%
1.29%	4.72%		5.40%								0.05%	1.69%	5.82%	7.61%	7.47%
1.36%	4.78%		5.45%								0.03%	0.92%	6.16%	7.12%	7.65%
1.07%	3.91%		4.49%								0.04%	0.80%	5.32%	6.07%	6.56%
0.95%	3.38%		3.89%								0.04%	0.64%	4.41%	6.00%	5.43%
0.65%	2.30%		2.64%								0.01%	0.56%	2.91%	3.44%	4.59%
0.51%	1.68%		1.94%								0.03%	0.88%	2.35%	2.89%	3.29%
0.49%	1.61%		1.87%								0.01%	0.63%	2.28%	3.48%	2.71%
0.71%	2.36%		2.72%								0.02%	0.82%	3.78%	3.58%	4.11%
0.59%	1.96%		2.29%								0.02%	1.03%	2.84%	4.47%	3.47%
0.16%	0.50%		0.59%								0.01%	0.43%	1.09%	1.42%	1.17%
0.77%	2.34%		2.79%								0.02%	0.86%	4.24%	4.92%	3.45%
0.69%	2.06%		2.47%								0.03%	0.95%	3.56%	4.68%	3.16%
1.63%	4.54%		5.43%								0.03%	0.95%	7.18%	10.19%	7.30%
0.62%	1.61%	1.76%	1.91%	2.05%	2.18%	2.63%	2.63%	2.63%			0.02%	0.79%	3.05%	3.29%	2.76%
1.59%	3.79%	4.16%	4.52%	4.83%	5.13%	6.05%	6.05%	6.06%			0.07%	2.34%	6.21%	6.87%	6.42%
1.21%	2.76%	3.04%	3.31%	3.54%	3.76%	4.39%	4.39%	4.39%			0.04%	2.35%	4.07%	6.44%	4.60%
0.83%	1.82%	2.00%	2.17%	2.32%	2.46%	2.89%	2.89%	2.89%	2.88%		0.02%	1.64%	2.95%	5.13%	2.98%
0.67%	1.52%	1.67%	1.82%	1.95%	2.08%	2.52%	2.52%	2.52%	2.52%	1.10%	0.01%	0.79%	3.04%	4.29%	1.91%
1.25%	2.47%	2.91%	3.17%	3.39%	3.61%	4.33%	4.33%	4.33%	4.33%	4.33%	0.05%	1.01%	4.24%	4.46%	5.28%
¹Life starting dates for TSP funds are August 31, 2004. TSP Coach strategy has been in use since August 2004.

Year	TSP Coach
2005	10.98%
2006	23.57%
2007	10.68%
2008	-8.50%
2009	16.83%
2010	25.23%
2011	-1.61%
2012	27.39%
2013	34.94%
2014	12.67%
2015	1.56%
2016	5.37%
2017	17.89%
2018	6.56%
2019	29.24%
2020	37.47%
2021	17.60%
2022	-15.35%
2023	22.25%
2024	13.28%
CAGR	13.57%
CAGR L10Y	12.48%
CAGR L5Y	6.63%
CAGR L3Y	11.46%
As of: 01/01/2025

TSP X1^	TSP X2^	TSP Z*	TSP V*	TSP U*	TSP T*	TSP R*^	TSP Q	TSP P*
6.10%	12.90%	21.79%				19.24%	5.63%	8.54%
10.70%	22.10%	15.25%		10.88%	27.96%	21.47%	15.22%	16.11%
4.20%	2.10%	9.32%		5.33%	21.32%	16.27%	7.60%	5.82%
-6.10%	-15.40%	-7.56%	-5.53%	-10.21%	-6.14%	10.59%	2.64%	-1.87%
8.60%	19.60%	23.30%	20.94%	4.98%	6.62%	36.87%	10.74%	24.61%
7.50%	20.40%	14.54%	29.18%	4.15%	35.16%	15.63%	11.25%	22.86%
4.30%	-0.70%	5.07%	8.44%	4.66%	-10.27%	5.54%	2.63%	15.01%
7.40%	12.00%	-4.60%	13.13%	10.88%	20.62%	-2.15%	6.49%	16.41%
10.30%	17.80%	12.54%	15.39%	18.32%	28.56%	15.42%	15.50%	20.72%
3.80%	5.00%	22.73%	12.91%	10.01%	11.98%	14.69%	8.75%	2.59%
1.20%	40.00%	13.07%	11.82%	2.55%	7.84%	10.39%	-6.93%	0.71%
3.60%	6.10%	4.71%	1.66%	7.79%	5.77%	4.73%	5.75%	10.75%
8.50%	15.00%	16.51%	16.51%	11.79%	8.19%	16.84%	12.46%	14.79%
-2.30%	-6.20%	-0.17%	-2.50%	-3.59%	4.36%	2.26%	-0.26%	-7.61%
11.50%	21.90%	21.42%	0.80%	13.37%	15.48%	20.51%	4.41%	28.31%
7.44%	8.36%		8.20%	23.48%	-1.87%	17.18%	10.16%
8.24%	15.12%		17.51%	17.46%	12.06%	11.38%	5.09%
-4.78%	-10.86%		-30.80%	38.00%	1.03%	-9.66%	-5.45%
11.70%	16.77%		10.01%	12.28%	29.00%	10.12%	10.03%
11.88%	16.83%		14.31%	13.97%	23.72%	25.49%	10.10%
5.56%	10.21%	7.97%	7.03%	9.36%	11.38%	12.70%	6.43%	8.43%
5.42%	7.79%	3.99%	2.56%	12.93%	9.35%	9.41%	5.09%	4.19%
5.19%	6.96%		0.45%	15.71%	12.56%	6.82%	3.78%
7.71%	10.91%		7.94%	8.57%	16.86%	11.38%	6.60%

