The TSP share price history is the official ledger of daily values for each Thrift Savings Plan fund—the G, F, C, S, and I Funds. This data is the most critical resource you have for seeing how your retirement investments have actually performed over the years, revealing the growth, stability, or volatility of each option. Learning how to track this history is a fundamental part of making smart choices for your federal retirement savings.

Your Quick Guide to TSP Share Prices

Getting a handle on the TSP share price history is the bedrock of managing your federal retirement account. Unlike individual stocks that see price changes all day long, each TSP fund's price is set just once per business day after the markets close. This single price reflects the net asset value (NAV) of every security held within that fund.

When you make a contribution or reallocate your money, you're really just buying shares. The number of shares you get depends entirely on the fund's price for that day. For instance, a $500 contribution would purchase 10 shares of a fund that happened to be priced at $50 per share.

Why Share Price History Matters

This historical data isn't just a boring list of numbers; it tells the story of how each fund has behaved through all kinds of economic weather. By looking back at the TSP share price history, you can see exactly how funds performed during major market events, like the 2008 financial crisis or the 2020 pandemic downturn.

This perspective helps you in a few key ways:

• Assess Risk: You can clearly see how much a fund's value has jumped around in the past. The C, S, and I Funds are known for much more volatility compared to the relative calm of the G and F Funds.
• Evaluate Growth Potential: Tracking the long-term trends—both up and down—gives you a solid feel for a fund's potential for future growth.
• Make Strategic Decisions: With historical context, you can better align your fund choices with your personal retirement timeline and how much risk you're truly comfortable with.

Key Takeaway: The G Fund's share price is unique because it's designed never to go down, making it the ultimate choice for capital preservation. On the other hand, the C, S, and I Funds mirror the stock market and can deliver significant gains or losses.

The Core TSP Funds at a Glance

Each of the five core TSP funds was created with a specific goal in mind, which is why each one has a completely different share price history. The first step in reading that history is knowing what each fund is actually invested in.

Here's a quick breakdown of the core funds and the market indexes they're built to follow.

TSP Core Funds and What They Track

Fund	Fund Name	What It Invests In
G Fund	Government Securities Investment	Unique short-term U.S. Treasury securities not available to the public.
F Fund	Fixed Income Index Investment	A broad index of U.S. government, corporate, and mortgage-backed bonds.
C Fund	Common Stock Index Investment	The S&P 500 index, representing 500 of the largest U.S. companies.
S Fund	Small Cap Stock Index Investment	U.S. stocks not included in the S&P 500, focusing on small-to-mid-sized companies.
I Fund	International Stock Index Investment	An index of stocks in over 20 developed countries outside the U.S.

In this guide, we'll dig much deeper into the specific share price history for each of these funds. We'll show you exactly how to find the official data and, more importantly, how to use it to build a retirement strategy you can feel confident in.

How TSP Share Prices Are Calculated

To really make sense of the TSP share price history, you first have to get a handle on how those prices are actually set. It's a bit different from what you see with individual stocks, which jump around all day long. TSP fund prices are calculated just once per business day, right after the markets close.

This single daily calculation is a crucial detail. It means any transaction you initiate—a contribution, a fund transfer, or a withdrawal—gets processed using that day's closing share price. You won’t know the exact price when you hit the button; that's a key distinction from trading stocks in real-time on an exchange.

The Basic Formula Explained

So, how do they arrive at that number? The TSP uses a standard method common to all mutual funds, based on what's called the Net Asset Value (NAV). The formula itself is refreshingly simple.

The Formula: (Total Market Value of All Fund Assets) ÷ (Total Number of Shares) = Share Price

At the end of every business day, this calculation is run for each of the individual TSP funds (C, S, I, F, and G). The "Total Market Value" is just a tally of everything the fund owns—all the stocks, bonds, and securities, plus any cash on hand.

A Practical Example of the Calculation

Let's break that down with a real-world example. We'll use the C Fund, which tracks the S&P 500 index.

• Step 1: At the end of the day, the TSP adds up the final value of every stock held in the C Fund. Let's say that total comes to $250 billion.
• Step 2: Next, they count up the total number of C Fund shares owned by every single TSP participant. For our example, we'll say that's 5 billion shares.
• Step 3: Finally, they just divide one by the other: $250 billion / 5 billion shares = $50.00 per share.

Simple as that. The official share price for the C Fund that day would be $50.00. If you made a $1,000 contribution, it would purchase exactly 20 shares ($1,000 ÷ $50.00). If you're curious how this applies to other funds, you can dive into our complete guide on the S Fund and how it works.

Key Misconception: Here's where people often get tripped up. Many assume their transaction locks in at the price they see when they log into their account. In reality, your transaction is always executed at the closing price for that business day, a price that isn't known until after the markets have closed for the day. This single daily price is a core feature of the TSP, and understanding it is fundamental to reading its share price history correctly.

