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I Fund

Why the TSP’s I Fund Is Outperforming—and How Long the Advantage May Last

FedSmith.com author Ralph R. SmithBy Ralph R. SmithFeb 28, 2026 10:26 AM Categories Pay & Benefits Leave a comment
World map overlaid by rising investment performance lines and bar charts and foreign currency symbols

The TSP’s I Fund is still outperforming U.S. stock funds. The trend has momentum, but it is not guaranteed to last. Here’s what is driving the I Fund’s performance.

Time to Rethink the TSP I Fund: International Stock Index Investment Fund

FedSmith.com author Brennan RhuleBy Brennan RhuleDec 10, 2025 8:15 AM | Updated: Dec 11, 2025 10:25 AM Categories Pay & Benefits Leave a comment
Small globe pictured on top of a spread of international currency

Despite its recent strong performance, many federal employees are still avoiding investing in the I Fund.

How TSP Performance in 2025 Compares to the Dot.Com Bubble

FedSmith.com author Ralph R. SmithBy Ralph R. SmithNov 1, 2025 11:45 AM Categories Pay & Benefits Leave a comment
Small globe pictured on top of a spread of international currency

TSP performance for all funds in October was positive. Is the current market similar to the dot.com stock bubble?

TSP Dog? Which TSP Fund Has Highest Returns in 2025 and Why?

FedSmith.com author Ralph R. SmithBy Ralph R. SmithAug 26, 2025 12:51 PM Categories Pay & Benefits Leave a comment
Roll of $100 bills next to a green world globe

Everyone’s watching the usual TSP stars, but the real action is with the underdog. Meet the I Fund: the quiet TSP dog making noise.

TSP Hits $1 Trillion: A Look at July’s TSP Performance Surge

FedSmith.com author Ralph R. SmithBy Ralph R. SmithAug 1, 2025 9:47 AM Categories Pay & Benefits Leave a comment
Bull market - bull with his head tilted slight down and horns protruding against a line graph in the background

TSP funds went up in July with two exceptions. Why did two funds decline? What is in the C and S Funds?

Panicking Over Your TSP? Time to Look at I Fund In Your TSP Portfolio?

FedSmith.com author Ralph R. SmithBy Ralph R. SmithApr 10, 2025 9:04 AM Categories Pay & Benefits Leave a comment
Roll of $100 bills next to a green world globe

Investment returns change as the markets change. Diversification decreases risk. Are TSP investors adequately invested in the I Fund? And what did the CPI do in March?

TSP’s I Fund Now Tracking New Index

FedSmith.com author Ian SmithBy Ian SmithSep 10, 2024 1:31 PM Categories Pay & Benefits Leave a comment
Glass globe over stock data on computer screen

The TSP’s I Fund now tracks a new benchmark index, a change that has been a long time coming.

Changes in TSP and S Fund Up 6%+

FedSmith.com author Ralph R. SmithBy Ralph R. SmithMay 21, 2024 11:56 AM Categories Pay & Benefits Leave a comment
Close up of a person's finger touching a green key on a keyboard with white letters that read 'TSP Thrift Savings Plan'

Several changes in the TSP make it easier to use this important federal employee benefit as the mobile app is gaining acceptance. TSP Funds are roaring back so far in May!

A New Year and A New Benchmark Index for the TSP I Fund

FedSmith.com author David FeiBy David FeiMar 29, 2024 8:57 AM | Updated: Apr 21, 2024 4:22 PM Categories Pay & Benefits Leave a comment
Small globe pictured on top of a spread of international currency

What is the new benchmark index for the TSP’s I Fund all about?

Sort of Small Cap and Incomplete International: Going Inside TSP’s Most Misunderstood Funds

FedSmith.com author Jennifer MeyerBy Jennifer MeyerMar 14, 2024 2:21 PM Categories Pay & Benefits
Rolled up currency bills in rows with a focus on the US dollar and Chinese yuan in the middle depicting global finance/international stocks

The TSP’s I and S Funds may no be all that they appear to be on the surface.

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Daily TSP Performance

March 3, 2026

Fund Last % YTD
G Fund $19.7308 +0.01% +0.73%
F Fund $21.1564 -0.08% +1.32%
C Fund $109.2716 -0.94% -0.22%
S Fund $102.9777 -1.72% +2.56%
I Fund $59.1413 -3.64% +6.58%
L Income $29.6158 -0.54% +1.27%
L 2030 $59.1482 -1.13% +1.81%
L 2035 $18.0275 -1.30% +1.97%
L 2040 $69.1918 -1.42% +2.07%
L 2045 $19.1619 -1.52% +2.16%
L 2050 $42.4860 -1.62% +2.25%
L 2055 $21.9666 -1.96% +2.51%
L 2060 $21.9642 -1.96% +2.51%
L 2065 $21.9617 -1.96% +2.51%
L 2070 $13.0165 -1.96% +2.51%
L 2075 $11.3699 -1.96% +2.51%
Get detailed TSP data at TSPDataCenter.com

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