Year	TSP Coach
Initial	$10,000
2005	$11,038
2006	$13,580
2007	$14,970
2008	$13,638
2009	$15,873
2010	$19,817
2011	$19,438
2012	$24,703
2013	$33,274
2014	$37,429
2015	$37,953
2016	$39,931
2017	$47,015
2018	$50,039
2019	$64,611
2020	$88,760
2021	$104,322
2022	$88,249
2023	$107,824
2024	$122,083
CAGR	13.33%
CAGR L10Y	12.39%
CAGR L5Y	6.58%
CAGR L3Y	11.42%
As of: 01/01/2025

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May 2018

Last 12 month TSP returns

TSP fund quotes

Allocation history

TSP X1^	TSP X2^	TSP Z*	TSP V*	TSP U*	TSP T*	TSP R*^	TSP Q	TSP P*
$10,000	$10,000	$10,000				$10,000	$10,000	$10,000
$10,460	$11,140	$11,920		$11,038	$11,038	$11,665	$10,414	$10,755
$11,429	$13,452	$13,478		$12,040	$13,945	$13,909	$11,850	$12,389
$11,759	$13,585	$14,474	$14,970	$12,483	$16,739	$15,913	$12,602	$13,011
$10,892	$11,343	$13,121	$13,942	$11,009	$15,533	$17,339	$12,785	$12,668
$11,679	$13,416	$15,918	$16,662	$11,358	$16,382	$23,472	$14,009	$15,687
$12,405	$16,003	$17,973	$21,324	$11,631	$21,963	$26,881	$15,437	$19,174
$12,788	$15,741	$18,625	$22,923	$11,974	$19,528	$28,111	$15,694	$21,953
$13,585	$17,480	$17,509	$25,733	$13,078	$23,376	$27,247	$16,563	$25,457
$14,834	$20,441	$19,445	$29,493	$15,274	$29,873	$31,189	$18,981	$30,632
$15,248	$21,313	$23,605	$33,101	$16,604	$33,273	$35,511	$20,493	$31,327
$15,281	$29,689	$26,431	$36,813	$16,829	$35,702	$38,941	$18,924	$31,450
$15,681	$31,350	$27,416	$37,225	$17,941	$37,583	$40,523	$19,863	$34,732
$16,864	$35,902	$31,683	$43,170	$19,857	$40,482	$47,088	$22,189	$39,770
$16,326	$33,526	$31,370	$41,891	$18,945	$42,068	$47,893	$21,982	$36,644
$18,054	$40,719	$37,830	$42,026	$21,279	$48,402	$57,456	$22,803
$19,246	$43,971		$45,272	$26,076	$47,317	$67,068	$24,971
$20,682	$50,471		$52,999	$30,430	$52,845	$74,440	$26,093
$19,543	$44,839		$36,476	$41,795	$53,210	$66,990	$24,521
$21,681	$52,207		$39,927	$46,728	$68,462	$73,510	$26,832
$24,106	$60,845		$45,440	$53,057	$84,522	$91,988	$29,393
4.50%	9.45%		6.36%	8.17%	10.71%	11.73%	5.54%
4.66%	7.44%		2.13%	12.17%	9.00%	8.98%	4.50%
4.61%	6.71%		0.07%	15.27%	12.30%	6.52%	3.31%
7.24%	10.71%		7.60%	8.28%	16.68%	11.15%	6.23%