Analyzing the Historical Performance of Core TSP Funds

Think of the TSP share price history for each core fund as its long-term story. This history tells you everything about a fund’s personality—its appetite for risk, its potential for growth, and how it tends to behave when major world events shake up the markets. Digging into these past trends gives you the context you need to build a smarter, more resilient retirement plan.

While no one can predict the future with perfect accuracy, looking back offers powerful lessons. It helps you set realistic expectations and understand the true nature of each investment you hold.

The G Fund Government Securities

The G Fund’s share price history is about as straightforward as it gets, which is a huge source of comfort if you’re trying to avoid risk. By design, its share price never goes down. It only inches upward at a rate set by the interest on special short-term U.S. Treasury securities. As you can imagine, its historical chart is just a smooth, steady line climbing higher.

This makes the G Fund the ultimate safe harbor in your portfolio. When markets were in turmoil during events like the 2008 financial crisis or the 2020 pandemic crash, the G Fund just kept on its slow and predictable path. Its entire purpose is capital preservation, not chasing big returns.

The F Fund Fixed Income

The F Fund, which mirrors the U.S. bond market, occupies the middle ground between the absolute safety of the G Fund and the volatility of the stock funds. If you look at its share price history, you'll see modest growth with occasional, shallow dips. These downturns often happen when interest rates are on the rise, which tends to lower the value of existing bonds.

A perfect example is the period of aggressive interest rate hikes that started in 2022, which put some downward pressure on the F Fund's price. But even then, its drops have historically been far less dramatic than what you see in the C, S, or I Funds, solidifying its role as a stabilizer in a well-rounded account.

The C Fund Common Stock

The C Fund tracks the S&P 500, giving you a stake in 500 of America's largest companies. Its share price history is a direct reflection of the U.S. stock market itself—characterized by impressive long-term growth that comes with sharp, stomach-churning drops along the way.

A quick glance at the C Fund's chart reveals the major market events of our time: the dot-com bubble bursting in the early 2000s, the gut-wrenching fall during the 2008 global financial crisis, and the incredibly fast plunge at the start of the COVID-19 pandemic in 2020. Just as important, though, is that the chart also shows the powerful bull markets that followed each crash, highlighting the rewards available to long-term investors who can ride out the waves.

The S Fund Small Cap Stock

The S Fund invests in small-to-mid-sized U.S. companies that aren't in the S&P 500. This fund often brings even more volatility to the table than the C Fund. Its history is marked by periods of absolutely explosive growth—sometimes outpacing the C Fund—but also by steeper and occasionally longer-lasting downturns.

This heightened risk-and-reward profile comes from the nature of smaller companies. They're more nimble and have more room to grow quickly, but they are also more vulnerable when the economy gets shaky. When the domestic economy is firing on all cylinders, the S Fund can soar, but economic uncertainty can hit it especially hard.

The I Fund International Stock

The I Fund’s performance is completely disconnected from U.S. companies, instead tracking the economies of over 20 developed countries. Because of this, its share price is influenced by a totally different set of global dynamics, such as:

• Broad international economic trends and geopolitical tensions.
• Currency exchange rate fluctuations (how the U.S. dollar stacks up against other world currencies).
• Global trade policies and diplomatic relations.

For example, if China restricts exports of a key raw material, it can send ripples through the international companies the I Fund holds. Since it often moves on a different cycle than U.S. markets, the I Fund can be an excellent diversification tool, sometimes performing well when U.S. funds are down, and vice-versa. For a deeper quantitative look at these kinds of portfolio interactions, an AI Agent for Finance Investment Analysis can help you model complex scenarios.

What About the TSP Lifecycle (L) Funds?

Beyond the five individual core funds, the TSP also offers a set of Lifecycle (L) Funds. The easiest way to think of these is as pre-mixed portfolios designed around a specific retirement date. They are essentially "funds of funds"—each L Fund holds a unique combination of the G, F, C, S, and I Funds.

The whole point of the L Funds is to put your investment strategy on autopilot throughout your federal career. When you're young and have decades until retirement, they start with an aggressive mix, leaning heavily on the stock-based C, S, and I Funds to chase growth. As you get closer to your target retirement date, the fund automatically and gradually shifts that mix toward the safer G and F Funds to preserve what you’ve earned.

This "set it and forget it" approach takes the guesswork out of asset allocation. You simply choose the L Fund with a date closest to when you plan to start using your money, and the TSP handles all the ongoing adjustments for you.

How L Fund Share Prices Work

Since L Funds are just a basket of the five core funds, their tsp share price history is simply a reflection of what's inside. An L Fund doesn't buy its own stocks or bonds; its price is a weighted average of the performance of the core funds it holds.

Think of it this way: the L 2055 Fund is built for someone planning to retire around 2055, so it's packed with a high percentage of stock funds. Its share price will naturally move in tandem with the C, S, and I Funds. On the other end of the spectrum, the L Income Fund is for people already in retirement. It's heavily weighted toward the G and F Funds, which gives it a much more stable share price with very little volatility.

This chart perfectly captures the two extremes that make up every L Fund's DNA: the aggressive growth potential of the C Fund versus the steady-as-she-goes nature of the G Fund.

As you can see, it's a classic trade-off. The C Fund offers a shot at high growth but comes with significant risk, while the G Fund’s purpose is capital preservation. L Funds are designed to blend these two worlds and adjust the mix over time.

Comparing Different L Fund Histories

Looking at the share price history of different L Funds really shows their built-in risk management at work.

• L 2050 vs. L 2030: If you pull up their historical charts, you'll immediately notice the L 2050 Fund has much bigger swings—both up and down—than the L 2030 Fund. That's because L 2050 holds more stocks, giving it more volatility but also greater potential for long-term gains.
• The "Glide Path" in Action: The L Funds automatically rebalance every quarter, shifting to a more conservative allocation as time passes. This "glide path" means that over a decade, the L 2040 Fund's share price behavior will gradually start to look more like the L 2030's did in the past as its exposure to stocks slowly decreases.

At the end of the day, an L Fund’s share price isn’t an independent number. It's the direct result of how its underlying G, F, C, S, and I Fund holdings performed, all managed automatically for your retirement timeline. For those already in or nearing retirement, you can get a deeper dive into the most conservative L Fund in our guide to the TSP Lifecycle Income Fund.

How to Access and Interpret Official TSP Data

Theory is one thing, but getting your hands on the actual numbers is where the rubber meets the road. For any serious analysis, you need the official TSP share price history, and the only place to get it is straight from the source: TSP.gov.

Using the official site ensures you're working with verified, accurate data—not third-party numbers that could be off. It’s the key to tracking your own account's journey and running scenarios for the future.

Locating Share Price Data on TSP.gov

The TSP website keeps all this information in one convenient spot, once you know where to click.

Here’s the path to find the data you need:

1. Head over to the official TSP website, TSP.gov.
2. Look for a primary menu item like "Investment Funds" or "Plan Performance."
3. From there, you should see a direct link labeled "Share Prices." This page is your destination for all historical fund data.

The page defaults to showing the latest daily share prices for every fund: G, F, C, S, I, and all of the Lifecycle (L) Funds. This is your starting point for any deeper dive.

Pro Tip: I highly recommend bookmarking the main Share Prices page in your browser. It gives you one-click access to check performance or confirm the price your latest contribution bought in at.

Viewing and Downloading Historical Data

This is where you can really start digging in. The website lets you customize the data view by selecting a specific date range. Want to see how your funds performed during a specific market downturn or since you first started contributing? You can do that right on the site.

Even better, the site has a powerful export function. You can download the data you've selected as a CSV file, which opens right up in spreadsheet software like Microsoft Excel or Google Sheets. With that raw data in hand, you can:

• Build your own performance charts to visualize growth.
• Calculate your precise, personalized rate of return.
• Model how a different fund allocation would have performed over the same period.

For those who want to get more advanced with their analysis, knowing how to download historical stock data from various sources is an invaluable skill. By pulling the data yourself, you move from being a passive observer of your account balance to an active, informed participant in your own retirement planning.

Using Historical Data to Inform Your Retirement Strategy

Looking back at TSP share price history might feel like driving while staring in the rearview mirror, but it's one of the most important steps in building a solid, forward-looking retirement plan. Of course, the old saying "past performance does not guarantee future results" always holds true. Still, this historical data gives you powerful insight into each fund's unique personality—especially its volatility and potential for long-term growth.

This is what helps you match your investments to your personal risk tolerance and, most importantly, your retirement timeline. The right strategy for a brand-new federal employee is almost always the wrong one for someone just a few years away from hanging it up.

Aligning Strategy with Your Career Stage

Where you are in your career is the single biggest factor guiding your TSP allocation. By looking at how the funds have behaved over the years, you can get a much better feel for which mix is right for you.

• For Younger Employees (20+ Years to Retirement): The C Fund's history shows a pattern of volatility, but also a strong upward trend over the long haul. With decades ahead of you to recover from any market downturns, you can typically afford to take on more risk for a shot at higher growth.
• For Mid-Career Employees (10-20 Years to Retirement): This is often a time to consider a more balanced approach. The historical performance of the L Funds demonstrates how a gradual, automated shift away from stocks (C, S, and I Funds) and toward bonds (F and G Funds) can work to protect your gains while still leaving room to grow.
• For Employees Nearing Retirement (0-10 Years): The G Fund’s remarkably stable share price history tells you everything you need to know about its purpose: capital preservation. As you get closer to needing that money, protecting your nest egg from a market crash becomes the top priority for most people.

A key insight from the data is that a fund's volatility directly correlates with its growth potential. The C Fund's history shows sharp drops followed by strong recoveries, while the G Fund's history shows a slow, steady climb. Your job is to decide where on that spectrum you are comfortable being.

Using History to Set Realistic Expectations

Studying the peaks and valleys of a fund's share price history also prepares you mentally for the ride. If you’re invested heavily in the S Fund, for instance, its past performance tells you to buckle up for significant swings. Knowing this ahead of time can be the one thing that keeps you from panic-selling during a scary market dip.

On the other hand, if you're parked entirely in the G Fund, its history shows you shouldn't be expecting the double-digit returns you might see in the stock funds. It helps set the right expectations. By understanding these historical behaviors, you can build a portfolio that lets you sleep at night.

For those ready to dive deeper and craft a personalized plan, our guide on the top TSP investment strategies for federal employees provides specific allocation models for different career stages and risk levels. Ultimately, the goal is to use the lessons from TSP history to make confident, informed decisions about your financial future.

Frequently Asked Questions About TSP Share Price History

When you're trying to make sense of your Thrift Savings Plan, it's easy to get bogged down in the numbers. You've looked at the charts, you see the daily changes, but you probably still have some specific questions. Let's tackle some of the most common ones I hear from federal employees about TSP share price history.

Why Do Share Prices Change Every Day?

The prices for the C, S, I, and F Funds move every single business day. That’s because they hold underlying assets—stocks and bonds—whose values are in constant motion. The C, S, and I Funds are collections of thousands of individual stocks, while the F Fund holds a huge portfolio of bonds.

As all those securities get traded and their market values tick up or down, the fund's total worth changes. At the end of each day, the TSP does the math: they take the fund's new total value and divide it by the number of shares out there to get the new price. The G Fund is the one outlier; its price is based on interest from special government securities and is built to only go up, never down, day-to-day.

Can a TSP Fund Price Go to Zero?

This is a great question, but for the stock funds (C, S, and I), it's so unlikely that it's practically impossible. For the C Fund to hit zero, every single one of the 500 largest companies in the United States would have to fail completely, all at the same time. The same goes for the S Fund, which would require thousands of U.S. small and mid-sized companies to go belly-up.

For the I Fund, you'd need a simultaneous collapse of major corporations across more than 20 developed countries. Any of these scenarios would mean the entire global economy has ceased to exist—an event far beyond a typical market crash. The F and G funds, being backed by bonds and government securities, carry even less risk of this kind of catastrophic failure.

Important Context: While a fund's price won't hit zero, the stock funds absolutely can—and do—see big drops during market downturns. The TSP share price history is full of examples, like in 2008 and 2020. But that history also shows that those periods of volatility have always been followed by recovery.

Does a High Share Price Mean a Fund Is "Expensive"?

Not at all. This is a common misconception. A high share price doesn't mean a fund is "expensive" or a low price doesn't signal a "bargain." The dollar value of a share is really just a historical marker—it’s a simple function of how much that fund has grown since it was first created. A fund like the C Fund, with decades of steady growth behind it, will naturally have a much higher share price than a newer or slower-growing fund.

The number you should really care about is the percentage change. A 10% gain is a 10% gain, whether it's on a $50 share or a $100 share. Both increase your investment by the exact same proportion. Always focus on the fund's growth rate and its fit with your long-term strategy, not the price tag on a single share.

To help you find quick answers, I've put together this simple index of other common questions.

Common Questions Index

Question	Brief Answer
When is the daily share price posted?	You can find the updated prices on TSP.gov each business evening, usually by 7 PM Eastern Time.
Is the G Fund price guaranteed?	The principal is protected by the U.S. government. The return rate changes, but it's guaranteed not to be negative.
Why did my transaction use a different price?	All transactions use the closing price for that business day, which can't be calculated until after the markets have closed.

Hopefully, this gives you a handy reference for those quick-fire questions that pop into your head.

How Do Stock Splits Affect TSP Share Prices?

Here’s another one that trips people up, but the answer is refreshingly simple: stock splits do not directly affect TSP share prices. If a company in the S&P 500 splits its stock, that action doesn't change the company's total value. And since the company's value hasn't changed, the total value of the C Fund, which holds that stock, also remains unchanged.

The TSP funds themselves never split. Their share prices are a direct reflection of the net asset value of everything they hold. This is a major difference from owning individual stocks, where splits are fairly common. Your focus should stay right where it belongs: on the overall performance trends you see in the TSP share price history.

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